探花交友_第6章_圈子互动（新版）

文章目录

• 探花交友_第6章_圈子互动（新版）
• 课程说明
• 1. 动态查询
• • 1.1 查询好友动态
  • • 1.1.1 接口文档
    • 1.1.2 代码步骤
    • 1.1.3 代码实现
    • • tanhua-app-server
      • • **MovementController**
        • **MovementService**
      • tanhua-dubbo-interface
      • tanhua-dubbo-mongo
  • 1.2 查询推荐动态
  • • 1.2.1 接口文档
    • 1.2.2 代码步骤
    • 1.2.3 代码实现
    • • tanhua-app-server
      • • **MovementController**
        • **MovementService**
      • tanhua-dubbo-interface
      • tanhua-dubbo-mongo
      • 常量类
  • 1.3 根据id查询动态
  • • 1.3.1 接口文档
    • 1.3.2 代码实现
    • • tanhua-app-server
      • tanhua-dubbo-interface
      • tanhua-dubbo-mongo
• 2. 圈子互动
• • 2.1 环境搭建
  • • 2.1.1 实体类对象
    • 2.1.2 CommentVo对象
    • 2.1.3 CommentType枚举
  • 2.2 动态评论
  • • 2.2.1 评论列表查询
    • • 接口文档
      • tanhua-app-server
      • • **CommentController**
      • tanhua-dubbo-interface
      • tanhua-dubbo-mongo
    • 2.2.2 发布评论
    • • 接口文档
      • tanhua-app-server
      • • **CommentController**
        • **CommentService**
      • tanhua-dubbo-interface
      • tanhua-dubbo-mongo
  • 2.3 动态点赞
  • • 2.3.1 动态点赞
    • • 接口文档
      • tanhua-app-server
      • • **MovementController**
        • **MovementService**
      • tanhua-dubbo-interface
      • tanhua-dubbo-mongo
    • 2.3.2 取消点赞
    • • 接口文档
      • **tanhua-app-server**
      • tanhua-dubbo-interface
      • tanhua-dubbo-mongo
    • 2.3.3 点赞标识
  • 2.4 动态喜欢
  • • 2.4.1 动态喜欢
    • • 接口文档
      • tanhua-app-server
      • • **MovementController**
        • **MovementService**
    • 2.4.2 取消喜欢
    • • 接口文档
      • tanhua-app-server
      • • **MovementController**
        • **MovementService**
    • 2.4.3 喜欢标识

课程说明

• 圈子动态查询
• 圈子实现评论
• 圈子实现点赞 喜欢功能
• 圈子实现评论

1. 动态查询

我的动态：查询个人发布的动态列表（分页查询），和之前实现的好友动态，推荐动态实现逻辑是一致。

1.1 查询好友动态

查询好友动态与查询推荐动态显示的结构是一样的，只是其查询数据源不同

1.1.1 接口文档

API接口文档：http://192.168.136.160:3000/project/19/interface/api/142

1.1.2 代码步骤

• Controller层接受请求参数

• Service数据封装

  • 调用API查询好友动态详情数据
  • 调用API查询动态发布人详情
  • 构造VO对象

• API层根据用户ID查询好友发布动态详情

  • 查询好友时间线表
  • 查询动态详情

1.1.3 代码实现

好友动态和推荐动态的展示格式和我的动态相同，使用相同的vo封装数据即可 !

tanhua-app-server

在tanhua-app-server模块的MovementController和MovementService中添加查询好友动态功能

MovementController

/**
* 查询好友动态
*/
@GetMapping
public ResponseEntity movements(@RequestParam(defaultValue = "1") Integer page,@RequestParam(defaultValue = "10") Integer pagesize) {PageResult pr = movementService.findFriendMovements(page,pagesize);return ResponseEntity.ok(pr);
}

