记录评论功能实体类

目前功能还在设计；
初步方案使用Springboot和Mongodb结合，完成一个jar的简单评论功能；
前期只设计接口方案。
Mongodb安装

后期会增加前端使用界面和方法

package com.comment.domain;

import java.io.Serializable;
import java.time.LocalDateTime;

import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;

import lombok.Data;


/**
 * 评价系统数据模型结构
 */
@Document
@Data
public class Comment implements Serializable {
	
	private static final long serialVersionUID = 1L;

	/**
	 * 评论内容主键id
	 */
	@Id
	private Long _id;
	
	/**
	 * 评论人昵称(如果获取不到可以使用javafaker来造一个)
	 */
	private String nickName;
	
	/**
	 * 评论人ID(不允许为空)
	 */
	private Long userId;
	
	/**
	 * 评论人Ip地址
	 */
	private String ipaddr;
	
	/**
	 * 评论人IP所在地址
	 */
	private String ipLocation;
	
	/**
	 * 评论人所使用的浏览器类型
	 */
	private String browser;
	
	/**
	 * 评论人所使操作系统
	 */
	private String os;
	
	/**
	 * 评论主体文章的ID(不允许为空)
	 */
	private Long subjectId;
	
	/**
	 * 评论内容(不允许为空)
	 */
	private String content;
	
	/**
	 * 是否是作者本人;默认不是
	 */
	private boolean flag = false;
	
	/**
	 * 是否删除;默认不删除(允许为空)
	 */
	private boolean delete = false;
	
	/**
	 * 父ID，如果默认是空就是没有人回复的帖子(允许为空)
	 */
	private Long parentId;
	
	/**
	 * 发布日期
	 */
	private LocalDateTime publishDate;
	
	/**
	 * 附件内容(可以为空)
	 */
	private String attachment;
	
	
}

使用的Dao方法

package com.comment.dao;

import java.util.List;

import org.springframework.data.mongodb.repository.MongoRepository;

import com.comment.domain.Comment;

public interface CommentDao extends MongoRepository<Comment, Long>{
	
	/**
	 * @Title: findAllCommentBySubjectId
	 * @Description: 根据评论文章ID查询评论列表信息
	 * @Author 刘 仁
	 * @DateTime 2021-3-3 9:36:19
	 * @param subjectId
	 * @return
	 */
	public List<Comment> findAllCommentBySubjectId(Long subjectId);
	
	
}

Service方法

package com.comment.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.comment.dao.CommentDao;
import com.comment.domain.Comment;
import com.comment.util.SnowflakeIdWorker;

@Service
public class CommentService {

	@Autowired
	private CommentDao commentDao;
	
	
	/**
	 * @Title: addComment
	 * @Description: 新增评论
	 * @Author 刘 仁
	 * @DateTime 2021-3-3 9:34:27
	 * @param comment
	 */
	public void addComment(Comment comment) {
		
		SnowflakeIdWorker idWorker = new SnowflakeIdWorker(0, 0);
		comment.set_id(idWorker.nextId());
		commentDao.save(comment);
	}
	
	/**
	 * @Title: findAllCommentBySubjectId
	 * @Description: 根据文章ID查询评论列表信息
	 * @Author 刘 仁
	 * @DateTime 2021-3-3 9:38:15
	 * @param subjectId
	 * @return
	 */
	public List<Comment> findAllCommentBySubjectId(Long subjectId){
		return commentDao.findAllCommentBySubjectId(subjectId);
	}
	
}

controller方法


package com.comment.controller;

import java.time.LocalDateTime;
import java.util.List;
import java.util.Locale;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.comment.domain.Comment;
import com.comment.service.CommentService;
import com.github.javafaker.Faker;

@RestController
@RequestMapping("/comment")
public class CommentController {
	
	@Autowired
    private CommentService commentService;
	
	@PostMapping("/add")
	public void addComment() {
		Faker fakerWithCN = new Faker(Locale.CHINA);
		Comment comment = new Comment();
		comment.setNickName(fakerWithCN.name().fullName());
		comment.setContent("随机的评论内容");
		comment.setUserId(1L);
		comment.setIpaddr(fakerWithCN.internet().ipV4Address());
		comment.setIpLocation(fakerWithCN.internet().ipV4Cidr());
		comment.setBrowser(fakerWithCN.internet().userAgentAny());
		comment.setOs(fakerWithCN.artist().name());
		comment.setSubjectId(10001L);
		comment.setParentId(null);
		comment.setPublishDate(LocalDateTime.now());
    	commentService.addComment(comment);
	}
	
	@PostMapping("/list")
	public List<Comment> findAllCommentBySubjectId(){
		return commentService.findAllCommentBySubjectId(10001L);
	}
	
