Springboot 配置mybatis

痛定思痛。 2022-06-03 05:48 161阅读 0赞

**本人使用maven创建的项目:**

**首先添加依赖:**

<dependency>
        <groupId>org.mybatis.spring.boot</groupId>
        <artifactId>mybatis-spring-boot-starter</artifactId>
        <version>1.3.1</version>
    </dependency>

**然后创建一个实体类:**

package cn.et.lesson02.entity;
    
    public class Food {
    	
    	
    	private int foodid;
    
    	private String foodname;
    
    	private int price;
    	
    	private String imgpath;
    	public int getFoodid() {
    		return foodid;
    	}
    	public void setFoodid(int foodid) {
    		this.foodid = foodid;
    	}
    	public String getFoodname() {
    		return foodname;
    	}
    	public void setFoodname(String foodname) {
    		this.foodname = foodname;
    	}
    	public int getPrice() {
    		return price;
    	}
    	public void setPrice(int price) {
    		this.price = price;
    	}
    	public String getImgpath() {
    		return imgpath;
    	}
    	public void setImgpath(String imgpath) {
    		this.imgpath = imgpath;
    	}
    	
    }

**然后创建Controller层:**

package cn.et.lesson02.controller;
    import java.util.List;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import cn.et.lesson02.entity.Food;
    import cn.et.lesson02.mapper.FoodMapper;
    
    @RestController
    public class SbController {
    	 
    	 @Autowired
    	 FoodMapper fm ;
    	 /**
    	  * 使用springmvc的例子
    	  * @return
    	  */
    	 
    	 @RequestMapping("/queryAll")
    	 public List<Food> queryAll(){
    		 return fm.queryFood();
    	 }	
    }

**最后创建 主方法 和 访问主方法:**

package cn.et.lesson02;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    //必须添加SpringBootApplication 启用spring的自动配置功能
    @SpringBootApplication
    public class Main {
    
    	/**
    	 * just run springboot启动的方法
    	 */
    	
    	public static void main(String[] args) {
    		//启动会加载自动配置 
    		 SpringApplication.run(Main.class, args);
    	} 
    }