├── springboot-seckill ├── src │ └── main │ │ ├── resources │ │ └── application.yml │ │ └── java │ │ └── com │ │ └── sock │ │ └── seckillexample │ │ ├── SeckillApplication.java │ │ ├── config │ │ └── RedisConfig.java │ │ └── controller │ │ └── SeckillController.java └── pom.xml ├── springboot-alipay ├── src │ └── main │ │ ├── java │ │ └── com │ │ │ └── sock │ │ │ ├── utils │ │ │ └── ResultCode.java │ │ │ └── alipayexample │ │ │ ├── service │ │ │ ├── AliPayService.java │ │ │ └── imp │ │ │ │ └── AliPayServiceImp.java │ │ │ ├── AlipayApplicationMain.java │ │ │ ├── entity │ │ │ └── PayParams.java │ │ │ ├── controller │ │ │ └── AlipayController.java │ │ │ └── config │ │ │ └── AliPayConfig.java │ │ └── resources │ │ └── application.yml └── pom.xml ├── README.md └── pom.xml /springboot-seckill/src/main/resources/application.yml: -------------------------------------------------------------------------------- 1 | spring: 2 | redis: 3 | port: 6379 4 | host: 192.168.11.111 -------------------------------------------------------------------------------- /springboot-alipay/src/main/java/com/sock/utils/ResultCode.java: -------------------------------------------------------------------------------- 1 | package com.sock.utils; 2 | 3 | public interface ResultCode { 4 | 5 | public static Integer SUCCESS = 20000; //成功 6 | 7 | public static Integer ERROR = 20001; //失败 8 | } 9 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # springboot-example 2 | 3 | 个人对代码的一些理解以及一些常用的技术案例，常用解决方案等。 4 | 5 | 详细点击跳转[Wiki](https://github.com/zhang-hao-Github/springboot-example/wiki) 6 | 7 | 8 | ### 有问题反馈 9 | 在查阅时有任何问题，欢迎反馈给我，可以用以下联系方式跟我交流 10 | 11 | * 邮件(17775151940@163.com) 12 | * 微信:Sock0745 13 | * Q Q:656771561 14 | 15 | 16 | 欢迎指点提出建议指出不足，共同进步！ 17 | 18 | 希望你喜欢我的作品，同时也能支持一下 点个Star。 19 | -------------------------------------------------------------------------------- /springboot-alipay/src/main/java/com/sock/alipayexample/service/AliPayService.java: -------------------------------------------------------------------------------- 1 | package com.sock.alipayexample.service; 2 | 3 | import com.sock.alipayexample.entity.PayParams; 4 | 5 | /** 6 | * @program: springboot-example 7 | * @author: @ZhangHao 8 | * @create: 2020-10-09 23:02 9 | **/ 10 | public interface AliPayService { 11 | 12 | 13 | String tradePrecreate(PayParams payParams); 14 | 15 | String tradeQuery(String out_trade_no); 16 | } 17 | -------------------------------------------------------------------------------- /springboot-seckill/src/main/java/com/sock/seckillexample/SeckillApplication.java: -------------------------------------------------------------------------------- 1 | package com.sock.seckillexample; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | 6 | /** 7 | * @program: springboot-example 8 | * @author: @ZhangHao 9 | * @create: 2020-10-11 20:16 10 | **/ 11 | @SpringBootApplication 12 | public class SeckillApplication { 13 | public static void main(String[] args) { 14 | SpringApplication.run(SeckillApplication.class, args); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /springboot-alipay/src/main/java/com/sock/alipayexample/AlipayApplicationMain.java: -------------------------------------------------------------------------------- 1 | package com.sock.alipayexample; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | 6 | /** 7 | * @program: springboot-example 8 | * @author: @ZhangHao 9 | * @create: 2020-10-09 22:06 10 | **/ 11 | @SpringBootApplication 12 | public class AlipayApplicationMain { 13 | 14 | public static void main(String[] args) { 15 | SpringApplication.run(AlipayApplicationMain.class, args); 16 | } 17 | 18 | } 19 | -------------------------------------------------------------------------------- /springboot-alipay/src/main/resources/application.yml: -------------------------------------------------------------------------------- 1 | alipay: 2 | APPID: 3 | ALIPAY_PUBLIC_KEY: TG1tiHq7t57TSTazjt6Cuqa2huam4D9d4Vm8BHBVwblGe4j3FvUcDd/5i16gISnOiBtTG1tiHq7t57TSTazjt6Cuqa2huam4D9d4Vm8BHBVwblGe4j3FvUcDdtTG1tiHq7t57TSTazjt6Cuqa2huam4D9d4Vm8BHBVwblGe4j3FvUcDdtTG1tiHq7t57TSTazjt6Cuqa2huam4D9d4Vm8BHBVwblGe4j3FvUcDd 4 | APP_PRIVATE_KEY: tTG1tiHq7t57TSTazjt6Cuqa2huam4D9d4Vm8BHBVwblGe4j3FvUcDd/5i16gISnOiB1LbLrpAQ8QF7vZ9hHf4bvxje27aDHDjSedkxvUzR3G9Syywo1oo2C0AZKGVtQchZQK28E+fx/MsVQhjeN1dYC5FRCPAoGAN+SL8mwzHcVEsnNeIL5+03Zjqe3xkOwwXo6yVlRP4sU89USSHcVvd2akkm6eDngRLnfqcdZGwOEL/ITuXlGjg5TxjvEUf2pfa4Bk+nGHYNncWkzSFApvv0Zf+vGm84fTHtWXYjqV1qE4RgCjAKS9dUtVvoSF/Pa/tVK0ARizJgQ= 5 | -------------------------------------------------------------------------------- /springboot-alipay/src/main/java/com/sock/alipayexample/entity/PayParams.java: -------------------------------------------------------------------------------- 1 | package com.sock.alipayexample.entity; 2 | 3 | import lombok.*; 4 | import lombok.extern.slf4j.Slf4j; 5 | 6 | /** 7 | * @program: yfaka-cloud 8 | * @author: @ZhangHao 9 | * @create: 2020-09-30 22:32 10 | **/ 11 | public class PayParams { 12 | 13 | 14 | private String out_trade_no; //订单号 15 | 16 | private String subject; //标题 17 | 18 | private String total_amount;//订单金额 19 | 20 | public String getOut_trade_no() { 21 | return out_trade_no; 22 | } 23 | 24 | public void setOut_trade_no(String out_trade_no) { 25 | this.out_trade_no = out_trade_no; 26 | } 27 | 28 | public String getSubject() { 29 | return subject; 30 | } 31 | 32 | public void setSubject(String subject) { 33 | this.subject = subject; 34 | } 35 | 36 | public String getTotal_amount() { 37 | return total_amount; 38 | } 39 | 40 | public void setTotal_amount(String total_amount) { 41 | this.total_amount = total_amount; 42 | } 43 | 44 | } 45 | -------------------------------------------------------------------------------- /springboot-seckill/pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | dependency-parent 7 | org.example 8 | 1.0-SNAPSHOT 9 | 10 | 4.0.0 11 | 12 | springboot-seckill 13 | 14 | 15 | org.springframework.boot 16 | spring-boot-starter 17 | 18 | 19 | org.springframework.boot 20 | spring-boot-starter-data-redis 21 | 22 | 23 | org.springframework.boot 24 | spring-boot-starter-web 25 | 26 | 27 | org.redisson 28 | redisson 29 | 3.11.1 30 | 31 | 32 | 33 | -------------------------------------------------------------------------------- /springboot-alipay/src/main/java/com/sock/alipayexample/controller/AlipayController.java: -------------------------------------------------------------------------------- 1 | package com.sock.alipayexample.controller; 2 | 3 | import com.sock.alipayexample.config.AliPayConfig; 4 | import com.sock.alipayexample.entity.PayParams; 5 | import com.sock.alipayexample.service.AliPayService; 6 | import org.springframework.beans.factory.annotation.Autowired; 7 | import