├── pom.xml
├── tcp_client
    ├── .gitignore
    ├── pom.xml
    └── src
    │   └── main
    │       ├── java
    │           └── com
    │           │   └── tcp
    │           │       ├── TcpClientApplication.java
    │           │       ├── controller
    │           │           └── HandController.java
    │           │       └── server
    │           │           ├── TcpClient.java
    │           │           └── TcpClientHandler.java
    │       └── resources
    │           └── application.yml
└── tcp_server
    ├── .gitignore
    ├── pom.xml
    └── src
        └── main
            ├── java
                └── com
                │   └── tcp
                │       ├── TcpServerApplication.java
                │       └── server
                │           ├── TcpServer.java
                │           └── TcpServerHandler.java
            └── resources
                └── application.yml


/pom.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 3 |          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 4 |     <modelVersion>4.0.0</modelVersion>
 5 |     <parent>
 6 |         <groupId>org.springframework.boot</groupId>
 7 |         <artifactId>spring-boot-starter-parent</artifactId>
 8 |         <version>2.1.5.RELEASE</version>
 9 |         <relativePath/> <!-- lookup parent from repository -->
10 |     </parent>
11 |     <groupId>com.tcp</groupId>
12 |     <artifactId>tcp_project</artifactId>
13 |     <version>0.0.1-SNAPSHOT</version>
14 |     <name>tcp_project</name>
15 |     <description>Demo project for Spring Boot</description>
16 |     <packaging>pom</packaging>
17 | 
18 |     <modules>
19 |         <module>tcp_server</module>
20 |         <module>tcp_client</module>
21 |     </modules>
22 | 
23 |     <properties>
24 |         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
25 |         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
26 |         <java.version>1.8</java.version>
27 |     </properties>
28 | 
29 |     <dependencies>
30 |         <dependency>
31 |             <groupId>org.springframework.boot</groupId>
32 |             <artifactId>spring-boot-starter</artifactId>
33 |         </dependency>
34 | 
35 |         <dependency>
36 |             <groupId>org.springframework.boot</groupId>
37 |             <artifactId>spring-boot-starter-web</artifactId>
38 |         </dependency>
39 | 
40 |         <dependency>
41 |             <groupId>io.netty</groupId>
42 |             <artifactId>netty-all</artifactId>
43 |             <version>4.1.4.Final</version>
44 |         </dependency>
45 | 
46 |         <dependency>
47 |             <groupId>org.springframework.boot</groupId>
48 |             <artifactId>spring-boot-starter-amqp</artifactId>
49 |         </dependency>
50 | 
51 | 
52 |     </dependencies>
53 | 
54 |     <build>
55 |         <plugins>
56 |             <plugin>
57 |                 <groupId>org.springframework.boot</groupId>
58 |                 <artifactId>spring-boot-maven-plugin</artifactId>
59 |             </plugin>
60 |         </plugins>
61 |     </build>
62 | 
63 | </project>
64 | 


--------------------------------------------------------------------------------
/tcp_client/.gitignore:
--------------------------------------------------------------------------------
 1 | HELP.md
 2 | /target/
 3 | !.mvn/wrapper/maven-wrapper.jar
 4 | 
 5 | ### STS ###
 6 | .apt_generated
 7 | .classpath
 8 | .factorypath
 9 | .project
10 | .settings
11 | .springBeans
12 | .sts4-cache
13 | 
14 | ### IntelliJ IDEA ###
15 | .idea
16 | *.iws
17 | *.iml
18 | *.ipr
19 | 
20 | ### NetBeans ###
21 | /nbproject/private/
22 | /nbbuild/
23 | /dist/
24 | /nbdist/
25 | /.nb-gradle/
26 | /build/
27 | 
28 | ### VS Code ###
29 | .vscode/
30 | 


--------------------------------------------------------------------------------
/tcp_client/pom.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 3 |          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 4 |     <modelVersion>4.0.0</modelVersion>
 5 |     <parent>
 6 |         <groupId>com.tcp</groupId>
 7 |         <artifactId>tcp_project</artifactId>
 8 |         <version>0.0.1-SNAPSHOT</version>
 9 |         <relativePath/> <!-- lookup parent from repository -->
10 |     </parent>
11 |     <groupId>com.tcp</groupId>
12 |     <artifactId>tcp_client</artifactId>
13 |     <version>0.0.1-SNAPSHOT</version>
14 |     <name>tcp_client</name>
15 |     <description>Demo project for Spring Boot</description>
16 |     <packaging>jar</packaging>
17 | 
18 |     <dependencies>
19 |     </dependencies>
20 | 
21 |     <build>
22 |         <plugins>
23 |             <plugin>
24 |                 <groupId>org.springframework.boot</groupId>
25 |                 <artifactId>spring-boot-maven-plugin</artifactId>
26 |             </plugin>
27 |         </plugins>
28 |     </build>
29 | 
30 | </project>
31 | 