MovementService

//查询好友动态
public PageResult findFriendMovements(Integer page, Integer pagesize) {//1、获取当前用户的idLong userId = UserHolder.getUserId();//2、调用API查询当前用户好友发布的动态列表List list = movementApi.findFriendMovements(page,pagesize,userId);//3、判断列表是否为空return getPageResult(page, pagesize, list);
}//抽取公共方法
private PageResult getPageResult(Integer page, Integer pagesize, List list) {if(CollUtil.isEmpty(list)) {return new PageResult();}//4、提取动态发布人的id列表List userIds = CollUtil.getFieldValues(list, "userId", Long.class);//5、根据用户的id列表获取用户详情Map map = userInfoApi.findByIds(userIds, null);//6、一个Movement构造一个vo对象List vos = new ArrayList<>();for (Movement movement : list) {UserInfo userInfo = map.get(movement.getUserId());if(userInfo != null) {MovementsVo vo = MovementsVo.init(userInfo, movement);vos.add(vo);}}//7、构造PageResult并返回return new PageResult(page, pagesize,0l,vos);
}

tanhua-dubbo-interface

在tanhua-dubbo-interface模块的MovementApi添加方法

MovementApi

/*** 查询好友动态*/
List findFriendMovements(Integer page, Integer pagesize, Long userId);

tanhua-dubbo-mongo

在tanhua-dubbo-mongo模块的MovementApiImpl添加方法

MovementApiImpl

/**
* 查询当前用户好友发布的所有动态
* @param friendId:当前操作用户id
*/
public List findFriendMovements(Integer page, Integer pagesize, Long friendId) {//1、根据friendId查询时间线表Query query = Query.query(Criteria.where("friendId").is(friendId)).skip((page -1) * pagesize).limit(pagesize).with(Sort.by(Sort.Order.desc("created")));List lineList = mongoTemplate.find(query, MovementTimeLine.class);//2、提取动态id列表List list = CollUtil.getFieldValues(lineList, "movementId", ObjectId.class);//3、根据动态id查询动态详情Query movementQuery = Query.query(Criteria.where("id").in(list));return mongoTemplate.find(movementQuery,Movement.class);
}

1.2 查询推荐动态

推荐动态是通过推荐系统计算出的结果，现在我们只需要实现查询即可，推荐系统在后面的课程中完成。

推荐系统计算完成后，会将结果数据写入到Redis中，数据如下：

192.168.31.81:6379> get MOVEMENTS_RECOMMEND_1
"2562,3639,2063,3448,2128,2597,2893,2333,3330,2642,2541,3002,3561,3649,2384,2504,3397,2843,2341,2249"

可以看到，在Redis中的数据是有多个发布id组成（pid）由逗号分隔。所以实现中需要自己对这些数据做分页处理。

1.2.1 接口文档

API接口文档：http://192.168.136.160:3000/project/19/interface/api/145

1.2.2 代码步骤

• Controller层接受请求参数

• Service数据封装

  • 从redis获取当前用户的推荐PID列表
  • 如果不存在，调用API随机获取10条动态数据
  • 如果存在，调用API根据PID列表查询动态数据
  • 构造VO对象

• API层编写方法

  • 随机获取
  • 根据pid列表查询

1.2.3 代码实现

tanhua-app-server

在tanhua-app-server模块的MovementController和MovementService中添加查询推荐动态功能

MovementController

/*** 查询推荐动态列表*/
@GetMapping("/recommend")
public ResponseEntity recommend(@RequestParam(defaultValue = "1") Integer page,@RequestParam(defaultValue = "10") Integer pagesize) {PageResult pr = movementService.findRecommendMovements(page,pagesize);return ResponseEntity.ok(pr);
}

