SpringCloud（第 042 篇）链接Mysql数据库,通过JdbcTemplate编写数据库

摘要：由于简单用户链接数据库微服务通过注解标注该类为持久化操作对象。由于是的子类，所以属于的子类异常抛出来，都会回滚数据。添加一个使用接收请求添加一个使用接收请求添加微服务启动类链接数据库通过编写数据库访问而且支持事物处理机制。

-

1、在数据库操作中，当遇到异常时，我们最关心的是部分回滚还是整体回滚还是不理会，怎么操作怎么来；
2、所以本章节就着重讲解了如何运用Transactional注解来处理事物回滚机制；
3、rollbackFor 属性：抛出的异常是 rollbackFor 异常的子类时都会回滚数据；
4、noRollbackFor 属性：抛出的异常是 noRollbackFor 异常的子类时不会回滚数据；抛出的异常不是 noRollbackFor 异常的子类时会回滚数据；

    4.0.0

    springms-provider-user-mysql-jdbctemplate-transactional
    1.0-SNAPSHOT
    jar
    
    
        com.springms.cloud
        springms-spring-cloud
        1.0-SNAPSHOT
    
    
    
        
        
            org.springframework.boot
            spring-boot-starter-data-jpa
        

        
        
            org.springframework.boot
            spring-boot-starter-web
        

        
        
            mysql
            mysql-connector-java
        
    

server:
  port: 8335
spring:
  application:
    name: springms-provider-user-mysql-jdbctemplate-transactional  #全部小写


#####################################################################################################
# mysql 属性配置
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://ip:3306/hmilyylimh
    username: username
    password: password
  jpa:
    hibernate:
      #ddl-auto: create #ddl-auto:设为create表示每次都重新建表
      ddl-auto: update #ddl-auto:设为update表示每次都不会重新建表
    show-sql: true
#####################################################################################################







#####################################################################################################
# 打印日志
logging:
  level:
    root: INFO
    org.hibernate: INFO
    org.hibernate.type.descriptor.sql.BasicBinder: TRACE
    org.hibernate.type.descriptor.sql.BasicExtractor: TRACE
    com.springms: DEBUG
#####################################################################################################

package com.springms.cloud.entity;

public class User {

  private Long id;

  private String username;

  private String name;

  private Integer age;

  private String balance;

  public Long getId() {
    return this.id;
  }

  public void setId(Long id) {
    this.id = id;
  }

  public String getUsername() {
    return this.username;
  }

  public void setUsername(String username) {
    this.username = username;
  }

  public String getName() {
    return this.name;
  }

  public void setName(String name) {
    this.name = name;
  }

  public Integer getAge() {
    return this.age;
  }

  public void setAge(Integer age) {
    this.age = age;
  }

  public String getBalance() {
    return this.balance;
  }

  public void setBalance(String balance) {
    this.balance = balance;
  }

  @Override
  public String toString() {
    return "User{" +
            "id=" + id +
            ", username="" + username + """ +
            ", name="" + name + """ +
            ", age=" + age +
            ", balance="" + balance + """ +
            "}";
  }
}

package com.springms.cloud.entity;

public class Account {
    private int id ;
    private String name ;
    private double money;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public double getMoney() {
        return money;
    }

    public void setMoney(double money) {
        this.money = money;
    }

    @Override
    public String toString() {
        return "Account{" +
                "id=" + id +
                ", name="" + name + """ +
                ", money=" + money +
                "}";
    }
}

package com.springms.cloud.dao;

import com.springms.cloud.entity.User;

import java.util.List;

/**
 * 简单用户链接Mysql数据库微服务（通过@Repository注解标注该类为持久化操作对象）。
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
public interface IUserDao {

    User findUserById(Long id);

    List findAllUsers();

    int insertUser(User user);

    int addUser(User user);

    int replaceUser(User user);
}

package com.springms.cloud.dao;

import com.springms.cloud.entity.Account;

import java.util.List;


public interface IAccountDao {

    int add(Account account);

    int update(Account account);

    int delete(int id);

    Account findAccountById(int id);

    List findAccountList();
}

package com.springms.cloud.dao.impl;

import com.springms.cloud.dao.IUserDao;
import com.springms.cloud.entity.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Repository;

import java.util.List;

