feat: 更新文件上传支持白名单，支持自定义上传文件大小限制

src/components/app-file-upload/app-file-upload.less

@@ -13,6 +13,14 @@
       }
     }
   }
+  .has-uploadtip>.el-upload{
+    text-align: left;
+  }
+  .upload-description{
+    font-size: 12px;
+    opacity: 0.5;
+    color: #000;
+  }
 }
 .upload-preview-modal{
   .ivu-modal{

src/components/app-file-upload/app-file-upload.vue

@@ -6,6 +6,7 @@
         </el-col>
         <el-col :span="(rowPreview && files.length > 0) ? 12 : 24" class="upload-col">
           <el-upload
+            :class="{'has-uploadtip': !!uploadTip}"
             :disabled="disabled"
             :file-list="files"
             :action="getAction()"
@@ -21,7 +22,8 @@
                 <el-button v-if="!isdrag" size='small' icon='el-icon-upload2' :disabled="disabled">{{this.$t('app.fileUpload.caption')}}</el-button>
                 <i v-if="isdrag" class="el-icon-upload2"></i>
                 <div v-if="isdrag" class="el-upload__text" v-safe-html="$t('components.appFileUpload.uploadText')"></div>
-          </el-upload>
+                <div class="upload-description">{{uploadTip}}</div>
+            </el-upload>
         </el-col>
       </el-row>
       <modal width="80%" v-model="dialogVisible" footer-hide class-name='upload-preview-modal'>
@@ -192,6 +194,26 @@ export default class AppFileUpload extends Vue {
      */
     @Prop() public ownerid!: string;
 
+            /**
+     * 默认文件最大上传大小
+     */
+     @Prop() public defaultSize?:number | string ;
+
+    /**   
+     * 允许上传的文件类型
+     */
+    @Prop({default: ''}) public whiteList?:string;
+
+    /**   
+     * 上传描述
+     */
+    @Prop({default:''}) public uploadDescription?:string;
+
+    /**
+     * 上传文件提示
+     */
+    public uploadTip:string = ''
+
     /**
      * 文件列表
      *
@@ -300,9 +322,18 @@ export default class AppFileUpload extends Vue {
             })    
         }
         this.files.forEach((file: any) => {
-            let url = `${Environment.BaseUrl}${Environment.ExportFile}/${file.id}`;
+            let downloadUrl = `${Environment.BaseUrl}${Environment.ExportFile}/${file.id}`;
+              const entityName = this.appEntityService.APPDENAME;
+                const base64 = `${file.id}|${entityName}|${this.ownerid}|${this.context.srfpersonid || this.context.srfuserid}`;
+                let url =`${downloadUrl}?key=${window.btoa(base64)}${Math.floor(
+                    1000 + Math.random() * 9000,
+                )}`
+
+
             if (this.export_params.length > 0) {
-                url +='?';
+                if (!url.includes('?')) {
+                    url +='?';
+                }
             this.export_params.forEach((item:any,i:any)=>{
                 url += `${Object.keys(item)[0]}=${Object.values(item)[0]}`;
                 if(i<this.export_params.length-1){
@@ -314,6 +345,32 @@ export default class AppFileUpload extends Vue {
         });
     }
 
+      /**
+       *  计算上传配置
+       */
+       public calcFileUploadConfig(){
+        const config:{
+            whiteList:string[],
+            maxSize:number,
+            description:string
+        } = {
+            whiteList:[],
+            maxSize:10,
+            description:''
+        }
+        const _whiteList = this.whiteList || Environment.fileUploadWhiteList;
+        const _maxSize = this.defaultSize || Environment.fileUploadMaxSize;
+        const _description = this.uploadDescription || Environment.fileUploadDescription;
+        if(_whiteList){
+            config.whiteList = _whiteList.split(',');
+        }
+        config.maxSize = Number(_maxSize);
+        config.description = _description;
+        if(!_description && _whiteList && _whiteList.length > 0){
+            config.description = `${this.$t('components.appFileUpload.supportextends')}： ${_whiteList.split(',').map(type => `.${type?.toLowerCase()}`).join(' ')}，${this.$t('components.appFileUpload.singlefile')}${_maxSize}MB`;
+        }
+        return config;
+      }
     
 
     /**
@@ -332,6 +389,8 @@ export default class AppFileUpload extends Vue {
                 }
             });
         }
+        const config = this.calcFileUploadConfig();
+        this.uploadTip = config.description;
     }
 
     /**
@@ -403,12 +462,27 @@ export default class AppFileUpload extends Vue {
      * @memberof AppFileUpload
      */
     public beforeUpload(file: any) {
+        const config = this.calcFileUploadConfig();
         const blackList = Environment.blackList;
+        // 白名单
+        const whiteList = config.whiteList;
         const fileName = file.name?.trim().toLowerCase();
-        if (Array.isArray(blackList) && typeof fileName === 'string' && blackList.some(item => fileName.endsWith(`.${item}`))) {
+        const blackResult = Array.isArray(blackList) && typeof fileName === 'string' && blackList.some(item => fileName.endsWith(`.${item}`));
+        const whiteResult = Array.isArray(whiteList) && typeof fileName === 'string' && whiteList.some(item => fileName.endsWith(`.${item}`));
+
+        if(whiteList.length > 0 && !whiteResult){
+            Message.error(`${fileName} 文件格式不正确，请上传 ${whiteList.join('、')}类型的文件`);
+            return false;
+        }
+
+        if (blackResult && !whiteResult) {
             Message.error(`不可上传 ${blackList.join('、')}类型的文件！`);
             return false;
         }
+        if(file.size > config.maxSize * 1024 * 1024){
+            Message.error(`${fileName}超出文件限制大小，单个文件不能超过${config.maxSize}MB`);
+            return false
+        }
         if(this.imageOnly){
             const imageTypes = ["image/jpeg" , "image/gif" , "image/png" , "image/bmp"];
             const isImage = imageTypes.some((type: any)=> Object.is(type, file.type));
@@ -490,9 +564,17 @@ export default class AppFileUpload extends Vue {
         const downloadUrl = `${(window as any).Environment.ExportFile}`+ '/' + id + '/' + name;
         const entityName = this.appEntityService.APPDENAME;
         const base64 = `${id}|${entityName}|${this.ownerid}|${this.context.srfpersonid || this.context.srfuserid}`;
-        const url =`${downloadUrl}?key=${window.btoa(base64)}${Math.floor(
+        let url =`${downloadUrl}?key=${window.btoa(base64)}${Math.floor(
             1000 + Math.random() * 9000,
         )}`
+        if (this.export_params.length > 0) {
+              this.export_params.forEach((item:any,i:any)=>{
+                  url += `${Object.keys(item)[0]}=${Object.values(item)[0]}`;
+                  if(i<this.export_params.length-1){
+                      url += '&';
+                  }
+              })
+            }
             // 发送get请求
             Axios.get(url, {
                 responseType: 'arraybuffer',