{"id":129,"date":"2022-12-08T10:28:59","date_gmt":"2022-12-08T02:28:59","guid":{"rendered":"https:\/\/www.icfyless.com\/?p=129"},"modified":"2022-12-08T10:28:59","modified_gmt":"2022-12-08T02:28:59","slug":"antdv%e7%9a%84upload%e7%bb%84%e4%bb%b6%e5%ae%9e%e7%8e%b0%e5%89%8d%e7%ab%af%e5%8e%8b%e7%bc%a9%e5%9b%be%e7%89%87%e5%b9%b6%e8%87%aa%e5%ae%9a%e4%b9%89%e4%b8%8a%e4%bc%a0%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/www.icfyless.com\/index.php\/2022\/12\/08\/antdv%e7%9a%84upload%e7%bb%84%e4%bb%b6%e5%ae%9e%e7%8e%b0%e5%89%8d%e7%ab%af%e5%8e%8b%e7%bc%a9%e5%9b%be%e7%89%87%e5%b9%b6%e8%87%aa%e5%ae%9a%e4%b9%89%e4%b8%8a%e4%bc%a0%e5%8a%9f%e8%83%bd\/","title":{"rendered":"antdv\u7684Upload\u7ec4\u4ef6\u5b9e\u73b0\u524d\u7aef\u538b\u7f29\u56fe\u7247\u5e76\u81ea\u5b9a\u4e49\u4e0a\u4f20\u529f\u80fd"},"content":{"rendered":"

antdv\u7684Upload\u7ec4\u4ef6\u5b9e\u73b0\u524d\u7aef\u538b\u7f29\u56fe\u7247\u5e76\u81ea\u5b9a\u4e49\u4e0a\u4f20\u529f\u80fd<\/h2>\n

Ant Design of Vue\u7684Upload\u7ec4\u4ef6\u6709\u51e0\u4e2a\u91cd\u8981\u7684api\u5c5e\u6027\uff1a<\/p>\n

\n

beforeUpload<\/code>: \u4e0a\u4f20\u6587\u4ef6\u4e4b\u524d\u7684\u94a9\u5b50\u51fd\u6570\uff0c\u652f\u6301\u8fd4\u56de\u4e00\u4e2aPromise\u5bf9\u8c61\u3002<\/p>\n

customRequest<\/code>: \u8986\u76d6\u7ec4\u4ef6\u9ed8\u8ba4\u7684\u4e0a\u4f20\u884c\u4e3a\uff0c\u5b9e\u73b0\u81ea\u5b9a\u4e49\u7684\u4e0a\u4f20\u8bf7\u6c42\u3002<\/p>\n<\/blockquote>\n

\u529f\u80fd\u5b9e\u73b0\u539f\u7406<\/h4>\n

\u5728\u4e0a\u4f20\u56fe\u7247\u524d\u83b7\u53d6\u8be5\u56fe\u7247\u7684\u6587\u4ef6\u6d41\uff08beforeUpload<\/code>\u4e2d\u83b7\u53d6\uff09\uff0c\u5bf9\u8fd9\u4e2a\u6587\u4ef6\u6d41\u8fdb\u884c\u538b\u7f29\u64cd\u4f5c\uff0c\u518d\u5c06\u538b\u7f29\u540e\u7684\u6587\u4ef6\u6d41\u4f20\u8fc7\u53bb\uff08resolve(newFile)<\/code>\uff09\uff0c\u6700\u540e\u8fdb\u884c\u81ea\u5b9a\u4e49\u7684\u4e0a\u4f20\u8bf7\u6c42\uff08customRequest<\/code>\u4e2d\u5b9e\u73b0\uff09\u3002<\/p>\n

\u56fe\u7247\u9884\u89c8\u65b9\u5f0f<\/h4>\n

\u524d\u7aef\u672c\u5730\u56fe\u7247\u7684\u9884\u89c8\u5219\u53ef\u4ee5\u9009\u62e9blob<\/code>\u6216\u8005base64<\/code>\u7684\u65b9\u5f0f\uff0c\u672c\u6587\u63a8\u8350\u4f7f\u7528blob<\/code>\u65b9\u5f0f\u6765\u9884\u89c8\u56fe\u7247\u3002<\/p>\n