MovementService

/*** 查询推荐动态*/
public PageResult findRecommendMovements(Integer page, Integer pagesize) {//1、从redis中获取推荐数据String redisKey = Constants.MOVEMENTS_RECOMMEND +UserHolder.getUserId();String redisValue = redisTemplate.opsForValue().get(redisKey);//2、判断推荐数据是否存在List list = Collections.EMPTY_LIST;if(StringUtils.isEmpty(redisValue)) {//3、如果不存在，调用API随机构造10条动态数据list = movementApi.randomMovements(pagesize);}else {//4、如果存在，处理pid数据   "16,17,18,19,20,21,10015,10020,10040,10064,10092,10093,10099,10067" 15String[] values = redisValue.split(",");//判断当前页的起始条数是否小于数组总数if( (page -1) * pagesize < values.length) {List pids = Arrays.stream(values).skip((page - 1) * pagesize).limit(pagesize).map(e->Long.valueOf(e)).collect(Collectors.toList());//5、调用API根据PID数组查询动态数据list = movementApi.findMovementsByPids(pids);}}//6、调用公共方法构造返回值return getPageResult(page,pagesize,list);
}

tanhua-dubbo-interface

在tanhua-dubbo-interface模块的MovementApi添加方法

MovementApi

//根据pid数组查询动态
List findMovementsByPids(List pids);//随机获取多条动态数据
List randomMovements(Integer counts);

tanhua-dubbo-mongo

在tanhua-dubbo-mongo模块的MovementApiImpl添加方法

MovementApiImpl

//根据pid查询
public List findMovementsByPids(List pids) {Query query = Query.query(Criteria.where("pid").in(pids));return mongoTemplate.find(query,Movement.class);
}//随机查询多条数据
public List randomMovements(Integer counts) {//1、创建统计对象，设置统计参数TypedAggregation aggregation = Aggregation.newAggregation(Movement.class,Aggregation.sample(counts));//2、调用mongoTemplate方法统计AggregationResults results = mongoTemplate.aggregate(aggregation, Movement.class);//3、获取统计结果return results.getMappedResults();
}

常量类

在tanhua-commons模块添加常量类Constants

Constants

package com.tanhua.commons.utils;//常量定义
public class Constants {//手机APP短信验证码CHECK_CODE_public static final String SMS_CODE = "CHECK_CODE_";//手机APP短信验证码CHECK_CODE_public static final String CAP_CODE = "CHECK_CODE_";//冻结用户状态KEYpublic static final String USER_FREEZE = "USER_FREEZE_";//冻结HashKEYpublic static final String FREEZE_USER = "FREEZE_USER_";//推荐动态public static final String MOVEMENTS_RECOMMEND = "MOVEMENTS_RECOMMEND_";//推荐视频public static final String VIDEOS_RECOMMEND = "VIDEOS_RECOMMEND_";//圈子互动KEYpublic static final String MOVEMENTS_INTERACT_KEY = "MOVEMENTS_INTERACT_";//动态点赞用户HashKeypublic static final String MOVEMENT_LIKE_HASHKEY = "MOVEMENT_LIKE_";//动态喜欢用户HashKeypublic static final String MOVEMENT_LOVE_HASHKEY = "MOVEMENT_LOVE_";//视频点赞用户HashKeypublic static final String VIDEO_LIKE_HASHKEY = "VIDEO_LIKE";//访问用户public static final String VISITORS_USER = "VISITOR_USER";//初始化密码public static final String INIT_PASSWORD = "123456";//环信用户前缀public static final String HX_USER_PREFIX = "hx";//jwt加密盐public static final String JWT_SECRET = "itcast";//jwt超时时间public static final int JWT_TIME_OUT = 3_600;//用户喜欢Redis的keypublic static final String USER_LIKE_KEY="USER_LIKE_SET_";//用户不喜欢Redis的keypublic static final String USER_NOT_LIKE_KEY="USER_NOT_LIKE_SET_";//关注用户的keypublic static final String FOCUS_USER_KEY = "FOCUS_USER_KEY_";
}

1.3 根据id查询动态

根据id查询动态：当手机端查看评论内容时（需要根据动态id，查询动态详情），后续再去查询评论列表

1.3.1 接口文档

API接口文档：http://192.168.136.160:3000/project/19/interface/api/151

1.3.2 代码实现

tanhua-app-server

在tanhua-app-server模块的MovementController和MovementService中添加方法

MovementController

/*** 查询单条动态
*/
@GetMapping("/{id}")
public ResponseEntity findById(@PathVariable("id") String movementId) {MovementsVo vo = movementService.findById(movementId);return ResponseEntity.ok(vo);
}