/**
 * 简单用户链接Mysql数据库微服务（通过@Repository注解标注该类为持久化操作对象）。
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
@Repository
public class UserDaoImpl implements IUserDao {

    /**
     * 通过@Resource注解引入JdbcTemplate对象。
     */
    @Autowired
    private JdbcTemplate jdbcTemplate;

    @Override
    public User findUserById(Long id){
        // 1. 定义一个sql语句
        String querySQL = "select * from user where id = ?";

        // 2. 定义一个RowMapper
        RowMapper rowMapper = new BeanPropertyRowMapper(User.class);

        // 3. 执行查询方法

        //List list = jdbcTemplate.query("select * from account where id = ?", new Object[]{id}, new BeanPropertyRowMapper(User.class));

        User user = jdbcTemplate.queryForObject(querySQL, new Object[]{id}, rowMapper);

        return user;
    }

    @Override
    public List findAllUsers(){
        // 1. 定义一个sql语句
        String querySQL = "select * from user";

        // 2. 定义一个RowMapper
        RowMapper rowMapper = new BeanPropertyRowMapper(User.class);

        // 3. 执行查询方法
        List users = jdbcTemplate.query(querySQL, new Object[]{}, rowMapper);

        return users;
    }

    @Override
    public int insertUser(User user) {
        // 1. 定义一个sql语句
        String execSQL = "INSERT into user (username, name, age, balance) values (?, ?, ?, ?)";

        // 2. 执行查询方法
        int result = jdbcTemplate.update(execSQL,
                new Object[]{user.getUsername(), user.getName(), user.getAge(), user.getBalance()});

        return result;
    }

    @Override
    public int addUser(User user) {
        // 1. 定义一个sql语句
        String execSQL = "INSERT into user (username, name, age, balance) values (?, ?, ?, ?)";

        // 2. 执行查询方法
        int result = jdbcTemplate.update(execSQL,
                new Object[]{user.getUsername(), user.getName(), user.getAge(), user.getBalance()});

        return result;
    }

    @Override
    public int replaceUser(User user) {
        // 1. 定义一个sql语句
        String execSQL = "INSERT into user (username, name, age, balance) values (?, ?, ?, ?)";

        // 2. 执行查询方法
        int result = jdbcTemplate.update(execSQL,
                new Object[]{user.getUsername(), user.getName(), user.getAge(), user.getBalance()});

        return result;
    }
}

package com.springms.cloud.dao.impl;

import com.springms.cloud.dao.IAccountDao;
import com.springms.cloud.entity.Account;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;

import java.util.List;


@Repository
public class AccountDaoImpl implements IAccountDao {

    @Autowired
    private JdbcTemplate jdbcTemplate;

    @Override
    public int add(Account account) {
        return jdbcTemplate.update("insert into account(name, money) values(?, ?)",
              account.getName(),account.getMoney());

    }

    @Override
    public int update(Account account) {
        return jdbcTemplate.update("UPDATE  account SET NAME=? ,money=? WHERE id=?",
                account.getName(),account.getMoney(),account.getId());
    }

    @Override
    public int delete(int id) {
        return jdbcTemplate.update("DELETE from TABLE account where id=?",id);
    }

    @Override
    public Account findAccountById(int id) {
        List list = jdbcTemplate.query("select * from account where id = ?", new Object[]{id}, new BeanPropertyRowMapper(Account.class));
        if(list!=null && list.size()>0){
            Account account = list.get(0);
            return account;
        }else{
            return null;
        }
    }

    @Override
    public List findAccountList() {
        List list = jdbcTemplate.query("select * from account", new Object[]{}, new BeanPropertyRowMapper(Account.class));
        if(list!=null && list.size()>0){
            return list;
        }else{
            return null;
        }
    }
}

package com.springms.cloud.service.impl;

import com.springms.cloud.dao.IUserDao;
import com.springms.cloud.entity.User;
import com.springms.cloud.exception.BusinessExtendsException;
import com.springms.cloud.exception.RollbackExceptionExtendsRuntimeException;
import com.springms.cloud.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Isolation;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * 简单用户链接Mysql数据库微服务（通过@Service注解标注该类为持久化操作对象）。
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
@Service
public class UserServiceImpl implements IUserService{

