() { //
49 | @Override
50 | public void initChannel(SocketChannel ch) throws Exception {
51 | ch.pipeline().addLast("idleStateHandler",
52 | new IdleStateHandler(TPMSConsts.tcp_client_idle_minutes, 0, 0, TimeUnit.MINUTES));
53 | ch.pipeline().addLast(new Decoder4LoggingOnly());
54 | // 1024表示单条消息的最大长度，解码器在查找分隔符的时候，达到该长度还没找到的话会抛异常
55 | // ch.pipeline().addLast(
56 | // new DelimiterBasedFrameDecoder(2048, Unpooled.copiedBuffer(new byte[] { 0x7e }),
57 | // Unpooled.copiedBuffer(new byte[] { 0x7e, 0x7e })));
58 |
59 | // 分隔符解码方式
60 | ByteBuf delimiter = Unpooled.copiedBuffer(new byte[]{0x7e});
61 | ch.pipeline().addLast(
62 | new DelimiterBasedFrameDecoder(1024, delimiter,delimiter));
63 |
64 | //ch.pipeline().addLast(new PackageDataDecoder());
65 | ch.pipeline().addLast(new TCPServerHandler());
66 | }
67 | }).option(ChannelOption.SO_BACKLOG, 128) //
68 | .childOption(ChannelOption.SO_KEEPALIVE, true);
69 |
70 | this.log.info("TCP服务启动完毕,port={}", this.port);
71 | ChannelFuture channelFuture = serverBootstrap.bind(port).sync();
72 |
73 | channelFuture.channel().closeFuture().sync();
74 | }
75 |
76 | public synchronized void startServer() {
77 | if (this.isRunning) {
78 | throw new IllegalStateException(this.getName() + " is already started .");
79 | }
80 | this.isRunning = true;
81 |
82 | new Thread(() -> {
83 | try {
84 | this.bind();
85 | } catch (Exception e) {
86 | this.log.info("TCP服务启动出错:{}", e.getMessage());
87 | e.printStackTrace();
88 | }
89 | }, this.getName()).start();
90 | }
91 |
92 | public synchronized void stopServer() {
93 | if (!this.isRunning) {
94 | throw new IllegalStateException(this.getName() + " is not yet started .");
95 | }
96 | this.isRunning = false;
97 |
98 | try {
99 | Future future = this.workerGroup.shutdownGracefully().await();
100 | if (!future.isSuccess()) {
101 | log.error("workerGroup 无法正常停止:{}", future.cause());
102 | }
103 |
104 | future = this.bossGroup.shutdownGracefully().await();
105 | if (!future.isSuccess()) {
106 | log.error("bossGroup 无法正常停止:{}", future.cause());
107 | }
108 | } catch (InterruptedException e) {
109 | e.printStackTrace();
110 | }
111 |
112 | this.log.info("TCP服务已经停止...");
113 | }
114 |
115 | private String getName() {
116 | return "TCP-Server";
117 | }
118 |
119 | public static void main(String[] args) throws Exception {
120 | TCPServer server = new TCPServer(20048);
121 | server.startServer();
122 |
123 | // Thread.sleep(3000);
124 | // server.stopServer();
125 | }
126 | }
--------------------------------------------------------------------------------
/jt808-tcp-netty/src/main/java/cn/hylexus/jt808/service/codec/MsgEncoder.java:
--------------------------------------------------------------------------------
1 | package cn.hylexus.jt808.service.codec;
2 |
3 | import java.util.Arrays;
4 |
5 | import cn.hylexus.jt808.common.TPMSConsts;
6 | import cn.hylexus.jt808.util.BitOperator;
7 | import cn.hylexus.jt808.util.JT808ProtocolUtils;
8 | import cn.hylexus.jt808.vo.PackageData;
9 | import cn.hylexus.jt808.vo.Session;
10 | import cn.hylexus.jt808.vo.req.TerminalRegisterMsg;
11 | import cn.hylexus.jt808.vo.resp.ServerCommonRespMsgBody;
12 | import cn.hylexus.jt808.vo.resp.TerminalRegisterMsgRespBody;
13 |
14 | public class MsgEncoder {
15 | private BitOperator bitOperator;
16 | private JT808ProtocolUtils jt808ProtocolUtils;
17 |
18 | public MsgEncoder() {
19 | this.bitOperator = new BitOperator();
20 | this.jt808ProtocolUtils = new JT808ProtocolUtils();
21 | }
22 |
23 | public byte[] encode4TerminalRegisterResp(TerminalRegisterMsg req, TerminalRegisterMsgRespBody respMsgBody,
24 | int flowId) throws Exception {
25 | // 消息体字节数组
26 | byte[] msgBody = null;
27 | // 鉴权码(STRING) 只有在成功后才有该字段
28 | if (respMsgBody.getReplyCode() == TerminalRegisterMsgRespBody.success) {
29 | msgBody = this.bitOperator.concatAll(Arrays.asList(//
30 | bitOperator.integerTo2Bytes(respMsgBody.getReplyFlowId()), // 流水号(2)
31 | new byte[] { respMsgBody.getReplyCode() }, // 结果
32 | respMsgBody.getReplyToken().getBytes(TPMSConsts.string_charset)// 鉴权码(STRING)
33 | ));
34 | } else {
35 | msgBody = this.bitOperator.concatAll(Arrays.asList(//
36 | bitOperator.integerTo2Bytes(respMsgBody.getReplyFlowId()), // 流水号(2)
37 | new byte[] { respMsgBody.getReplyCode() }// 错误代码
38 | ));
39 | }
40 |
41 | // 消息头
42 | int msgBodyProps = this.jt808ProtocolUtils.generateMsgBodyProps(msgBody.length, 0b000, false, 0);
43 | byte[] msgHeader = this.jt808ProtocolUtils.generateMsgHeader(req.getMsgHeader().getTerminalPhone(),
44 | TPMSConsts.cmd_terminal_register_resp, msgBody, msgBodyProps, flowId);
45 | byte[] headerAndBody = this.bitOperator.concatAll(msgHeader, msgBody);
46 |
47 | // 校验码
48 | //int checkSum = this.bitOperator.getCheckSum4JT808(headerAndBody, 0, headerAndBody.length - 1);
49 | //作用是把校验码去掉。编码器这里就不应该 -1 了。
50 | int checkSum = this.bitOperator.getCheckSum4JT808(headerAndBody, 0, headerAndBody.length);
51 |
52 | // 连接并且转义
53 | return this.doEncode(headerAndBody, checkSum);
54 | }
55 |
56 | // public byte[] encode4ServerCommonRespMsg(TerminalAuthenticationMsg req,
57 | // ServerCommonRespMsgBody respMsgBody, int flowId) throws Exception {
58 | public byte[] encode4ServerCommonRespMsg(PackageData req, ServerCommonRespMsgBody respMsgBody, int flowId)
59 | throws Exception {
60 | byte[] msgBody = this.bitOperator.concatAll(Arrays.asList(//
61 | bitOperator.integerTo2Bytes(respMsgBody.getReplyFlowId()), // 应答流水号
62 | bitOperator.integerTo2Bytes(respMsgBody.getReplyId()), // 应答ID,对应的终端消息的ID
63 | new byte[] { respMsgBody.getReplyCode() }// 结果
64 | ));
65 |
66 | // 消息头
67 | int msgBodyProps = this.jt808ProtocolUtils.generateMsgBodyProps(msgBody.length, 0b000, false, 0);
68 | byte[] msgHeader = this.jt808ProtocolUtils.generateMsgHeader(req.getMsgHeader().getTerminalPhone(),
69 | TPMSConsts.cmd_common_resp, msgBody, msgBodyProps, flowId);
70 | byte[] headerAndBody = this.bitOperator.concatAll(msgHeader, msgBody);
71 | // 校验码
72 | int checkSum = this.bitOperator.getCheckSum4JT808(headerAndBody, 0, headerAndBody.length - 1);
73 | // 连接并且转义
74 | return this.doEncode(headerAndBody, checkSum);
75 | }
76 |
77 | public byte[] encode4ParamSetting(byte[] msgBodyBytes, Session session) throws Exception {
78 | // 消息头
79 | int msgBodyProps = this.jt808ProtocolUtils.generateMsgBodyProps(msgBodyBytes.length, 0b000, false, 0);