--------------------------------------------------------------------------------
/tcp_client/src/main/java/com/tcp/TcpClientApplication.java:
--------------------------------------------------------------------------------
 1 | package com.tcp;
 2 | 
 3 | import org.springframework.boot.SpringApplication;
 4 | import org.springframework.boot.autoconfigure.SpringBootApplication;
 5 | 
 6 | @SpringBootApplication
 7 | public class TcpClientApplication {
 8 | 
 9 |     public static void main(String[] args) {
10 |         SpringApplication.run(TcpClientApplication.class, args);
11 |     }
12 | 
13 | }
14 | 


--------------------------------------------------------------------------------
/tcp_client/src/main/java/com/tcp/controller/HandController.java:
--------------------------------------------------------------------------------
 1 | package com.tcp.controller;
 2 | 
 3 | import com.tcp.server.TcpClient;
 4 | import org.springframework.beans.factory.annotation.Autowired;
 5 | import org.springframework.web.bind.annotation.GetMapping;
 6 | import org.springframework.web.bind.annotation.RestController;
 7 | 
 8 | @RestController
 9 | public class HandController {
10 | 
11 |     @Autowired
12 |     private TcpClient tcpClient;
13 | 
14 |     @GetMapping("/sent")
15 |     public String sentMsg(){
16 |         try {
17 |             tcpClient.sendMsg("1111");
18 |         } catch (Exception e) {
19 |             return e.toString();
20 |         }
21 |         return "1111";
22 |     }
23 | }
24 | 


--------------------------------------------------------------------------------
/tcp_client/src/main/java/com/tcp/server/TcpClient.java:
--------------------------------------------------------------------------------
 1 | package com.tcp.server;
 2 | 
 3 | import io.netty.bootstrap.Bootstrap;
 4 | import io.netty.channel.*;
 5 | import io.netty.channel.nio.NioEventLoopGroup;
 6 | import io.netty.channel.socket.nio.NioSocketChannel;
 7 | import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 8 | import io.netty.handler.codec.LengthFieldPrepender;
 9 | import io.netty.handler.codec.string.StringDecoder;
10 | import io.netty.handler.codec.string.StringEncoder;
11 | import io.netty.util.CharsetUtil;
12 | import org.springframework.stereotype.Component;
13 | 
14 | @Component
15 | public class TcpClient {
16 | 
17 | 	public static String HOST = "127.0.0.1";
18 | 	public static int PORT = 9999;
19 | 
20 | 	public static Bootstrap bootstrap = getBootstrap();
21 | 	public static Channel channel = getChannel(HOST, PORT);
22 | 
23 | 	/**
24 | 	 * 初始化Bootstrap
25 | 	 */
26 | 	public static final Bootstrap getBootstrap() {
27 | 		EventLoopGroup group = new NioEventLoopGroup();
28 | 		Bootstrap b = new Bootstrap();
29 | 		b.group(group).channel(NioSocketChannel.class);
30 | 		b.handler(new ChannelInitializer<Channel>() {
31 | 			@Override
32 | 			protected void initChannel(Channel ch) throws Exception {
33 | 				ChannelPipeline pipeline = ch.pipeline();
34 | 				pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
35 | 				pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
36 | 				pipeline.addLast("decoder", new StringDecoder(CharsetUtil.UTF_8));
37 | 				pipeline.addLast("encoder", new StringEncoder(CharsetUtil.UTF_8));
38 | 				pipeline.addLast("handler", new TcpClientHandler());
39 | 			}
40 | 		});
41 | 
42 | 		b.option(ChannelOption.SO_KEEPALIVE, true);
43 | 		return b;
44 | 	}
45 | 
46 | 	public static final Channel getChannel(String host, int port) {
47 | 		Channel channel = null;
48 | 		try {
49 | 			channel = bootstrap.connect(host, port).sync().channel();
50 | 			System.out.println("TcpClient启动成功");
51 | 		} catch (Exception e) {
52 | 			System.out.println("连接Server失败" + e);
53 | 			return null;
54 | 		}
55 | 		return channel;
56 | 	}
57 | 
58 | 	public void sendMsg(String msg) throws Exception {
59 | 		if (channel != null) {
60 | 			channel.writeAndFlush(msg).sync();
61 | 		} else {
62 | 			System.out.println("消息发送失败,连接尚未建立!");
63 | 		}
64 | 	}
65 | 
66 | 	/*public static void main(String[] args) throws Exception {
67 | 		try {
68 | 			long t0 = System.nanoTime();
69 | 			for (int i = 0; i < 100; i++) {
70 | 				TcpClient.sendMsg(i + "你好1");
71 | 			}
72 | 			long t1 = System.nanoTime();
73 | 			System.out.println("time used:" + (t1 - t0));
74 | 		} catch (Exception e) {
75 | 			System.out.println("main err:" + e);
76 | 		}
77 | 	}*/
78 | }
79 | 


