springboot事务触发滚动与不滚蛋

事务触发滚动与不滚蛋

代码：

MyBatisConfig 类

package org.example.testproduct;

import com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean;
import org.apache.ibatis.session.SqlSessionFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;

@Configuration
//@EnableTransactionManagement
public class MyBatisConfig {

    private final DataSource dataSource;

    public MyBatisConfig(DataSource dataSource) {
        this.dataSource = dataSource;
    }

    @Bean
    public SqlSessionFactory sqlSessionFactory() throws Exception {
        System.out.println("dataSource1 =           " + dataSource);
        // 使用MyBatis-Plus提供的SqlSessionFactoryBean
        MybatisSqlSessionFactoryBean factoryBean = new MybatisSqlSessionFactoryBean();
        factoryBean.setDataSource(dataSource);
        // 移除对XML映射文件的依赖，MyBatis-Plus可以自动生成SQL
        return factoryBean.getObject();
    }

    @Bean
    public PlatformTransactionManager transactionManager() {
        System.out.println("new DataSourceTransactionManager()"+new DataSourceTransactionManager(dataSource));
        return new DataSourceTransactionManager(dataSource);
    }
}

Order 类

package org.example.testproduct.order;

import com.baomidou.mybatisplus.annotation.TableName;
import lombok.Data;

@Data
@TableName("orders")
public class Order {

    private Long id;
    private String orderNo;
    private Integer amount;
}

OrderController类

package org.example.testproduct.order;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class OrderController {

    @Autowired
    private OrderService orderService;

    // 访问这个接口，事务会回滚
    @GetMapping("/order/tx")
    public String orderWithTx() {
        try {
            orderService.createOrderWithTransaction();
        } catch (Exception e) {
            return "Exception caught, transaction should rollback: " + e.getMessage();
        }
//        orderService.createOrderWithTransaction();
        return "ok";
    }

    // 访问这个接口，事务不会回滚
    @GetMapping("/order/notx")
    public String orderWithoutTx() {
        try {
            orderService.createOrderWithoutTransaction();
        } catch (Exception e) {
            return "Exception caught, transaction will NOT rollback: " + e.getMessage();
        }
        return "ok";
    }
}

OrderMapper 接口

package org.example.testproduct.order;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;

public interface OrderMapper extends BaseMapper<Order> {

}

OrderService 类

package org.example.testproduct.order;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
public class OrderService {

    @Autowired
    private OrderMapper orderMapper;

    // 这个方法有事务
    @Transactional
    public void createOrderWithTransaction() {
        Order order = new Order();
        order.setOrderNo("ORD-TX-" + System.currentTimeMillis());
        order.setAmount(100);

        orderMapper.insert(order);

        // 制造异常
        int x = 1 / 0;
    }

    // 这个方法没有事务
    public void createOrderWithoutTransaction() {
        Order order = new Order();
        order.setOrderNo("ORD-NO-" + System.currentTimeMillis());
        order.setAmount(200);

        orderMapper.insert(order);

        // 制造异常
        int x = 1 / 0;
    }
}

依赖：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>4.0.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>org.example</groupId>
    <artifactId>testproduct</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>testproduct</name>
    <description>testproduct</description>
    <url/>
    <licenses>
        <license/>
    </licenses>
    <developers>
        <developer/>
    </developers>
    <scm>
        <connection/>
        <developerConnection/>
        <tag/>
        <url/>
    </scm>
    <properties>
        <java.version>17</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- MySQL JDBC 驱动 -->
        <dependency>
            <groupId>com.mysql</groupId>
            <artifactId>mysql-connector-j</artifactId>

        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <scope>provided</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.baomidou/mybatis-plus-spring-boot3-starter -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-spring-boot3-starter</artifactId>
            <version>3.5.9</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

运行效果：

用apifox插件检查接口。