按类别筛选，只有当该类别下只有一条记录的时候可以筛选出来

要求按照类别筛选，但是只有当该类别下数据库里只有一条记录的时候可以筛选出来，多条记录就不筛选。

showByType(type) {
                this.currentType = type;
                this.pageNumber = 1;
                this.pageSize = 20;
                this.$http({
                    method: "get",
                    headers: {
                        "Content-Type": "application/json",
                    },
                    url: this.baseUrl + '/article/findAllByTypes?type=' + type + '&page=' + this.pageNumber + "&limit=" + this.pageSize,
                }).then(
                    response => {
                        const data = response.data;
                        var temCommodities = [];
                        for (var i = 0; i < data['content'].length; i++) {
                            temCommodities.push(data['content'][i]);

                        }
                        this.commodities = temCommodities;
                        this.first = data['first'];
                        this.last = data['last'];
                    },
                );
            },

无报错。啊小白求教各位大佬到底为啥啊……

https://zhidao.baidu.com/question/11859110.html