博主介绍：
✌我是阿龙，一名专注于Java技术领域的程序员，全网拥有10W+粉丝。作为CSDN特邀作者、博客专家、新星计划导师，我在计算机毕业设计开发方面积累了丰富的经验。同时，我也是掘金、华为云、阿里云、InfoQ等平台的优质作者。通过长期分享和实战指导，我致力于帮助更多学生完成毕业项目和技术提升。技术范围：
我熟悉的技术领域涵盖SpringBoot、Vue、SSM、HLMT、Jsp、PHP、Nodejs、Python、爬虫、数据可视化、小程序、安卓app、大数据、物联网、机器学习等方面的设计与开发。如果你有任何技术难题，我都乐意与你分享解决方案。为什么选择阅读我：
我是程序阿龙，专注于软件开发，拥有丰富的编程能力和实战经验。在过去的几年里，我辅导了上千名学生，帮助他们顺利完成毕业项目，同时我的技术分享也吸引了超过50W+的粉丝。我是CSDN特邀作者、博客专家、新星计划导师，并在Java领域内获得了多项荣誉，如博客之星。我的作品也被掘金、华为云、阿里云、InfoQ等多个平台推荐，成为各大平台的优质作者。
🍅获取源码请在文末联系我🍅
目录
目录
系统实现界面：
系统实现：
数据库核心代码：
编辑
案例实现
一、详细操作演示视频
在文章的尾声，您会发现一张电子名片👤，欢迎通过名片上的联系方式与我取得联系，以获取更多关于项目演示的详尽视频内容。视频将帮助您全面理解项目的关键点和操作流程。期待与您的进一步交流！
系统实现界面：
系统实现：
package com.service;import com.baomidou.mybatisplus.mapper.Wrapper;
import com.baomidou.mybatisplus.service.IService;
import com.utils.PageUtils;
import com.entity.DiscussershoushangchengEntity;
import java.util.List;
import java.util.Map;
import com.entity.vo.DiscussershoushangchengVO;
import org.apache.ibatis.annotations.Param;
import com.entity.view.DiscussershoushangchengView;/*** 二手商城评论表** @author * @email * @date 2024-04-28 12:02:38*/
public interface DiscussershoushangchengService extends IService<DiscussershoushangchengEntity> {PageUtils queryPage(Map<String, Object> params);List<DiscussershoushangchengVO> selectListVO(Wrapper<DiscussershoushangchengEntity> wrapper);DiscussershoushangchengVO selectVO(@Param("ew") Wrapper<DiscussershoushangchengEntity> wrapper);List<DiscussershoushangchengView> selectListView(Wrapper<DiscussershoushangchengEntity> wrapper);DiscussershoushangchengView selectView(@Param("ew") Wrapper<DiscussershoushangchengEntity> wrapper);PageUtils queryPage(Map<String, Object> params,Wrapper<DiscussershoushangchengEntity> wrapper);}数据库核心代码：
--
-- Current Database: `springbootc9u9lr84`
--/*!40000 DROP DATABASE IF EXISTS `springbootc9u9lr84`*/;CREATE DATABASE /*!32312 IF NOT EXISTS*/ `springbootc9u9lr84` /*!40100 DEFAULT CHARACTER SET utf8mb4 */;USE `springbootc9u9lr84`;--
-- Table structure for table `aboutus`
--DROP TABLE IF EXISTS `aboutus`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `aboutus` (`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`title` varchar(200) NOT NULL COMMENT '标题',`subtitle` varchar(200) DEFAULT NULL COMMENT '副标题',`content` longtext NOT NULL COMMENT '内容',`picture1` longtext COMMENT '图片1',`picture2` longtext COMMENT '图片2',`picture3` longtext COMMENT '图片3',PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8 COMMENT='关于我们';
/*!40101 SET character_set_client = @saved_cs_client */;--
-- Dumping data for table `aboutus`
--LOCK TABLES `aboutus` WRITE;
/*!40000 ALTER TABLE `aboutus` DISABLE KEYS */;
INSERT INTO `aboutus` VALUES (1,'2024-04-28 04:03:06','关于我们','ABOUT US','当你设想门外是寒冷可怕的世界时，你还应该开门出去看看，是否真的如此。如果你有信心，你对前途就不犹豫了。如果你有勇气，你就不怕前途是否有困难或危险了每个人心中都应有两盏灯，一盏是希望的灯，一盏是勇气的灯。有了这两盏灯，我们就不怕海上的黑暗和风涛的险恶了。人的一生很像是在雾中行走。远远望去，只是迷蒙一片，辨不出方向和吉凶。可是，当你鼓起勇气，放下恐惧和怀疑，一步一步向前走去的时候，你就会发现，每走一步，你都能把下一步路看得清楚一点。“往前走，别站在远远的地方观望！”你就可以找到你的方向。','upload/aboutus_picture1.jpg','upload/aboutus_picture2.jpg','upload/aboutus_picture3.jpg');
/*!40000 ALTER TABLE `aboutus` ENABLE KEYS */;