--------------------------------------------------------------------------------
/tcp_client/src/main/java/com/tcp/server/TcpClientHandler.java:
--------------------------------------------------------------------------------
 1 | package com.tcp.server;
 2 | 
 3 | import io.netty.channel.ChannelHandlerContext;
 4 | import io.netty.channel.SimpleChannelInboundHandler;
 5 | 
 6 | public class TcpClientHandler extends SimpleChannelInboundHandler<Object> {
 7 | 
 8 | 	@Override
 9 | 	protected void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {
10 | 		System.out.println("client接收到服务器返回的消息:" + msg);
11 | 	}
12 | 
13 | }
14 | 


--------------------------------------------------------------------------------
/tcp_client/src/main/resources/application.yml:
--------------------------------------------------------------------------------
1 | server:
2 |   port: 9091
3 | 
4 | spring:
5 |   rabbitmq:
6 |     host: 127.0.0.1
7 |     port: 5672
8 |     username: finance
9 |     password: finance


--------------------------------------------------------------------------------
/tcp_server/.gitignore:
--------------------------------------------------------------------------------
 1 | HELP.md
 2 | /target/
 3 | !.mvn/wrapper/maven-wrapper.jar
 4 | 
 5 | ### STS ###
 6 | .apt_generated
 7 | .classpath
 8 | .factorypath
 9 | .project
10 | .settings
11 | .springBeans
12 | .sts4-cache
13 | 
14 | ### IntelliJ IDEA ###
15 | .idea
16 | *.iws
17 | *.iml
18 | *.ipr
19 | 
20 | ### NetBeans ###
21 | /nbproject/private/
22 | /nbbuild/
23 | /dist/
24 | /nbdist/
25 | /.nb-gradle/
26 | /build/
27 | 
28 | ### VS Code ###
29 | .vscode/
30 | 


--------------------------------------------------------------------------------
/tcp_server/pom.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 3 |          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 4 |     <modelVersion>4.0.0</modelVersion>
 5 |     <parent>
 6 |         <groupId>com.tcp</groupId>
 7 |         <artifactId>tcp_project</artifactId>
 8 |         <version>0.0.1-SNAPSHOT</version>
 9 |         <relativePath/>
10 |     </parent>
11 |     <groupId>com.tcp</groupId>
12 |     <artifactId>tcp_server</artifactId>
13 |     <version>0.0.1-SNAPSHOT</version>
14 |     <name>tcp_server</name>
15 |     <description>Demo project for Spring Boot</description>
16 |     <packaging>jar</packaging>
17 | 
18 |     <dependencies>
19 | 
20 |     </dependencies>
21 | 
22 |     <build>
23 |         <plugins>
24 |             <plugin>
25 |                 <groupId>org.springframework.boot</groupId>
26 |                 <artifactId>spring-boot-maven-plugin</artifactId>
27 |             </plugin>
28 |         </plugins>
29 |     </build>
30 | 
31 | </project>
32 | 


--------------------------------------------------------------------------------
/tcp_server/src/main/java/com/tcp/TcpServerApplication.java:
--------------------------------------------------------------------------------
 1 | package com.tcp;
 2 | 
 3 | import com.tcp.server.TcpServer;
 4 | import org.springframework.boot.SpringApplication;
 5 | import org.springframework.boot.autoconfigure.SpringBootApplication;
 6 | 
 7 | //@SpringBootApplication
 8 | public class TcpServerApplication {
 9 | 
10 |     public static void main(String[] args) {
11 | //        SpringApplication.run(TcpServerApplication.class, args);
12 |         TcpServer.run();
13 |     }
14 | 
15 | }
16 | 