80 | byte[] msgHeader = this.jt808ProtocolUtils.generateMsgHeader(session.getTerminalPhone(),
81 | TPMSConsts.cmd_terminal_param_settings, msgBodyBytes, msgBodyProps, session.currentFlowId());
82 | // 连接消息头和消息体
83 | byte[] headerAndBody = this.bitOperator.concatAll(msgHeader, msgBodyBytes);
84 | // 校验码
85 | int checkSum = this.bitOperator.getCheckSum4JT808(headerAndBody, 0, headerAndBody.length - 1);
86 | // 连接并且转义
87 | return this.doEncode(headerAndBody, checkSum);
88 | }
89 |
90 | private byte[] doEncode(byte[] headerAndBody, int checkSum) throws Exception {
91 | byte[] noEscapedBytes = this.bitOperator.concatAll(Arrays.asList(//
92 | new byte[] { TPMSConsts.pkg_delimiter }, // 0x7e
93 | headerAndBody, // 消息头+ 消息体
94 | bitOperator.integerTo1Bytes(checkSum), // 校验码
95 | new byte[] { TPMSConsts.pkg_delimiter }// 0x7e
96 | ));
97 | // 转义
98 | return jt808ProtocolUtils.doEscape4Send(noEscapedBytes, 1, noEscapedBytes.length - 2);
99 | }
100 | }
101 |
--------------------------------------------------------------------------------
/jt808-tcp-netty/src/main/java/cn/hylexus/jt808/util/JT808ProtocolUtils.java:
--------------------------------------------------------------------------------
1 | package cn.hylexus.jt808.util;
2 |
3 | import java.io.ByteArrayOutputStream;
4 |
5 | import org.slf4j.Logger;
6 | import org.slf4j.LoggerFactory;
7 |
8 | /**
9 | * JT808协议转义工具类
10 | *
11 | *
12 | * 0x7d01 <====> 0x7d
13 | * 0x7d02 <====> 0x7e
14 | *
15 | *
16 | * @author hylexus
17 | *
18 | */
19 | public class JT808ProtocolUtils {
20 | private final Logger log = LoggerFactory.getLogger(getClass());
21 | private BitOperator bitOperator;
22 | private BCD8421Operater bcd8421Operater;
23 |
24 | public JT808ProtocolUtils() {
25 | this.bitOperator = new BitOperator();
26 | this.bcd8421Operater = new BCD8421Operater();
27 | }
28 |
29 | /**
30 | * 接收消息时转义
31 | *
32 | *
33 | * 0x7d01 <====> 0x7d
34 | * 0x7d02 <====> 0x7e
35 | *
36 | *
37 | * @param bs
38 | * 要转义的字节数组
39 | * @param start
40 | * 起始索引
41 | * @param end
42 | * 结束索引
43 | * @return 转义后的字节数组
44 | * @throws Exception
45 | */
46 | public byte[] doEscape4Receive(byte[] bs, int start, int end) throws Exception {
47 | if (start < 0 || end > bs.length)
48 | throw new ArrayIndexOutOfBoundsException("doEscape4Receive error : index out of bounds(start=" + start
49 | + ",end=" + end + ",bytes length=" + bs.length + ")");
50 | ByteArrayOutputStream baos = null;
51 | try {
52 | baos = new ByteArrayOutputStream();
53 | for (int i = 0; i < start; i++) {
54 | baos.write(bs[i]);
55 | }
56 | for (int i = start; i < end - 1; i++) {
57 | if (bs[i] == 0x7d && bs[i + 1] == 0x01) {
58 | baos.write(0x7d);
59 | i++;
60 | } else if (bs[i] == 0x7d && bs[i + 1] == 0x02) {
61 | baos.write(0x7e);
62 | i++;
63 | } else {
64 | baos.write(bs[i]);
65 | }
66 | }
67 | for (int i = end - 1; i < bs.length; i++) {
68 | baos.write(bs[i]);
69 | }
70 | return baos.toByteArray();
71 | } catch (Exception e) {
72 | throw e;
73 | } finally {
74 | if (baos != null) {
75 | baos.close();
76 | baos = null;
77 | }
78 | }
79 | }
80 |
81 | /**
82 | *
83 | * 发送消息时转义
84 | *
85 | *
86 | * 0x7e <====> 0x7d02
87 | *
88 | *
89 | * @param bs
90 | * 要转义的字节数组
91 | * @param start
92 | * 起始索引
93 | * @param end
94 | * 结束索引
95 | * @return 转义后的字节数组
96 | * @throws Exception
97 | */
98 | public byte[] doEscape4Send(byte[] bs, int start, int end) throws Exception {
99 | if (start < 0 || end > bs.length)
100 | throw new ArrayIndexOutOfBoundsException("doEscape4Send error : index out of bounds(start=" + start
101 | + ",end=" + end + ",bytes length=" + bs.length + ")");
102 | ByteArrayOutputStream baos = null;
103 | try {
104 | baos = new ByteArrayOutputStream();
105 | for (int i = 0; i < start; i++) {
106 | baos.write(bs[i]);
107 | }
108 | for (int i = start; i < end; i++) {
109 | if (bs[i] == 0x7e) {
110 | baos.write(0x7d);
111 | baos.write(0x02);
112 | } else {
113 | baos.write(bs[i]);
114 | }
115 | }
116 | for (int i = end; i < bs.length; i++) {
117 | baos.write(bs[i]);
118 | }
119 | return baos.toByteArray();
120 | } catch (Exception e) {
121 | throw e;
122 | } finally {
123 | if (baos != null) {
124 | baos.close();
125 | baos = null;
126 | }
127 | }
128 | }
129 |
130 | public int generateMsgBodyProps(int msgLen, int enctyptionType, boolean isSubPackage, int reversed_14_15) {
131 | // [ 0-9 ] 0000,0011,1111,1111(3FF)(消息体长度)
132 | // [10-12] 0001,1100,0000,0000(1C00)(加密类型)
133 | // [ 13_ ] 0010,0000,0000,0000(2000)(是否有子包)
134 | // [14-15] 1100,0000,0000,0000(C000)(保留位)
135 | if (msgLen >= 1024)
136 | log.warn("The max value of msgLen is 1023, but {} .", msgLen);
137 | int subPkg = isSubPackage ? 1 : 0;
138 | int ret = (msgLen & 0x3FF) | ((enctyptionType << 10) & 0x1C00) | ((subPkg << 13) & 0x2000)
139 | | ((reversed_14_15 << 14) & 0xC000);
140 | return ret & 0xffff;
141 | }
142 |
143 | public byte[] generateMsgHeader(String phone, int msgType, byte[] body, int msgBodyProps, int flowId)
144 | throws Exception {
145 | ByteArrayOutputStream baos = null;
146 | try {
147 | baos = new ByteArrayOutputStream();
148 | // 1. 消息ID word(16)
149 | baos.write(bitOperator.integerTo2Bytes(msgType));
150 | // 2. 消息体属性 word(16)
151 | baos.write(bitOperator.integerTo2Bytes(msgBodyProps));
152 | // 3. 终端手机号 bcd[6]
153 | baos.write(bcd8421Operater.string2Bcd(phone));
154 | // 4. 消息流水号 word(16),按发送顺序从 0 开始循环累加
155 | baos.write(bitOperator.integerTo2Bytes(flowId));
156 | // 消息包封装项 此处不予考虑
157 | return baos.toByteArray();
158 | } finally {
159 | if (baos != null) {
160 | baos.close();
161 | }
162 | }
163 | }
164 | }
165 |
--------------------------------------------------------------------------------
/jt808-tcp-netty/src/main/java/cn/hylexus/jt808/vo/PackageData.java:
--------------------------------------------------------------------------------
1 | package cn.hylexus.jt808.vo;
2 |
3 | import java.util.Arrays;
4 |
5 | import com.alibaba.fastjson.annotation.JSONField;
6 |
7 | import io.netty.channel.Channel;
8 |
9 | public class PackageData {
10 |
11 | /**
12 | * 16byte 消息头
13 | */
14 | protected MsgHeader msgHeader;
15 |
16 | // 消息体字节数组
17 | @JSONField(serialize=false)
18 | protected byte[] msgBodyBytes;
19 |
20 | /**
21 | * 校验码 1byte
22 | */
23 | protected int checkSum;
24 |
25 | @JSONField(serialize=false)
26 | protected Channel channel;