\u90e8\u5206\u4ee3\u7801<\/h4>\n

html<\/p>\n

<template>\n  <div>\n    <a-spin :spinning="isShowSpinning">\n      <img\n        v-if="imageUrl"\n        :src="imageUrl"\n        style="width: 200px; height: 200px; margin-right: 10px;"\n      \/>\n      <a-upload\n        accept="image\/*"\n        :beforeUpload="beforeImageUpload"\n        :customRequest="customImageRequest"\n      >\n        <a-button type="primary">\n          <a-icon type="upload" \/>\u4e0a\u4f20\n        <\/a-button>\n      <\/a-upload>\n    <\/a-spin>\n  <\/div>\n<\/template><\/code><\/pre>\n
api<\/p>\n
import request from '@\/utils\/request'\n\nconst api = {\n    uplodBackName: '\/biz\/uplodBackName'\n}\n\nexport function getUplodBackName (parameter) {\n  return request({\n    url: api.uplodBackName,\n    method: 'post',\n    \/\/ \u4f20\u8f93\u6587\u4ef6\u6d41\u9700\u8981\u5355\u72ec\u8bbe\u7f6e\u8bf7\u6c42\u5934\n    headers: {\n      'Content-Type': 'multipart\/form-data'\n    },\n    data: parameter\n  })\n}<\/code><\/pre>\n
js<\/p>\n
<script>\nimport { getUplodBackName } from '@\/api\/biz\/manage'\n\nexport default {\n  components: {},\n  data () {\n    return {\n      imageUrl: '',\n      isShowSpinning: false\n    }\n  },\n  methods: {\n    \/\/ \u4e0a\u4f20\u56fe\u7247\u524d\u7684\u94a9\u5b50\u51fd\u6570\n    beforeImageUpload (file, fileList) {\n      return new Promise(async (resolve, reject) => {\n        if (!file.type.includes('image')) {\n          this.$message.warning('\u8bf7\u4e0a\u4f20\u56fe\u7247')\n          reject(new Error('\u8bf7\u4e0a\u4f20\u56fe\u7247'))\n          return\n        }\n        this.isShowSpinning = true\n        const newFile = await this.compressImg(file)\n        resolve(newFile)\n      })\n    },\n    \/\/ \u81ea\u5b9a\u4e49\u7684\u4e0a\u4f20\u8bf7\u6c42\n    customImageRequest (info) {\n      const { file } = info\n      \/\/ blob\u65b9\u5f0f\u9884\u89c8\u56fe\u7247\n      this.imageUrl = window.URL.createObjectURL(file)\n      \/\/ \u7ec4\u88c5\u6570\u636e\n      const formData = new FormData()\n      formData.append('files', file)\n      \/\/ \u53d1\u9001\u8bf7\u6c42\n      getUplodBackName(formData).then(res => {\n        this.$message.success('\u4e0a\u4f20\u6210\u529f')\n      }).catch(() => {\n        this.$message.warning('\u4e0a\u4f20\u5931\u8d25')\n      }).finally(() => {\n        this.isShowSpinning = false\n      })\n    },\n    \/\/ base64\u8f6c\u7801\uff08\u538b\u7f29\u5b8c\u6210\u540e\u7684\u56fe\u7247\u4e3abase64\u7f16\u7801\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u5c06base64\u7f16\u7801\u8f6c\u56defile\u6587\u4ef6\uff09\n    dataURLtoFile (dataurl, filename) {\n      var arr = dataurl.split(',')\n      var mime = arr[0].match(\/:(.*?);\/)[1]\n      var bstr = atob(arr[1])\n      var n = bstr.length\n      var u8arr = new Uint8Array(n)\n      while (n--) {\n        u8arr[n] = bstr.charCodeAt(n)\n      }\n      return new File([u8arr], filename, { type: mime })\n    },\n    \/\/ \u56fe\u7247\u538b\u7f29\u51fd\u6570\n    compressImg (file) {\n      const that = this\n      var files\n      var fileSize = parseFloat(parseInt(file['size']) \/ 1024 \/ 1024).toFixed(2)\n      var read = new FileReader()\n      