spring boot: spring boot+jdbctemplate+sql server

Posted 2020-09-26 歪头儿在帝都

前言

       小项目或者做demo时可以使用jdbc+sql server解决即可，这篇就基于spring boot环境使用jdbc连接sql server数据库，和spring mvc系列保持一致。 在spring boot中使用jdbc 连接sql server数据只需要引入两个jar：spring-boot-starter-jdbc、spring-boot-starter-data-jpa

 

项目结构

     和上篇spring boot入门保持相同

 

pom.xml

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <!--<exclusions>-->
            <!--<exclusion>-->
                <!--<groupId>org.springframework.boot</groupId>-->
                <!--<artifactId>spring-boot-starter-tomcat</artifactId>-->
            <!--</exclusion>-->
        <!--</exclusions>-->
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-cache</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jdbc</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
        <version>1.5.4.RELEASE</version>
    </dependency>
   
</dependencies>

 

Application.java、Dao、Service、model

1、Application.java

@SpringBootApplication(scanBasePackages = "com.autohome")
public class Application extends SpringBootServletInitializer{

    public static void main(String[] args){
        System.out.println("server is running at 8080....");
        SpringApplication.run(Application.class,args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(Application.class);
    }
}

 

2、Dao

package com.autohome.dao;

import com.autohome.model.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.PreparedStatementSetter;
import org.springframework.stereotype.Repository;

import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Types;
import java.util.List;


@Repository
public class UserDao {

    @Autowired
    JdbcTemplate jdbcTemplate;

    public List<User> listAllUser() {
        List<User> list = jdbcTemplate.query("select * from t_userinfo",new User());
        return list;
    }

    public int insertUser(final User user) {
        int result = jdbcTemplate.update("insert into t_userinfo (name,address) VALUES (?,?)", new PreparedStatementSetter() {
            public void setValues(PreparedStatement ps) throws SQLException {
                ps.setString(1,user.getName());
                ps.setString(2,user.getAddress());
            }
        });

        return result;
    }

    public int updateUser(final User user) {
        int result = jdbcTemplate.update("UPDATE t_userinfo set name=?,address=? where id=?", new PreparedStatementSetter() {
            public void setValues(PreparedStatement ps) throws SQLException {
                ps.setString(1,user.getName());
                ps.setString(2,user.getAddress());
                ps.setInt(3,user.getId());
            }
        });

        return result;
    }

    public int deleteUser(int id) {
        int result = jdbcTemplate.update("delete from t_userinfo where id=?",new Object[]{id},new int[]{Types.INTEGER});
        return result;
    }
}

3、Service

package com.autohome.service;

import com.autohome.dao.UserDao;
import com.autohome.model.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;



@Service
public class UserService {

    @Autowired
    UserDao userDao;

    public List<User> listAllUser(){
        return userDao.listAllUser();
    }

    public int insertUser(User user){
        return userDao.insertUser(user);
    }

    public int updateUser(User user){
        return userDao.updateUser(user);
    }

    public int deleteUser(int id){
        return userDao.deleteUser(id);
    }

}

4、Controller

package com.autohome.controller;

import com.autohome.model.User;
import com.autohome.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.List;

/**
 * Created by zhangfei on 2017/6/22.
 */
@Controller
@RequestMapping("/user")
public class UserController {


    @ResponseBody
    @RequestMapping("/detail")
    public  User detail(Integer id){
        User user=new User();
        user.setId(id);
        user.setName("zhangsan");
        user.setAddress("china");
        return user;
    }

    @Autowired
    UserService userService;

    @ResponseBody
    @RequestMapping("/list")
    public List<User> list(){
        List<User> list = userService.listAllUser();
        System.out.println("size:"+list.size());
        return list;
    }

    @RequestMapping(value="/insert",method = RequestMethod.POST)
    public String insertUser(String name,String address){
        User user =new User();
        user.setName(name);
        user.setAddress(address);

        int result = userService.insertUser(user);
        if(result>0){
            return "{\"returncode\":0,\"message\":\"success\"}";
        }else{
            return "{\"returncode\":0,\"message\":\"error\"}";
        }

    }


}