27 |
28 | public MsgHeader getMsgHeader() {
29 | return msgHeader;
30 | }
31 |
32 | public void setMsgHeader(MsgHeader msgHeader) {
33 | this.msgHeader = msgHeader;
34 | }
35 |
36 | public byte[] getMsgBodyBytes() {
37 | return msgBodyBytes;
38 | }
39 |
40 | public void setMsgBodyBytes(byte[] msgBodyBytes) {
41 | this.msgBodyBytes = msgBodyBytes;
42 | }
43 |
44 | public int getCheckSum() {
45 | return checkSum;
46 | }
47 |
48 | public void setCheckSum(int checkSum) {
49 | this.checkSum = checkSum;
50 | }
51 |
52 | public Channel getChannel() {
53 | return channel;
54 | }
55 |
56 | public void setChannel(Channel channel) {
57 | this.channel = channel;
58 | }
59 |
60 | @Override
61 | public String toString() {
62 | return "PackageData [msgHeader=" + msgHeader + ", msgBodyBytes=" + Arrays.toString(msgBodyBytes) + ", checkSum="
63 | + checkSum + ", address=" + channel + "]";
64 | }
65 |
66 | public static class MsgHeader {
67 | // 消息ID
68 | protected int msgId;
69 |
70 | /////// ========消息体属性
71 | // byte[2-3]
72 | protected int msgBodyPropsField;
73 | // 消息体长度
74 | protected int msgBodyLength;
75 | // 数据加密方式
76 | protected int encryptionType;
77 | // 是否分包,true==>有消息包封装项
78 | protected boolean hasSubPackage;
79 | // 保留位[14-15]
80 | protected String reservedBit;
81 | /////// ========消息体属性
82 |
83 | // 终端手机号
84 | protected String terminalPhone;
85 | // 流水号
86 | protected int flowId;
87 |
88 | //////// =====消息包封装项
89 | // byte[12-15]
90 | protected int packageInfoField;
91 | // 消息包总数(word(16))
92 | protected long totalSubPackage;
93 | // 包序号(word(16))这次发送的这个消息包是分包中的第几个消息包, 从 1 开始
94 | protected long subPackageSeq;
95 | //////// =====消息包封装项
96 |
97 | public int getMsgId() {
98 | return msgId;
99 | }
100 |
101 | public void setMsgId(int msgId) {
102 | this.msgId = msgId;
103 | }
104 |
105 | public int getMsgBodyLength() {
106 | return msgBodyLength;
107 | }
108 |
109 | public void setMsgBodyLength(int msgBodyLength) {
110 | this.msgBodyLength = msgBodyLength;
111 | }
112 |
113 | public int getEncryptionType() {
114 | return encryptionType;
115 | }
116 |
117 | public void setEncryptionType(int encryptionType) {
118 | this.encryptionType = encryptionType;
119 | }
120 |
121 | public String getTerminalPhone() {
122 | return terminalPhone;
123 | }
124 |
125 | public void setTerminalPhone(String terminalPhone) {
126 | this.terminalPhone = terminalPhone;
127 | }
128 |
129 | public int getFlowId() {
130 | return flowId;
131 | }
132 |
133 | public void setFlowId(int flowId) {
134 | this.flowId = flowId;
135 | }
136 |
137 | public boolean isHasSubPackage() {
138 | return hasSubPackage;
139 | }
140 |
141 | public void setHasSubPackage(boolean hasSubPackage) {
142 | this.hasSubPackage = hasSubPackage;
143 | }
144 |
145 | public String getReservedBit() {
146 | return reservedBit;
147 | }
148 |
149 | public void setReservedBit(String reservedBit) {
150 | this.reservedBit = reservedBit;
151 | }
152 |
153 | public long getTotalSubPackage() {
154 | return totalSubPackage;
155 | }
156 |
157 | public void setTotalSubPackage(long totalPackage) {
158 | this.totalSubPackage = totalPackage;
159 | }
160 |
161 | public long getSubPackageSeq() {
162 | return subPackageSeq;
163 | }
164 |
165 | public void setSubPackageSeq(long packageSeq) {
166 | this.subPackageSeq = packageSeq;
167 | }
168 |
169 | public int getMsgBodyPropsField() {
170 | return msgBodyPropsField;
171 | }
172 |
173 | public void setMsgBodyPropsField(int msgBodyPropsField) {
174 | this.msgBodyPropsField = msgBodyPropsField;
175 | }
176 |
177 | public void setPackageInfoField(int packageInfoField) {
178 | this.packageInfoField = packageInfoField;
179 | }
180 |
181 | public int getPackageInfoField() {
182 | return packageInfoField;
183 | }
184 |
185 | @Override
186 | public String toString() {
187 | return "MsgHeader [msgId=" + msgId + ", msgBodyPropsField=" + msgBodyPropsField + ", msgBodyLength="
188 | + msgBodyLength + ", encryptionType=" + encryptionType + ", hasSubPackage=" + hasSubPackage
189 | + ", reservedBit=" + reservedBit + ", terminalPhone=" + terminalPhone + ", flowId=" + flowId
190 | + ", packageInfoField=" + packageInfoField + ", totalSubPackage=" + totalSubPackage
191 | + ", subPackageSeq=" + subPackageSeq + "]";
192 | }
193 |
194 | }
195 |
196 | }
197 |
--------------------------------------------------------------------------------
/jt808-tcp-netty/src/main/java/cn/hylexus/jt808/service/TerminalMsgProcessService.java:
--------------------------------------------------------------------------------
1 | package cn.hylexus.jt808.service;
2 |
3 | import cn.hylexus.jt808.vo.req.LocationInfoUploadMsg;
4 | import org.slf4j.Logger;
5 | import org.slf4j.LoggerFactory;
6 |
7 | import com.alibaba.fastjson.JSON;
8 |
9 | import cn.hylexus.jt808.server.SessionManager;
10 | import cn.hylexus.jt808.service.codec.MsgEncoder;
11 | import cn.hylexus.jt808.vo.PackageData;
12 | import cn.hylexus.jt808.vo.PackageData.MsgHeader;
13 | import cn.hylexus.jt808.vo.Session;
14 | import cn.hylexus.jt808.vo.req.TerminalAuthenticationMsg;
15 | import cn.hylexus.jt808.vo.req.TerminalRegisterMsg;
16 | import cn.hylexus.jt808.vo.resp.ServerCommonRespMsgBody;
17 | import cn.hylexus.jt808.vo.resp.TerminalRegisterMsgRespBody;
18 |
19 | public class TerminalMsgProcessService extends BaseMsgProcessService {
20 |
21 | private final Logger log = LoggerFactory.getLogger(getClass());
22 | private MsgEncoder msgEncoder;
23 | private SessionManager sessionManager;
24 |
25 | public TerminalMsgProcessService() {
26 | this.msgEncoder = new MsgEncoder();
27 | this.sessionManager = SessionManager.getInstance();
28 | }
29 |
30 | public void processRegisterMsg(TerminalRegisterMsg msg) throws Exception {
31 | log.debug("终端注册:{}", JSON.toJSONString(msg, true));
32 |
33 | final String sessionId = Session.buildId(msg.getChannel());
34 | Session session = sessionManager.findBySessionId(sessionId);
35 | if (session == null) {
36 | session = Session.buildSession(msg.getChannel(), msg.getMsgHeader().getTerminalPhone());
37 | }
38 | session.setAuthenticated(true);
39 | session.setTerminalPhone(msg.getMsgHeader().getTerminalPhone());
40 | sessionManager.put(session.getId(), session);
41 |
42 | TerminalRegisterMsgRespBody respMsgBody = new TerminalRegisterMsgRespBody();
43 | respMsgBody.setReplyCode(TerminalRegisterMsgRespBody.success);