org.springframework.web.bind.annotation.PostMapping; 8 | import org.springframework.web.bind.annotation.RequestBody; 9 | import org.springframework.web.bind.annotation.RequestParam; 10 | import org.springframework.web.bind.annotation.RestController; 11 | 12 | /** 13 | * @program: springboot-example 14 | * @author: @ZhangHao 15 | * @create: 2020-10-09 22:18 16 | **/ 17 | @RestController 18 | public class AlipayController { 19 | 20 | @Autowired 21 | private AliPayService aliPayService; 22 | 23 | /** 24 | * @description: 25 | * @author: zhanghao 26 | * @date: 2020/10/9 22:29 27 | * @param: PayParams 生成交易二维码的参数 28 | */ 29 | @PostMapping("/tradePay") 30 | public String tradePay(@RequestBody PayParams payParams) { 31 | 32 | String qrCode = aliPayService.tradePrecreate(payParams); 33 | return qrCode; 34 | } 35 | /** 36 | * @description: 37 | * @author: zhanghao 38 | * @date: 2020/10/9 22:29 39 | * @param: PayParams 获取交易信息 轮询方式 （建议使用异步方式） 40 | */ 41 | @PostMapping("/tradeQuery") 42 | public String tradeQuery(@RequestParam("tradeNo") String tradeNo) { 43 | 44 | String result = aliPayService.tradeQuery(tradeNo); 45 | 46 | return result; 47 | } 48 | 49 | } 50 | -------------------------------------------------------------------------------- /springboot-alipay/pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | dependency-parent 7 | org.example 8 | 1.0-SNAPSHOT 9 | 10 | 4.0.0 11 | 12 | springboot-alipay 13 | 14 | 15 | com.alipay.sdk 16 | alipay-sdk-java 17 | 18 | 19 | org.springframework.boot 20 | spring-boot-starter 21 | 22 | 23 | org.springframework.boot 24 | spring-boot-starter-web 25 | 26 | 27 | org.projectlombok 28 | lombok 29 | 30 | 31 | org.springframework.boot 32 | spring-boot-configuration-processor 33 | true 34 | 35 | 36 | cn.hutool 37 | hutool-all 38 | 39 | 40 | 41 | -------------------------------------------------------------------------------- /springboot-alipay/src/main/java/com/sock/alipayexample/config/AliPayConfig.java: -------------------------------------------------------------------------------- 1 | package com.sock.alipayexample.config; 2 | 3 | import com.alipay.api.AlipayClient; 4 | import com.alipay.api.DefaultAlipayClient; 5 | import org.springframework.beans.factory.annotation.Value; 6 | import org.springframework.boot.context.properties.ConfigurationProperties; 7 | import org.springframework.context.annotation.Bean; 8 | import org.springframework.context.annotation.Configuration; 9 | 10 | /** 11 | * @program: springboot-example 12 | * @author: @ZhangHao 13 | * @create: 2020-10-09 22:32 14 | **/ 15 | @Configuration 16 | @ConfigurationProperties(prefix = "alipay") 17 | public class AliPayConfig { 18 | //支付宝网关 19 | private static final String ALIPAYGATEWAY = "https://openapi.alipay.com/gateway.do"; 20 | //签名算法 21 | private static final String SIGN_TYPE = "RSA2"; 22 | private static final String CHARSET = "UTF-8"; 23 | public static final String TIMEOUT_EXPRESS = "60m"; 24 | //公钥 对应接口加签中的支付宝公钥（非我们填入的） 25 | public static String ALIPAY_PUBLIC_KEY; 26 | //appd 27 | public static String APPID; 28 | //私钥（自己生成的那个） 29 | public static String APP_PRIVATE_KEY; 30 | 31 | public void setALIPAY_PUBLIC_KEY(String alipay_public_key) { 32 | this.ALIPAY_PUBLIC_KEY = alipay_public_key; 33 | } 34 | 35 | public void setAPPID(String APPID) { 36 | AliPayConfig.APPID = APPID; 37 | } 38 | 39 | public void setAppPrivateKey(String appPrivateKey) { 40 | APP_PRIVATE_KEY = appPrivateKey; 41 | } 42 | 43 | @Bean 44 | public AlipayClient alipayClient() { 45 | 46 | AlipayClient alipayClient = new DefaultAlipayClient(ALIPAYGATEWAY, AliPayConfig.APPID, 47 | AliPayConfig.APP_PRIVATE_KEY, "json", CHARSET, AliPayConfig.ALIPAY_PUBLIC_KEY, SIGN_TYPE); 48 | return alipayClient; 49 | } 50 | } 51 | -------------------------------------------------------------------------------- /springboot-seckill/src/main/java/com/sock/seckillexample/config/RedisConfig.java: -------------------------------------------------------------------------------- 1 | package com.sock.seckillexample.config; 2 | 3 | import com.fasterxml.jackson.annotation.JsonAutoDetect; 4 | import com.fasterxml.jackson.annotation.PropertyAccessor; 5 | import com.fasterxml.jackson.databind.ObjectMapper; 6 | import org.redisson.Redisson; 7 | import org.redisson.api.RedissonClient; 8 | import org.springframework.context.annotation.Bean; 9 | import org.springframework.context.annotation.Configuration; 10 | import org.springframework.data.redis.connection.RedisConnectionFactory; 11 | import org.springframework.data.redis.core.RedisTemplate; 12 | import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer; 13 | import org.springframework.data.redis.serializer.RedisSerializer; 14 | import org.springframework.data.redis.serializer.StringRedisSerializer; 15 | 16 | /** 17 | * @program: springboot-example 18 | * @author: @ZhangHao 19 | * @create: 2020-10-11 20:55 20 | **/ 21 | @Configuration 22 | public class RedisConfig { 23 | @Bean 24 | public RedisTemplate redistpls(RedisConnectionFactory factory) { 25 | 26 | RedisTemplate tpls = new RedisTemplate<>(); 27 | 28 | RedisSerializer redisSerializer = new StringRedisSerializer(); 29 | 30 | Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class); 31 | ObjectMapper om = new ObjectMapper(); 32 | om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY); 33 | om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL); 34 | jackson2JsonRedisSerializer.setObjectMapper(om); 35 | 36 | tpls.setConnectionFactory(factory); 37 | //key序列化方式 38 | tpls.setKeySerializer(redisSerializer); 39 | //value序列化 40 | tpls.setValueSerializer(jackson2JsonRedisSerializer); 41 | //value hashmap序列化 42 | tpls.setHashValueSerializer(jackson2JsonRedisSerializer); 43 | tpls.setEnableTransactionSupport(true); 44 | return tpls; 45 | } 46 | 47 | } 48 | -------------------------------------------------------------------------------- /springboot-alipay/src/main/java/com/sock/alipayexample/service/imp/AliPayServiceImp.java: -------------------------------------------------------------------------------- 1 | package com.sock.alipayexample.service.imp; 2 | 3 | import cn.hutool.json.JSONObject; 4 | import cn.hutool.json.JSONUtil; 5 | import com.alipay.api.AlipayApiException; 6 | import com.alipay.api.AlipayClient; 7 | import com.alipay.api.AlipayResponse; 8 | import com.alipay.api.DefaultAlipayClient; 9 | import com.alipay.api.request.AlipayTradePrecreateRequest; 10 | import com.alipay.api.request.AlipayTradeQueryRequest; 11 | import com.alipay.api.response.AlipayTradePrecreateResponse; 12 | import com.alipay.api.response.AlipayTradeQueryResponse; 13 | import com.sock.alipayexample.config.AliPayConfig; 14 | import com.sock.alipayexample.entity.PayParams; 15 | import com.sock.alipayexample.service.AliPayService; 16 | import