springboot配置mybatis

1、引入依赖

<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>2.2.1</version>
		</dependency>

2、配置文件

1、实体类

package com.example.demo.entity;

public class User {
    private Integer id;
    private String name;
    private String password;
    private String sex;
    private String email;
    private String qq;


    public User(Integer id, String name, String password, String sex, String email, String qq) {
        this.id = id;
        this.name = name;
        this.password = password;
        this.sex = sex;
        this.email = email;
        this.qq = qq;
    }

    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 getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getQq() {
        return qq;
    }

    public void setQq(String qq) {
        this.qq = qq;
    }
}

2、接口类

package com.example.demo.mapper;

import com.example.demo.entity.User;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

import java.util.List;

@Mapper
@Repository
public interface UserMapping {
    public List<User> getAllUser();
}

3、mybatis映射文件

<?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.example.demo.mapper.UserMapping">
    <select id="getAllUser" resultType="com.example.demo.entity.User">
        select * from user
    </select>
</mapper>

3、配置mybatis文件（application.yaml）

（1）接口及其实体类路径

mybatis:
  mapper-locations: classpath:mybatis/*.xml
  type-aliases-package: com.example.demo.entity

4、controller调用

package com.example.demo.controller;

import com.example.demo.entity.User;
import com.example.demo.mapper.UserMapping;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.sql.DataSource;
import java.util.List;

@RestController
public class UserController {
    @Autowired
    UserMapping userMapping;

    @GetMapping("/Alluser")
    public List<User> getAllUser(){
        List<User> allUser = userMapping.getAllUser();
        return allUser;
    }
}

5、访问路径及其显示

http://localhost:8080/Alluser