vue2 点击按钮下载文件保存到本地（后台返回的zip压缩流）

// import './mock/index.js';  // 该项目所有请求使用mockjs模拟 去掉mock
   
   

?页面url下载

   
   

     
     

      
      

     
     
     
     

      
      

       
       console.log(
       
       'res', res)
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       /
       
       /token 是使页面不用去登录了
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       if (res.
       
       file) {
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
          window.
       
       location.href 
       
       =
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
          Vue.
       
       prototype.$config.VUE_APP_BASE_IDSWAPI 
       
       +
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
          Vue.
       
       prototype.$config.VUE_APP_IDSW 
       
       +
      
      
     
     

     
     

      
      

     
     
     
     

      
      
   
       
       '/service/models/download?action=zip&filepath=' 
       
       +
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
          encodeURIComponent(encodeURIComponent(res[
       
       'file'])) 
       
       +
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       `
       
       &token
       
       =${localStorage.getItem(
       
       'inmsToken')}
       
       &accessToken
       
       =${localStorage.getItem(
       
       'accessToken')}`
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       }
      
      
     
     
   
   

responseType: "blob",???

let blob = new Blob([response.data], { type: "application/zip" }); //注意是response 或者?response.data
let url = window.URL.createObjectURL(blob);? 这三句最重要！！！

   
   

     
     

      
      

     
     
     
     

      
      

       
       /
       
       /普通代码
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       axios.post(postUrl, params, {responseType: 
       
       'arraybuffer'}).
       
       then(res 
       
       =
       
       > {
      
      
     
     

     
     

      
      

     
     
     
     

      
      
    
       
       /
       
       / 创建Blob对象，设置文件类型
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
           let blob 
       
       = new Blob([res.
       
       data], {
       
       type: 
       
       "application/vnd.ms-excel"})
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
           let objectUrl 
       
       = URL.createObjectURL(blob) 
       
       /
       
       / 创建URL
      
      
     
     

     
     

      
      

     
     
     
     

      
      
    
       
       location.href 
       
       = objectUrl;
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
           URL.revokeObjectURL(objectUrl); 
       
       /
       
       / 释放内存
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       })
      
      
     
     
   
   

   
   

     
     

      
      

     
     
     
     

      
      

       
       downloadAll() {
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
             axios({
      
      
     
     

     
     

      
      

     
     
     
     

      
      
        
       
       method: 
       
       "get",
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               url: 
       
       "api/TemplateDownload/GetAllTemplateZIP",
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               headers: {
      
      
     
     

     
     

      
      

     
     
     
     

      
      
          
       
       "content-type": 
       
       "application/json; charset=utf-8",
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 Authorization: Cookies.
       
       get(
       
       "token") || 
       
       "",
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               },
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               responseType: 
       
       "blob",
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
             })
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               .
       
       then((response) 
       
       =
       
       > {
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 let blob 
       
       = new Blob([response.
       
       data], { 
       
       type: 
       
       "application/zip" });
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 let url 
       
       = window.URL.createObjectURL(blob);
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 const link 
       
       = document.createElement(
       
       "a"); 
       
       /
       
       / 创建a标签
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 link.href 
       
       = url;
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 link.download 
       
       = 
       
       "模板下载"; 
       
       /
       
       / 重命名文件
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 link.click();
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 URL.revokeObjectURL(url); 
       
       /
       
       / 释放内存
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 this.checkList 
       
       = [];
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               })
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               .catch((
       
       error) 
       
       =
       
       > {
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 console.log(
       
       error.
       
       data);
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               });
      
      
     
     

     
     

      
      

     
     
     
     

      
      
        
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
           },
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       /
       
       /excel 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       let blob 
       
       = new Blob([response.
       
       data], { 
       
       type: 
       
       "application/vnd.ms-excel" });
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       dl() {
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
             axios({
      
      
     
     

     
     

      
      

     
     
     
     

      
      
        
       
       method: 
       
       "get",
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               url: 
       
       "http://10.180.170.3:8794/tRptMwStdClt/exportData?time=202104",
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               responseType: 
       
       "arraybuffer",
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
             })
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               .
       
       then((response) 
       
       =
       
       > {
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 console.log(response);
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 let blob 
       
       = new Blob([response.
       
       data], {
      
      
     
     

     
     

      
      

     
     
     
     

      
      
            
       
       type: 
       
       "application/vnd.ms-excel",
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 });
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 let url 
       
       = window.URL.createObjectURL(blob);
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 const link 
       
       = document.createElement(
       
       "a"); 
       
       /
       
       / 创建a标签
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 link.href 
       
       = url;
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 link.download 
       
       = 
       
       "模板下载"; 
       
       /
       
       / 重命名文件
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 link.click();
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 URL.revokeObjectURL(url); 
       
       /
       
       / 释放内存
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 this.checkList 
       
       = [];
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               })
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               .catch((
       
       error) 
       
       =
       
       > {
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 console.log(
       
       error.
       
       data);
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               });
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
           },
      
      
     
     
   
   

获取到了后台传过来的excel文件 前端用vue怎么接收并导出？ - 中文 - Vue Forum

vue.js前端实现excel表格导出和获取headers里的信息 - 五个半柠檬 - OSCHINA - 中文开源技术交流社区

java后台需要设置

   
   

     
     

      
      

     
     
     
     

      
      
 
       
       response.addHeader(
       
       "Content-Disposition", 
       
       "attachment;filename=" + fileName + 
       
       ".xlsx");
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
       
       response.setHeader(
       
       "Access-Control-Expose-Headers",
       
       "Content-Disposition");
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       才能获取到文件名等信息
      
      
     
     
   
   

   
   

     
     

      
      

     
     
     
     

      
      
 
       
       /
       
       / 导出execel
       
       2
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
           handleExcel() {
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
             this.$http({
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               url: this.$http.adornUrl(url),
      
      
     
     

     
     

      
      

     
     
     
     

      
      
        
       
       method: 
       
       "post",
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               responseType: 
       
       "blob",
       
       /
       
       /!!!!
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               params: this.$http.adornParams({
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 userAccount: this.userName,
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               }),
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
             }).
       
       then((res) 
       
       =
       
       > {
      
      
     
     

     
     

      
      

     
     
     
     

      
      
        
       
       /
       
       / console.log(res, 
       
       "res");
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               let blob 
       
       = new Blob([res.
       
       data], { 
       
       type: 
       
       "application/vnd.ms-excel" });
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               let fileName 
       
       = decodeURI(
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                   response.headers[
       
       "content-disposition"].split(
       
       ";")[
       
       1].split(
       
       "=")[
       
       1]
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
                 );
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               let url 
       
       = window.URL.createObjectURL(blob);
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               const link 
       
       = document.createElement(
       
       "a"); 
       
       /
       
       / 创建a标签
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               link.href 
       
       = url;
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               link.download 
       
       = fileName; 
       
       /
       
       / 重命名文件
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               link.click();
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
               URL.revokeObjectURL(url); 
       
       /
       
       / 释放内存
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
             });
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
           },