Aop-jdbc自定义事务管理（spring boot-JdbcTemplate）

刺骨的言语ヽ痛彻心扉 2022-02-23 08:06 209阅读 0赞

## 1、导包 ##

<dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-jdbc</artifactId>
                <version>2.1.4.RELEASE</version>
            </dependency>
    
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
            </dependency>

## 2、配置 ##

spring:
      datasource:
        url: jdbc:mysql://192.168.33.80:3306/test1?useUnicode=true&characterEncoding=utf-8&useSSL=false&useLegacyDatetimeCode=false&serverTimezone=Hongkong&zeroDateTimeBehavior=convertToNull
        username: root
        password: 123456

## 3、表对应的对象 ##

/**
     * Created on 2019/4/6.
     *
     * @author Grak
     * @since 1.0
     */
    public class Userinfo {
    
        private int uid;
    
        private String username;
    
        private String pwd;
    
        private String userimg;
    
        public int getUid() {
            return uid;
        }
    
        public void setUid(int uid) {
            this.uid = uid;
        }
    
        public String getUsername() {
            return username;
        }
    
        public void setUsername(String username) {
            this.username = username;
        }
    
        public String getPwd() {
            return pwd;
        }
    
        public void setPwd(String pwd) {
            this.pwd = pwd;
        }
    
        public String getUserimg() {
            return userimg;
        }
    
        public void setUserimg(String userimg) {
            this.userimg = userimg;
        }
    
        @Override
        public String toString() {
            return "Userinfo{" +
                    "uid=" + uid +
                    ", username='" + username + '\'' +
                    ", pwd='" + pwd + '\'' +
                    ", userimg='" + userimg + '\'' +
                    '}';
        }
    }

## 4、RowMapper ##

/**
     * Created on 2019/4/6.
     * 数据库字段和实际java对象转换
     * @author Grak
     * @since 1.0
     */
    public class MyRowMapper implements RowMapper<Userinfo> {
        @Override
        public Userinfo mapRow(ResultSet rs, int rowNum) throws SQLException {
            //使用的是数据库里面的名字
            int userId = rs.getInt("uid");
            String userName = rs.getString("username");
            String pwd = rs.getString("pwd");
            String userimg = rs.getString("userimg");
            Userinfo user = new Userinfo();
            user.setUid(userId);
            user.setUsername(userName);
            user.setPwd(pwd);
            user.setUserimg(userimg);
            return user;
        }
    }

## 5、数据库调用方法 ##

/**
     * Created on 2019/4/6.
     *
     * @author Grak
     * @since 1.0
     */
    public interface UserService {
    
        List<Userinfo> findAll();
        Userinfo findById(int userId);
        int create(String username,String pwd,String userimg);
        int update(String username,String pwd,String userimg, int userId);
        int delete(int userId);
    }

## 6、sql实现逻辑绑定 ##

/**
     * Created on 2019/4/6.
     *
     * @author Grak
     * @since 1.0
     */
    @Service
    public class UserServiceImpl implements UserService {
    
        @Autowired
        private JdbcTemplate jdbcTemplate;
    
        @Override
        public List<Userinfo> findAll() {
            String sql = "select * from userinfo ";
            return this.jdbcTemplate.query(sql,new MyRowMapper());
        }
    
        @Override
        public Userinfo findById(int userId) {
            String sql = "select * from userinfo where uid = ?";
            Userinfo user = jdbcTemplate.queryForObject(sql,new MyRowMapper(),userId);
            return user;
        }
    
        @Override
        public int create(String username, String pwd, String userimg) {
            String sql = "insert into userinfo(username,pwd,userimg) values(?,?,?)";
            return jdbcTemplate.update(sql,username,pwd,userimg);
        }
    
        @Override
        public int update(String username, String pwd, String userimg, int userId) {
            String sql = "update userinfo set username = ? , pwd = ? , userimg = ? where uid = ?";
            return jdbcTemplate.update(sql, username,pwd,userimg,userId);
        }
    
        @Override
        public int delete(int userId) {
            String sql = "delete from userinfo where uid = ?";
            return jdbcTemplate.update(sql,userId);
        }
    }

## 7、事务监听逻辑类 ##

/**
     * Created on 2019/4/6.
     *
     * @author Grak
     * @since 1.0
     */
    @Component
    public class DemoAspect {
    
        @Autowired
        private UserService user;
    
        public void runAspect(){
            //事务里面不要用try catch 如果使用了一定要手动回滚
            user.create("刘良","mm","江西");
            List<Userinfo> userinfos =  user.findAll();
            int uid = 0;
            for(Userinfo info : userinfos){
                if(info.getUsername().equals("刘良")){
                    uid = info.getUid();
                }
            }
            System.out.println("用户信息：" + user.findById(uid));
            int m = 1/0;//模拟异常，回滚提交
            user.update("李白","ww","麻花",uid);
            System.out.println("用户修改：" + user.findById(uid));
    //        user.delete(uid);
        }
    }

## 8.maina方法 ##

@SpringBootApplication
    public class AopApplication {
    
        public static void main(String[] args) {
            ConfigurableApplicationContext ctx = SpringApplication.run(AopApplication.class, args);
    
            DemoAspect user = (DemoAspect) ctx.getBean("demoAspect");
            user.runAspect();
    
    
        }
    }