44 | respMsgBody.setReplyFlowId(msg.getMsgHeader().getFlowId());
45 | // TODO 鉴权码暂时写死
46 | respMsgBody.setReplyToken("123");
47 | int flowId = super.getFlowId(msg.getChannel());
48 | byte[] bs = this.msgEncoder.encode4TerminalRegisterResp(msg, respMsgBody, flowId);
49 |
50 | super.send2Client(msg.getChannel(), bs);
51 | }
52 |
53 | public void processAuthMsg(TerminalAuthenticationMsg msg) throws Exception {
54 | // TODO 暂时每次鉴权都成功
55 |
56 | log.debug("终端鉴权:{}", JSON.toJSONString(msg, true));
57 |
58 | final String sessionId = Session.buildId(msg.getChannel());
59 | Session session = sessionManager.findBySessionId(sessionId);
60 | if (session == null) {
61 | session = Session.buildSession(msg.getChannel(), msg.getMsgHeader().getTerminalPhone());
62 | }
63 | session.setAuthenticated(true);
64 | session.setTerminalPhone(msg.getMsgHeader().getTerminalPhone());
65 | sessionManager.put(session.getId(), session);
66 |
67 | ServerCommonRespMsgBody respMsgBody = new ServerCommonRespMsgBody();
68 | respMsgBody.setReplyCode(ServerCommonRespMsgBody.success);
69 | respMsgBody.setReplyFlowId(msg.getMsgHeader().getFlowId());
70 | respMsgBody.setReplyId(msg.getMsgHeader().getMsgId());
71 | int flowId = super.getFlowId(msg.getChannel());
72 | byte[] bs = this.msgEncoder.encode4ServerCommonRespMsg(msg, respMsgBody, flowId);
73 | super.send2Client(msg.getChannel(), bs);
74 | }
75 |
76 | public void processTerminalHeartBeatMsg(PackageData req) throws Exception {
77 | log.debug("心跳信息:{}", JSON.toJSONString(req, true));
78 | final MsgHeader reqHeader = req.getMsgHeader();
79 | ServerCommonRespMsgBody respMsgBody = new ServerCommonRespMsgBody(reqHeader.getFlowId(), reqHeader.getMsgId(),
80 | ServerCommonRespMsgBody.success);
81 | int flowId = super.getFlowId(req.getChannel());
82 | byte[] bs = this.msgEncoder.encode4ServerCommonRespMsg(req, respMsgBody, flowId);
83 | super.send2Client(req.getChannel(), bs);
84 | }
85 |
86 | public void processTerminalLogoutMsg(PackageData req) throws Exception {
87 | log.info("终端注销:{}", JSON.toJSONString(req, true));
88 | final MsgHeader reqHeader = req.getMsgHeader();
89 | ServerCommonRespMsgBody respMsgBody = new ServerCommonRespMsgBody(reqHeader.getFlowId(), reqHeader.getMsgId(),
90 | ServerCommonRespMsgBody.success);
91 | int flowId = super.getFlowId(req.getChannel());
92 | byte[] bs = this.msgEncoder.encode4ServerCommonRespMsg(req, respMsgBody, flowId);
93 | super.send2Client(req.getChannel(), bs);
94 | }
95 |
96 | public void processLocationInfoUploadMsg(LocationInfoUploadMsg req) throws Exception {
97 | log.debug("位置 信息:{}", JSON.toJSONString(req, true));
98 | final MsgHeader reqHeader = req.getMsgHeader();
99 | ServerCommonRespMsgBody respMsgBody = new ServerCommonRespMsgBody(reqHeader.getFlowId(), reqHeader.getMsgId(),
100 | ServerCommonRespMsgBody.success);
101 | int flowId = super.getFlowId(req.getChannel());
102 | byte[] bs = this.msgEncoder.encode4ServerCommonRespMsg(req, respMsgBody, flowId);
103 | super.send2Client(req.getChannel(), bs);
104 | }
105 | }
106 |
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/jt808-tcp-netty/src/main/resources/log4j.xml:
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/jt808-tcp-netty/src/main/java/cn/hylexus/jt808/service/handler/TCPServerHandler.java:
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1 | package cn.hylexus.jt808.service.handler;
2 |
3 | import cn.hylexus.jt808.vo.req.LocationInfoUploadMsg;
4 | import org.slf4j.Logger;
5 | import org.slf4j.LoggerFactory;
6 |
7 | import cn.hylexus.jt808.common.TPMSConsts;
8 | import cn.hylexus.jt808.server.SessionManager;
9 | import cn.hylexus.jt808.service.TerminalMsgProcessService;
10 | import cn.hylexus.jt808.service.codec.MsgDecoder;
11 | import cn.hylexus.jt808.vo.PackageData;
12 | import cn.hylexus.jt808.vo.PackageData.MsgHeader;
13 | import cn.hylexus.jt808.vo.Session;
14 | import cn.hylexus.jt808.vo.req.TerminalAuthenticationMsg;
15 | import cn.hylexus.jt808.vo.req.TerminalRegisterMsg;
16 | import io.netty.buffer.ByteBuf;
17 | import io.netty.channel.ChannelHandlerContext;
18 | import io.netty.channel.ChannelInboundHandlerAdapter;
19 | import io.netty.handler.timeout.IdleState;
20 | import io.netty.handler.timeout.IdleStateEvent;
21 | import io.netty.util.ReferenceCountUtil;
22 |
23 | public class TCPServerHandler extends ChannelInboundHandlerAdapter { // (1)
24 |
25 | private final Logger logger = LoggerFactory.getLogger(getClass());
26 |
27 | private final SessionManager sessionManager;
28 | private final MsgDecoder decoder;
29 | private TerminalMsgProcessService msgProcessService;
30 |
31 | public TCPServerHandler() {
32 | this.sessionManager = SessionManager.getInstance();
33 | this.decoder = new MsgDecoder();
34 | this.msgProcessService = new TerminalMsgProcessService();
35 | }
36 |
37 | @Override
38 | public void channelRead(ChannelHandlerContext ctx, Object msg) throws InterruptedException { // (2)
39 | try {
40 | ByteBuf buf = (ByteBuf) msg;
41 | if (buf.readableBytes() <= 0) {
42 | // ReferenceCountUtil.safeRelease(msg);
43 | return;
44 | }
45 |
46 | byte[] bs = new byte[buf.readableBytes()];
47 |
48 | //bs="7e0100002c0200000000150025002c0133373039363054372d54383038000000000000000000000000003033323931373001d4c142383838387b7e".getBytes();
49 |
50 | buf.readBytes(bs);
51 |
52 | // 字节数据转换为针对于808消息结构的实体类
53 | PackageData pkg = this.decoder.bytes2PackageData(bs);
54 | // 引用channel,以便回送数据给硬件
55 | pkg.setChannel(ctx.channel());
56 | this.processPackageData(pkg);
57 | } finally {
58 | release(msg);
59 | }
60 | }
61 |
62 | /**
63 | *
64 | * 处理业务逻辑
65 | *
66 | * @param packageData
67 | *
68 | */
69 | private void processPackageData(PackageData packageData) {
70 | final MsgHeader header = packageData.getMsgHeader();
71 |
72 | // 1. 终端心跳-消息体为空 ==> 平台通用应答
73 | if (TPMSConsts.msg_id_terminal_heart_beat == header.getMsgId()) {
74 | logger.info(">>>>>[终端心跳],phone={},flowid={}", header.getTerminalPhone(), header.getFlowId());
75 | try {
76 | this.msgProcessService.processTerminalHeartBeatMsg(packageData);
77 | logger.info("<<<<<[终端心跳],phone={},flowid={}", header.getTerminalPhone(), header.getFlowId());
78 | } catch (Exception e) {
79 | logger.error("<<<<<[终端心跳]处理错误,phone={},flowid={},err={}", header.getTerminalPhone(), header.getFlowId(),
80 | e.getMessage());
