增加 seata 示例
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25
examples/seata-example/order-service/pom.xml
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25
examples/seata-example/order-service/pom.xml
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<?xml version="1.0"?>
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<project
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"
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xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.chinaunicom.mall.ebtp.cloud</groupId>
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<artifactId>seata-example</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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</parent>
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<groupId>com.chinaunicom.mall.ebtp.cloud</groupId>
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<artifactId>order-service</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<name>order-service</name>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>
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package com.chinaunicom.mall.ebtp.cloud.order;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
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import org.springframework.cloud.openfeign.EnableFeignClients;
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import org.springframework.context.annotation.Import;
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import com.chinaunicom.mall.ebtp.cloud.eureka.starter.EurekaStarterConfiguration;
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@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
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@EnableFeignClients
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@Import(EurekaStarterConfiguration.class)
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public class OrderSeataApplication {
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public static void main(String[] args) {
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SpringApplication.run(OrderSeataApplication.class, args);
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}
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}
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package com.chinaunicom.mall.ebtp.cloud.order.config;
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import javax.sql.DataSource;
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import org.springframework.beans.factory.annotation.Qualifier;
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import org.springframework.boot.context.properties.ConfigurationProperties;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.context.annotation.Primary;
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import com.alibaba.druid.pool.DruidDataSource;
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import com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean;
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import io.seata.rm.datasource.DataSourceProxy;
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@Configuration
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public class SeataDatasourceConfiguration {
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@Bean
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@ConfigurationProperties(prefix = "spring.datasource")
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public DataSource druidDataSource() {
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return new DruidDataSource();
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}
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@Primary
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@Bean("dataSource")
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public DataSourceProxy dataSource(DataSource druidDataSource) {
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return new DataSourceProxy(druidDataSource);
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}
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@Bean
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@ConfigurationProperties(prefix = "mybatis")
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public MybatisSqlSessionFactoryBean sqlSessionFactoryBean(@Qualifier("dataSource") DataSource dataSource) {
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// 这里用 MybatisSqlSessionFactoryBean 代替了 SqlSessionFactoryBean，否则 MyBatisPlus 不会生效
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MybatisSqlSessionFactoryBean mybatisSqlSessionFactoryBean = new MybatisSqlSessionFactoryBean();
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mybatisSqlSessionFactoryBean.setDataSource(dataSource);
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return mybatisSqlSessionFactoryBean;
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}
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}
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package com.chinaunicom.mall.ebtp.cloud.order.controller;
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import java.math.BigDecimal;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestBody;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.RestController;
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import com.chinaunicom.mall.ebtp.cloud.order.entity.Order;
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import com.chinaunicom.mall.ebtp.cloud.order.service.OrderService;
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@RestController
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@RequestMapping("order")
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public class OrderController {
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private @Autowired OrderService orderService;
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@GetMapping("create")
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public String create(@RequestBody Order order) {
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orderService.create(order);
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return "Create order success";
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}
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@RequestMapping("update")
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String update(@RequestParam("userId") Long userId, @RequestParam("money") BigDecimal money,
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@RequestParam("status") Integer status) {
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orderService.update(userId, money, status);
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return "订单状态修改成功";
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}
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}
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package com.chinaunicom.mall.ebtp.cloud.order.entity;
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import java.math.BigDecimal;
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import com.baomidou.mybatisplus.annotation.TableName;
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import lombok.Data;
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import lombok.experimental.Accessors;
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@Data
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@Accessors(chain = true)
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@TableName("order_tbl")
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public class Order {
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private Long id;
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private Long userId;
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private Long productId;
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private Integer count;
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private BigDecimal money;
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private Integer status;
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}
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package com.chinaunicom.mall.ebtp.cloud.order.feign;
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import java.math.BigDecimal;
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import org.springframework.cloud.openfeign.FeignClient;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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@FeignClient("account-service")
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public interface AccountApi {