read.readAsDataURL(file)\n      return new Promise(function (resolve, reject) {\n        read.onload = function (e) {\n          var img = new Image()\n          img.src = e.target.result\n          img.onload = function () {\n            \/\/ \u9ed8\u8ba4\u6309\u6bd4\u4f8b\u538b\u7f29\n            var w = this.width\n            var h = this.height\n            \/\/ \u751f\u6210canvas\n            var canvas = document.createElement('canvas')\n            var ctx = canvas.getContext('2d')\n            var base64\n            \/\/ \u521b\u5efa\u5c5e\u6027\u8282\u70b9\n            canvas.setAttribute('width', w)\n            canvas.setAttribute('height', h)\n            ctx.drawImage(this, 0, 0, w, h)\n            if (fileSize < 1) {\n              \/\/ \u5982\u679c\u56fe\u7247\u5c0f\u4e8e\u4e00\u5146 \u90a3\u4e48\u538b\u7f290.5\n              base64 = canvas.toDataURL(file['type'], 0.5)\n            } else if (fileSize > 1 && fileSize < 2) {\n              \/\/ \u5982\u679c\u56fe\u7247\u5927\u4e8e1M\u5e76\u4e14\u5c0f\u4e8e2M \u90a3\u4e48\u538b\u7f290.5\n              base64 = canvas.toDataURL(file['type'], 0.5)\n            } else {\n              \/\/ \u5982\u679c\u56fe\u7247\u8d85\u8fc72m \u90a3\u4e48\u538b\u7f290.2\n              base64 = canvas.toDataURL(file['type'], 0.2)\n            }\n            \/\/ \u56de\u8c03\u51fd\u6570\u8fd4\u56defile\u7684\u503c\uff08\u5c06base64\u7f16\u7801\u8f6c\u6210file\uff09\n            files = that.dataURLtoFile(base64, file.name) \/\/ \u5982\u679c\u540e\u53f0\u63a5\u6536\u7c7b\u578b\u4e3abase64\u7684\u8bdd\u8fd9\u4e00\u6b65\u53ef\u4ee5\u7701\u7565\n            resolve(files)\n          }\n        }\n      })\n    }\n  }\n}\n<\/script><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
antdv\u7684Upload\u7ec4\u4ef6\u5b9e\u73b0\u524d\u7aef\u538b\u7f29\u56fe\u7247\u5e76\u81ea\u5b9a …<\/p>\n","protected":false},"author":1,"featured_media":131,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,6],"tags":[],"class_list":["post-129","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vue","category-codeing"],"_links":{"self":[{"href":"https:\/\/www.icfyless.com\/index.php\/wp-json\/wp\/v2\/posts\/129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.icfyless.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.icfyless.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.icfyless.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.icfyless.com\/index.php\/wp-json\/wp\/v2\/comments?post=129"}],"version-history":[{"count":1,"href":"https:\/\/www.icfyless.com\/index.php\/wp-json\/wp\/v2\/posts\/129\/revisions"}],"predecessor-version":[{"id":132,"href":"https:\/\/www.icfyless.com\/index.php\/wp-json\/wp\/v2\/posts\/129\/revisions\/132"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.icfyless.com\/index.php\/wp-json\/wp\/v2\/media\/131"}],"wp:attachment":[{"href":"https:\/\/www.icfyless.com\/index.php\/wp-json\/wp\/v2\/media?parent=129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.icfyless.com\/index.php\/wp-json\/wp\/v2\/categories?post=129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.icfyless.com\/index.php\/wp-json\/wp\/v2\/tags?post=129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}