spring boot 集成mybatis

最新推荐文章于 2025-09-13 09:06:35 发布

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最新推荐文章于 2025-09-13 09:06:35 发布

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文章标签： java python

原文链接：https://my.oschina.net/u/2528821/blog/1616598

本文介绍如何使用Spring Boot搭建简易应用，并结合MyBatis实现数据库操作。具体包括pom.xml配置、App启动类编写、实体Bean定义、DAO层接口设计及控制器实现。

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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>

    <groupId>springws</groupId>
    <artifactId>springws</artifactId>
    <version>1.0-SNAPSHOT</version>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.3.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>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
        </dependency>
        
        
        <dependency>
         <groupId>mysql</groupId>
         <artifactId>mysql-connector-java</artifactId>
         <scope>runtime</scope>
      	    </dependency>
      	
      	<dependency>
    		<groupId>org.mybatis.spring.boot</groupId>
    		<artifactId>mybatis-spring-boot-starter</artifactId>
    		<version>1.1.1</version>
	</dependency>
      
    </dependencies>

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


</project>

创建App.java

package com.ws;


import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;


@SpringBootApplication
public class App {
    public static void main(String ... args){
        SpringApplication.run(App.class,args);
    }
}

创建bean

package com.ws.bean;

public class Course{
	//对应的表的字段
	private Integer id;
	
	private String name;
	
	private Integer uid;
	
	private String code;
	
	private Long time;

	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 getUid() {
		return uid;
	}

	public void setUid(Integer uid) {
		this.uid = uid;
	}

	public String getCode() {
		return code;
	}

	public void setCode(String code) {
		this.code = code;
	}

	public Long getTime() {
		return time;
	}

	public void setTime(Long time) {
		this.time = time;
	}

	@Override
	public String toString() {
		return "Course [id=" + id + ", name=" + name + ", uid=" + uid + ", code=" + code + ", time=" + time + "]";
	}
	
}

创建DAO

package com.ws.repository;

import com.ws.bean.Course;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository("courseDao")
@Mapper
public interface CourseDao {
	@Select("select * from ccvms_course where id = #{id} ")
	List<Course> findById(@Param("id") Integer id);
}

@Mapper注解必须是1.1.1版本以上的mybatis-spring-boot-starter才有

创建测试的controller

package com.ws.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import com.ws.bean.Course;
import com.ws.repository.CourseDao;


@RestController
public class IndexController {
	
    private final CourseDao courseDao;

    @Autowired
    public IndexController(CourseDao courseDao) {
        this.courseDao = courseDao;
    }

    @GetMapping("/")
    public List<Course> index(){
        return courseDao.findById(10);
    }
}

转载于:https://my.oschina.net/u/2528821/blog/1616598