使用SpringBoot注解方式处理事务回滚实现
作者：风学长
这篇文章主要介绍了使用SpringBoot注解方式处理事务回滚实现，文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值，需要的朋友们下面随着小编来一起学习学习吧
我们在SpringBoot和MyBatis整合的时候，需要在SpringBoot中通过注解方式配置事务回滚
1 Pojo类
package com.zxf.domain;
import java.util.Date;
public class User {
private Integer id;
private String name;
private String pwd;
private String head_img;
private String phone;
private Date create_time;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
public String getHead_img() {
return head_img;
}
public void setHead_img(String head_img) {
this.head_img = head_img;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public Date getCreate_time() {
return create_time;
}
public void setCreate_time(Date create_time) {
this.create_time = create_time;
}
}
2 Mapper接口
我们这里使用注解的方式编写SQL语句
package com.zxf.mapper;
import com.zxf.domain.User;
import org.apache.ibatis.annotations.Insert;
import org.springframework.stereotype.Repository;
@Repository
public interface UserMapper {
@Insert("insert into user (name,pwd,head_img,phone,create_time) values(#{name},#{pwd},#{head_img},#{phone},#{create_time})")
public int save(User user);
}
3 Service接口和实现类
package com.zxf.service;
import com.zxf.domain.User;
public interface UserService {
public int save(User user);
}
package com.zxf.service.impl;
import com.zxf.domain.User;
import com.zxf.mapper.UserMapper;
import com.zxf.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
@Service
@Transactional //实现事务的时候要在业务类中加入该注解
public class UserServiceImpl implements UserService {
@Autowired
private UserMapper userMapper;
@Override
public int save(User user) {
int f= userMapper.save(user);
// int x=5/0;
return f;
}
}
4 Controller层
package com.zxf.controller;
import com.zxf.domain.User;
import com.zxf.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.Date;
@RestController
@RequestMapping("api/v1/user")
public class UserController {
@Autowired
private UserService userService;
@RequestMapping("save")
public Object save(){
User user=new User();
user.setName("zhang3");
user.setPwd("abc123");
user.setCreate_time(new Date());
user.setPhone("1789238734");
user.setHead_img("aabbddd.jpg");
userService.save(user);
return user;
}
}
5 application.properits 配置文件
spring.datasource.driver-class-name =com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/online spring.datasource.username=root spring.datasource.password=****** mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
6 pom文件
<?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>2.3.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.zxf</groupId>
<artifactId>xf_spring2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>xf_spring2</name>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.13</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
6 SpringBoot启动类
package com.zxf;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.transaction.annotation.EnableTransactionManagement;
@SpringBootApplication
@MapperScan("com.zxf.mapper")//扫描mapper接口
@EnableTransactionManagement//事务处理的时候启动类必须要加的注解
public class XfSpring2Application {
public static void main(String[] args) {
SpringApplication.run(XfSpring2Application.class, args);
}
}
7 也是最重要，也是很多人忽视的地方，就是MySQL要支持事务处理才可以
这里一定要记住；否则你的SpringBoot的事务没有任何效果
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