81 | e.printStackTrace();
82 | }
83 | }
84 |
85 | // 5. 终端鉴权 ==> 平台通用应答
86 | else if (TPMSConsts.msg_id_terminal_authentication == header.getMsgId()) {
87 | logger.info(">>>>>[终端鉴权],phone={},flowid={}", header.getTerminalPhone(), header.getFlowId());
88 | try {
89 | TerminalAuthenticationMsg authenticationMsg = new TerminalAuthenticationMsg(packageData);
90 | this.msgProcessService.processAuthMsg(authenticationMsg);
91 | logger.info("<<<<<[终端鉴权],phone={},flowid={}", header.getTerminalPhone(), header.getFlowId());
92 | } catch (Exception e) {
93 | logger.error("<<<<<[终端鉴权]处理错误,phone={},flowid={},err={}", header.getTerminalPhone(), header.getFlowId(),
94 | e.getMessage());
95 | e.printStackTrace();
96 | }
97 | }
98 | // 6. 终端注册 ==> 终端注册应答
99 | else if (TPMSConsts.msg_id_terminal_register == header.getMsgId()) {
100 | logger.info(">>>>>[终端注册],phone={},flowid={}", header.getTerminalPhone(), header.getFlowId());
101 | try {
102 | TerminalRegisterMsg msg = this.decoder.toTerminalRegisterMsg(packageData);
103 | this.msgProcessService.processRegisterMsg(msg);
104 | logger.info("<<<<<[终端注册],phone={},flowid={}", header.getTerminalPhone(), header.getFlowId());
105 | } catch (Exception e) {
106 | logger.error("<<<<<[终端注册]处理错误,phone={},flowid={},err={}", header.getTerminalPhone(), header.getFlowId(),
107 | e.getMessage());
108 | e.printStackTrace();
109 | }
110 | }
111 | // 7. 终端注销(终端注销数据消息体为空) ==> 平台通用应答
112 | else if (TPMSConsts.msg_id_terminal_log_out == header.getMsgId()) {
113 | logger.info(">>>>>[终端注销],phone={},flowid={}", header.getTerminalPhone(), header.getFlowId());
114 | try {
115 | this.msgProcessService.processTerminalLogoutMsg(packageData);
116 | logger.info("<<<<<[终端注销],phone={},flowid={}", header.getTerminalPhone(), header.getFlowId());
117 | } catch (Exception e) {
118 | logger.error("<<<<<[终端注销]处理错误,phone={},flowid={},err={}", header.getTerminalPhone(), header.getFlowId(),
119 | e.getMessage());
120 | e.printStackTrace();
121 | }
122 | }
123 | // 3. 位置信息汇报 ==> 平台通用应答
124 | else if (TPMSConsts.msg_id_terminal_location_info_upload == header.getMsgId()) {
125 | logger.info(">>>>>[位置信息],phone={},flowid={}", header.getTerminalPhone(), header.getFlowId());
126 | try {
127 | LocationInfoUploadMsg locationInfoUploadMsg = this.decoder.toLocationInfoUploadMsg(packageData);
128 | System.out.println(locationInfoUploadMsg);
129 | this.msgProcessService.processLocationInfoUploadMsg(locationInfoUploadMsg);
130 | logger.info("<<<<<[位置信息],phone={},flowid={}", header.getTerminalPhone(), header.getFlowId());
131 | } catch (Exception e) {
132 | logger.error("<<<<<[位置信息]处理错误,phone={},flowid={},err={}", header.getTerminalPhone(), header.getFlowId(),
133 | e.getMessage());
134 | e.printStackTrace();
135 | }
136 | }
137 | // 其他情况
138 | else {
139 | logger.error(">>>>>>[未知消息类型],phone={},msgId={},package={}", header.getTerminalPhone(), header.getMsgId(),
140 | packageData);
141 | }
142 | }
143 |
144 | @Override
145 | public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) { // (4)
146 | logger.error("发生异常:{}", cause.getMessage());
147 | cause.printStackTrace();
148 | }
149 |
150 | @Override
151 | public void channelActive(ChannelHandlerContext ctx) throws Exception {
152 | Session session = Session.buildSession(ctx.channel());
153 | sessionManager.put(session.getId(), session);
154 | logger.debug("终端连接:{}", session);
155 | }
156 |
157 | @Override
158 | public void channelInactive(ChannelHandlerContext ctx) throws Exception {
159 | final String sessionId = ctx.channel().id().asLongText();
160 | Session session = sessionManager.findBySessionId(sessionId);
161 | this.sessionManager.removeBySessionId(sessionId);
162 | logger.debug("终端断开连接:{}", session);
163 | ctx.channel().close();
164 | // ctx.close();
165 | }
166 |
167 | @Override
168 | public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
169 | if (IdleStateEvent.class.isAssignableFrom(evt.getClass())) {
170 | IdleStateEvent event = (IdleStateEvent) evt;
171 | if (event.state() == IdleState.READER_IDLE) {
172 | Session session = this.sessionManager.removeBySessionId(Session.buildId(ctx.channel()));
173 | logger.error("服务器主动断开连接:{}", session);
174 | ctx.close();
175 | }
176 | }
177 | }
178 |
179 | private void release(Object msg) {
180 | try {
181 | ReferenceCountUtil.release(msg);
182 | } catch (Exception e) {
183 | e.printStackTrace();
184 | }
185 | }
186 | }
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/jt808-tcp-netty/src/main/java/cn/hylexus/jt808/service/codec/MsgDecoder.java:
--------------------------------------------------------------------------------
1 | package cn.hylexus.jt808.service.codec;
2 |
3 | import cn.hylexus.jt808.vo.req.LocationInfoUploadMsg;
4 | import org.slf4j.Logger;
5 | import org.slf4j.LoggerFactory;
6 |
7 | import cn.hylexus.jt808.common.TPMSConsts;
8 | import cn.hylexus.jt808.util.BCD8421Operater;
9 | import cn.hylexus.jt808.util.BitOperator;
10 | import cn.hylexus.jt808.vo.PackageData;
11 | import cn.hylexus.jt808.vo.PackageData.MsgHeader;
12 | import cn.hylexus.jt808.vo.req.TerminalRegisterMsg;
13 | import cn.hylexus.jt808.vo.req.TerminalRegisterMsg.TerminalRegInfo;
14 |
15 | public class MsgDecoder {
16 |
17 | private static final Logger log = LoggerFactory.getLogger(MsgDecoder.class);
18 |
19 | private BitOperator bitOperator;
20 | private BCD8421Operater bcd8421Operater;
21 |
22 | public MsgDecoder() {
23 | this.bitOperator = new BitOperator();
24 | this.bcd8421Operater = new BCD8421Operater();
25 | }
26 |
27 | public PackageData bytes2PackageData(byte[] data) {
28 | PackageData ret = new PackageData();
29 |
30 | // 0. 终端套接字地址信息
31 | // ret.setChannel(msg.getChannel());
32 |
33 | // 1. 16byte 或 12byte 消息头
34 | MsgHeader msgHeader = this.parseMsgHeaderFromBytes(data);
35 | ret.setMsgHeader(msgHeader);
36 |
37 | int msgBodyByteStartIndex = 12;
38 | // 2. 消息体
39 | // 有子包信息,消息体起始字节后移四个字节:消息包总数(word(16))+包序号(word(16))
40 | if (msgHeader.isHasSubPackage()) {
41 | msgBodyByteStartIndex = 16;
42 | }
43 |
44 | byte[] tmp = new byte[msgHeader.getMsgBodyLength()];
45 | System.arraycopy(data, msgBodyByteStartIndex, tmp, 0, tmp.length);
46 | ret.setMsgBodyBytes(tmp);
47 |
48 | // 3. 去掉分隔符之后，最后一位就是校验码
49 | // int checkSumInPkg =
50 | // this.bitOperator.oneByteToInteger(data[data.length - 1]);
51 | int checkSumInPkg = data[data.length - 1];