org.springframework.beans.factory.annotation.Autowired; 17 | import org.springframework.stereotype.Service; 18 | import org.springframework.util.StringUtils; 19 | 20 | /** 21 | * @program: springboot-example 22 | * @author: @ZhangHao 23 | * @create: 2020-10-09 23:03 24 | **/ 25 | @Service 26 | public class AliPayServiceImp implements AliPayService { 27 | 28 | @Autowired 29 | private AlipayClient alipayClient; 30 | 31 | /** 32 | * 生成交易二维码 33 | * 34 | * @param payParams 35 | * @return 36 | */ 37 | @Override 38 | public String tradePrecreate(PayParams payParams) { 39 | if (StringUtils.isEmpty(payParams.getOut_trade_no()) || StringUtils.isEmpty(payParams.getSubject()) || StringUtils.isEmpty(payParams.getTotal_amount())) 40 | throw new RuntimeException("异常参数"); 41 | 42 | AlipayTradePrecreateRequest request = new AlipayTradePrecreateRequest(); 43 | JSONObject params = JSONUtil.createObj(); 44 | params.set("out_trade_no", payParams.getOut_trade_no()); 45 | params.set("total_amount", payParams.getTotal_amount()); 46 | params.set("subject", payParams.getSubject()); 47 | params.set("timeout_express", AliPayConfig.TIMEOUT_EXPRESS); 48 | 49 | request.setBizContent(params.toString()); 50 | try { 51 | AlipayTradePrecreateResponse response = alipayClient.execute(request); 52 | // AlipayResponse alipayResponse = alipayClient.pageExecute(); 53 | //获取到支付二维码 54 | String qrCode = response.getQrCode(); 55 | return qrCode; 56 | } catch (AlipayApiException e) { 57 | e.printStackTrace(); 58 | } 59 | return null; 60 | } 61 | 62 | //@out_trade_no 订单id 63 | public String tradeQuery(String out_trade_no) { 64 | 65 | AlipayTradeQueryRequest request = new AlipayTradeQueryRequest(); 66 | 67 | JSONObject params = JSONUtil.createObj(); 68 | params.set("out_trade_no", out_trade_no); 69 | 70 | request.setBizContent(params.toString()); 71 | 72 | try { 73 | AlipayTradeQueryResponse response = alipayClient.execute(request); 74 | String body = response.getBody(); 75 | // * 交易状态：WAIT_BUYER_PAY（交易创建，等待买家付款）、TRADE_CLOSED（未付款交易超时关闭，或支付完成后全额退款）、TRADE_SUCCESS（交易支付成功）、TRADE_FINISHED（交易结束，不可退款） 76 | String tradeStatus = response.getTradeStatus(); 77 | // 具体业务具体分析 78 | return body; 79 | } catch (AlipayApiException e) { 80 | e.printStackTrace(); 81 | } 82 | 83 | return null; 84 | 85 | } 86 | } 87 | -------------------------------------------------------------------------------- /springboot-seckill/src/main/java/com/sock/seckillexample/controller/SeckillController.java: -------------------------------------------------------------------------------- 1 | package com.sock.seckillexample.controller; 2 | 3 | import org.redisson.api.RSemaphore; 4 | import org.redisson.api.RedissonClient; 5 | import org.springframework.beans.factory.annotation.Autowired; 6 | import org.springframework.beans.factory.annotation.Qualifier; 7 | import org.springframework.data.redis.core.RedisTemplate; 8 | import org.springframework.web.bind.annotation.GetMapping; 9 | import org.springframework.web.bind.annotation.RestController; 10 | 11 | import java.util.List; 12 | import java.util.UUID; 13 | import java.util.concurrent.TimeUnit; 14 | 15 | /** 16 | * @program: springboot-example 17 | * @author: @ZhangHao 18 | * @create: 2020-10-11 20:18 19 | **/ 20 | 21 | @RestController 22 | public class SeckillController { 23 | 24 | @Autowired 25 | @Qualifier("redistpls") 26 | private RedisTemplate redisTemplate; 