LCN框架解决分布式事务-客户端编写

pom.xml

<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>

        <dependency>
            <groupId>com.codingapi.txlcn</groupId>
            <artifactId>txlcn-tc</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>com.codingapi.txlcn</groupId>
            <artifactId>txlcn-txmsg-netty</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>


        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

application.yml

# LCN
tx-lcn:
  client:
    manager-address: 127.0.0.1:8070
  logger:
    enabled: false

feign:
  hystrix:
    enabled: true

LcnClientApplication.java

package com.mshine.cloud;

import com.codingapi.txlcn.tc.config.EnableDistributedTransaction;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.openfeign.EnableFeignClients;

@SpringBootApplication
@EnableFeignClients
@EnableDistributedTransaction
public class LcnClientApplication {

  public static void main(String[] args) {
    SpringApplication.run(LcnClientApplication.class, args);
  }

}

TestController.java

package com.mshine.cloud.controller;

import com.codingapi.txlcn.tc.annotation.LcnTransaction;
import com.mshine.cloud.service.TestAService;
import com.mshine.cloud.service.TestBService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TestController {

    @Autowired
    TestAService testAService;
    @Autowired
    TestBService testBService;

    @LcnTransaction //lcn的事务注解
    @RequestMapping("/test")
    public String test() {
        System.out.println(testAService.test());
        System.out.println(testBService.test());
        return "成功";
    }
}

TestAService.java

package com.mshine.cloud.service;

import com.mshine.cloud.service.fallback.TestAServiceHystric;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;

@FeignClient(value = "lcn-service-a", fallback = TestAServiceHystric.class)
public interface TestAService {

    @RequestMapping(value = "/test")
    String test();

}

TestBService.java

package com.mshine.cloud.service;


import com.mshine.cloud.service.fallback.TestBServiceHystric;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;

@FeignClient(value = "lcn-service-b", fallback = TestBServiceHystric.class)
public interface TestBService {

    @RequestMapping(value = "/test")
    String test();

}

TestAServiceHystric.java

package com.mshine.cloud.service.fallback;

import com.codingapi.txlcn.tc.support.DTXUserControls;
import com.codingapi.txlcn.tracing.TracingContext;
import com.mshine.cloud.service.TestAService;
import org.springframework.stereotype.Component;

@Component
public class TestAServiceHystric implements TestAService {

    @Override
    public String test() {
        DTXUserControls.rollbackGroup(TracingContext.tracing().groupId());
        return "失败";
    }
}

TestBServiceHystric.java

package com.mshine.cloud.service.fallback;

import com.codingapi.txlcn.tc.support.DTXUserControls;
import com.codingapi.txlcn.tracing.TracingContext;
import com.mshine.cloud.service.TestBService;
import org.springframework.stereotype.Component;

@Component
public class TestBServiceHystric implements TestBService {
    @Override
    public String test() {
        DTXUserControls.rollbackGroup(TracingContext.tracing().groupId());
        return "失败";
    }
}

---

pom.xml

<dependency>
            <groupId>com.mingshine</groupId>
            <artifactId>cloud-mybatis</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>com.codingapi.txlcn</groupId>
            <artifactId>txlcn-tc</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>com.codingapi.txlcn</groupId>
            <artifactId>txlcn-txmsg-netty</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

application.yml

---
# LCN
tx-lcn:
  client:
    manager-address: 127.0.0.1:8070
  logger:
    enabled: false

LcnServiceAApplication.java

package com.mshine.cloud;

import com.codingapi.txlcn.tc.config.EnableDistributedTransaction;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

@SpringBootApplication
@EnableEurekaClient
@MapperScan("com.mshine.cloud.mybatis.mapper") //扫描的mapper
@EnableDistributedTransaction
public class LcnServiceAApplication {

  public static void main(String[] args) {
    SpringApplication.run(LcnServiceAApplication.class, args);
  }

}

TestController.java

package com.mshine.cloud.controller;

import com.alibaba.fastjson.JSON;
import com.codingapi.txlcn.tc.annotation.DTXPropagation;
import com.codingapi.txlcn.tc.annotation.LcnTransaction;
import com.mshine.cloud.mybatis.entity.TbUser;
import com.mshine.cloud.mybatis.mapper.TbUserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TestController {
    @Autowired
    TbUserMapper tbUserMapper;

    @RequestMapping("/test")
    @LcnTransaction(propagation = DTXPropagation.SUPPORTS)
    @Transactional
    public String test() {
        TbUser tbUser = new TbUser();
        tbUser.setName("AAAAAAA" + System.currentTimeMillis());
        tbUserMapper.insert(tbUser);
        return JSON.toJSONString(tbUser);
    }
}

---

pom.xml

<dependency>
      <groupId>com.mingshine</groupId>
      <artifactId>cloud-mybatis</artifactId>
      <version>0.0.1-SNAPSHOT</version>
    </dependency>
    <dependency>
      <groupId>com.codingapi.txlcn</groupId>
      <artifactId>txlcn-tc</artifactId>
      <version>5.0.2.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>com.codingapi.txlcn</groupId>
      <artifactId>txlcn-txmsg-netty</artifactId>
      <version>5.0.2.RELEASE</version>
    </dependency>

application.yml

---
# LCN
tx-lcn:
  client:
    manager-address: 127.0.0.1:8070
  logger:
    enabled: false

LcnServiceBApplication.java

package com.mshine.cloud;

import com.codingapi.txlcn.tc.config.EnableDistributedTransaction;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

@SpringBootApplication
@EnableEurekaClient
@MapperScan("com.mshine.cloud.mybatis.mapper") //扫描的mapper
@EnableDistributedTransaction
public class LcnServiceBApplication {

  public static void main(String[] args) {
    SpringApplication.run(LcnServiceBApplication.class, args);
  }

}

TestController.java

package com.mshine.cloud.controller;

import com.alibaba.fastjson.JSON;
import com.codingapi.txlcn.tc.annotation.DTXPropagation;
import com.codingapi.txlcn.tc.annotation.LcnTransaction;
import com.codingapi.txlcn.tc.config.EnableDistributedTransaction;
import com.mshine.cloud.mybatis.entity.TbUser;
import com.mshine.cloud.mybatis.mapper.TbUserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@EnableDistributedTransaction
public class TestController {
    @Autowired
    TbUserMapper tbUserMapper;

    @RequestMapping("/test")
    @LcnTransaction(propagation = DTXPropagation.SUPPORTS)
    @Transactional
    public String test() {
        TbUser tbUser = new TbUser();
        tbUser.setName("BBBBBBB" + System.currentTimeMillis());
        tbUserMapper.insert(tbUser);
        int i = 1 / 0;
        return JSON.toJSONString(tbUser);
    }
}

备注：事物发起方使用REQUIRED，事物参与方使用SUPPORTS