52 | int calculatedCheckSum = this.bitOperator.getCheckSum4JT808(data, 0, data.length - 1);
53 | ret.setCheckSum(checkSumInPkg);
54 | if (checkSumInPkg != calculatedCheckSum) {
55 | log.warn("检验码不一致,msgid:{},pkg:{},calculated:{}", msgHeader.getMsgId(), checkSumInPkg, calculatedCheckSum);
56 | }
57 | return ret;
58 | }
59 |
60 | private MsgHeader parseMsgHeaderFromBytes(byte[] data) {
61 | MsgHeader msgHeader = new MsgHeader();
62 |
63 | // 1. 消息ID word(16)
64 | // byte[] tmp = new byte[2];
65 | // System.arraycopy(data, 0, tmp, 0, 2);
66 | // msgHeader.setMsgId(this.bitOperator.twoBytesToInteger(tmp));
67 | msgHeader.setMsgId(this.parseIntFromBytes(data, 0, 2));
68 |
69 | // 2. 消息体属性 word(16)=================>
70 | // System.arraycopy(data, 2, tmp, 0, 2);
71 | // int msgBodyProps = this.bitOperator.twoBytesToInteger(tmp);
72 | int msgBodyProps = this.parseIntFromBytes(data, 2, 2);
73 | msgHeader.setMsgBodyPropsField(msgBodyProps);
74 | // [ 0-9 ] 0000,0011,1111,1111(3FF)(消息体长度)
75 | msgHeader.setMsgBodyLength(msgBodyProps & 0x3ff);
76 | // [10-12] 0001,1100,0000,0000(1C00)(加密类型)
77 | msgHeader.setEncryptionType((msgBodyProps & 0x1c00) >> 10);
78 | // [ 13_ ] 0010,0000,0000,0000(2000)(是否有子包)
79 | msgHeader.setHasSubPackage(((msgBodyProps & 0x2000) >> 13) == 1);
80 | // [14-15] 1100,0000,0000,0000(C000)(保留位)
81 | msgHeader.setReservedBit(((msgBodyProps & 0xc000) >> 14) + "");
82 | // 消息体属性 word(16)<=================
83 |
84 | // 3. 终端手机号 bcd[6]
85 | // tmp = new byte[6];
86 | // System.arraycopy(data, 4, tmp, 0, 6);
87 | // msgHeader.setTerminalPhone(this.bcd8421Operater.bcd2String(tmp));
88 | msgHeader.setTerminalPhone(this.parseBcdStringFromBytes(data, 4, 6));
89 |
90 | // 4. 消息流水号 word(16) 按发送顺序从 0 开始循环累加
91 | // tmp = new byte[2];
92 | // System.arraycopy(data, 10, tmp, 0, 2);
93 | // msgHeader.setFlowId(this.bitOperator.twoBytesToInteger(tmp));
94 | msgHeader.setFlowId(this.parseIntFromBytes(data, 10, 2));
95 |
96 | // 5. 消息包封装项
97 | // 有子包信息
98 | if (msgHeader.isHasSubPackage()) {
99 | // 消息包封装项字段
100 | msgHeader.setPackageInfoField(this.parseIntFromBytes(data, 12, 4));
101 | // byte[0-1] 消息包总数(word(16))
102 | // tmp = new byte[2];
103 | // System.arraycopy(data, 12, tmp, 0, 2);
104 | // msgHeader.setTotalSubPackage(this.bitOperator.twoBytesToInteger(tmp));
105 | msgHeader.setTotalSubPackage(this.parseIntFromBytes(data, 12, 2));
106 |
107 | // byte[2-3] 包序号(word(16)) 从 1 开始
108 | // tmp = new byte[2];
109 | // System.arraycopy(data, 14, tmp, 0, 2);
110 | // msgHeader.setSubPackageSeq(this.bitOperator.twoBytesToInteger(tmp));
111 | msgHeader.setSubPackageSeq(this.parseIntFromBytes(data, 14, 2));
112 | }
113 | return msgHeader;
114 | }
115 |
116 | protected String parseStringFromBytes(byte[] data, int startIndex, int lenth) {
117 | return this.parseStringFromBytes(data, startIndex, lenth, null);
118 | }
119 |
120 | private String parseStringFromBytes(byte[] data, int startIndex, int lenth, String defaultVal) {
121 | try {
122 | byte[] tmp = new byte[lenth];
123 | System.arraycopy(data, startIndex, tmp, 0, lenth);
124 | return new String(tmp, TPMSConsts.string_charset);
125 | } catch (Exception e) {
126 | log.error("解析字符串出错:{}", e.getMessage());
127 | e.printStackTrace();
128 | return defaultVal;
129 | }
130 | }
131 |
132 | private String parseBcdStringFromBytes(byte[] data, int startIndex, int lenth) {
133 | return this.parseBcdStringFromBytes(data, startIndex, lenth, null);
134 | }
135 |
136 | private String parseBcdStringFromBytes(byte[] data, int startIndex, int lenth, String defaultVal) {
137 | try {
138 | byte[] tmp = new byte[lenth];
139 | System.arraycopy(data, startIndex, tmp, 0, lenth);
140 | return this.bcd8421Operater.bcd2String(tmp);
141 | } catch (Exception e) {
142 | log.error("解析BCD(8421码)出错:{}", e.getMessage());
143 | e.printStackTrace();
144 | return defaultVal;
145 | }
146 | }
147 |
148 | private int parseIntFromBytes(byte[] data, int startIndex, int length) {
149 | return this.parseIntFromBytes(data, startIndex, length, 0);
150 | }
151 |
152 | private int parseIntFromBytes(byte[] data, int startIndex, int length, int defaultVal) {
153 | try {
154 | // 字节数大于4,从起始索引开始向后处理4个字节,其余超出部分丢弃
155 | final int len = length > 4 ? 4 : length;
156 | byte[] tmp = new byte[len];
157 | System.arraycopy(data, startIndex, tmp, 0, len);
158 | return bitOperator.byteToInteger(tmp);
159 | } catch (Exception e) {
160 | log.error("解析整数出错:{}", e.getMessage());
161 | e.printStackTrace();
162 | return defaultVal;
163 | }
164 | }
165 |
166 | public TerminalRegisterMsg toTerminalRegisterMsg(PackageData packageData) {
167 | TerminalRegisterMsg ret = new TerminalRegisterMsg(packageData);
168 | byte[] data = ret.getMsgBodyBytes();
169 |
170 | TerminalRegInfo body = new TerminalRegInfo();
171 |
172 | // 1. byte[0-1] 省域ID(WORD)
173 | // 设备安装车辆所在的省域，省域ID采用GB/T2260中规定的行政区划代码6位中前两位
174 | // 0保留，由平台取默认值
175 | body.setProvinceId(this.parseIntFromBytes(data, 0, 2));
176 |
177 | // 2. byte[2-3] 设备安装车辆所在的市域或县域,市县域ID采用GB/T2260中规定的行 政区划代码6位中后四位
178 | // 0保留，由平台取默认值
179 | body.setCityId(this.parseIntFromBytes(data, 2, 2));
180 |
181 | // 3. byte[4-8] 制造商ID(BYTE[5]) 5 个字节，终端制造商编码
182 | // byte[] tmp = new byte[5];
183 | body.setManufacturerId(this.parseStringFromBytes(data, 4, 5));
184 |
185 | // 4. byte[9-16] 终端型号(BYTE[8]) 八个字节， 此终端型号 由制造商自行定义 位数不足八位的，补空格。
186 | body.setTerminalType(this.parseStringFromBytes(data, 9, 8));
187 |
188 | // 5. byte[17-23] 终端ID(BYTE[7]) 七个字节， 由大写字母 和数字组成， 此终端 ID由制造 商自行定义
189 | body.setTerminalId(this.parseStringFromBytes(data, 17, 7));
190 |
191 | // 6. byte[24] 车牌颜色(BYTE) 车牌颜 色按照JT/T415-2006 中5.4.12 的规定
192 | body.setLicensePlateColor(this.parseIntFromBytes(data, 24, 1));
193 |
194 | // 7. byte[25-x] 车牌(STRING) 公安交 通管理部门颁 发的机动车号牌
195 | body.setLicensePlate(this.parseStringFromBytes(data, 25, data.length - 25));
196 |
197 | ret.setTerminalRegInfo(body);
198 | return ret;
199 | }
200 |
201 |
202 | public LocationInfoUploadMsg toLocationInfoUploadMsg(PackageData packageData) {
203 | LocationInfoUploadMsg ret = new LocationInfoUploadMsg(packageData);
204 | final byte[] data = ret.getMsgBodyBytes();
205 |
206 | // 1. byte[0-3] 报警标志(DWORD(32))
207 | ret.setWarningFlagField(this.parseIntFromBytes(data, 0, 3));
208 | // 2. byte[4-7] 状态(DWORD(32))
209 | ret.setStatusField(this.parseIntFromBytes(data, 4, 4));