--------------------------------------------------------------------------------
/tcp_server/src/main/java/com/tcp/server/TcpServer.java:
--------------------------------------------------------------------------------
 1 | package com.tcp.server;
 2 | 
 3 | import io.netty.bootstrap.ServerBootstrap;
 4 | import io.netty.channel.ChannelInitializer;
 5 | import io.netty.channel.ChannelPipeline;
 6 | import io.netty.channel.EventLoopGroup;
 7 | import io.netty.channel.nio.NioEventLoopGroup;
 8 | import io.netty.channel.socket.SocketChannel;
 9 | import io.netty.channel.socket.nio.NioServerSocketChannel;
10 | import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
11 | import io.netty.handler.codec.LengthFieldPrepender;
12 | import io.netty.handler.codec.string.StringDecoder;
13 | import io.netty.handler.codec.string.StringEncoder;
14 | import io.netty.util.CharsetUtil;
15 | 
16 | public class TcpServer {
17 | 
18 | 	private static final String IP = "127.0.0.1";
19 | 	private static final int PORT = 9999;
20 | 	/** 用于分配处理业务线程的线程组个数 */
21 | 	protected static final int BIZGROUPSIZE = Runtime.getRuntime().availableProcessors() * 2; // 默认
22 | 	/** 业务出现线程大小 */
23 | 	protected static final int BIZTHREADSIZE = 4;
24 | 	/*
25 | 	 * NioEventLoopGroup实际上就是个线程池,
26 | 	 * NioEventLoopGroup在后台启动了n个NioEventLoop来处理Channel事件,
27 | 	 * 每一个NioEventLoop负责处理m个Channel,
28 | 	 * NioEventLoopGroup从NioEventLoop数组里挨个取出NioEventLoop来处理Channel
29 | 	 */
30 | 	private static final EventLoopGroup bossGroup = new NioEventLoopGroup(BIZGROUPSIZE);
31 | 	private static final EventLoopGroup workerGroup = new NioEventLoopGroup(BIZTHREADSIZE);
32 | 
33 | 	public static void run(){
34 | 		try {
35 | 			ServerBootstrap b = new ServerBootstrap();
36 | 			b.group(bossGroup, workerGroup);
37 | 			b.channel(NioServerSocketChannel.class);
38 | 			b.childHandler(new ChannelInitializer<SocketChannel>() {
39 | 				@Override
40 | 				public void initChannel(SocketChannel ch) throws Exception {
41 | 						ChannelPipeline pipeline = ch.pipeline();
42 | 					pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
43 | 					pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
44 | 					pipeline.addLast("decoder", new StringDecoder(CharsetUtil.UTF_8));
45 | 					pipeline.addLast("encoder", new StringEncoder(CharsetUtil.UTF_8));
46 | 					pipeline.addLast(new TcpServerHandler());
47 | 				}
48 | 			});
49 | 
50 | 			b.bind(IP, PORT).sync();
51 | 			System.out.println("TCP服务器已启动");
52 | 		} catch (InterruptedException e) {
53 | 			System.out.println(e);
54 | 		}
55 | 	}
56 | 
57 | 	protected static void shutdown() {
58 | 		workerGroup.shutdownGracefully();
59 | 		bossGroup.shutdownGracefully();
60 | 	}
61 | 
62 | 	/*public static void main(String[] args) throws Exception {
63 | 		System.out.println("启动TCP服务器...");
64 | 		TcpServer.run();
65 | 		// TcpServer.shutdown();
66 | 	}*/
67 | 
68 | }
69 | 


--------------------------------------------------------------------------------
/tcp_server/src/main/java/com/tcp/server/TcpServerHandler.java:
--------------------------------------------------------------------------------
 1 | package com.tcp.server;
 2 | 
 3 | import io.netty.channel.ChannelHandlerContext;
 4 | import io.netty.channel.SimpleChannelInboundHandler;
 5 | 
 6 | public class TcpServerHandler extends SimpleChannelInboundHandler<Object> {
 7 | 
 8 | 	@Override
 9 | 	protected void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {
10 | 		System.out.println("SERVER接收到消息:" + msg);
11 | 		ctx.channel().writeAndFlush("server accepted msg:" + msg);
12 | 	}
13 | 
14 | 	@Override
15 | 	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
16 | 		System.out.println("exceptionCaught!" + cause);
17 | 		ctx.close();
18 | 	}
19 | }
20 | 


--------------------------------------------------------------------------------
/tcp_server/src/main/resources/application.yml:
--------------------------------------------------------------------------------
1 | server:
2 |   port: 9090


--------------------------------------------------------------------------------