    @Autowired
    private IUserDao userDao;

    @Transactional(readOnly = true)
    @Override
    public User findUserById(Long id){
        return userDao.findUserById(id);
    }

    @Transactional(readOnly = true)
    @Override
    public List findAllUsers(){
        return userDao.findAllUsers();
    }

    /**
     * 由于 RuntimeExcepackage com.springms.cloud.service;
                     
                     import com.springms.cloud.entity.User;
                     
                     import java.util.List;
                     
                     /**
                      * 简单用户链接Mysql数据库微服务（通过@Service注解标注该类为持久化操作对象）。
                      *
                      * @author hmilyylimh
                      *
                      * @version 0.0.1
                      *
                      * @date 17/10/18
                      *
                      */
                     public interface IUserService {
                     
                         User findUserById(Long id);
                     
                         List findAllUsers();
                     
                         int insertUser(User user);
                     
                         int addUser(User user);
                     
                         int replaceUser(User user) throws Exception;
                     }

package com.springms.cloud.service;

import com.springms.cloud.entity.Account;

import java.util.List;


public interface IAccountService {


    int add(Account account);

    int update(Account account);

    int delete(int id);

    Account findAccountById(int id);

    List findAccountList();

}

package com.springms.cloud.service;

import com.springms.cloud.entity.Account;
import com.springms.cloud.entity.User;

/**
 * 简单用户链接Mysql数据库微服务（通过@Service注解标注该类为持久化操作对象）。
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
public interface IMovieService {

    int addMovie(User user, Account account);

    int insertMovie(User user, Account account) throws Exception;
}

package com.springms.cloud.service.impl;

import com.springms.cloud.dao.IUserDao;
import com.springms.cloud.entity.User;
import com.springms.cloud.exception.BusinessExtendsException;
import com.springms.cloud.exception.RollbackExceptionExtendsRuntimeException;
import com.springms.cloud.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Isolation;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * 简单用户链接Mysql数据库微服务（通过@Service注解标注该类为持久化操作对象）。
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
@Service
public class UserServiceImpl implements IUserService{

    @Autowired
    private IUserDao userDao;

    @Transactional(readOnly = true)
    @Override
    public User findUserById(Long id){
        return userDao.findUserById(id);
    }

    @Transactional(readOnly = true)
    @Override
    public List findAllUsers(){
        return userDao.findAllUsers();
    }

    /**
     * 由于 RuntimeException、RollbackExceptionExtendsRuntimeException 是 Exception 的子类，所以属于 Exception 的子类异常抛出来，都会回滚数据。
     *
     * @param user
     * @return
     */
    @Transactional(propagation = Propagation.REQUIRED, isolation= Isolation.DEFAULT, rollbackFor = Exception.class)
    @Override
    public int insertUser(User user) {
        int result = userDao.insertUser(user);

        if(result > 0){
            // throw new RuntimeException("抛出 RuntimeException 异常，测试 rollbackFor = Exception.class 是否有效？");
            throw new RollbackExceptionExtendsRuntimeException("抛出 RollbackExceptionExtendsRuntimeException 异常，测试 rollbackFor = Exception.class 是否有效？");
        }

        return result;
    }

    @Override
    public int addUser(User user) {
        return userDao.addUser(user);
    }

    /**
     *
     * 由于 RollbackExceptionExtendsException 是 Exception 的子类，不是 BusinessExtendsException 的子类，所以抛出该异常，会回滚数据；