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@RequestMapping("/account/decrease")
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String decrease(@RequestParam("userId") Long userId, @RequestParam("money") BigDecimal money);
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}
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package com.chinaunicom.mall.ebtp.cloud.order.feign;
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import org.springframework.cloud.openfeign.FeignClient;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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@FeignClient("storage-service")
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public interface StorageApi {
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@RequestMapping("/storage/decrease")
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String decrease(@RequestParam("productId") Long productId, @RequestParam("count") Integer count);
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}
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package com.chinaunicom.mall.ebtp.cloud.order.mapper;
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import java.math.BigDecimal;
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import org.apache.ibatis.annotations.Mapper;
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import org.apache.ibatis.annotations.Param;
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import org.apache.ibatis.annotations.Update;
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import com.baomidou.mybatisplus.core.mapper.BaseMapper;
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import com.chinaunicom.mall.ebtp.cloud.order.entity.Order;
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@Mapper
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public interface OrderMapper extends BaseMapper<Order> {
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@Update("UPDATE `order_tbl` SET money = money - #{money}, status = 1 WHERE user_id = #{userId} AND status = #{status};")
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void update(@Param("userId") Long userId, @Param("money") BigDecimal money, @Param("status") Integer status);
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}
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package com.chinaunicom.mall.ebtp.cloud.order.service;
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import java.math.BigDecimal;
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import com.chinaunicom.mall.ebtp.cloud.order.entity.Order;
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public interface OrderService {
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void create(Order order);
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void update(Long userId, BigDecimal money, Integer status);
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}
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package com.chinaunicom.mall.ebtp.cloud.order.service.impl;
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import java.math.BigDecimal;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import com.chinaunicom.mall.ebtp.cloud.order.entity.Order;
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import com.chinaunicom.mall.ebtp.cloud.order.feign.AccountApi;
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import com.chinaunicom.mall.ebtp.cloud.order.feign.StorageApi;
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import com.chinaunicom.mall.ebtp.cloud.order.mapper.OrderMapper;
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import com.chinaunicom.mall.ebtp.cloud.order.service.OrderService;
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import io.seata.spring.annotation.GlobalTransactional;
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import lombok.extern.slf4j.Slf4j;
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@Slf4j
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@Service
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public class OrderServiceImpl implements OrderService {
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private @Autowired OrderMapper orderMapper;
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private @Autowired StorageApi storageApi;
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private @Autowired AccountApi accountApi;
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@Override
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@GlobalTransactional(name = "fsp-create-order", rollbackFor = Exception.class)
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public void create(Order order) {
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log.info("-------->开始" + order);
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orderMapper.insert(order);
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// 扣减库存
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storageApi.decrease(order.getProductId(), order.getCount());
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log.info("-----------> 扣减账户开始");
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accountApi.decrease(order.getUserId(), order.getMoney());
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log.info("-----------> 扣减账户结束");
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log.info("--------> 交易结束");
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}
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@Override
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public void update(Long userId, BigDecimal money, Integer status) {
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log.info("修改订单状态，入参为：userId={},money={},status={}", userId, money, status);
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orderMapper.update(userId, money, status);
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}
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}
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logging:
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level:
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com.chinaunicom.mall.ebtp.cloud: info
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server:
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port: 8673
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spring:
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cloud:
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alibaba:
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seata:
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tx-service-group: test_tx_group
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datasource:
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driver-class-name: com.mysql.cj.jdbc.Driver
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url: jdbc:mysql://125.32.114.204:13306/ebtp-cloud?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true
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username: mall3-ebtp-dev
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password: mall3-ebtp-dev
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spring:
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profiles:
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active: dev
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application:
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name: order-service
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package com.chinaunicom.mall.ebtp.cloud.order;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.test.context.junit4.SpringRunner;
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import com.chinaunicom.mall.ebtp.cloud.order.entity.Order;
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import com.chinaunicom.mall.ebtp.cloud.order.mapper.OrderMapper;
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@RunWith(SpringRunner.class)
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@SpringBootTest
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public class AppTest {
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private @Autowired OrderMapper orderMapper;
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// @Test
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public void testInsert() {
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Order order = new Order();
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orderMapper.insert(order);
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}
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}
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