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: 8088spring:datasource:driver-class-name: com.mysql.cj.jdbc.Driverurl: jdbc:mysql://127.0.0.1:3306/ssm_db?serverTimezone=Asia/Shanghaiusername: rootpassword: 123456type: com.alibaba.druid.pool.DruidDataSourceinitialSize: 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 {@AutowiredJdbcTemplate jdbcTemplate;@Transactionalpublic 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 {@AutowiredLoginDao 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 {@AutowiredLoginService loginService;@RequestMapping("/login/")public void Login(){loginService.test();System.out.println("success");}
}