UNLOCK TABLES;--
-- Table structure for table `address`
--DROP TABLE IF EXISTS `address`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `address` (`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`userid` bigint(20) NOT NULL COMMENT '用户id',`address` varchar(200) NOT NULL COMMENT '地址',`name` varchar(200) NOT NULL COMMENT '收货人',`phone` varchar(200) NOT NULL COMMENT '电话',`isdefault` varchar(200) NOT NULL COMMENT '是否默认地址[是/否]',PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8 COMMENT='地址';
/*!40101 SET character_set_client = @saved_cs_client */;--
-- Dumping data for table `address`
--LOCK TABLES `address` WRITE;
/*!40000 ALTER TABLE `address` DISABLE KEYS */;
INSERT INTO `address` VALUES (1,'2024-04-28 04:03:06',11,'宇宙银河系金星1号','金某','13823888881','是'),(2,'2024-04-28 04:03:06',12,'宇宙银河系木星1号','木某','13823888882','是'),(3,'2024-04-28 04:03:06',13,'宇宙银河系水星1号','水某','13823888883','是'),(4,'2024-04-28 04:03:06',14,'宇宙银河系火星1号','火某','13823888884','是'),(5,'2024-04-28 04:03:06',15,'宇宙银河系土星1号','土某','13823888885','是'),(6,'2024-04-28 04:03:06',16,'宇宙银河系月球1号','月某','13823888886','是'),(7,'2024-04-28 04:03:06',17,'宇宙银河系黑洞1号','黑某','13823888887','是'),(8,'2024-04-28 04:03:06',18,'宇宙银河系地球1号','地某','13823888888','是');
/*!40000 ALTER TABLE `address` ENABLE KEYS */;
UNLOCK TABLES;--
-- Table structure for table `cart`
--DROP TABLE IF EXISTS `cart`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `cart` (`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`tablename` varchar(200) DEFAULT 'ershoushangcheng' COMMENT '商品表名',`userid` bigint(20) NOT NULL COMMENT '用户id',`goodid` bigint(20) NOT NULL COMMENT '商品id',`goodname` varchar(200) DEFAULT NULL COMMENT '商品名称',`picture` longtext COMMENT '图片',`buynumber` int(11) NOT NULL COMMENT '购买数量',`price` double DEFAULT NULL COMMENT '单价',`shangjiazhanghao` varchar(200) DEFAULT NULL COMMENT '商户名称',PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='购物车表';
/*!40101 SET character_set_client = @saved_cs_client */;--
-- Dumping data for table `cart`
--LOCK TABLES `cart` WRITE;
/*!40000 ALTER TABLE `cart` DISABLE KEYS */;
/*!40000 ALTER TABLE `cart` ENABLE KEYS */;
UNLOCK TABLES;--
-- Table structure for table `chatmessage`
--DROP TABLE IF EXISTS `chatmessage`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `chatmessage` (`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`uid` bigint(20) NOT NULL COMMENT '用户ID',`fid` bigint(20) NOT NULL COMMENT '好友用户ID',`content` varchar(200) DEFAULT NULL COMMENT '内容',`format` int(11) DEFAULT NULL COMMENT '格式(1:文字，2:图片)',`isread` int(11) DEFAULT '0' COMMENT '消息已读(0:未读，1:已读)',PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='消息表';
/*!40101 SET character_set_client = @saved_cs_client */;--
-- Dumping data for table `chatmessage`
--LOCK TABLES `chatmessage` WRITE;
/*!40000 ALTER TABLE `chatmessage` DISABLE KEYS */;
/*!40000 ALTER TABLE `chatmessage` ENABLE KEYS */;
UNLOCK TABLES;--
-- Table structure for table `config`