MovementService

//根据id查询
public MovementsVo findById(String movementId) {//1、调用api根据id查询动态详情Movement movement = movementApi.findById(movementId);//2、转化vo对象if(movement != null) {UserInfo userInfo = userInfoApi.findById(movement.getUserId());return MovementsVo.init(userInfo,movement);}else {return null;}
}

tanhua-dubbo-interface

在tanhua-dubbo-interface模块的MovementApi添加方法

//根据id查询
Movement findById(String movementId);

tanhua-dubbo-mongo

在tanhua-dubbo-mongo模块的MovementApiImpl添加方法

@Override
public Movement findById(String movementId) {return mongoTemplate.findById(movementId,Movement.class);
}

2. 圈子互动

点赞 喜欢 评论等均可理解为用户对动态的互动。

数据库表：comment

将数据记录到表中：保存到MongoDB中
互动表需要几张：需要一张表即可（quanzi_comment）
里面的数据需要分类：通过字段commentType 1-点赞，2-评论，3-喜欢
{"_id" : ObjectId("5fe7f9263c851428107cd4e8"),"publishId" : ObjectId("5fae53947e52992e78a3afa5"),"commentType" : 1,"userId" : NumberLong(1),"publishUserId" : NumberLong(1),"created" : NumberLong(1609038118275),"likeCount" : 0,"_class" : "com.tanhua.domain.mongo.Comment"
}

数据存储位置：redis，mongodb

mongodb中的数据

• 在动态详情Movement表中，加入喜欢，点赞，评论数量：检查数据库访问压力
  • 互动操作的时候，不要忘记对上面的字段进行维护
• 圈子互动的表 comment
• 互动完成（点赞，喜欢）：不仅要将数据保存到mongo中，需要记录到redis中
• 页面查询圈子列表时，可以从redis中判断是否有点赞，和喜欢历史

2.1 环境搭建

2.1.1 实体类对象

创建实体类对象Comment

package com.tanhua.model.mongo;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.bson.types.ObjectId;
import org.springframework.data.mongodb.core.mapping.Document;/*** 圈子互动表（点赞，评论，喜欢）*/
@Data
@NoArgsConstructor
@AllArgsConstructor
@Document(collection = "comment")
public class Comment implements java.io.Serializable{private ObjectId id;private ObjectId publishId;    //动态idprivate Integer commentType;   //评论类型，1-点赞，2-评论，3-喜欢private String content;        //评论内容  private Long userId;           //评论人   private Long publishUserId;    //被评论人IDprivate Long created; 		   //发表时间private Integer likeCount = 0; //当前评论的点赞数}

Movement

对动态进行评论点赞操作 , 需要返回操作之后的数量 , 为了方便操作在Movement实体类中提供一个statisCount方法, 根据评论类型获取数量

package com.tanhua.model.mongo;import com.tanhua.model.enums.CommentType;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.bson.types.ObjectId;
import org.springframework.data.mongodb.core.mapping.Document;import java.util.List;//动态详情表
@Data
@NoArgsConstructor
@AllArgsConstructor
@Document(collection = "movement")
public class Movement implements java.io.Serializable {private ObjectId id; //主键id//redis实现，使用Mongodb实现private Long pid; //Long类型，用于推荐系统的模型(自动增长)private Long created; //发布时间private Long userId;private String textContent; //文字private List medias; //媒体数据，图片或小视频 urlprivate String longitude; //经度private String latitude; //纬度private String locationName; //位置名称//状态 0：未审（默认），1：通过，2：驳回private Integer state = 0;private Integer likeCount = 0; //点赞数private Integer commentCount = 0; //评论数private Integer loveCount = 0; //喜欢数//根据评论类型，获取对应的互动数量public Integer statisCount(Integer commentType) {if (commentType == CommentType.LIKE.getType()) {return this.likeCount;} else if (commentType == CommentType.COMMENT.getType()) {return this.commentCount;} else {return loveCount;}}
}