     *
     * 
注意：如果要使得 noRollbackFor 属性生效，注解中 @Transactional 必须得只有 noRollbackFor 属性，然后 noRollbackFor 的异常必须得是自己定义的异常，然后抛 RuntimeException 异常，这样我们才可以测出 noRollbackFor 回滚与不回滚的场景出来；
     *
     * @param user
     * @return
     */
    @Transactional(noRollbackFor = BusinessExtendsException.class)
    @Override
    public int replaceUser(User user) throws Exception {
        int result = userDao.insertUser(user);

        if(result > 0){
            // throw new NullPointerException("抛出 NullPointerException 异常，测试 noRollbackFor = RuntimeException.class 是否有效？");
            // throw new RollbackExceptionExtendsException("抛出 RollbackExceptionExtendsException 异常，测试 noRollbackFor = RuntimeException.class 是否有效？");
            // throw new BusinessSubExtendsException("抛出 BusinessSubExtendsException 异常，测试 noRollbackFor = RuntimeException.class 是否有效？");
            throw new RuntimeException("抛出 RuntimeException 异常，测试 noRollbackFor = RuntimeException.class 是否有效？");
        }

        return result;
    }
}

package com.springms.cloud.service.impl;

import com.springms.cloud.dao.IAccountDao;
import com.springms.cloud.entity.Account;
import com.springms.cloud.service.IAccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;


@Service
public class AccountServiceImpl implements IAccountService {

    @Autowired
    IAccountDao accountDAO;

    @Override
    public int add(Account account) {
        return accountDAO.add(account);
    }

    @Override
    public int update(Account account) {
        return accountDAO.update(account);
    }

    @Override
    public int delete(int id) {
        return accountDAO.delete(id);
    }

    @Override
    public Account findAccountById(int id) {
        return accountDAO.findAccountById(id);
    }

    @Override
    public List findAccountList() {
        return accountDAO.findAccountList();
    }
}

package com.springms.cloud.service.impl;

import com.springms.cloud.dao.IAccountDao;
import com.springms.cloud.dao.IUserDao;
import com.springms.cloud.entity.Account;
import com.springms.cloud.entity.User;
import com.springms.cloud.exception.BusinessExtendsException;
import com.springms.cloud.exception.BusinessSubExtendsException;
import com.springms.cloud.service.IMovieService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Isolation;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

/**
 * 简单用户链接Mysql数据库微服务（通过@Service注解标注该类为持久化操作对象）。
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
@Service
public class MovieServiceImpl implements IMovieService {

    @Autowired
    private IUserDao userDao;

    @Autowired
    private IAccountDao accountDao;

    @Transactional(propagation = Propagation.REQUIRED, isolation= Isolation.DEFAULT, rollbackFor = Exception.class)
    @Override
    public int addMovie(User user, Account account) {

        int result1 = userDao.addUser(user);
        int result2 = accountDao.add(account);

        if(result1 > 0 || result2 > 0){
            throw new RuntimeException("抛出 RuntimeException 异常，测试 rollbackFor = Exception.class 是否有效？");
        }

        return 0;
    }

    @Transactional(noRollbackFor = BusinessExtendsException.class)
    @Override
    public int insertMovie(User user, Account account) throws Exception {

        int result1 = userDao.insertUser(user);
        int result2 = accountDao.add(account);

        if(result1 > 0 || result2 > 0){
            // throw new NullPointerException("抛出 NullPointerException 异常，测试 noRollbackFor = RuntimeException.class 是否有效？");
            // throw new RollbackExceptionExtendsException("抛出 RollbackExceptionExtendsException 异常，测试 noRollbackFor = RuntimeException.class 是否有效？");
            throw new BusinessSubExtendsException("抛出 BusinessSubExtendsException 异常，测试 noRollbackFor = RuntimeException.class 是否有效？");
            // throw new RuntimeException("抛出 RuntimeException 异常，测试 noRollbackFor = RuntimeException.class 是否有效？");
        }

        return 0;
    }
}

package com.springms.cloud.exception;

/**
 *
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
public class BusinessExtendsException extends Exception {

    public BusinessExtendsException() {
    }

    public BusinessExtendsException(String message) {
        super(message);
    }

    public BusinessExtendsException(String message, Throwable cause) {
        super(message, cause);
    }

    public BusinessExtendsException(Throwable cause) {
        super(cause);
    }

    public BusinessExtendsException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
        super(message, cause, enableSuppression, writableStackTrace);
    }
}

package com.springms.cloud.exception;