--DROP TABLE IF EXISTS `config`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `config` (`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',`name` varchar(100) NOT NULL COMMENT '配置参数名称',`value` varchar(100) DEFAULT NULL COMMENT '配置参数值',`url` varchar(500) DEFAULT NULL COMMENT 'url',PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COMMENT='配置文件';
/*!40101 SET character_set_client = @saved_cs_client */;--
-- Dumping data for table `config`
--LOCK TABLES `config` WRITE;
/*!40000 ALTER TABLE `config` DISABLE KEYS */;
INSERT INTO `config` VALUES (1,'picture1','upload/picture1.jpg',NULL),(2,'picture2','upload/picture2.jpg',NULL),(3,'picture3','upload/picture3.jpg',NULL);
/*!40000 ALTER TABLE `config` ENABLE KEYS */;
UNLOCK TABLES;--
-- Table structure for table `discussershoushangcheng`
--DROP TABLE IF EXISTS `discussershoushangcheng`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `discussershoushangcheng` (`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`refid` bigint(20) NOT NULL COMMENT '关联表id',`userid` bigint(20) NOT NULL COMMENT '用户id',`avatarurl` longtext COMMENT '头像',`nickname` varchar(200) DEFAULT NULL COMMENT '用户名',`content` longtext NOT NULL COMMENT '评论内容',`reply` longtext COMMENT '回复内容',PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='二手商城评论表';
/*!40101 SET character_set_client = @saved_cs_client */;--
-- Dumping data for table `discussershoushangcheng`
--LOCK TABLES `discussershoushangcheng` WRITE;
/*!40000 ALTER TABLE `discussershoushangcheng` DISABLE KEYS */;
/*!40000 ALTER TABLE `discussershoushangcheng` ENABLE KEYS */;
UNLOCK TABLES;--
-- Table structure for table `ershoushangcheng`
--DROP TABLE IF EXISTS `ershoushangcheng`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `ershoushangcheng` (`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`shangpinbianhao` varchar(200) DEFAULT NULL COMMENT '商品编号',`shangpinmingcheng` varchar(200) DEFAULT NULL COMMENT '商品名称',`shangpinfenlei` varchar(200) DEFAULT NULL COMMENT '商品分类',`shangpinzhaopian` longtext COMMENT '商品照片',`xinjiuchengdu` varchar(200) DEFAULT NULL COMMENT '新旧程度',`shangjiashijian` date DEFAULT NULL COMMENT '上架时间',`shangpinxiangqing` longtext COMMENT '商品详情',`shangjiazhanghao` varchar(200) DEFAULT NULL COMMENT '商家账号',`shangjiaxingming` varchar(200) DEFAULT NULL COMMENT '商家姓名',`onelimittimes` int(11) DEFAULT NULL COMMENT '单限',`alllimittimes` int(11) DEFAULT NULL COMMENT '库存',`clicktime` datetime DEFAULT NULL COMMENT '最近点击时间',`clicknum` int(11) DEFAULT '0' COMMENT '点击次数',`discussnum` int(11) DEFAULT '0' COMMENT '评论数',`jf` int(11) DEFAULT '-1' COMMENT '积分',`price` double NOT NULL COMMENT '价格',`storeupnum` int(11) DEFAULT '0' COMMENT '收藏数',PRIMARY KEY (`id`),UNIQUE KEY `shangpinbianhao` (`shangpinbianhao`)
) ENGINE=InnoDB AUTO_INCREMENT=49 DEFAULT CHARSET=utf8 COMMENT='二手商城';
/*!40101 SET character_set_client = @saved_cs_client */;--
-- Dumping data for table `ershoushangcheng`
--LOCK TABLES `ershoushangcheng` WRITE;
/*!40000 ALTER TABLE `ershoushangcheng` DISABLE KEYS */;
