行为微服务leadnews-behavior

一、点赞/取消点赞、不喜欢/取消不喜欢、阅读次数

数据都存在redis中的hashmap中，以(key，field，value)的形式，如key是behavior_like + articleId，field是userId，value存dto。

点赞/取消点赞

package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApLikesBehaviorService;
import com.heima.common.constants.BehaviorConstants;
import com.heima.common.redis.CacheService;
import com.heima.model.behavior.dtos.LikesBehaviorDto;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.pojos.ApUser;
import com.heima.utils.common.thread.AppThreadLocalUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
@Slf4j
public class ApLikesBehaviorServiceImpl implements ApLikesBehaviorService {

    @Autowired
    private CacheService cacheService;

    /**
     * 用户点赞或取消点赞
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult like(LikesBehaviorDto dto) {
        //1、检查参数
        if(dto == null || dto.getArticleId() == null || checkParam(dto)){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }
        //2、是否登录
        ApUser user = AppThreadLocalUtil.getUser();
        if(user == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        //3、点赞或取消点赞
        if(dto.getOperation() == 0){
            //点赞
            Object obj = cacheService.hGet(BehaviorConstants.LIKE_BEHAVIOR + dto.getArticleId().toString(), user.getId().toString());
            if(obj != null){
                return ResponseResult.errorResult(AppHttpCodeEnum.DATA_EXIST, "已经点赞了");
            }
            //保存当前key
            log.info("保存当前key:{}, {}, {}", dto.getArticleId(), user.getId(), dto);
            cacheService.hPut(BehaviorConstants.LIKE_BEHAVIOR + dto.getArticleId().toString(), user.getId().toString(), JSON.toJSONString(dto));
        }else{
            //取消点赞，删除当前key
            log.info("删除当前key:{}, {}", dto.getArticleId(), user.getId());
            cacheService.hDelete(BehaviorConstants.LIKE_BEHAVIOR + dto.getArticleId().toString(), user.getId().toString());

        }

        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
    }
    /**
     * 检查参数
     * @param dto
     * @return
     */
    private boolean checkParam(LikesBehaviorDto dto) {
        //operation:0点赞，1取消点赞
        //type:0文章，1动态，2评论
        if(dto.getType() > 2 || dto.getType() < 0 || dto.getOperation() < 0 || dto.getOperation() > 1){
            return true;
        }
        return false;
    }
}

不喜欢/取消不喜欢

package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApUnlikesBehaviorService;
import com.heima.common.constants.BehaviorConstants;
import com.heima.common.redis.CacheService;
import com.heima.model.behavior.dtos.UnLikesBehaviorDto;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.pojos.ApUser;
import com.heima.utils.common.thread.AppThreadLocalUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Slf4j
@Transactional
public class ApUnlikesBehaviorServiceImpl implements ApUnlikesBehaviorService {

    @Autowired
    private CacheService cacheService;

    /**
     * dto:0不喜欢，1取消不喜欢
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult unLike(UnLikesBehaviorDto dto) {
        //参数验证
        if(dto == null || dto.getArticleId() == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }
        //是否登录
        ApUser user = AppThreadLocalUtil.getUser();
        if(user == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        if(dto.getType() == 0){
            log.info("保存key:{}，{}，{}", BehaviorConstants.UN_LIKE_BEHAVIOR + dto.getArticleId(), user.getId(), JSON.toJSONString(dto));
            //不喜欢
            cacheService.hPut(BehaviorConstants.UN_LIKE_BEHAVIOR + dto.getArticleId().toString(), user.getId().toString(), JSON.toJSONString(dto));
        }else{
            log.info("删除key:{}，{}", BehaviorConstants.UN_LIKE_BEHAVIOR + dto.getArticleId(), user.getId());
            //取消不喜欢，删除key
            cacheService.hDelete(BehaviorConstants.UN_LIKE_BEHAVIOR + dto.getArticleId().toString(), user.getId().toString());
        }


        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
    }
}

阅读记录

package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApReadBehaviorService;
import com.heima.common.constants.BehaviorConstants;
import com.heima.common.redis.CacheService;
import com.heima.model.behavior.dtos.ReadBehaviorDto;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.pojos.ApUser;
import com.heima.utils.common.thread.AppThreadLocalUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
@Slf4j
public class ApReadBehaviorServiceImpl implements ApReadBehaviorService {

    @Autowired
    private CacheService cacheService;

    @Override
    public ResponseResult readBehavior(ReadBehaviorDto dto) {
        //1.检查参数
        if (dto == null || dto.getArticleId() == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        //2.是否登录
        ApUser user = AppThreadLocalUtil.getUser();
        if (user == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        //更新阅读次数
        String readBehaviorJson = (String) cacheService.hGet(BehaviorConstants.READ_BEHAVIOR + dto.getArticleId().toString(), user.getId().toString());
        if (StringUtils.isNotBlank(readBehaviorJson)) {
            ReadBehaviorDto readBehaviorDto = JSON.parseObject(readBehaviorJson, ReadBehaviorDto.class);
            dto.setCount((short) (readBehaviorDto.getCount() + dto.getCount()));
        }
        // 保存当前key
        log.info("保存当前key:{} {} {}", dto.getArticleId(), user.getId(), dto);
        cacheService.hPut(BehaviorConstants.READ_BEHAVIOR + dto.getArticleId().toString(), user.getId().toString(), JSON.toJSONString(dto));
        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);

    }
}

 

 