/**
 *
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
public class BusinessSubExtendsException extends BusinessExtendsException {

    public BusinessSubExtendsException() {
    }

    public BusinessSubExtendsException(String message) {
        super(message);
    }

    public BusinessSubExtendsException(String message, Throwable cause) {
        super(message, cause);
    }

    public BusinessSubExtendsException(Throwable cause) {
        super(cause);
    }

    public BusinessSubExtendsException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
        super(message, cause, enableSuppression, writableStackTrace);
    }
}

package com.springms.cloud.exception;

/**
 *
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
public class RollbackExceptionExtendsException extends Exception {

    public RollbackExceptionExtendsException() {
    }

    public RollbackExceptionExtendsException(String message) {
        super(message);
    }

    public RollbackExceptionExtendsException(String message, Throwable cause) {
        super(message, cause);
    }

    public RollbackExceptionExtendsException(Throwable cause) {
        super(cause);
    }

    public RollbackExceptionExtendsException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
        super(message, cause, enableSuppression, writableStackTrace);
    }
}

package com.springms.cloud.exception;

/**
 * 回滚异常，测试语句：@Transactional(propagation = Propagation.REQUIRED, isolation= Isolation.DEFAULT, rollbackFor = Exception.class) 是否生效。
 *
 * 结果：含有该属性的 rollbackFor = Exception.class，只要抛出的异常属于 Exception 的子类的话，就可以正常回滚数据；
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
public class RollbackExceptionExtendsRuntimeException extends RuntimeException {

    public RollbackExceptionExtendsRuntimeException() {
    }

    public RollbackExceptionExtendsRuntimeException(String message) {
        super(message);
    }

    public RollbackExceptionExtendsRuntimeException(String message, Throwable cause) {
        super(message, cause);
    }

    public RollbackExceptionExtendsRuntimeException(Throwable cause) {
        super(cause);
    }

    public RollbackExceptionExtendsRuntimeException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
        super(message, cause, enableSuppression, writableStackTrace);
    }
}

package com.springms.cloud.controller;

import com.springms.cloud.service.IUserService;
import com.springms.cloud.entity.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.ArrayList;
import java.util.List;

/**
 * 用户微服务Controller。
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
@RestController
public class UserMysqlJdbcTransactionalController {

    @Autowired
    private IUserService userService;

    @GetMapping("/simplejdbc/{id}")
    public User findUserById(@PathVariable Long id) {
        return this.userService.findUserById(id);
    }

    @GetMapping("/simplejdbc/list")
    public List findAllUsers() {
        List users  = this.userService.findAllUsers();

        List resultUsers = new ArrayList<>(users.subList(users.size()-6, users.size()));

        return resultUsers;
    }

    /**
     * 添加一个student,使用postMapping接收post请求
     *
     * http://localhost:8315/simple/addUser?username=user11&age=11&balance=11
     *
     * @return
     */
    @PostMapping("/simplejdbc/insertUser")
    public User insertUser(@RequestParam(value = "username", required=false) String username, @RequestParam(value = "age", required=false) Integer age, @RequestParam(value = "balance", required=false) String balance){
        User user=new User();

        user.setUsername(username);
        user.setName(username);
        user.setAge(age);
        user.setBalance(balance);

        int result = userService.insertUser(user);
        if(result > 0){
            return user;
        }

        user.setId(0L);
        user.setName(null);
        user.setUsername(null);
        user.setBalance(null);
        return user;
    }

    /**
     * 添加一个student,使用postMapping接收post请求
     *
     * http://localhost:8315/simple/addUser?username=user11&age=11&balance=11
     *
     * @return
     */
    @PostMapping("/simplejdbc/addUser")
    public User addUser(@RequestParam(value = "username", required=false) String username, @RequestParam(value = "age", required=false) Integer age, @RequestParam(value = "balance", required=false) String balance){
        User user=new User();

        user.setUsername(username);
        user.setName(username);
        user.setAge(age);
        user.setBalance(balance);

        int result = userService.addUser(user);
        if(result > 0){
            return user;
        }

        user.setId(0L);
        user.setName(null);
        user.setUsername(null);
        user.setBalance(null);
        return user;
    }