2.1.2 CommentVo对象

package com.tanhua.model.vo;import com.tanhua.model.domain.UserInfo;
import com.tanhua.model.mongo.Comment;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.beans.BeanUtils;import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.Date;@Data
@NoArgsConstructor
@AllArgsConstructor
public class CommentVo implements Serializable {private String id; //评论idprivate String avatar; //头像private String nickname; //昵称private String content; //评论private String createDate; //评论时间private Integer likeCount; //点赞数private Integer hasLiked; //是否点赞（1是，0否）public static CommentVo init(UserInfo userInfo, Comment item) {CommentVo vo = new CommentVo();BeanUtils.copyProperties(userInfo, vo);BeanUtils.copyProperties(item, vo);vo.setHasLiked(0);Date date = new Date(item.getCreated());vo.setCreateDate(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(date));vo.setId(item.getId().toHexString());return vo;}
}

2.1.3 CommentType枚举

package com.tanhua.model.enums;/*** 评论类型：1-点赞，2-评论，3-喜欢*/
public enum CommentType {LIKE(1), COMMENT(2), LOVE(3);int type;CommentType(int type) {this.type = type;}public int getType() {return type;}
}

2.2 动态评论

功能包括：查询评论列表，发布评论，对评论点赞和取消点赞。

2.2.1 评论列表查询

接口文档

接口地址：http://192.168.136.160:3000/project/19/interface/api/178

tanhua-app-server

在tanhua-app-server模块创建CommentController和CommentService完成评论列表查询

CommentController

package com.tanhua.server.controller;import com.tanhua.model.vo.PageResult;
import com.tanhua.server.service.CommentsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;import java.util.Map;@RestController
@RequestMapping("/comments")
public class CommentsController {@Autowiredprivate CommentsService commentsService;//分页查询评理列表@GetMappingpublic ResponseEntity findComments(@RequestParam(defaultValue = "1") Integer page,@RequestParam(defaultValue = "10") Integer pagesize,String movementId) {PageResult pr = commentsService.findComments(movementId,page,pagesize);return ResponseEntity.ok(pr);}
}

CommentService

package com.tanhua.server.service;import cn.hutool.core.collection.CollUtil;
import com.tanhua.commons.utils.Constants;
import com.tanhua.dubbo.api.CommentApi;
import com.tanhua.dubbo.api.UserInfoApi;
import com.tanhua.model.domain.UserInfo;
import com.tanhua.model.enums.CommentType;
import com.tanhua.model.mongo.Comment;
import com.tanhua.model.vo.CommentVo;
import com.tanhua.model.vo.ErrorResult;
import com.tanhua.model.vo.PageResult;
import com.tanhua.server.exception.BusinessException;
import com.tanhua.server.interceptor.UserHolder;
import lombok.extern.slf4j.Slf4j;
import org.apache.dubbo.config.annotation.DubboReference;
import org.bson.types.ObjectId;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;@Service
@Slf4j
public class CommentsService {@DubboReferenceprivate CommentApi commentApi;@DubboReferenceprivate UserInfoApi userInfoApi;@Autowiredprivate RedisTemplate redisTemplate;//分页查询评理列表public PageResult findComments(String movementId, Integer page, Integer pagesize) {//1、调用API查询评论列表List list = commentApi.findComments(movementId,CommentType.COMMENT,page,pagesize);//2、判断list集合是否存在if(CollUtil.isEmpty(list)) {return new PageResult();}//3、提取所有的用户id,调用UserInfoAPI查询用户详情List userIds = CollUtil.getFieldValues(list, "userId", Long.class);Map map = userInfoApi.findByIds(userIds, null);//4、构造vo对象List vos = new ArrayList<>();for (Comment comment : list) {UserInfo userInfo = map.get(comment.getUserId());if(userInfo != null) {CommentVo vo = CommentVo.init(userInfo, comment);vos.add(vo);}}//5、构造返回值return new PageResult(page,pagesize,0l,vos);}
}