}

直接调用http://localhost:9666/comment/add方法，每调用一次就新增一条记录
调用http://localhost:9666/comment/list根据文章ID查询该文章的所有评论信息

[
{
"_id": 816615260071919616,
"nickName": "刘立辉",
"userId": 1,
"ipaddr": "127.0.0.1",
"ipLocation": "聊城",
"browser": "Windows os",
"os": "os",
"subjectId": 10001,
"content": "随机的评论内容",
"flag": false,
"delete": false,
"parentId": null,
"publishDate": "2021-03-03T10:17:29.978",
"attachment": null
},
{
"_id": 816615958461284352,
"nickName": "袁立果",
"userId": 1,
"ipaddr": "127.0.0.1",
"ipLocation": "南昌",
"browser": "Windows os",
"os": "os",
"subjectId": 10001,
"content": "随机的评论内容",
"flag": false,
"delete": false,
"parentId": null,
"publishDate": "2021-03-03T10:20:16.488",
"attachment": null
},
{
"_id": 816616016950853632,
"nickName": "程风华",
"userId": 1,
"ipaddr": "127.0.0.1",
"ipLocation": "马鞍山",
"browser": "Windows os",
"os": "os",
"subjectId": 10001,
"content": "随机的评论内容",
"flag": false,
"delete": false,
"parentId": null,
"publishDate": "2021-03-03T10:20:30.433",
"attachment": null
},
{
"_id": 816616021933686784,
"nickName": "汪耀杰",
"userId": 1,
"ipaddr": "127.0.0.1",
"ipLocation": "深圳",
"browser": "Windows os",
"os": "os",
"subjectId": 10001,
"content": "随机的评论内容",
"flag": false,
"delete": false,
"parentId": null,
"publishDate": "2021-03-03T10:20:31.621",
"attachment": null
},
{
"_id": 816616022713827328,
"nickName": "范鹏涛",
"userId": 1,
"ipaddr": "127.0.0.1",
"ipLocation": "开封",
"browser": "Windows os",
"os": "os",
"subjectId": 10001,
"content": "随机的评论内容",
"flag": false,
"delete": false,
"parentId": null,
"publishDate": "2021-03-03T10:20:31.807",
"attachment": null
},
{
"_id": 816616023389110272,
"nickName": "汪驰",
"userId": 1,
"ipaddr": "127.0.0.1",
"ipLocation": "济宁",
"browser": "Windows os",
"os": "os",
"subjectId": 10001,
"content": "随机的评论内容",
"flag": false,
"delete": false,
"parentId": null,
"publishDate": "2021-03-03T10:20:31.968",
"attachment": null
},
{
"_id": 816616024072781824,
"nickName": "李瑾瑜",
"userId": 1,
"ipaddr": "127.0.0.1",
"ipLocation": "云浮",
"browser": "Windows os",
"os": "os",
"subjectId": 10001,
"content": "随机的评论内容",
"flag": false,
"delete": false,
"parentId": null,
"publishDate": "2021-03-03T10:20:32.131",
"attachment": null
},
{
"_id": 816616024781619200,
"nickName": "武展鹏",
"userId": 1,
"ipaddr": "127.0.0.1",
"ipLocation": "无锡",
"browser": "Windows os",
"os": "os",
"subjectId": 10001,
"content": "随机的评论内容",
"flag": false,
"delete": false,
"parentId": null,
"publishDate": "2021-03-03T10:20:32.3",
"attachment": null
},
{
"_id": 816616025490456576,
"nickName": "徐鹏飞",
"userId": 1,
"ipaddr": "127.0.0.1",
"ipLocation": "中山",
"browser": "Windows os",
"os": "os",
"subjectId": 10001,
"content": "随机的评论内容",
"flag": false,
"delete": false,
"parentId": null,
"publishDate": "2021-03-03T10:20:32.469",
"attachment": null
}
]

Windows安装MongoDB.zip绿色版
参考地址：https://www.cnblogs.com/qiyecao/p/11658340.html

启动失败的话，需要先删除安装的服务，重新安装

服务的删除：

有些小伙伴通过 cmd->services.msc 找到 mongodb服务，但却无法删除

方法：通过cmd 进入安装的mongodb路径，进入bin目录，使用命令 mongod.exe --remove --serviceName "MongoDB"

根据项目制作成一个jar包信息
kelan-comment-1.0.0.jar 打包成功后只有8K大小
整体项目组信压缩包下载：https://files.cnblogs.com/files/lr393993507/xomment.zip

不定期会发布一些实用的Java开发文章

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原文地址：https://www.cnblogs.com/lr393993507/p/14470525.html