java 1.8 集合排序和前端数组过滤,截取

--集合,对象,,通过对象ProductOrderToHis 的某个属性排序ProductOrderToHis :: getMesOrderNum

List<ProductOrderToHis> productOrderToHis = DataHandle.productOrderVoTransformToProductOrderToHis(productOrderVos);
//集合排序
return ResponseUtill.success(productOrderToHis.stream().sorted(Comparator.comparing(ProductOrderToHis :: getMesOrderNum).reversed()).collect(Collectors.toList()));

 

 

 

//新增页面的图片上传回调
saveResponseFn(response, file) {
  let data = response.data[0];

  let saveProdPhoto=this.saveProdPhotoUrl;
  if(saveProdPhoto !=""){
    this.saveProdPhotoUrl = saveProdPhoto+'|'+data;
  }else {
    this.saveProdPhotoUrl = data;
  }

  if(this.saveProdPhotoUrl !="") {
    let photoFileList = this.saveProdPhotoUrl.split("|");
    let newList = [];
    this.$utils.toArray(photoFileList).forEach((item) => {
      newList.push({url: this.fileUrl + item, name: item});
    });
    this.prodAddFiles = newList;
  }else {
    this.prodAddFiles = [];
  }

  let url = this.fileUrl + data;
  return {
    url: url,
    name: file.name,
    size: file.size,
  };

},


//删除保存页面产品图片
DeleteSavePicture(url) {
  let obj = {
    url,
  };
  this.$confirm("此操作将永久删除该文件, 是否继续?", "提示", {
    confirmButtonText: "确定",
    cancelButtonText: "取消",
    type: "warning",
  })
      .then(() => {
        this.$api.lncomingManagement.saveProdDeletePhoto(obj).then((res) => {

          if (res.data.code == 100) {
            this.$message({
              type: "success",
              message: "删除成功!",
            });
            //删除完,重新处理产品图片
            if(res.data.data.length>0){
              let data=res.data.data[0];
              if(this.saveProdPhotoUrl !=""){
                let prodFileList = this.saveProdPhotoUrl.split("|");
                prodFileList = prodFileList.filter(item => item != data);
                let newList = [];
                let partPhoto = '';

                this.$utils.toArray(prodFileList).forEach((item) => {
                  newList.push({url: this.fileUrl + item, name: item});
                  if(partPhoto){
                    partPhoto = partPhoto + '|'+ item;
                  }else {
                    partPhoto = item;
                  }
                });
                this.saveProdPhotoUrl = partPhoto;
                this.prodAddFiles = newList;

              }else{
                this.prodAddFiles=[];
              }

            }

          }
        });

      })
      .catch(() => {
        this.$message({
          type: "info",
          message: "已取消删除",
        });
      });
},