Mybatis中使用万能的Map传参实现

package com.pojo.pp1;
 
import java.math.BigDecimal;
 

public class fruits {
    private int id;
    private String name;
    private BigDecimal price;
 
    public fruits(int id, String name, BigDecimal price) {
        this.id = id;
        this.name = name;
        this.price = price;
    }
 
    public int getId() {
        return id;
    }
 
    public void setId(int id) {
        this.id = id;
    }
 
    public String getName() {
        return name;
    }
 
    public void setName(String name) {
        this.name = name;
    }
 
    public BigDecimal getPrice() {
        return price;
    }
 
    public void setPrice(BigDecimal price) {
        this.price = price;
    }
 
    @Override
    public String toString() {
        return "fruits{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", price=" + price +
                '}';
    }
}

package com.pojo.Dao;
 
import com.pojo.pp1.fruits;
import org.apache.ibatis.annotations.Param;
 
import java.util.List;
import java.util.Map;

public interface fruitsDao {
    
    List<fruits> getfruitsList();
 
    
    fruits getfruitsById(@Param("map") Map<String, Object> map);
 
    
    int addfruits(@Param("map") Map<String, Object> map);
 
    
    int deletefruits(@Param("map") Map<String, Object> map);
 
    
    int updatefruits(@Param("map") Map<String, Object> map);
}

<?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.pojo.Dao.fruitsDao">
    <select id="getfruitsList" resultType="fruits">
        select id,name,price from fruits
    </select>
 
    <select id="getfruitsById" parameterType="Map" resultType="fruits">
        select id,name,price from fruits where id=#{map.id};
    </select>
 
    <insert id="addfruits" parameterType="Map" >
        insert into fruits(id,name,price) values (#{map.id},#{map.name},#{map.price});
    </insert>
 
    <delete id="deletefruits" parameterType="Map" >
        delete from fruits where id=#{map.id};
    </delete>
 
    <update id="updatefruits" parameterType="Map" >
        update  fruits set name=#{map.name},price=#{map.price} where id=#{map.id}
    </update>
</mapper>

package com.pojo.Dao;
 
import com.pojo.pp1.fruits;
import com.utils.mybatisUtils;
 
import org.apache.ibatis.session.sqlSession;
import org.junit.Test;
 
import java.math.BigDecimal;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class fruitsDaoTest {
    @Test
    public void getfruitsListTest() {
        SqlSession sqlSession = mybatisUtils.getSqlSession();
        fruitsDao fruitsDao = sqlSession.getMapper(com.pojo.Dao.fruitsDao.class);
        List<fruits> fruitsList = fruitsDao.getfruitsList();
        for (fruits f : fruitsList) {
            System.out.println(f);
        }
        sqlSession.close();
    }
    @Test
    public void getfruitsByIdTest() {
        SqlSession sqlSession = mybatisUtils.getSqlSession();
        fruitsDao fruitsDao = sqlSession.getMapper(com.pojo.Dao.fruitsDao.class);
        Map<String, Object> map = new HashMap<>();
        map.put("id", 3);
        fruits f = fruitsDao.getfruitsById(map);
        System.out.println(f);
        sqlSession.close();
    }
    @Test
    public void addfruits() {
        SqlSession sqlSession = mybatisUtils.getSqlSession();
        fruitsDao fruitsDao = sqlSession.getMapper(com.pojo.Dao.fruitsDao.class);
        Map<String, Object> map = new HashMap<>();
        map.put("id", 0);
        map.put("name", "watermelon");
        BigDecimal bigDecimal= BigDecimal.valueOf(2);
        map.put("price", bigDecimal);
        int a = fruitsDao.addfruits(map);
        if (a > 0) {
            System.out.println("添加信息ok");
        }
        sqlSession.commit();
        sqlSession.close();
    }
    @Test
    public void deletefruits() {
        SqlSession sqlSession = mybatisUtils.getSqlSession();
        fruitsDao fruitsDao = sqlSession.getMapper(com.pojo.Dao.fruitsDao.class);
        Map<String, Object> map = new HashMap<>();
        map.put("id", 3);
        int a = fruitsDao.deletefruits(map);
        if (a > 0) {
            System.out.println("删除信息ok");
        }
        sqlSession.commit();
        sqlSession.close();
    }
    @Test
    public void updatefruits() {
        SqlSession sqlSession = mybatisUtils.getSqlSession();
        fruitsDao fruitsDao = sqlSession.getMapper(com.pojo.Dao.fruitsDao.class);
        Map<String, Object> map = new HashMap<>();
        map.put("id", 1);
        BigDecimal bigDecimal = BigDecimal.valueOf(5);
        map.put("name", "Big_apple");
        map.put("price", bigDecimal);
        int a = fruitsDao.updatefruits(map);
        if (a > 0) {
            System.out.println("修改信息ok");
        }
        sqlSession.commit();
        sqlSession.close();
    }
}

<typeAliases>
        <typeAlias type="java.util.Map" alias="Map"/>
</typeAliases>