210 | // 3. byte[8-11] 纬度(DWORD(32)) 以度为单位的纬度值乘以10^6，精确到百万分之一度
211 | // String weidu=this.parseBcdStringFromBytes(data, 8, 4);
212 | //float x = Integer.parseInt(weidu,16);
213 | ret.setLatitude(this.parseIntFromBytes(data, 8, 4)/1000000); //parseFloatFromBytes 改动的
214 | // 4. byte[12-15] 经度(DWORD(32)) 以度为单位的经度值乘以10^6，精确到百万分之一度
215 | ret.setLongitude(this.parseIntFromBytes(data, 12, 4)/1000000);
216 | //ret.setLongitude(y);
217 | // 5. byte[16-17] 高程(WORD(16)) 海拔高度，单位为米（ m）
218 | ret.setElevation(this.parseIntFromBytes(data, 16, 2));
219 | // byte[18-19] 速度(WORD) 1/10km/h
220 | ret.setSpeed(this.parseFloatFromBytes(data, 18, 2));
221 | // byte[20-21] 方向(WORD) 0-359，正北为 0，顺时针
222 | ret.setDirection(this.parseIntFromBytes(data, 20, 2));
223 | // byte[22-x] 时间(BCD[6]) YY-MM-DD-hh-mm-ss
224 | // GMT+8 时间，本标准中之后涉及的时间均采用此时区
225 | // ret.setTime(this.par);
226 |
227 | byte[] tmp = new byte[6];
228 | System.arraycopy(data, 22, tmp, 0, 6);
229 | String time = this.parseBcdStringFromBytes(data, 22, 6);
230 | return ret;
231 | }
232 |
233 | private float parseFloatFromBytes(byte[] data, int startIndex, int length) {
234 | return this.parseFloatFromBytes(data, startIndex, length, 0f);
235 | }
236 |
237 | private float parseFloatFromBytes(byte[] data, int startIndex, int length, float defaultVal) {
238 | try {
239 | // 字节数大于4,从起始索引开始向后处理4个字节,其余超出部分丢弃
240 | final int len = length > 4 ? 4 : length;
241 | byte[] tmp = new byte[len];
242 | System.arraycopy(data, startIndex, tmp, 0, len);
243 | //两位的长度
244 | return bitOperator.byte2Float2(tmp);
245 | } catch (Exception e) {
246 | log.error("解析浮点数出错:{}", e.getMessage());
247 | e.printStackTrace();
248 | return defaultVal;
249 | }
250 | }
251 |
252 | }
253 |
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/jt808-tcp-netty/src/main/java/cn/hylexus/jt808/util/BitOperator.java:
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1 | package cn.hylexus.jt808.util;
2 |
3 | import java.util.Arrays;
4 | import java.util.List;
5 |
6 | public class BitOperator {
7 |
8 | /**
9 | * 把一个整形该为byte
10 | *
11 | * @param value
12 | * @return
13 | * @throws Exception
14 | */
15 | public byte integerTo1Byte(int value) {
16 | return (byte) (value & 0xFF);
17 | }
18 |
19 | /**
20 | * 把一个整形该为1位的byte数组
21 | *
22 | * @param value
23 | * @return
24 | * @throws Exception
25 | */
26 | public byte[] integerTo1Bytes(int value) {
27 | byte[] result = new byte[1];
28 | result[0] = (byte) (value & 0xFF);
29 | return result;
30 | }
31 |
32 | /**
33 | * 把一个整形改为2位的byte数组
34 | *
35 | * @param value
36 | * @return
37 | * @throws Exception
38 | */
39 | public byte[] integerTo2Bytes(int value) {
40 | byte[] result = new byte[2];
41 | result[0] = (byte) ((value >>> 8) & 0xFF);
42 | result[1] = (byte) (value & 0xFF);
43 | return result;
44 | }
45 |
46 | /**
47 | * 把一个整形改为3位的byte数组
48 | *
49 | * @param value
50 | * @return
51 | * @throws Exception
52 | */
53 | public byte[] integerTo3Bytes(int value) {
54 | byte[] result = new byte[3];
55 | result[0] = (byte) ((value >>> 16) & 0xFF);
56 | result[1] = (byte) ((value >>> 8) & 0xFF);
57 | result[2] = (byte) (value & 0xFF);
58 | return result;
59 | }
60 |
61 | /**
62 | * 把一个整形改为4位的byte数组
63 | *
64 | * @param value
65 | * @return
66 | * @throws Exception
67 | */
68 | public byte[] integerTo4Bytes(int value){
69 | byte[] result = new byte[4];
70 | result[0] = (byte) ((value >>> 24) & 0xFF);
71 | result[1] = (byte) ((value >>> 16) & 0xFF);
72 | result[2] = (byte) ((value >>> 8) & 0xFF);
73 | result[3] = (byte) (value & 0xFF);
74 | return result;
75 | }
76 |
77 | /**
78 | * 把byte[]转化位整形,通常为指令用
79 | *
80 | * @param value
81 | * @return
82 | * @throws Exception
83 | */
84 | public int byteToInteger(byte[] value) {
85 | int result;
86 | if (value.length == 1) {
87 | result = oneByteToInteger(value[0]);
88 | } else if (value.length == 2) {
89 | result = twoBytesToInteger(value);
90 | } else if (value.length == 3) {
91 | result = threeBytesToInteger(value);
92 | } else if (value.length == 4) {
93 | result = fourBytesToInteger(value);
94 | } else {
95 | result = fourBytesToInteger(value);
96 | }
97 | return result;
98 | }
99 |
100 | /**
101 | * 把一个byte转化位整形,通常为指令用
102 | *
103 | * @param value
104 | * @return
105 | * @throws Exception
106 | */
107 | public int oneByteToInteger(byte value) {
108 | return (int) value & 0xFF;
109 | }
110 |
111 | /**
112 | * 把一个2位的数组转化位整形
113 | *
114 | * @param value
115 | * @return
116 | * @throws Exception
117 | */
118 | public int twoBytesToInteger(byte[] value) {
119 | // if (value.length < 2) {
120 | // throw new Exception("Byte array too short!");
121 | // }
122 | int temp0 = value[0] & 0xFF;
123 | int temp1 = value[1] & 0xFF;
124 | return ((temp0 << 8) + temp1);
125 | }
126 |
127 | /**
128 | * 把一个3位的数组转化位整形
129 | *
130 | * @param value
131 | * @return
132 | * @throws Exception
133 | */
134 | public int threeBytesToInteger(byte[] value) {
135 | int temp0 = value[0] & 0xFF;
136 | int temp1 = value[1] & 0xFF;
137 | int temp2 = value[2] & 0xFF;
138 | return ((temp0 << 16) + (temp1 << 8) + temp2);
139 | }
140 |
141 | /**
142 | * 把一个4位的数组转化位整形,通常为指令用
143 | *
144 | * @param value
145 | * @return
146 | * @throws Exception
147 | */
148 | public int fourBytesToInteger(byte[] value) {
149 | // if (value.length < 4) {
150 | // throw new Exception("Byte array too short!");
151 | // }
152 | int temp0 = value[0] & 0xFF;
153 | int temp1 = value[1] & 0xFF;
154 | int temp2 = value[2] & 0xFF;
155 | int temp3 = value[3] & 0xFF;
156 | return ((temp0 << 24) + (temp1 << 16) + (temp2 << 8) + temp3);
157 | }
158 |
159 | /**
160 | * 把一个4位的数组转化位整形
161 | *
162 | * @param value
163 | * @return
164 | * @throws Exception
165 | */
166 | public long fourBytesToLong(byte[] value) throws Exception {
167 | // if (value.length < 4) {
168 | // throw new Exception("Byte array too short!");
169 | // }
170 | int temp0 = value[0] & 0xFF;
171 | int temp1 = value[1] & 0xFF;
172 | int temp2 = value[2] & 0xFF;
173 | int temp3 = value[3] & 0xFF;
174 | return (((long) temp0 << 24) + (temp1 << 16) + (temp2 << 8) + temp3);
175 | }
176 |
177 | /**
178 | * 把一个数组转化长整形
179 | *
180 | * @param value
181 | * @return
182 | * @throws Exception
183 | */
184 | public long bytes2Long(byte[] value) {
185 | long result = 0;
186 | int len = value.length;
187 | int temp;