tanhua-dubbo-interface

在tanhua-dubbo-interface模块创建CommentApi类, 定义查询评论列表的方法

CommentApi

public interface CommentApi {//分页查询List findComments(String movementId, CommentType comment, Integer page, Integer pagesize);
}

tanhua-dubbo-mongo

在tanhua-dubbo-mongo模块创建CommentApiImpl类, 实现查询评论列表的方法

CommentApiImpl

package com.tanhua.dubbo.api;import com.tanhua.model.enums.CommentType;
import com.tanhua.model.mongo.Comment;
import com.tanhua.model.mongo.Movement;
import org.apache.dubbo.config.annotation.DubboService;
import org.bson.types.ObjectId;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Sort;
import org.springframework.data.mongodb.core.FindAndModifyOptions;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;import java.util.List;@DubboService
public class CommentApiImpl implements  CommentApi {@Autowiredprivate MongoTemplate mongoTemplate;//分页查询public List findComments(String movementId, CommentType commentType, Integer page, Integer pagesize) {//1、构造查询条件Query query = Query.query(Criteria.where("publishId").is(new ObjectId(movementId)).and("commentType").is(commentType.getType())).skip((page -1) * pagesize).limit(pagesize).with(Sort.by(Sort.Order.desc("created")));//2、查询并返回return mongoTemplate.find(query,Comment.class);}
}

2.2.2 发布评论

接口文档

接口地址：http://192.168.136.160:3000/project/19/interface/api/181

tanhua-app-server

在tanhua-app-server模块的CommentController和CommentService完成发布评论

CommentController

@PostMapping
public ResponseEntity saveComments(@RequestBody Map map) {String movementId = (String )map.get("movementId");String comment = (String)map.get("comment");commentsService.saveComments(movementId,comment);return ResponseEntity.ok(null);
}

CommentService

//发布评论
public void saveComments(String movementId, String comment) {//1、获取操作用户idLong userId = UserHolder.getUserId();//2、构造CommentComment comment1 = new Comment();comment1.setPublishId(new ObjectId(movementId));comment1.setCommentType(CommentType.COMMENT.getType());comment1.setContent(comment);comment1.setUserId(userId);comment1.setCreated(System.currentTimeMillis());//3、调用API保存评论Integer commentCount = commentApi.save(comment1);log.info("commentCount = " + commentCount);
}

tanhua-dubbo-interface

在tanhua-dubbo-interface模块的CommentApi中定义发布评论的方法

CommentApi

//发布评论，并获取评论数量
Integer save(Comment comment1);

tanhua-dubbo-mongo

在tanhua-dubbo-mongo模块的CommentApiImpl中实现发布评论的方法 , 文本评论/点赞/喜欢通用方法

CommentApiImpl

//发布评论，并获取评论数量
public Integer save(Comment comment) {//1、查询动态Movement movement = mongoTemplate.findById(comment.getPublishId(), Movement.class);//2、向comment对象设置被评论人属性if(movement != null) {comment.setPublishUserId(movement.getUserId());}//3、保存到数据库mongoTemplate.save(comment);//4、更新动态表中的对应字段Query query = Query.query(Criteria.where("id").is(comment.getPublishId()));Update update = new Update();if(comment.getCommentType() == CommentType.LIKE.getType()) {update.inc("likeCount",1);}else if (comment.getCommentType() == CommentType.COMMENT.getType()){update.inc("commentCount",1);}else {update.inc("loveCount",1);}//设置更新参数FindAndModifyOptions options = new FindAndModifyOptions();options.returnNew(true) ;//获取更新后的最新数据Movement modify = mongoTemplate.findAndModify(query, update, options, Movement.class);//5、获取最新的评论数量，并返回return modify.statisCount(comment.getCommentType() );
}

2.3 动态点赞

2.3.1 动态点赞

接口文档

接口地址：http://192.168.136.160:3000/project/19/interface/api/157

tanhua-app-server

在tanhua-app-server模块的MovementController和MovementService完成动态点赞

MovementController

/*** 点赞*/
@GetMapping("/{id}/like")
public ResponseEntity like(@PathVariable("id") String movementId) {Integer likeCount = commentsService.likeComment(movementId);return ResponseEntity.ok(likeCount);
}

