[{"id":"b66f8b1e-cc14-4e89-9679-abd5687d283d","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"569bb90a-ea68-46c6-96f1-ab151c120714","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"5eb52f08-2d1a-4362-9ffc-4871bdc10f3f","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"341dd607-b97d-4d70-bde2-53acda6b6c95","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"05349273-414f-4208-9ea2-c4fc8f4ea2cb","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"86089f76-b778-4d52-821e-6f27de3df613","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"b81e4fd6-1fc5-43a0-a258-b6e16a5cbec6","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"8aa8ce31-43e4-438e-951f-241608435260","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"37343f41-6ec2-4c7e-b21d-2cc18d5ce1e0","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"5915e52f-64f8-4146-b8bd-81bead6324a3","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"836ba889-af9e-460d-a4cc-c24d922795f2","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"4ae14b06-bb68-4394-a210-a46b8f028346","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"d8f42066-e9dc-4411-bdcf-43b1a203370c","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"7ef86f16-b1a0-49f7-9592-612b9be02b25","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"b29c7775-a9a4-451e-a1b5-01d19ed5ca5e","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"e56f3989-8f81-46af-90fa-a4813eeb976f","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"2526c963-f170-45a8-923e-91b0712a9810","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"24575cf0-501a-44f9-8426-c40f8f4b5552","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"1a6f8d7f-acd6-42be-8c4f-f464c6218381","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"82b176fd-5cab-498c-909e-8fa7d29c38d8","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"1708b3a9-4f37-44a8-8f0e-f9a2d2e5d940","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"c9ac246e-29fb-4bc4-8231-8439795bb590","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"94f2a5c3-2539-436a-af75-23fbbd1a3957","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"d99594f4-2d40-4df4-9419-ba2ca6aa3f7f","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"fd66e72d-0f10-4f57-9807-6db26290ab2e","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"8f344863-503d-4bc3-a594-3815e7d55f5c","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"9be82601-de9d-4c18-948a-23ab6f4dd431","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"6495f3c0-b463-47e0-b08a-ca949672211e","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"b4bede08-3f08-4839-ba4a-abc7ac195bde","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"4afcdfc0-3ff5-4f2b-a223-f8fc042a5bbe","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"422062c4-fa40-4771-a86f-008efe6d86e5","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"d87e8013-86a7-4840-8d25-6f62e14eb4ac","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"a6acedfd-4043-4c64-a5d1-aec3326df9e7","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"dbdc0b24-06c4-48b9-8d6c-7455119dc773","tags":[{"product":null,"links":null,"id":"9e117e35-984a-4c14-95ca-ef0ec7b9fb60","name":"\u65B0\u589E","color":"DarkGreen","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"a3856849-954a-4cfc-96a6-382e530d3638","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]},{"id":"4a39306b-ffa5-433d-80a3-28e41f929b72","tags":[{"product":null,"links":null,"id":"a2f84374-4a3f-4d22-96fd-765e9de495bf","name":"\u66F4\u65B0","color":"Coral","productId":"098be112-50ec-44e4-b746-6bc8bf76af97"}]}]
        
(Showing Draft Content)

Vue 实现上传下载文件

需求:SpreadJS在Vue框架下如何实现服务端加载sjs、ssjson、xlsx文件


背景:

SpreadJS是一个纯前端的控件,用户可以在前端页面上进行数据的上传、填报等操作,但是最终还是需要将处理的数据进行持久化,SpreadJS是提供下载当前工作簿的功能的,但是将数据持久化在本地会有很多问题,可能造成数据汇报缓慢,数据的汇报遗漏等。而将数据持久化在服务端往往是更优的选择,这样持久化就完美解决了数据汇报缓慢遗漏等问题

解决方案:

这篇文章中提到了如何SpreadJS + Vue + Axios 实现服务端加载、上传Excel 。

在此基础上,本文将介绍如何实现SpreadJS + Vue + Axios 服务端加载、上传sjs、ssjson以及xlsx文件 。

1、在前端页面上,添加一个sjs文件,然后通过以下代码进行加载。

spread.open(file, function () {
   // success callback to do something 
}, function (e) {
   console.log(e); // error callback
});

通过以下代码进行导出

spread.save(function (blob) {
   // save blob to a file
   saveAs(blob, fileName);
}, function (e) {
   console.log(e);
});

同时,在v16版本中,对于导入导出ssjson与xlsx文件,有一个新的api接口:spread.import,spread.export

spread.import(file, function () {
   // success callback to do something
}, function (e) {
   console.log(e); // error callback
}, {
   fileType: GC.Spread.Sheets.FileType.excel
});
spread.export(function (blob) {
   // save blob to a file
   saveAs(blob, fileName);
}, function (e) {
   console.log(e);
}, {
   fileType: GC.Spread.Sheets.FileType.excel,
   includeBindingSource: true
});

以上两种导入接口,第一个参数均为file文件,如果此时不想要前端去上传文件,想从后端获取文件流,然后进行加载,那么可以如下操作

二、本示例用axios获取接口数据:

axios({
        method: "post",
        url: "spread/importFile",
        data: fd,
        responseType: "blob",
        headers: {
          cache: false,
          "Access-Control-Allow-Origin": "*",
          'X-Requested-With': 'XMLHttpRequest',
          crossDomain: true
        }
      }).then(
        response => {},err=>{console.log(err)
});

sjs:

var blob = new Blob([response.data], {type:'application/zip'});
console.time('渲染时间')
this.spread.open(blob,
  function () {
    console.timeEnd('渲染时间')
  },
  function (e) {
    console.log(e)
  },
  {openMode:GC.Spread.Sheets.OpenMode.incremental}
);

ssjson:

var blob = new Blob([response.data], {type:'text/plain;charset=utf-8'});
tempFileType = GC.Spread.Sheets.FileType.ssjson;
options = {
incrementalLoad: {
  loading: function (progress, args) {
    let sheetName = args.sheet.name();
    console.log(progress, sheetName);
  },
  loaded: function () {
    console.timeEnd('渲染时间')
  }
},
fileType: tempFileType
},
}
console.time('渲染时间')
spread.import(blob, function () {}, function (e) {
console.log(e); // error callback
}, options);

xlsx:

var blob = new Blob([response.data], {type:'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'});
options = {
  openMode:GC.Spread.Sheets.OpenMode.incremental,
  fileType: GC.Spread.Sheets.FileType.excel,
progress: (progressArgs) => {
    console.log(progressArgs)
},
}
console.time('渲染时间')
spread.import(blob, function () {
console.timeEnd('渲染时间')
}, function (e) {
console.log(e); // error callback
}, options);

其前端代码与后端代码见附件。

关于如何使用,见如下动图:

165732sge9q6xqg912k6qc


详细代码可以参考附件:

GCExcelAndSpreadJS_BigWorkbook.zip

axios.zip

作者: Grapecity.China | 审核:Clark.Pan | 更新时间:2023.12.24