版权声明:java洪君 https://blog.csdn.net/qq_43532342/article/details/88884598
jdbc 可不选
/*
Navicat MySQL Data Transfer
Source Server : hc
Source Server Version : 50642
Source Host : localhost:3306
Source Database : cn
Target Server Type : MYSQL
Target Server Version : 50642
File Encoding : 65001
Date: 2019-03-29 10:24:51
*/
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for `user`
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
`userId` int(11) NOT NULL AUTO_INCREMENT,
`userName` varchar(255) DEFAULT NULL,
PRIMARY KEY (`userId`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('1', '唐三');
INSERT INTO `user` VALUES ('2', '小舞');
INSERT INTO `user` VALUES ('3', '慕白');
INSERT INTO `user` VALUES ('4', '血衣');
<?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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.hc</groupId>
<artifactId>hc</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>hc</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<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>2.0.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
jdbc 不加入,正常运行
package com.hc.model;
/**
* Created by Administrator on 2019/3/29 0029.
*/
public class User {
private Integer userId;
private String userName;
public User() {
}
public User(Integer userId, String userName) {
this.userId = userId;
this.userName = userName;
}
public Integer getUserId() {
return userId;
}
public void setUserId(Integer userId) {
this.userId = userId;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
}
package com.hc.mapper;
import org.apache.ibatis.annotations.Mapper;
import java.util.List;
/**
* Created by Administrator on 2019/3/29 0029.
*/
@Mapper
public interface UserMapper {
List selectUserPage();
}
<?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.hc.mapper.UserMapper">
<select id="selectUserPage" resultType="com.hc.model.User">
SELECT * FROM `user`
</select>
</mapper>
package com.hc.service;
import java.util.List;
/**
* Created by Administrator on 2019/3/29 0029.
*/
public interface UserService {
List selectUserPage();
}
package com.hc.service.impl;
import com.hc.mapper.UserMapper;
import com.hc.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/**
* Created by Administrator on 2019/3/29 0029.
*/
@Service
public class UserImpl implements UserService{
@Autowired
private UserMapper userMapper;
@Override
public List selectUserPage() {
return userMapper.selectUserPage();
}
}
package com.hc.ip;
import com.hc.model.User;
import com.hc.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
/**
* Created by Administrator on 2019/3/29 0029.
*/
@RestController
public class CloudIp {
@Autowired
private UserService userService;
@RequestMapping("/go")
public String getCloud(){
return "hi,boss!";
}
@RequestMapping("/")
public List<User> userList(){
return userService.selectUserPage();
}
}
server:
port: 8081
servlet:
context-path: /
spring:
datasource:
username: root
url: jdbc:mysql://127.0.0.1:3306/cn?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false
password: root
driver-class-name: com.mysql.cj.jdbc.Driver
mybatis:
type-aliases-package: com.hc.model
mapper-locations: classpath:/data/*Mapper.xml
logging:
level:
com.hc.mapper: debug