MovementService

//动态点赞
public Integer likeComment(String movementId) {//1、调用API查询用户是否已点赞Boolean hasComment = commentApi.hasComment(movementId,UserHolder.getUserId(),CommentType.LIKE);//2、如果已经点赞，抛出异常if(hasComment) {throw new BusinessException(ErrorResult.likeError());}//3、调用API保存数据到MongodbComment comment = new Comment();comment.setPublishId(new ObjectId(movementId));comment.setCommentType(CommentType.LIKE.getType());comment.setUserId(UserHolder.getUserId());comment.setCreated(System.currentTimeMillis());Integer count = commentApi.save(comment);//4、拼接redis的key，将用户的点赞状态存入redisString key = Constants.MOVEMENTS_INTERACT_KEY + movementId;String hashKey = Constants.MOVEMENT_LIKE_HASHKEY + UserHolder.getUserId();redisTemplate.opsForHash().put(key,hashKey,"1");return count;
}

tanhua-dubbo-interface

点赞也是一种评论 , 所以动态点赞的保存逻辑和评论发布基本相同 , 只是在保存之前需要判断是否已经点赞

在tanhua-dubbo-interface模块的在CommentApi中定义查询用户是否点赞该动态的方法

CommentApi

/*** 判断comment数据是否存在*/Boolean hasComment(String movementId, Long userId, CommentType like);

tanhua-dubbo-mongo

在tanhua-dubbo-mongo模块的CommentApiImpl中实现查询用户是否点赞该动态的方法

//判断comment数据是否存在
public Boolean hasComment(String movementId, Long userId, CommentType commentType) {Criteria criteria = Criteria.where("userId").is(userId).and("publishId").is(new ObjectId(movementId)).and("commentType").is(commentType.getType());Query query = Query.query(criteria);return mongoTemplate.exists(query,Comment.class); //判断数据是否存在
}

2.3.2 取消点赞

接口文档

接口地址：http://192.168.136.160:3000/project/19/interface/api/160

tanhua-app-server

在tanhua-app-server模块的MovementController和MovementService完成动态取消点赞

MovementController

/*** 评论取消点赞*/
@GetMapping("/{id}/dislike")
public ResponseEntity dislike(@PathVariable("id") String movementId) {Integer likeCount = commentsService.dislikeComment(movementId);return ResponseEntity.ok(likeCount);
}

MovementService

//取消点赞
public Integer dislikeComment(String movementId) {//1、调用API查询用户是否已点赞Boolean hasComment = commentApi.hasComment(movementId,UserHolder.getUserId(),CommentType.LIKE);//2、如果未点赞，抛出异常if(!hasComment) {throw new BusinessException(ErrorResult.disLikeError());}//3、调用API，删除数据，返回点赞数量Comment comment = new Comment();comment.setPublishId(new ObjectId(movementId));comment.setCommentType(CommentType.LIKE.getType());comment.setUserId(UserHolder.getUserId());Integer count = commentApi.delete(comment);//4、拼接redis的key，删除点赞状态String key = Constants.MOVEMENTS_INTERACT_KEY + movementId;String hashKey = Constants.MOVEMENT_LIKE_HASHKEY + UserHolder.getUserId();redisTemplate.opsForHash().delete(key,hashKey);return count;
}

tanhua-dubbo-interface

在tanhua-dubbo-interface模块的CommentApi定义取消动态点赞的方法

//删除comment数据
Integer delete(Comment comment);