二、关注/取消关注

ap_user_follow：关注的用户

ap_user_fan：你的粉丝

当你关注别人时，你成为别人的粉丝，follow别人。而被你关注的用户则多了一个粉丝fan。

取消关注同理：不follow该用户了，并且该用户会少一个fan。

在leadnews-user微服务中实现关注/取消关注。

package com.heima.user.service.impl;

import com.heima.common.constants.BehaviorConstants;
import com.heima.common.redis.CacheService;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.dtos.UserRelationDto;
import com.heima.model.user.pojos.ApUser;
import com.heima.user.service.UserRelationService;
import com.heima.utils.common.thread.AppThreadLocalUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
@Slf4j
public class UserRelationServiceImpl implements UserRelationService {

    @Autowired
    private RedisTemplate redisTemplate;

    @Autowired
    private CacheService cacheService;

    /**
     * 关注/取消关注
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult follow(UserRelationDto dto) {
        //参数验证, 0关注、1取关
        if(dto.getOperation() == null || dto.getOperation() < 0 || dto.getOperation() > 1){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }
        //判断是否登录
        ApUser user = AppThreadLocalUtil.getUser();
        if(user == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        Integer userId = user.getId();
        Integer authorId = dto.getAuthorId();
        //关注
        if(dto.getOperation() == 0){
            //我follow对方
            cacheService.zAdd(BehaviorConstants.APUSER_FOLLOW_RELATION + userId, authorId.toString(), System.currentTimeMillis());
            //该authorId多了一个fan
            cacheService.zAdd(BehaviorConstants.APUSER_FANS_RELATION + authorId, userId.toString(), System.currentTimeMillis());

        }else{
            //取消关注
            cacheService.zRemove(BehaviorConstants.APUSER_FOLLOW_RELATION + userId, authorId.toString());
            cacheService.zRemove(BehaviorConstants.APUSER_FANS_RELATION + authorId, userId.toString());
        }
        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
    }
}

 

三、文章收藏

 

package com.heima.article.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.article.service.ApCollectionService;
import com.heima.common.constants.BehaviorConstants;
import com.heima.common.redis.CacheService;
import com.heima.model.article.dtos.CollectionBehaviorDto;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.pojos.ApUser;
import com.heima.utils.common.thread.AppThreadLocalUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
@Slf4j
public class ApCollectionServiceImpl implements ApCollectionService {

    @Autowired
    private CacheService cacheService;

    /**
     * 收藏/不收藏
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult collection(CollectionBehaviorDto dto) {
        //参数验证
        if(dto == null || dto.getEntryId() == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }
        //判断是否登录
        ApUser user = AppThreadLocalUtil.getUser();
        if(user == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        //查询是否已经收藏
        String collectionJson = (String)cacheService.hGet(BehaviorConstants.COLLECTION_BEHAVIOR + user.getId(), dto.getEntryId().toString());
        if(StringUtils.isNotBlank(collectionJson) && dto.getOperation() == 0){
            //收藏过，还要收藏
            return ResponseResult.errorResult(AppHttpCodeEnum.DATA_EXIST, "已收藏");
        }

        //收藏
        if(dto.getOperation() == 0){
            cacheService.hPut(BehaviorConstants.COLLECTION_BEHAVIOR + user.getId(), dto.getEntryId().toString(), JSON.toJSONString(dto));
        }else{
            //取消收藏
            cacheService.hDelete(BehaviorConstants.COLLECTION_BEHAVIOR + user.getId(), dto.getEntryId().toString());
        }

        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
    }
}

 

四、行为数据回显

是否点赞、是否收藏、是否不喜欢。页面显示时会展示用户的行为数据。

@Autowired
private CacheService cacheService;

/**
 * 文章回显用户行为信息：是否like，是否关注等
 *
 * @param dto
 * @return
 */
@Override
public ResponseResult loadArticleBehavior(ArticleInfoDto dto) {
    //参数验证
    if(dto == null || dto.getArticleId() == null || dto.getAuthorId() == null){
        return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
    }
    boolean isfollow = false, islike = false, isunlike = false, iscollection = false;
    ApUser user = AppThreadLocalUtil.getUser();
    if(user != null){
        //用户登录了才有行为数据回显

        //是否点赞
        String likeBehaviorJson = (String) cacheService.hGet(BehaviorConstants.LIKE_BEHAVIOR + dto.getArticleId().toString(), user.getId().toString());
        if(StringUtils.isNotBlank(likeBehaviorJson)){
            islike = true;
        }

        //是否不喜欢
        String unlikeBehaviorJson = (String) cacheService.hGet(BehaviorConstants.UN_LIKE_BEHAVIOR + dto.getArticleId().toString(), user.getId().toString());
        if(StringUtils.isNotBlank(unlikeBehaviorJson)){
            isunlike = true;
        }

        //是否收藏
        String collectionBehavior = (String) cacheService.hGet(BehaviorConstants.COLLECTION_BEHAVIOR + user.getId(), dto.getArticleId().toString());
        if(StringUtils.isNotBlank(collectionBehavior)){
            iscollection = true;
        }

        //是否关注
        Double score = cacheService.zScore(BehaviorConstants.APUSER_FOLLOW_RELATION + user.getId(), dto.getAuthorId().toString());

        if(score != null){
            isfollow = true;
        }

    }
    Map<String, Object> resultMap = new HashMap<>();
    resultMap.put("isfollow", isfollow);
    resultMap.put("islike", islike);
    resultMap.put("isunlike", isunlike);
    resultMap.put("iscollection", iscollection);

    return ResponseResult.okResult(resultMap);


}