1，pom.xml配置jar包

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>

2，配置数据源信息 

server:
  port: 8088

spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://127.0.0.1:3306/ssm_db?serverTimezone=Asia/Shanghai
    username: root
    password: 123456
    type: com.alibaba.druid.pool.DruidDataSource
    initialSize: 5 #初始化时建立物理连接的个数
    minIdle: 1 #最小连接池数量
    maxActive: 20 #最大连接池数量

 

LoginDao.java

package com.ffyc.news.dao;

import com.ffyc.news.model.Admin;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

@Repository
public class LoginDao {
    @Autowired
    JdbcTemplate jdbcTemplate;
    @Transactional
    public void intsert(){
        jdbcTemplate.update("insert into admin(account,pwd) value (?,?)","王五","5555");
        System.out.println(10/0);
        jdbcTemplate.update("insert into admin(account,pwd) value (?,?)","ikun","666");
    }
}

LoginService.java

package com.ffyc.news.service;

import com.ffyc.news.dao.LoginDao;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class LoginService {
    @Autowired
    LoginDao loginDao;
    public void test(){
        loginDao.intsert();
    }
}

LoginController.java

package com.ffyc.news.web;

import com.ffyc.news.service.LoginService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/admin/login/")
public class LoginController {
    @Autowired
    LoginService loginService;
    @RequestMapping("/login/")
    public void Login(){
        loginService.test();
        System.out.println("success");
    }
}