目录

1：点赞

1.1：动态点赞

1.1.1：分析&实现

1.2：取消点赞

1.2.1：分析&实现

2：喜欢

2.1：动态喜欢

2.1.1：分析&实现

2.2：取消喜欢

2.2.2：分析&实现

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1：点赞

1.1：动态点赞

1.1.1：分析&实现

接收到前端传入的动态id，到数据库修改对应的动态点赞数量，返回动态信息处理到redis缓存中，用来解决点赞前端点赞图标，点了动态赞要一直显示高亮。

    @GetMapping("/{id}/like")
    public ResponseEntity likemovement(@PathVariable("id") ObjectId id){
        Movement likemovement = movementService.likemovement(id, UserHolder.getUserId());
        return ResponseEntity.ok(likemovement.getLikeCount());
    }

    public Movement likemovement(ObjectId id,Long userId) {
        Movement movement = movementApi.likemovement(id);
        //将当前用户的点赞状态存入redis中
        String key = "MOVEMENTS_INTERACT_KEY"+movement.getId();
        String hashKey = "MOVEMENTS_LIKE_HASHKEY" + userId;
        stringRedisTemplate.opsForHash().put(key,hashKey,"1");
        return movement;
    }

Movement likemovement(ObjectId id);

    @Override
    public Movement likemovement(ObjectId id) {
        //通过动态id查询到该条动态
        Query query = new Query().addCriteria(Criteria.where("id").is(id));
        Movement movement = mongoTemplate.findOne(query, Movement.class);
        //得到点赞数量
        Integer likeCount = movement.getLikeCount();
        //修改数据库点赞数量
        Update update = new Update().set("likeCount", likeCount + 1);
        UpdateResult updateResult = mongoTemplate.updateFirst(query, update, Movement.class);
        return mongoTemplate.findOne(query,Movement.class);
    }

1.2：取消点赞

1.2.1：分析&实现

接收到前端传入的动态id，到数据库修改对应的动态点赞数量，返回动态信息处理到redis缓存中，用来解决取消点赞前端点赞图标，取消动态赞不要显示高亮。

    @GetMapping("/{id}/dislike")
    public ResponseEntity dislikemovement(@PathVariable("id") ObjectId id){
        Movement dislikemovement = movementService.dislikemovement(id, UserHolder.getUserId());
        return ResponseEntity.ok(dislikemovement.getLikeCount());
    }

    public Movement dislikemovement(ObjectId id, Long userId) {
        Movement movement = movementApi.dislikemovement(id);
        //将当前用户的点赞状态存入redis中
        String key = "MOVEMENTS_INTERACT_KEY"+movement.getId();
        String hashKey = "MOVEMENTS_LIKE_HASHKEY" + userId;
        stringRedisTemplate.opsForHash().delete(key,hashKey);
        return movement;
    }

    Movement dislikemovement(ObjectId id);

    @Override
    public Movement dislikemovement(ObjectId id) {
        //通过动态id查询到该条动态
        Query query = new Query().addCriteria(Criteria.where("id").is(id));
        Movement movement = mongoTemplate.findOne(query, Movement.class);
        //得到点赞数量
        Integer likeCount = movement.getLikeCount();
        //修改数据库点赞数量
        Update update = new Update().set("likeCount", likeCount - 1);
        UpdateResult updateResult = mongoTemplate.updateFirst(query, update, Movement.class);

        return mongoTemplate.findOne(query,Movement.class);
    }

2：喜欢

2.1：动态喜欢

2.1.1：分析&实现

接收到前端传入的动态id，到数据库修改对应的动态喜欢数量，返回动态信息处理到redis缓存中，用来解决喜欢前端喜欢图标，点了动态喜欢要一直显示高亮。

    @GetMapping("/{id}/love")
    public ResponseEntity loveemovement(@PathVariable("id") ObjectId id){
        Movement loveemovement = movementService.loveemovement(id, UserHolder.getUserId());
        return ResponseEntity.ok(loveemovement.getLoveCount());
    }

    public Movement loveemovement(ObjectId id, Long userId) {
        Movement movement = movementApi.loveemovement(id);
        //将当前用户的点赞状态存入redis中
        String key = "MOVEMENTS_LOVE_KEY"+movement.getId();
        String hashKey = "MOVEMENTS_LOVE_HASHKEY" + userId;
        stringRedisTemplate.opsForHash().put(key,hashKey,"1");
        return movement;
    }

Movement loveemovement(ObjectId id);

    @Override
    public Movement loveemovement(ObjectId id) {
        //通过动态id查询到该条动态
        Query query = new Query().addCriteria(Criteria.where("id").is(id));
        Movement movement = mongoTemplate.findOne(query, Movement.class);
        //得到点赞数量
        Integer loveCount = movement.getLoveCount();
        //修改数据库点赞数量
        Update update = new Update().set("loveCount", loveCount + 1);
        UpdateResult updateResult = mongoTemplate.updateFirst(query, update, Movement.class);
        return mongoTemplate.findOne(query,Movement.class);
    }

2.2：取消喜欢

2.2.2：分析&实现

接收到前端传入的动态id，到数据库修改对应的动态喜欢数量，返回动态信息处理到redis缓存中，用来解决喜欢前端喜欢图标，取消动态喜欢不显示高亮。

    @GetMapping("/{id}/unlove")
    public ResponseEntity unlovemovement(@PathVariable("id") ObjectId id){
        Movement unlovemovement = movementService.unlovemovement(id, UserHolder.getUserId());
        return ResponseEntity.ok(unlovemovement.getLoveCount());
    }

    public Movement unlovemovement(ObjectId id, Long userId) {
        Movement movement = movementApi.unlovemovement(id);
        //将当前用户的点赞状态存入redis中
        String key = "MOVEMENTS_LOVE_KEY"+movement.getId();
        String hashKey = "MOVEMENTS_LOVE_HASHKEY" + userId;
        stringRedisTemplate.opsForHash().delete(key,hashKey);
        return movement;
    }

Movement unlovemovement(ObjectId id);

    @Override
    public Movement unlovemovement(ObjectId id) {
        //通过动态id查询到该条动态
        Query query = new Query().addCriteria(Criteria.where("id").is(id));
        Movement movement = mongoTemplate.findOne(query, Movement.class);
        //得到点赞数量
        Integer loveCount = movement.getLoveCount();
        //修改数据库点赞数量
        Update update = new Update().set("loveCount", loveCount - 1);
        UpdateResult updateResult = mongoTemplate.updateFirst(query, update, Movement.class);
        return mongoTemplate.findOne(query,Movement.class);
    }