Springboot整合Mybatis

程序员文章站 2024-01-26 12:44:52

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1:项目目录结构

Springboot整合Mybatis

2 :pom.xml配置

<?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>com.springbmybatis</groupId>
	<artifactId>MySpringBootMyBatis</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>MySpringBootMyBatis</name>
	<description>Demo project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.14.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jdbc</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-thymeleaf</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>1.3.2</version>
		</dependency>

		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.8</version><!--$NO-MVN-MAN-VER$-->
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		
		<dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.datatype</groupId>
            <artifactId>jackson-datatype-joda</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.module</groupId>
            <artifactId>jackson-module-parameter-names</artifactId>
            <version>2.9.6</version><!--$NO-MVN-MAN-VER$-->
        </dependency>
	</dependencies>
	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

3:application.yml配置

server:
  port: 8080
  context-path: /springbootMybatis 
spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/ssm?characterEncoding=utf8
    username: root
    password: mysql

mybatis:
  mapperLocations: classpath:/mapper/UserMapper.xml
  typeAliasesPackage: com.springbmybatis.entity

4:UserMapper.xml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.springbmybatis.mapper.UserMapper">
	
	<resultMap type="com.springbmybatis.entity.User" id="UserMap" autoMapping="true">
		<id column="id" property="id"/>
		<result column="name" property="name"/>
		<result column="password" property="password"/>
		<result column="sex" property="sex"/>
		<result column="job" property="job"/>
		<result column="birthday" property="birthday"/>
		<result column="salary" property="salary"/>
	</resultMap>
	
	<!-- 添加用户 -->
	<insert id="addUser" parameterType="User">
		insert into t_user
		(id,birthday,job,name,password,salary,sex)
		values (#{id},#{birthday},#{job},#{name},#{password},#{salary},#{sex})
	</insert>

	<!-- 根据id查询用户 -->
	<select id="findUserById" parameterType="java.lang.Integer" resultMap="UserMap">
		SELECT * FROM t_user WHERE id=#{id}
	</select>

	<!-- 用户信息列表 -->
	<select id="listUser" resultType="com.springbmybatis.entity.User">
		SELECT * FROM t_user
	</select>
	
</mapper>

5:启动类

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@MapperScan("com.springbmybatis.mapper")
public class MySpringBootMyBatisApplication {

	public static void main(String[] args) {
		SpringApplication.run(MySpringBootMyBatisApplication.class, args);
	}
}

6:controller

import java.util.List;
import javax.annotation.Resource;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import com.springbmybatis.entity.User;
import com.springbmybatis.service.UserService;

@RestController
public class UserController {

	@Resource
	private UserService userService;
	
	@GetMapping(value="/findUserById/{id}")
	public User findUserById(@PathVariable("id") Integer userId) {
		return userService.findUserById(userId);
	}
	
	@GetMapping(value="/addUser")
	public void addUser(User user) {
		userService.addUser(user);
	}

	@GetMapping(value="/findAllUser")
	public List<User> findAllUser(){
		return userService.findAllUser();
	}
	
}

7:service

import java.util.List;
import com.springbmybatis.entity.User;

public interface UserService {

	public void addUser(User user);

	public User findUserById(Integer id);

	public List<User> findAllUser();
}

import java.util.List;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.springbmybatis.entity.User;
import com.springbmybatis.mapper.UserMapper;
import com.springbmybatis.service.UserService;

@Service
public class UserServiceImple implements UserService{
	
	@Resource
	private UserMapper userMapper;
	
	@Override
	public void addUser(User user) {
		userMapper.addUser(user);
	}

	@Override
	public User findUserById(Integer id) {
		return userMapper.findUserById(id);
	}

	@Override
	public List<User> findAllUser() {
		return userMapper.listUser();
	}

}

8:Mapper

import java.util.List;
import com.springbmybatis.entity.User;

public interface UserMapper {
	
	public void addUser(User user);

	public User findUserById(Integer id);

	public List<User> listUser();
}

9:实体类

public class User implements Serializable{
	private static final long serialVersionUID = -5105237253493472875L;
	private Integer id;
	private String name;
	private String password;
	private String sex;
	private String job;
	private String birthday;
	private Double salary;
	
	public User() {
		super();
	}
	public User(Integer id) {
		super();
		this.id = id;
	}
	
	public User(Integer id, String name, String password, String sex,
			String job, String birthday, Double salary) {
		super();
		this.id = id;
		this.name = name;
		this.password = password;
		this.sex = sex;
		this.job = job;
		this.birthday = birthday;
		this.salary = salary;
	}

	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public String getSex() {
		return sex;
	}
	public void setSex(String sex) {
		this.sex = sex;
	}
	public String getJob() {
		return job;
	}
	public void setJob(String job) {
		this.job = job;
	}
	public String getBirthday() {
		return birthday;
	}
	public void setBirthday(String birthday) {
		this.birthday = birthday;
	}
	public Double getSalary() {
		return salary;
	}
	public void setSalary(Double salary) {
		this.salary = salary;
	}
}

10:表

CREATE TABLE `t_user` (
   `id` int(4) NOT NULL AUTO_INCREMENT,
   `name` char(20) DEFAULT NULL,
   `password` char(20) DEFAULT NULL,
   `sex` char(6) DEFAULT NULL,
   `job` char(20) DEFAULT NULL,
   `birthday` char(20) DEFAULT NULL,
   `salary` char(20) DEFAULT NULL,
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8

11:启动访问

http://127.0.0.1:8080/springbootMybatis/findUserById/1 --查询单条

Springboot整合Mybatis