MyBatis-Plus的常规CRUD操作

package com.huacheng;

import com.huacheng.mybatisPlus.domain.User;
import com.huacheng.mybatisPlus.service.UserService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import java.util.ArrayList;

@SpringBootTest
@RunWith(SpringRunner.class)
public class Test_service {

    @Autowired
    private UserService userService;

    @Test
    public void t_saveBatch() {
        //批量保存
        ArrayList<User> users = new ArrayList<>();
        User yeding = new User(6l, "yeding", 23, "5444@163.com");
        User fudadiao = new User(7l, "fudadiao", 24, "55144@qq.com");
        users.add(yeding);
        users.add(fudadiao);
        userService.saveBatch(users);
    }


    @Test
    public void t_getById() {
        //根据ID获取
        User user = userService.getById(6);
        System.out.println(user);
    }

    @Test
    public void t_removeById() {
        //根据ID删除
        userService.removeById(6);
    }

    @Test
    public void t_removeByIds() {
        //批量删除
        ArrayList<Integer> ids = new ArrayList<>();
        ids.add(6);
        ids.add(7);
        userService.removeByIds(ids);
    }

    @Test
    public void t_updateById() {
        //根据ID更新
        userService.updateById(new User(1l, "fu", 23, "23954545@qq.com"));
    }
}