foreach 查出BIGTYPE,SMALLTYPE
2021/10/18 23:40:03
本文主要是介绍foreach 查出BIGTYPE,SMALLTYPE,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
package com.qfedu.springboot.ssm.mapper; import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.qfedu.springboot.ssm.entity.Cate; import com.qfedu.springboot.ssm.entity.User; import org.junit.jupiter.api.Test; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import static org.junit.jupiter.api.Assertions.*; @SpringBootTest class UserMapperTest { @Autowired private UserMapper userMapper; @Autowired private CateMapper cateMapper; @Test void test1(){ User user = new User(); // user.setId(111L); // user.setAge(11); // // user.setEmail("qq@qq.com"); // user.setName("csj"); // userMapper.insert(user); List<User> users = userMapper.selectList(null); // List<User> focList = new ArrayList<>(); ArrayList<String> list=new ArrayList(); for (User user1 : users) { // user1.setBigType(user1.getAge()+1000); // String id = "1"; // String id = user1.getBigType(); // String id2 = user1.getSmallType(); // System.out.println(id); // System.out.println("================================"); // System.out.println(user1.getBigType()); // System.out.println("~~~~~~~~~~~~~~~~~~~~"); // Cate cate = cateMapper.selectById(user1.getBigType()); // System.out.println(cate); // Cate cate2 = cateMapper.selectById(user1.getSmallType()); // System.out.println(cate.getName()); user1.setBigType(cateMapper.selectById(user1.getBigType()).getName()); user1.setSmallType(cateMapper.selectById(user1.getSmallType()).getName()); } for (User user1 : users) { System.out.println(user1); } } @Test void test2(){ QueryWrapper<User> wrapper = new QueryWrapper<>(); wrapper.eq("name", "csj"); List<User> users = userMapper.selectList(wrapper); System.out.println(users); } }
这篇关于foreach 查出BIGTYPE,SMALLTYPE的文章就介绍到这儿,希望我们推荐的文章对大家有所帮助,也希望大家多多支持为之网!
- 2024-07-05feign默认connecttimeout和readtimeout是多少-icode9专业技术文章分享
- 2024-07-05idea控制台,日志太多,导致部分想看得日志被刷走 搜不到-icode9专业技术文章分享
- 2024-07-05The server selected protocol version Tls10 is not accepted by client preferences [TLs12]-icode9专业技术文章分享
- 2024-07-05怎么清理项目缓存-icode9专业技术文章分享
- 2024-07-04安装 Eyoucms详细图文教程-icode9专业技术文章分享
- 2024-07-04ueditor 复制文章时,图片的链接是一个下载图片地址,该如何处理?-icode9专业技术文章分享
- 2024-07-04怎样判断host有没有对wordpress有缓存呢-icode9专业技术文章分享
- 2024-07-04具有编译功能的系统make后,无法ssh连接-icode9专业技术文章分享
- 2024-07-04make后如何升级ssh-icode9专业技术文章分享
- 2024-07-03微信支付提示下单账户与支付账户不一致-icode9专业技术文章分享