【SpringBoot】整合Mybatis

#对象的配置
person:
  name: zhangsan
  age: 18
  addr: beijing

package com.itheima.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@ConfigurationProperties(prefix = "person")//自动去找Person开头的匹配
public class Quick3Controller {

    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAddr() {
        return addr;
    }

    public void setAddr(String addr) {
        this.addr = addr;
    }

    private String addr;

    @RequestMapping("/quick3")
    @ResponseBody
    public String quick3(){
        //获得配置文件的信息
        System.out.println(name);
        return "name:"+name+",addr="+addr;
    }
}

   @Value("${projectStatusBegin}")
    private int projectStatusBegin;

        <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>1.1.1</version>
    </dependency>
    添加数据库驱动坐标
    <!--MySQL连接驱动-->
    <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    </dependency>

  #数据库连接信息
    spring.datasource.driver.driverClassName=com.mysql.jdbc.Driver
    spring.datasource.url=jdbc:mysql://127.0.0.1:3306/e3mall?useUnicode=true&characterEncoding=utf8
    spring.datasource.username=e3mall
    spring.datasource.password=123456

-- ----------------------------
-- Table structure for `user`
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(50) DEFAULT NULL,
  `password` varchar(50) DEFAULT NULL,
  `name` varchar(50) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8;
    -- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('1', 'zhangsan', '123', '张三');
INSERT INTO `user` VALUES ('2', 'lisi', '123', '李四');

package com.itheima.domain;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

@Entity
public class User {
    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    // 主键
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    // 用户名
    private String username;
    // 密码
    private String password;
    // 姓名
    private String name;

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", password='" + password + '\'' +
                ", name='" + name + '\'' +
                '}';
    }
}

<?xmlversion="1.0"encoding="utf-8"?>
    <!DOCTYPEmapperPUBLIC"-//mybatis.org//DTDMapper3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd">
    <mappernamespace="com.itheima.mapper.UserMapper">
    <selectid="queryUserList"resultType="user">
    select*fromuser
    </select>
    </mapper>

   #spring集成Mybatis环境
    #pojo别名扫描包
    mybatis.type-aliases-package=com.itheima.domain
    #加载Mybatis映射文件
    mybatis.mapper-locations=classpath:mapper/*Mapper.xml

  @Controller
  publicclassMybatisController{
  
  
  @Autowired
  privateUserMapperuserMapper;
  
  @RequestMapping("/query")
  @ResponseBody
  publicList<User>queryUserList(){
  List<User>users=userMapper.queryUserList();
  returnusers;
  }
  
  }