tanhua-dubbo-mongo

在tanhua-dubbo-mongo模块的CommentApi实现取消动态点赞的方法

//删除
public Integer delete(Comment comment) {//1、删除Comment表数据Criteria criteria = Criteria.where("userId").is(comment.getUserId()).and("publishId").is(comment.getPublishId()).and("commentType").is(comment.getCommentType());Query query = Query.query(criteria);mongoTemplate.remove(query,Comment.class);//2、修改动态表中的总数量Query movementQuery = Query.query(Criteria.where("id").is(comment.getPublishId()));Update update = new Update();if(comment.getCommentType() == CommentType.LIKE.getType()) {update.inc("likeCount",-1);}else if (comment.getCommentType() == CommentType.COMMENT.getType()){update.inc("commentCount",-1);}else {update.inc("loveCount",-1);}//设置更新参数FindAndModifyOptions options = new FindAndModifyOptions();options.returnNew(true) ;//获取更新后的最新数据Movement modify = mongoTemplate.findAndModify(movementQuery, update, options, Movement.class);//5、获取最新的评论数量，并返回return modify.statisCount(comment.getCommentType() );
}

2.3.3 点赞标识

修改之前的查询圈子列表代码，从redis查询是否具有操作记录。

2.4 动态喜欢

喜欢和取消喜欢：和刚才的点赞与取消点赞类似！操作的类型comment_type=3,操作的字段loveCount

2.4.1 动态喜欢

接口文档

接口地址：http://192.168.136.160:3000/project/19/interface/api/163

tanhua-app-server

在tanhua-app-server模块的MovementController和MovementService完成动态喜欢

MovementController

/*** 喜欢动态*/
@GetMapping("/{id}/love")
public ResponseEntity love(@PathVariable("id") String movementId) {Integer likeCount = commentsService.loveComment(movementId);return ResponseEntity.ok(likeCount);
}

MovementService

//喜欢
public Integer loveComment(String movementId) {//1、调用API查询用户是否已点赞Boolean hasComment = commentApi.hasComment(movementId,UserHolder.getUserId(),CommentType.LOVE);//2、如果已经喜欢，抛出异常if(hasComment) {throw  new BusinessException(ErrorResult.loveError());}//3、调用API保存数据到MongodbComment comment = new Comment();comment.setPublishId(new ObjectId(movementId));comment.setCommentType(CommentType.LOVE.getType());comment.setUserId(UserHolder.getUserId());comment.setCreated(System.currentTimeMillis());Integer count = commentApi.save(comment);//4、拼接redis的key，将用户的点赞状态存入redisString key = Constants.MOVEMENTS_INTERACT_KEY + movementId;String hashKey = Constants.MOVEMENT_LOVE_HASHKEY + UserHolder.getUserId();redisTemplate.opsForHash().put(key,hashKey,"1");return count;
}

2.4.2 取消喜欢

接口文档

接口地址： http://192.168.136.160:3000/project/19/interface/api/166

tanhua-app-server

在tanhua-app-server模块的MovementController和MovementService完成动态取消喜欢

MovementController

/*** 取消动态喜欢*/
@GetMapping("/{id}/unlove")
public ResponseEntity unlove(@PathVariable("id") String movementId) {Integer likeCount = commentsService.disloveComment(movementId);return ResponseEntity.ok(likeCount);
}

MovementService

//取消喜欢
public Integer disloveComment(String movementId) {//1、调用API查询用户是否已点赞Boolean hasComment = commentApi.hasComment(movementId,UserHolder.getUserId(),CommentType.LOVE);//2、如果未点赞，抛出异常if(!hasComment) {throw new BusinessException(ErrorResult.disloveError());}//3、调用API，删除数据，返回点赞数量Comment comment = new Comment();comment.setPublishId(new ObjectId(movementId));comment.setCommentType(CommentType.LOVE.getType());comment.setUserId(UserHolder.getUserId());Integer count = commentApi.delete(comment);//4、拼接redis的key，删除点赞状态String key = Constants.MOVEMENTS_INTERACT_KEY + movementId;String hashKey = Constants.MOVEMENT_LOVE_HASHKEY + UserHolder.getUserId();redisTemplate.opsForHash().delete(key,hashKey);return count;
}

2.4.3 喜欢标识

修改之前的查询圈子列表代码，从redis查询是否具有喜欢操作记录。同点赞