Springboot+Vue+axios实现文章收藏功能

@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
public class BlogCollection implements Serializable {

    private static final long serialVersionUID = 1L;

    @TableId(value = "id", type = IdType.AUTO)
    private Integer id;

    private Integer idBlog;

    private Integer idUser;

    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    @TableField(fill = FieldFill.INSERT)
    private LocalDateTime createTime;
}

public interface BlogCollectionMapper extends BaseMapper<BlogCollection> {
    @Insert("insert into 表名  values(字段名)")
    void addCollection(BlogCollection bc);
    //可以用mybatisPlus插入数据方便
}

public interface BlogCollectionService extends IService<BlogCollection> {
    void addCollection(BlogCollection bc);
}

public class BlogCollectionServiceImpl extends ServiceImpl<BlogCollectionMapper, BlogCollection> implements BlogCollectionService {

    @Autowired
    BlogCollectionMapper blogCollectionMapper;
    @Override
    public void addCollection(BlogCollection bc) {
        blogCollectionMapper.addCollection(bc);
    }
}

@RestController
@RequestMapping("/BlogCollection")
public class BlogCollectionController {
    @Resource
    BlogCollectionService blogCollectionService;
    @Resource
   BlogCollectionMapper BlogCollectionMapper;
    //收藏
    @PostMapping("/addBlogCollection")
    public Result<?> addBlog(@RequestBody BlogCollection blogCollection) {
        blogCollectionService.addCollection(blogCollection);
        return Result.success();
    }
}

<div class="button_content" style="flex: 1;line-height: 60px">
   <el-button @click="addCollection" v-if="collectionState===false" type="text" style="margin-left: 30px">
      <el-icon style="font-size:20px" color="#999aaa"><StarFilled /></el-icon>
       {{collectionCount }}
          </el-button>
          <el-button @click="delCollection" v-if="collectionState===true" type="text" style="margin-left: 30px">
            <el-icon style="font-size:20px" color="#999aaa"><StarFilled /></el-icon>
            {{collectionCount }}
          </el-button>
          <el-button type="text" @click="" style="margin-left: 30px">
            <el-icon style="font-size:20px" color="#999aaa"> <ChatDotRound /></el-icon>
            {{ messageCount }}
  </el-button>
</div>

 data(){
    return{
    collectionIds:{},
    collectionState:false,//默认是false则是可收藏，true的话就是已收藏
    }
    },
    methods:{
    add(){
      this.collectionIds.idBlog=this.$route.query.id //当前文章ID
      this.collectionIds.idUser=this.user.id //当前用户ID
    request.post("/BlogCollection/addBlogCollection",this.collectionIds).then(res=>{
        if (res.code === '0') {
          this.$message({
            message: "收藏成功",
            type: "success"
          });
          this.collectionState=true
          console.log(this.collectionState)
        } else {
          this.$message({
            message: res.msg,
            type: "error"
          });
        }
      })
    }
    }

getState(){
      let userJson=sessionStorage.getItem("user")
      let userid=JSON.parse(userJson).id
      request.get("/user/getState/"+userid).then(res=>{
        if(res.data!=null){        //从表中查询是否有记录，不为空把collectionState设置true
          this.collectionState=true
        }
        if(res.data.length){  //获取结果集如果存在则把collectionState设置true,防止重复收藏
          this.collectionState=true
        }
      })
    },