    /**
     * 添加一个student,使用postMapping接收post请求
     *
     * http://localhost:8315/simple/addUser?username=user11&age=11&balance=11
     *
     * @return
     */
    @PostMapping("/simplejdbc/replaceUser")
    public User replaceUser(@RequestParam(value = "username", required=false) String username, @RequestParam(value = "age", required=false) Integer age, @RequestParam(value = "balance", required=false) String balance) throws Exception
    {
        User user=new User();

        user.setUsername(username);
        user.setName(username);
        user.setAge(age);
        user.setBalance(balance);

        int result = 0;
        result = userService.replaceUser(user);

        user.setId((long) 0);
        user.setName(null);
        user.setUsername(null);
        user.setBalance(null);
        return user;
    }
}

package com.springms.cloud.controller;

import com.springms.cloud.entity.Account;
import com.springms.cloud.service.IAccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;


@RestController
@RequestMapping("/account")
public class AccountController {

    @Autowired
    IAccountService accountService;

    @RequestMapping(value = "/list",method = RequestMethod.GET)
    public  List getAccounts(){
       return accountService.findAccountList();
    }

    @RequestMapping(value = "/{id}",method = RequestMethod.GET)
    public  Account getAccountById(@PathVariable("id") int id){
        return accountService.findAccountById(id);
    }

    @RequestMapping(value = "/{id}",method = RequestMethod.PUT)
    public  String updateAccount(@PathVariable("id")int id , @RequestParam(value = "name",required = true)String name,
    @RequestParam(value = "money" ,required = true)double money){
        Account account=new Account();
        account.setMoney(money);
        account.setName(name);
        account.setId(id);
        int t=accountService.update(account);
        if(t==1){
            return account.toString();
        }else {
            return "fail";
        }
    }

    @RequestMapping(value = "",method = RequestMethod.POST)
    public  String postAccount( @RequestParam(value = "name")String name,
                                 @RequestParam(value = "money" )double money){
        Account account=new Account();
        account.setMoney(money);
        account.setName(name);
        int t= accountService.add(account);
        if(t==1){
            return account.toString();
        }else {
            return "fail";
        }
    }
}

package com.springms.cloud.controller;

import com.springms.cloud.entity.Account;
import com.springms.cloud.entity.User;
import com.springms.cloud.service.IMovieService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

/**
 * 用户微服务电影Controller。
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
@RestController
public class MovieMysqlJdbcTransactionalController {

    @Autowired
    private IMovieService moiveService;

    /**
     * 添加一个student,使用postMapping接收post请求
     *
     * http://localhost:8335/simple/addUser?username=user11&age=11&balance=11
     *
     * @return
     */
    @PostMapping("/movie/addMovie")
    public User addMovie(@RequestParam(value = "username", required=false) String username, @RequestParam(value = "age", required=false) Integer age, @RequestParam(value = "balance", required=false) String balance){
        User user=new User();

        user.setUsername(username);
        user.setName(username);
        user.setAge(age);
        user.setBalance(balance);

        Account account = new Account();
        account.setName(username);
        account.setMoney(Double.parseDouble(balance));

        int result = moiveService.addMovie(user, account);
        if(result > 0){
            return user;
        }

        user.setId(0L);
        user.setName(null);
        user.setUsername(null);
        user.setBalance(null);
        return user;
    }

    /**
     * 添加一个student,使用postMapping接收post请求
     *
     * http://localhost:8335/simple/addUser?username=user11&age=11&balance=11
     *
     * @return
     */
    @PostMapping("/movie/insertMovie")
    public User insertMovie(@RequestParam(value = "username", required=false) String username, @RequestParam(value = "age", required=false) Integer age, @RequestParam(value = "balance", required=false) String balance) throws Exception {
        User user=new User();

        user.setUsername(username);
        user.setName(username);
        user.setAge(age);
        user.setBalance(balance);

        Account account = new Account();
        account.setName(username);
        account.setMoney(Double.parseDouble(balance));

        int result = moiveService.insertMovie(user, account);
        if(result > 0){
            return user;
        }

        user.setId(0L);
        user.setName(null);
        user.setUsername(null);
        user.setBalance(null);
        return user;
    }
}

package com.springms.cloud;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * 链接Mysql数据库,通过JdbcTemplate编写数据库访问,而且支持事物处理机制。
 *
 * @author hmilyylimh
 *
 * @version 0.0.1
 *
 * @date 17/10/18
 *
 */
@SpringBootApplication
public class MsProviderUserMysqlJdbcTransactionalApplication {

    public static void main(String[] args) {
        SpringApplication.run(MsProviderUserMysqlJdbcTransactionalApplication.class, args);
        System.out.println("【【【【【【 链接MysqlJdbcTransactional数据库微服务 】】】】】】已启动.");
    }
}