188 | for (int i = 0; i < len; i++) {
189 | temp = (len - 1 - i) * 8;
190 | if (temp == 0) {
191 | result += (value[i] & 0x0ff);
192 | } else {
193 | result += (value[i] & 0x0ff) << temp;
194 | }
195 | }
196 | return result;
197 | }
198 |
199 | /**
200 | * 把一个长整形改为byte数组
201 | *
202 | * @param value
203 | * @return
204 | * @throws Exception
205 | */
206 | public byte[] longToBytes(long value){
207 | return longToBytes(value, 8);
208 | }
209 |
210 | /**
211 | * 把一个长整形改为byte数组
212 | *
213 | * @param value
214 | * @return
215 | * @throws Exception
216 | */
217 | public byte[] longToBytes(long value, int len) {
218 | byte[] result = new byte[len];
219 | int temp;
220 | for (int i = 0; i < len; i++) {
221 | temp = (len - 1 - i) * 8;
222 | if (temp == 0) {
223 | result[i] += (value & 0x0ff);
224 | } else {
225 | result[i] += (value >>> temp) & 0x0ff;
226 | }
227 | }
228 | return result;
229 | }
230 |
231 | /**
232 | * 得到一个消息ID
233 | *
234 | * @return
235 | * @throws Exception
236 | */
237 | public byte[] generateTransactionID() throws Exception {
238 | byte[] id = new byte[16];
239 | System.arraycopy(integerTo2Bytes((int) (Math.random() * 65536)), 0, id, 0, 2);
240 | System.arraycopy(integerTo2Bytes((int) (Math.random() * 65536)), 0, id, 2, 2);
241 | System.arraycopy(integerTo2Bytes((int) (Math.random() * 65536)), 0, id, 4, 2);
242 | System.arraycopy(integerTo2Bytes((int) (Math.random() * 65536)), 0, id, 6, 2);
243 | System.arraycopy(integerTo2Bytes((int) (Math.random() * 65536)), 0, id, 8, 2);
244 | System.arraycopy(integerTo2Bytes((int) (Math.random() * 65536)), 0, id, 10, 2);
245 | System.arraycopy(integerTo2Bytes((int) (Math.random() * 65536)), 0, id, 12, 2);
246 | System.arraycopy(integerTo2Bytes((int) (Math.random() * 65536)), 0, id, 14, 2);
247 | return id;
248 | }
249 |
250 | /**
251 | * 把IP拆分位int数组
252 | *
253 | * @param ip
254 | * @return
255 | * @throws Exception
256 | */
257 | public int[] getIntIPValue(String ip) throws Exception {
258 | String[] sip = ip.split("[.]");
259 | // if (sip.length != 4) {
260 | // throw new Exception("error IPAddress");
261 | // }
262 | int[] intIP = { Integer.parseInt(sip[0]), Integer.parseInt(sip[1]), Integer.parseInt(sip[2]),
263 | Integer.parseInt(sip[3]) };
264 | return intIP;
265 | }
266 |
267 | /**
268 | * 把byte类型IP地址转化位字符串
269 | *
270 | * @param address
271 | * @return
272 | * @throws Exception
273 | */
274 | public String getStringIPValue(byte[] address) throws Exception {
275 | int first = this.oneByteToInteger(address[0]);
276 | int second = this.oneByteToInteger(address[1]);
277 | int third = this.oneByteToInteger(address[2]);
278 | int fourth = this.oneByteToInteger(address[3]);
279 |
280 | return first + "." + second + "." + third + "." + fourth;
281 | }
282 |
283 | /**
284 | * 合并字节数组
285 | *
286 | * @param first
287 | * @param rest
288 | * @return
289 | */
290 | public byte[] concatAll(byte[] first, byte[]... rest) {
291 | int totalLength = first.length;
292 | for (byte[] array : rest) {
293 | if (array != null) {
294 | totalLength += array.length;
295 | }
296 | }
297 | byte[] result = Arrays.copyOf(first, totalLength);
298 | int offset = first.length;
299 | for (byte[] array : rest) {
300 | if (array != null) {
301 | System.arraycopy(array, 0, result, offset, array.length);
302 | offset += array.length;
303 | }
304 | }
305 | return result;
306 | }
307 |
308 | /**
309 | * 合并字节数组
310 | *
311 | * @param rest
312 | * @return
313 | */
314 | public byte[] concatAll(List rest) {
315 | int totalLength = 0;
316 | for (byte[] array : rest) {
317 | if (array != null) {
318 | totalLength += array.length;
319 | }
320 | }
321 | byte[] result = new byte[totalLength];
322 | int offset = 0;
323 | for (byte[] array : rest) {
324 | if (array != null) {
325 | System.arraycopy(array, 0, result, offset, array.length);
326 | offset += array.length;
327 | }
328 | }
329 | return result;
330 | }
331 |
332 | public float byte2Float(byte[] bs) {
333 | return Float.intBitsToFloat(
334 | (((bs[3] & 0xFF) << 24) + ((bs[2] & 0xFF) << 16) + ((bs[1] & 0xFF) << 8) + (bs[0] & 0xFF)));
335 | }
336 | public float byte2Float2(byte[] bs) {
337 | return Float.intBitsToFloat(
338 | (((bs[1] & 0xFF) << 8) + (bs[0] & 0xFF)));
339 | }
340 |
341 | public float byteBE2Float(byte[] bytes) {
342 | int l;
343 | l = bytes[0];
344 | l &= 0xff;
345 | l |= ((long) bytes[1] << 8);
346 | l &= 0xffff;
347 | l |= ((long) bytes[2] << 16);
348 | l &= 0xffffff;
349 | l |= ((long) bytes[3] << 24);
350 | return Float.intBitsToFloat(l);
351 | }
352 |
353 | public int getCheckSum4JT808(byte[] bs, int start, int end) {
354 | if (start < 0 || end > bs.length)
355 | throw new ArrayIndexOutOfBoundsException("getCheckSum4JT808 error : index out of bounds(start=" + start
356 | + ",end=" + end + ",bytes length=" + bs.length + ")");
357 | int cs = 0;
358 | for (int i = start; i < end; i++) {
359 | cs ^= bs[i];
360 | }
361 | return cs;
362 | }
363 |
364 | public int getBitRange(int number, int start, int end) {
365 | if (start < 0)
366 | throw new IndexOutOfBoundsException("min index is 0,but start = " + start);
367 | if (end >= Integer.SIZE)
368 | throw new IndexOutOfBoundsException("max index is " + (Integer.SIZE - 1) + ",but end = " + end);
369 |
370 | return (number << Integer.SIZE - (end + 1)) >>> Integer.SIZE - (end - start + 1);
371 | }
372 |
373 | public int getBitAt(int number, int index) {
374 | if (index < 0)
375 | throw new IndexOutOfBoundsException("min index is 0,but " + index);
376 | if (index >= Integer.SIZE)
377 | throw new IndexOutOfBoundsException("max index is " + (Integer.SIZE - 1) + ",but " + index);
378 |
379 | return ((1 << index) & number) >> index;
380 | }
381 |
382 | public int getBitAtS(int number, int index) {
383 | String s = Integer.toBinaryString(number);
384 | return Integer.parseInt(s.charAt(index) + "");
385 | }
386 |
387 | @Deprecated
388 | public int getBitRangeS(int number, int start, int end) {
389 | String s = Integer.toBinaryString(number);
390 | StringBuilder sb = new StringBuilder(s);
391 | while (sb.length() < Integer.SIZE) {
392 | sb.insert(0, "0");
393 | }
394 | String tmp = sb.reverse().substring(start, end + 1);
395 | sb = new StringBuilder(tmp);
396 | return Integer.parseInt(sb.reverse().toString(), 2);
397 | }
398 | }
399 |
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