INSERT INTO `ershoushangcheng` VALUES (41,'2024-04-28 04:03:05','1111111111','商品名称1','商品分类1','upload/ershoushangcheng_shangpinzhaopian1.jpg,upload/ershoushangcheng_shangpinzhaopian2.jpg,upload/ershoushangcheng_shangpinzhaopian3.jpg','全新','2024-04-28','商品详情1','商家账号1','商家姓名1',1,99,'2024-04-28 12:03:05',1,0,10000,99.9,1),(42,'2024-04-28 04:03:05','2222222222','商品名称2','商品分类2','upload/ershoushangcheng_shangpinzhaopian2.jpg,upload/ershoushangcheng_shangpinzhaopian3.jpg,upload/ershoushangcheng_shangpinzhaopian4.jpg','全新','2024-04-28','商品详情2','商家账号2','商家姓名2',2,99,'2024-04-28 12:03:05',2,0,10000,99.9,2),(43,'2024-04-28 04:03:05','3333333333','商品名称3','商品分类3','upload/ershoushangcheng_shangpinzhaopian3.jpg,upload/ershoushangcheng_shangpinzhaopian4.jpg,upload/ershoushangcheng_shangpinzhaopian5.jpg','全新','2024-04-28','商品详情3','商家账号3','商家姓名3',3,99,'2024-04-28 12:03:05',3,0,10000,99.9,3),(44,'2024-04-28 04:03:05','4444444444','商品名称4','商品分类4','upload/ershoushangcheng_shangpinzhaopian4.jpg,upload/ershoushangcheng_shangpinzhaopian5.jpg,upload/ershoushangcheng_shangpinzhaopian6.jpg','全新','2024-04-28','商品详情4','商家账号4','商家姓名4',4,99,'2024-04-28 12:03:05',4,0,10000,99.9,4),(45,'2024-04-28 04:03:05','5555555555','商品名称5','商品分类5','upload/ershoushangcheng_shangpinzhaopian5.jpg,upload/ershoushangcheng_shangpinzhaopian6.jpg,upload/ershoushangcheng_shangpinzhaopian7.jpg','全新','2024-04-28','商品详情5','商家账号5','商家姓名5',5,99,'2024-04-28 12:03:05',5,0,10000,99.9,5),(46,'2024-04-28 04:03:05','6666666666','商品名称6','商品分类6','upload/ershoushangcheng_shangpinzhaopian6.jpg,upload/ershoushangcheng_shangpinzhaopian7.jpg,upload/ershoushangcheng_shangpinzhaopian8.jpg','全新','2024-04-28','商品详情6','商家账号6','商家姓名6',6,99,'2024-04-28 12:03:05',6,0,10000,99.9,6),(47,'2024-04-28 04:03:05','7777777777','商品名称7','商品分类7','upload/ershoushangcheng_shangpinzhaopian7.jpg,upload/ershoushangcheng_shangpinzhaopian8.jpg,upload/ershoushangcheng_shangpinzhaopian9.jpg','全新','2024-04-28','商品详情7','商家账号7','商家姓名7',7,99,'2024-04-28 12:03:05',7,0,10000,99.9,7),(48,'2024-04-28 04:03:05','8888888888','商品名称8','商品分类8','upload/ershoushangcheng_shangpinzhaopian8.jpg,upload/ershoushangcheng_shangpinzhaopian9.jpg,upload/ershoushangcheng_shangpinzhaopian10.jpg','全新','2024-04-28','商品详情8','商家账号8','商家姓名8',8,99,'2024-04-28 12:03:05',8,0,10000,99.9,8);
/*!40000 ALTER TABLE `ershoushangcheng` ENABLE KEYS */;
UNLOCK TABLES;--
-- Table structure for table `forum`
--DROP TABLE IF EXISTS `forum`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `forum` (`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`title` varchar(200) DEFAULT NULL COMMENT '帖子标题',`content` longtext NOT NULL COMMENT '帖子内容',`parentid` bigint(20) DEFAULT NULL COMMENT '父节点id',`userid` bigint(20) NOT NULL COMMENT '用户id',`username` varchar(200) DEFAULT NULL COMMENT '用户名',`avatarurl` longtext COMMENT '头像',`isdone` varchar(200) DEFAULT NULL COMMENT '状态',`istop` int(11) DEFAULT '0' COMMENT '是否置顶',`toptime` datetime DEFAULT NULL COMMENT '置顶时间',PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=119 DEFAULT CHARSET=utf8 COMMENT='交流论坛';
/*!40101 SET character_set_client = @saved_cs_client */;--
-- Dumping data for table `forum`
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/*!40000 ALTER TABLE `forum` DISABLE KEYS */;
