标签：demo spring boot User import mybatis org com public
使用spring boot + mybatis 开发简单的增删改查服务
整体文件目录结构：
pom.xml内容：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.xin</groupId>
<artifactId>20220621</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
<artifactId>spring-boot-starter-parent</artifactId>
<groupId>org.springframework.boot</groupId>
<version>2.2.1.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.3</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.2.5</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.18</version>
</dependency>
</dependencies>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
</project>
application.yml内容：
server:
port: 8002
spring:
datasource:
url: jdbc:mysql://localhost:3306/demo?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&useSSL=false
username: demo_user
password: demo12356
driver-class-name: com.mysql.jdbc.Driver
type: com.alibaba.druid.pool.DruidDataSource
mybatis:
mapper-locations: classpath:mapper/*.xml
type-aliases-package: com.demo.model
User.xml (增删改查映射配置)
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.demo.dao.UserDao">
<resultMap id="BaseResultMap" type="com.demo.model.User">
<id column="userid" jdbcType="INTEGER" property="userid"/>
<result column="username" jdbcType="VARCHAR" property="username"/>
<result column="password" jdbcType="VARCHAR" property="password"/>
</resultMap>
<select id="getlist" resultMap="BaseResultMap">
select userid, username,password from userlogin
</select>
<insert id="add" parameterType="com.demo.model.User">
insert into userlogin(username,password) values(#{username},#{password})
</insert>
<update id="update" parameterType="com.demo.model.User">
update userlogin
set username = #{username},password = #{password}
where userid = #{userid}
</update>
<select id="queryById" resultMap="BaseResultMap">
select userid, username,password from userlogin
where userid = #{userid}
</select>
</mapper>
主入口启动文件：AppMain.java
package com.demo;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
//@MapperScan("com.demo.dao")
public class AppMain {
public static void main(String[] args) {
SpringApplication.run(AppMain.class, args);
}
}
接口文件：IUserService
package com.demo.service;
import com.demo.model.User;
import java.util.List;
public interface IUserService {
User queryById(Integer id);
boolean add(User user);
boolean update(User user);
List<User> getlist();
}
服务文件：UserService.java
package com.demo.service.impl;
import com.demo.dao.UserDao;
import com.demo.model.User;
import com.demo.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class UserService implements IUserService {
@Autowired
private UserDao userDao;
public User queryById(Integer id) {
return userDao.queryById(id);
}
public boolean add(User user){
return userDao.add(user);
}
public boolean update(User user){
return userDao.update(user);
}
public List<User> getlist(){
return userDao.getlist();
}
}
User实体类：User
package com.demo.model;
import lombok.Data;
import java.util.Date;
@Data
public class User {
private Integer userid;
private String password;
private String username;
}
DAO:UserDao
package com.demo.dao;
import com.demo.model.User;
import org.apache.ibatis.annotations.Mapper;
import java.util.List;
@Mapper
public interface UserDao {
User queryById(Integer userid);
boolean add(User user);
boolean update(User user);
List<User> getlist();
}
API接口：UserController
package com.demo.controller;
import com.demo.model.User;
import com.demo.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
@RestController
@RequestMapping(value="/user")
public class UserController {
@Autowired
private IUserService userService;
@GetMapping(value = "/queryById")
public User queryById(int userid) {
return userService.queryById(userid);
}
@GetMapping(value="getlist")
public List<User> getlist(){
return userService.getlist();
}
@PostMapping(value = "/add")
public boolean addUser(User user){
return userService.add(user);
}
@PostMapping(value = "update")
public boolean updateUser(User user){
return userService.update(user);
}
}
标签：demo,spring,boot,User,import,mybatis,org,com,public 来源： https://www.cnblogs.com/microsoft-xin/p/16397735.html
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