/****************************************************************************************
 一、简单用户链接Mysql数据库微服务（通过JdbcTemplate编写数据访问，而且支持事物处理机制，使用 rollbackFor 属性，数据回滚）：

 1、给 insertUser 方法添加注解：@Transactional(propagation = Propagation.REQUIRED, isolation= Isolation.DEFAULT, rollbackFor = Exception.class)；
 2、insertUser 抛出 RollbackExceptionExtendsRuntimeException 异常；
 3、启动 springms-provider-user-mysql-jdbctemplate-transactional 模块服务，启动1个端口；
 4、在浏览器输入地址 http://localhost:8315/simplejdbc/list 可以看到所有用户信息成功的被打印出来；

 5、使用 REST Client 执行 "/simplejdbc/insertUser" 添加参数执行接口，结果数据没有入库，数据被回滚了；
 ****************************************************************************************/

/****************************************************************************************
 二、简单用户链接Mysql数据库微服务（通过JdbcTemplate编写数据访问，而且支持事物处理机制，使用 noRollbackFor 属性，数据回滚）：

 1、给 replaceUser 方法添加注解：@Transactional(noRollbackFor = BusinessExtendsException.class)；
 2、replaceUser 抛出 RuntimeException 异常；
 3、启动 springms-provider-user-mysql-jdbctemplate-transactional 模块服务，启动1个端口；
 4、在浏览器输入地址 http://localhost:8315/simplejdbc/list 可以看到所有用户信息成功的被打印出来；

 5、使用 REST Client 执行 "/simplejdbc/replaceUser" 添加参数执行接口，结果数据没有入库，数据被回滚了；
 ****************************************************************************************/

/****************************************************************************************
 三、简单用户链接Mysql数据库微服务（通过JdbcTemplate编写数据访问，而且支持事物处理机制，使用 noRollbackFor 属性，数据没有回滚）：

 1、给 replaceUser 方法添加注解：@Transactional(noRollbackFor = BusinessExtendsException.class)；
 2、replaceUser 抛出 BusinessSubExtendsException 异常；
 3、启动 springms-provider-user-mysql-jdbctemplate-transactional 模块服务，启动1个端口；
 4、在浏览器输入地址 http://localhost:8315/simplejdbc/list 可以看到所有用户信息成功的被打印出来；

 5、使用 REST Client 执行 "/simplejdbc/replaceUser" 添加参数执行接口，结果数据已经入库了，数据没有回滚了；

 注意：如果要使得 noRollbackFor 属性生效，注解中 @Transactional 必须得只有 noRollbackFor 属性，然后 noRollbackFor 的异常必须得是自己定义的异常，然后抛 RuntimeException 异常，这样我们才可以测出 noRollbackFor 回滚与不回滚的场景出来；
 ****************************************************************************************/

/****************************************************************************************
 四、简单用户链接Mysql数据库微服务（通过JdbcTemplate编写数据访问，而且支持事物处理机制，同时操作多个DAO文件入库，然后选择注解是否进行回滚数据）：

 这里就不做多的解释了，MovieServiceImpl 就是操作多个DAO文件入库，然后处理是否回滚数据的。

 注意：如果要使得 noRollbackFor 属性生效，注解中 @Transactional 必须得只有 noRollbackFor 属性，然后 noRollbackFor 的异常必须得是自己定义的异常，然后抛 RuntimeException 异常，这样我们才可以测出 noRollbackFor 回滚与不回滚的场景出来；

 rollbackFor 属性：抛出的异常是 rollbackFor 异常的子类时都会回滚数据；
 noRollbackFor 属性：抛出的异常是 noRollbackFor 异常的子类时不会回滚数据；抛出的异常不是 noRollbackFor 异常的子类时会回滚数据；
 ****************************************************************************************/

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