INSERT INTO `forum` VALUES (111,'2024-04-28 04:03:05','帖子标题1','帖子内容1',0,1,'用户名1','upload/forum_avatarurl1.jpg,upload/forum_avatarurl2.jpg,upload/forum_avatarurl3.jpg','开放',0,'2024-04-28 12:03:05'),(112,'2024-04-28 04:03:05','帖子标题2','帖子内容2',0,2,'用户名2','upload/forum_avatarurl2.jpg,upload/forum_avatarurl3.jpg,upload/forum_avatarurl4.jpg','开放',0,'2024-04-28 12:03:05'),(113,'2024-04-28 04:03:05','帖子标题3','帖子内容3',0,3,'用户名3','upload/forum_avatarurl3.jpg,upload/forum_avatarurl4.jpg,upload/forum_avatarurl5.jpg','开放',0,'2024-04-28 12:03:05'),(114,'2024-04-28 04:03:05','帖子标题4','帖子内容4',0,4,'用户名4','upload/forum_avatarurl4.jpg,upload/forum_avatarurl5.jpg,upload/forum_avatarurl6.jpg','开放',0,'2024-04-28 12:03:05'),(115,'2024-04-28 04:03:06','帖子标题5','帖子内容5',0,5,'用户名5','upload/forum_avatarurl5.jpg,upload/forum_avatarurl6.jpg,upload/forum_avatarurl7.jpg','开放',0,'2024-04-28 12:03:06'),(116,'2024-04-28 04:03:06','帖子标题6','帖子内容6',0,6,'用户名6','upload/forum_avatarurl6.jpg,upload/forum_avatarurl7.jpg,upload/forum_avatarurl8.jpg','开放',0,'2024-04-28 12:03:06'),(117,'2024-04-28 04:03:06','帖子标题7','帖子内容7',0,7,'用户名7','upload/forum_avatarurl7.jpg,upload/forum_avatarurl8.jpg,upload/forum_avatarurl9.jpg','开放',0,'2024-04-28 12:03:06'),(118,'2024-04-28 04:03:06','帖子标题8','帖子内容8',0,8,'用户名8','upload/forum_avatarurl8.jpg,upload/forum_avatarurl9.jpg,upload/forum_avatarurl10.jpg','开放',0,'2024-04-28 12:03:06');
/*!40000 ALTER TABLE `forum` ENABLE KEYS */;
UNLOCK TABLES;--
-- Table structure for table `friend`
--DROP TABLE IF EXISTS `friend`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `friend` (`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`uid` bigint(20) NOT NULL COMMENT '用户ID',`fid` bigint(20) NOT NULL COMMENT '好友用户ID',`name` varchar(200) NOT NULL COMMENT '名称',`picture` longtext NOT NULL COMMENT '图片',`role` varchar(200) DEFAULT NULL COMMENT '角色',`tablename` varchar(200) DEFAULT NULL COMMENT '表名',`alias` varchar(200) DEFAULT NULL COMMENT '别名',`type` int(11) DEFAULT '0' COMMENT '类型(0:好友申请，1:好友，2:消息)',PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='好友表';
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UNLOCK TABLES;--
-- Table structure for table `gongyilan`
--DROP TABLE IF EXISTS `gongyilan`;
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/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `gongyilan` (`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`xueshengzhanghao` varchar(200) DEFAULT NULL COMMENT '学生账号',`xueshengxingming` varchar(200) DEFAULT NULL COMMENT '学生姓名',`xueshengzhaopian` longtext COMMENT '学生照片',`pinkunzhuangtai` varchar(200) DEFAULT NULL COMMENT '贫困状态',`pinkunmiaoshu` longtext COMMENT '贫困描述',`pinkunxiangqing` longtext COMMENT '贫困详情',PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=69 DEFAULT CHARSET=utf8 COMMENT='公益栏';
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案例实现
为什么选择我
我是程序阿龙，专注于软件开发，拥有丰富的编程能力和实战经验。在过去的几年里，我辅导了上千名学生，帮助他们顺利完成毕业项目，同时我的技术分享也吸引了超过50W+的粉丝。我是CSDN特邀作者、博客专家、新星计划导师，并在Java领域内获得了多项荣誉，如博客之星。我的作品也被掘金、华为云、阿里云、InfoQ等多个平台推荐，成为各大平台的优质作者。