27 | 28 | 29 | /** 30 | * 秒杀随机率较高 非先到先得 31 | * 32 | * @description: watch 33 | * @author: hr 34 | * @date: 2020/10/11 23:09 35 | * @param: null 36 | * @return: 37 | */ 38 | @GetMapping("seckill") 39 | public String seckill() { 40 | 41 | redisTemplate.watch("product"); 42 | Integer kc = (Integer) redisTemplate.opsForValue().get("product"); 43 | if (kc > 0) { 44 | redisTemplate.multi(); 45 | redisTemplate.opsForValue().decrement("product", 1); 46 | List exec = redisTemplate.exec(); 47 | if (null != exec && exec.size() > 0) { 48 | System.out.println("当前用户抢购到商品--" + kc + "+，已被抢购" + (100 - kc)); 49 | 50 | //send 订单信息 到mq消费 51 | } else { 52 | System.out.println("当前用户抢购失败--" + kc); 53 | } 54 | return null; 55 | } 56 | return null; 57 | } 58 | 59 | /** 60 | * 利用setnx进行 秒杀 61 | * 取前100 先到先得 不断自旋 62 | * 63 | * @description: 64 | * @author: hr 65 | * @date: 2020/10/12 0:18 66 | * @param: null 67 | * @return: 68 | */ 69 | boolean flag = false; 70 | 71 | @GetMapping("redisSetNx") 72 | public String redisSetNx() { 73 | if (flag = true) { 74 | return null; 75 | } 76 | String uuid = UUID.randomUUID().toString(); 77 | Boolean aBoolean = redisTemplate.opsForValue().setIfAbsent("product:seckill:lock", uuid, 2, TimeUnit.SECONDS); 78 | if (aBoolean) { 79 | Integer kc = (Integer) redisTemplate.opsForValue().get("product"); 80 | if (kc == 0) { 81 | if (uuid.equals(redisTemplate.opsForValue().get("product:seckill:lock"))) { 82 | redisTemplate.delete("product:seckill:lock"); 83 | } 84 | flag = true; 85 | } 86 | if (kc > 0) { 87 | redisTemplate.opsForValue().decrement("product", 1); 88 | System.out.println("当前用户" + Thread.currentThread().getName() + "抢购到商品--" + kc + "已被抢购" + (100 - kc)); 89 | //send 订单信息 到mq消费 90 | if (uuid.equals(redisTemplate.opsForValue().get("product:seckill:lock"))) { 91 | redisTemplate.delete("product:seckill:lock"); 92 | } 93 | 94 | } 95 | } else { 96 | System.out.println("当前用户" + Thread.currentThread().getName() + "抢购失败商品"); 97 | return redisSetNx(); 98 | } 99 | 100 | return null; 101 | 102 | } 103 | 104 | 105 | } 106 | -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 4.0.0 6 | 7 | org.example 8 | dependency-parent 9 | pom 10 | 1.0-SNAPSHOT 11 | 12 | springboot-alipay 13 | springboot-seckill 14 | 15 | 16 | 17 | 0.9.1 18 | 5.4.3 19 | 3.0 20 | 1.18.12 21 | 5.1.47 22 | 4.10.124.ALL 23 | Hoxton.SR8 24 | 2.3.3.RELEASE 25 | 26 | 27 | 28 | 29 | org.springframework.cloud 30 | spring-cloud-dependencies 31 | ${springcloud.version} 32 | pom 33 | import 34 | 35 | 36 | org.springframework.boot 37 | spring-boot-dependencies 38 | ${springboot.version} 39 | pom 40 | import 41 | 42 | 43 | cn.hutool 44 | hutool-all 45 | ${hutool.version} 46 | 47 | 48 | com.alipay.sdk 49 | alipay-sdk-java 50 | ${alipay.version} 51 | 52 | 53 | javax.servlet 54 | servlet-api 55 | ${servletApi.version} 56 | 57 | 58 | mysql 59 | mysql-connector-java 60 | ${mysql.verion} 61 | 62 | 63 | org.projectlombok 64 | lombok 65 | ${lombok.version} 66 | 67 | 68 | 69 | 70 | 71 | org.springframework.boot 72 | spring-boot-starter-test 73 | 74 | 75 | 76 | 77 | 78 | 79 | org.apache.maven.plugins 80 | maven-compiler-plugin 81 | 3.6.0 82 | 83 | UTF-8 84 | 1.8 85 | 1.8 86 | 87 | 88 | org.mapstruct 89 | mapstruct-processor 90 | 1.1.0.Final 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | --------------------------------------------------------------------------------