Spring Boot 整合mybatis

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创建项目 pom.xml中添加依赖

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<?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.caicai</groupId>
	<artifactId>12-spring-boot-springmvc-mybatis</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>12-spring-boot-springmvc-mybatis</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-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>2.0.0</version>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.8</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

</project>

创建application.yml

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spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    username: root
    password: 123456
    url: jdbc:mysql://localhost:3306/ssm
    type: com.alibaba.druid.pool.DruidDataSource
mybatis:
  type-aliases-package: com.caicai.springbootspringmvcmybatis.pojo
  mapper-locations: classpath:mapper/*.xml

创建Users类

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package com.caicai.springbootspringmvcmybatis.pojo;

public class Users {

    private Integer id;
    private String name;
    private Integer age;

    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 Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}

创建Controller

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package com.caicai.springbootspringmvcmybatis.controller;

import com.caicai.springbootspringmvcmybatis.pojo.Users;
import com.caicai.springbootspringmvcmybatis.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

/**
 * @author liu
 * @title: Controller
 * @projectName 12-spring-boot-springmvc-mybatis
 * @description: TODO
 * @date 2019/3/3113:01
 */
@Controller
@RequestMapping("/users")
public class UserController {
    @Autowired
    private UserService userService;
    @RequestMapping("/{page}")
    public String showPage(@PathVariable String page){
        return page;
    }
    @RequestMapping("/addUser")
    @ResponseBody
    public String addUser(Users user){
        userService.addUser(user);
        return "success";
    }
}

创建 UserMapper接口和UsersMapper.xml(创建路径在resources/mapper下)

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package com.caicai.springbootspringmvcmybatis.mapper;


import com.caicai.springbootspringmvcmybatis.pojo.Users;

public interface UsersMapper {
	
	void insertUser(Users users);
}

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<?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.caicai.springbootspringmvcmybatis.mapper.UsersMapper">
	<insert id="insertUser" parameterType="users">
		insert into users(name,age) values(#{name},#{age})
	</insert>
</mapper>

创建Service

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package com.caicai.springbootspringmvcmybatis.service;

import com.caicai.springbootspringmvcmybatis.pojo.Users;

/**
 * @author liu
 * @title: UserService
 * @projectName 12-spring-boot-springmvc-mybatis
 * @description: TODO
 * @date 2019/3/3112:16
 */
public interface UserService {
    void addUser(Users users);
}

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package com.caicai.springbootspringmvcmybatis.service;

import com.caicai.springbootspringmvcmybatis.mapper.UsersMapper;
import com.caicai.springbootspringmvcmybatis.pojo.Users;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

/**
 * @author liu
 * @title: UserServiceImpl
 * @projectName 12-spring-boot-springmvc-mybatis
 * @description: TODO
 * @date 2019/3/3112:25
 */
@Service
@Transactional
public class UserServiceImpl implements  UserService{
    @Autowired
    private UsersMapper usersMapper;
    @Override
    public void addUser(Users users) {
        this.usersMapper.insertUser(users);
    }
}

创建page.html

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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form th:action="@{/users/addUser}" method="post">
用户姓名<input type="text" name="name"><br>
用户年龄<input type="text" name="age"><br>
<input type="submit" th:value="确定"><br>

</form>

</body>
</html>

创建启动类:

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package com.caicai.springbootspringmvcmybatis;

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

@SpringBootApplication
@MapperScan("com.caicai.springbootspringmvcmybatis.mapper")
public class Application {

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

}