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id
Long userId = UserHolder.getUserId();
//2、调用API查询当前用户好友发布的动态列表
List<Movement> 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<Movement> list) {
if(CollUtil.isEmpty(list)) {
return new PageResult();
}
//4、提取动态发布人的id列表
List<Long> userIds = CollUtil.getFieldValues(list, "userId", Long.class);
//5、根据用户的id列表获取用户详情
Map<Long, UserInfo> map = userInfoApi.findByIds(userIds, null);
//6、一个Movement构造一个vo对象
List<MovementsVo> 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<Movement> 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<Movement> 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<MovementTimeLine> lineList = mongoTemplate.find(query, MovementTimeLine.class);
//2、提取动态id列表
List<ObjectId> 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<Movement> 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" 15
String[] 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<Long> 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<Movement> findMovementsByPids(List<Long> pids);
//随机获取多条动态数据
List<Movement> 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<Movement> findMovementsByPids(List<Long> 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<Movement> 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<Movement> 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KEY
public static final String USER_FREEZE = "USER_FREEZE_";
//冻结HashKEY
public 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KEY
public static final String MOVEMENTS_INTERACT_KEY = "MOVEMENTS_INTERACT_";
//动态点赞用户HashKey
public static final String MOVEMENT_LIKE_HASHKEY = "MOVEMENT_LIKE_";
//动态喜欢用户HashKey
public static final String MOVEMENT_LOVE_HASHKEY = "MOVEMENT_LOVE_";
//视频点赞用户HashKey
public 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key
public static final String USER_LIKE_KEY="USER_LIKE_SET_";
//用户不喜欢Redis的key
public static final String USER_NOT_LIKE_KEY="USER_NOT_LIKE_SET_";
//关注用户的key
public 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id
private 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ID
private 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<String> medias; //媒体数据,图片或小视频 url
private 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id
private 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 {
@Autowired
private CommentsService commentsService;
//分页查询评理列表
@GetMapping
public 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 {
@DubboReference
private CommentApi commentApi;
@DubboReference
private UserInfoApi userInfoApi;
@Autowired
private RedisTemplate<String,String> 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<Comment> 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<Long> userIds = CollUtil.getFieldValues(list, "userId", Long.class);
Map<Long, UserInfo> map = userInfoApi.findByIds(userIds, null);
//4、构造vo对象
List<CommentVo> 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<Comment> 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 {
@Autowired
private MongoTemplate mongoTemplate;
//分页查询
public List<Comment> 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id
Long userId = UserHolder.getUserId();
//2、构造Comment
Comment 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Mongodb
Comment 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redis
String 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Mongodb
Comment 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redis
String 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