单文件上传的优化

src/util/file_md5.js

@@ -19,21 +19,8 @@ var fileMd5Sum = (file) => {
     });
 }
 
-const getFileChunk = (file, chunkSize) => {
-    const chunks = [];
-    const fileSize = file.size;
-    let currentChunkStart = 0;
-    while (currentChunkStart < fileSize) {
-        const chunkEnd = currentChunkStart + chunkSize;
-        const chunk = file.slice(currentChunkStart, chunkEnd);
-        chunks.push(chunk);
-        currentChunkStart = chunkEnd;
-    }
-    console.log("分片数量" + chunks.length);
-    return chunks;
-};
 
-const getFileMD5 = file => {
+const getFileMD5Progress = (file, progress) => {
     return new Promise((resolve, reject) => {
         const chunkSize = 2097152; // 每次读取2MB.
         const chunks = getFileChunk(file, chunkSize);
@@ -42,7 +29,7 @@ const getFileMD5 = file => {
         const loadNext = () => {
             const reader = new FileReader();
             reader.onload = e => {
-                console.log(currentChunkIndex);
+                progress && progress(Math.round(currentChunkIndex / chunks.length * 100) + "%");
                 currentChunkIndex++;
                 spark.append(e.target.result);
                 if (currentChunkIndex < chunks.length) {
@@ -58,8 +45,20 @@ const getFileMD5 = file => {
     });
 };
 
+const getFileChunk = (file, chunkSize) => {
+    const chunks = [];
+    const fileSize = file.size;
+    let currentChunkStart = 0;
+    while (currentChunkStart < fileSize) {
+        const chunkEnd = currentChunkStart + chunkSize;
+        const chunk = file.slice(currentChunkStart, chunkEnd);
+        chunks.push(chunk);
+        currentChunkStart = chunkEnd;
+    }
+    return chunks;
+};
 
 export {
     fileMd5Sum,
-    getFileMD5
+    getFileMD5Progress
 }

src/view/sjgl/wxk_public.vue

@@ -299,7 +299,7 @@ import {
 } from "../../util/http_util";
 import { uuid } from "../../util/data_util";
 import BigfileUpload from "../../components/common/bigfile_upload.vue";
-import {fileMd5Sum, getFileMD5} from '../../util/file_md5.js';
+import { fileMd5Sum, getFileMD5Progress } from '../../util/file_md5.js';
 
 export default {
     data() {
@@ -757,21 +757,33 @@ export default {
                                 module: this.module_name
                             };
 
-
+                            //单个文件上传
                             let load = startLoadingProgress("0%");
                             let self = this;
                             this.centerDialogVisible_add = false; 
-
-                            let fd = new FormData();
-                            load.text = "解析中";
-                            getFileMD5(this.form_add.fileList[0].raw)//获取md5
+                            load.text = "";
+                            let md5 = "";
+                            let file = null;
+                            //获取md5
+                            getFileMD5Progress(this.form_add.fileList[0].raw, (progress) => {
+                                load.text = "解析中:" + progress;
+                            }).then(res => {
+                                md5 = res.md5;
+                                file = res.file;
+                                return this.checkFileExist(md5);//检查文件是否存在
+                            })
                                 .then(result => {
-                                    fd.append("file", result.file);
-                                    fd.append("filename", result.md5);
+                                    if (!result) {
+                                        let fd = new FormData();
+                                        fd.append("file", file);
+                                        fd.append("filename", md5);
                                         fd.append("bucket", "MERGE");
                                         return fileUploadProgress("api/rest/file/upload", fd, res => {//文件上传
                                             load.text = "上传中:" + res;
                                         });
+                                    } else {
+                                        return Promise.reject({ message: "文件已存在" });
+                                    }
                                 })
                                 .then(res => {
                                     let fd1 = new FormData();