pom 文件
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>mycode</groupId>
<artifactId>web</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>web Maven Webapp</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.5.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>junit</groupId>
<artifactId>junit</artifactId>
<version>4.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.0</version>
</dependency>
<!-- MyBatis -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.1.1</version>
</dependency>
</dependencies>
<build>
<finalName>web</finalName>
</build>
</project>
配置文件
mybatis.type-aliases-package=com.xyh.po
mybatis.mapper-locations=classpath:com/xyh/mapper/*.xml
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/xyh?useUnicode=true
spring.datasource.username=root
spring.datasource.password=
mapper
<?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">
<!-- 指定工作空间,要与接口名相同,源代码没有去看,猜测应该是通过"这里的namespace.下边方法的id"来定位方法的 -->
<mapper namespace="com.xyh.dao.UserMapper">
<!-- insert user -->
<insert id = "insert" parameterType="com.xyh.po.User">
INSERT INTO USER(ID,USERNAME,PASSWORD,AGE) VALUES(#{id},#{username},#{password},#{age});
</insert>
<!-- update user -->
<update id="update" parameterType="com.xyh.po.User">
UPDATE USER SET USERNAME=#{username} , PASSWORD=#{password} , AGE = #{age} WHERE ID=#{id}
</update>
<!-- find user -->
<select id="find" parameterType="int" resultType="com.xyh.po.User">
SELECT ID,USERNAME,PASSWORD,AGE FROM USER WHERE ID=#{0}
</select>
<!-- delete user -->
<delete id="delete" parameterType="int">
DELETE FROM USER WHERE ID=#{0}
</delete>
</mapper>
package com.xyh.po;
public class User {
private int id;
private String username;
private String password;
private int age;
public int getId() {
return id;
}
public void setId(int 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 int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
package com.xyh.dao;
import com.xyh.po.User;
public interface UserMapper {
public void insert(User user);
public void update(User user);
public void delete(int id);
public User find(int id);
}
package com.xyh.service;
import com.xyh.po.User;
public interface UserIService {
public void insert(User user);
public void update(User user);
public User find(int id);
public void delete(int id);
}
package com.xyh.controller;
import javax.annotation.Resource;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.ModelAndView;
import com.xyh.po.User;
import com.xyh.service.imp.UserService;
@RestController
@RequestMapping("/user")
public class UserController {
@Resource
private UserService userService;
@RequestMapping("/say")
public String say(){
return "springboot-a"+userService;
}
@RequestMapping("/insertuser")
public void insertuser() {
User user = new User();
user.setAge(11);
user.setId(1);
user.setUsername("xyh");
user.setPassword("1234");
userService.insert(user);
}
@RequestMapping("/find")
public String find(){
User user = userService.find(18);
ModelAndView mav = new ModelAndView();
mav.addObject("user","sadf");
return "HelloWord"+"fasdf--"+user.getUsername()+"--"+user.getPassword();
}
@RequestMapping("/ajax")
public String find1(){
return "[''message':'123dfx']";
}
}