用IDEA SpringBoot整合Mybatis代码

项目整体框架：

 

 

pom.xml：

<?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>2.1.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.baibing</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
       <!--<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.0</version>
        </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>2.0.1</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
            <version>5.1.34</version>
        </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>
        <!--解决idea构建项目时，target/classes目录下不存在mapper.xml文件 -->
        <resources>
            <resource>
                <directory>${basedir}/src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.yml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
    </build>

</project>

 

 

启动类:

package com.baibing.demo;

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

@MapperScan("com.baibing.demo.dao")
@SpringBootApplication
@ComponentScan("com.baibing.demo")
public class DemoApplication {

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

}

配置文件，url 用户名 密码自己填写

server:
  port: 8081

spring:
    datasource:
        name: test
        url: 
        username: 
        password:
        driver-class-name: com.mysql.jdbc.Driver
mybatis:
  mapper-locations: com/baibing/demo/mapper/*.xml

 

entity：

/**
 * 
 */
package com.baibing.demo.entity;

/**
 * @ClassName:
 * @Description:	
 * @author:bing.bai
 * date:
 */
public class User {
    private String userName;
    
    private String password;

    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;
    }
}

 

 

dao :

/**
 * 
 */
package com.baibing.demo.dao;


import com.baibing.demo.entity.User;


/**
 * @ClassName:
 * @Description:	
 * @author:bing.bai
 * date:
 */

public interface userDao {

    User getUserByName(String name);
}

 

 

controller：

/**
 * 
 */
package com.baibing.demo.controller;



import javax.annotation.Resource;


import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.baibing.demo.dao.userDao;
import com.baibing.demo.entity.User;



/**
 * @ClassName:
 * @Description:
 * @author:bing.bai date:
 */

@Controller
@RequestMapping("/test")
public class TestController {
    
    
    @Resource
    userDao userdao;
    

    @RequestMapping("/getUser")
    @ResponseBody
    public User  getUser(@RequestBody String params) {
        User userByName = userdao.getUserByName("baibing");
        return userByName;
    }



}

 

 

结果：