下载文件转换

src/components/downloadDicomAndNonedicom/index.vue

@@ -328,6 +328,7 @@ export default {
                         }/${this.$fd('IsDicom', true)}/${study.StudyCode
                         }/IMAGE/${fileName}`,
                       url: this.OSSclientConfig.basePath + instance.Path,
+                      IsEncapsulated: instance.IsEncapsulated
                     }
                     if (this.IsReadingTaskViewInOrder === 0) {
                       obj = {
@@ -336,6 +337,7 @@ export default {
                           true
                         )}/IMAGE/${fileName}`,
                         url: this.OSSclientConfig.basePath + instance.Path,
+                        IsEncapsulated: instance.IsEncapsulated
                       }
                     }
                     files.push(obj)

src/utils/stream.js

@@ -1,6 +1,7 @@
 import streamSaver from "streamsaver";
 import "streamsaver/examples/zip-stream.js";
 import store from '@/store'
+import dcmjs from './dcmUpload/dcmjs'
 streamSaver.mitm = `${window.location.origin}/mitm.html?version=2.0.0`
 // 下载文件并压缩
 function zipFiles(zipName, files) {
@@ -19,7 +20,10 @@ function zipFiles(zipName, files) {
                     if (fileInfo.done) {//迭代终止  
                         ctrl.close();
                     } else {
-                        let { name, url } = fileInfo.value;
+                        let { name, url, IsEncapsulated = false } = fileInfo.value;
+                        if (IsEncapsulated) {
+                            url = await downloadFileToUrl(url)
+                        }
                         // url = decodeUtf8(url); // 待定，可能做过特殊处理
                         return fetch(url).then(res => {
                             ctrl.enqueue({
@@ -99,6 +103,24 @@ function decodeUtf8(bytes) {
     str2.pop();
     return str2.join("/") + '/' + name;
 }
+// 下载文件进行修改并输出本地url
+function downloadFileToUrl(url) {
+    return new Promise((resolve, reject) => {
+        const xhr = new XMLHttpRequest();
+        xhr.open('GET', url);
+        xhr.responseType = 'arraybuffer';
+        xhr.onload = function () {
+            const arraybuffer = xhr.response;
+            let dataset = dcmjs.data.DicomMessage.readFile(arraybuffer)
+            let newDicomFile = dataset.write({ fragmentMultiframe: false }) // fragmentMultiframe 原始数据是否进行分割
+            const bufferArray = new Uint8Array(newDicomFile)
+            const blob = new Blob([bufferArray], { type: 'application/octet-stream' })
+            const href = URL.createObjectURL(blob)
+            resolve(href)
+        };
+        xhr.send();
+    })
+}
 export async function downLoadFile(file, name, type = 'file') {
     if (type === 'zip') return await zipFiles(name, file);
     return await updateFile(file, name)

src/views/trials/trials-panel/visit/qc-check/components/qualityAssurance.vue

@@ -1201,6 +1201,7 @@ export default {
                       true
                     )}/${study.StudyCode}_${study.StudyTime.split(' ')[0]}/IMAGE/${fileName}`,
                     url: this.OSSclientConfig.basePath + instance.Path,
+                    IsEncapsulated: instance.IsEncapsulated
                   }
                   files.push(obj)
                 })