使用docx-preview插件预览docx后缀文件、预览HTML文件

使用 docx–preview插件预览 docx 后缀 文件

1.安装插件

 npm install docx-preview

2.使用

import { renderAsync } from 'docx-preview';

&lt;el-button type="text" @click="previewClick"&gt;预览</el-button&gt;

 <div v-if="previewDialogVisible"&gt;
      <el-dialog title="预览" :visible.sync="previewDialogVisible" append-to-body width="50%"&gt;
        <div ref="file" v-loading="previewLoading" element-loading-text="拼命加载中" element-loading-spinner="el-icon-loading" element-loading-background="rgba(0, 0, 0, 0.8)" style="height:550px;overflow-y:auto;"></div>
      </el-dialog>
    </div>

previewDialogVisible: false,//预览
previewLoading:false,

    // 预览
    previewClick() {
      this.previewDialogVisible = true
      this.previewLoading=true
      preview(this.id)
        .then((res) => {
          console.log("res333333333", res);
          this.previewLoading=false
          renderAsync(res, this.$refs.file, null, {
            className: 'text-docx', //class name/prefix for default and document style classes
            inWrapper: true, //enables rendering of wrapper around document content
            ignoreWidth: false, //disables rendering width of page
            ignoreHeight: false, //disables rendering height of page
            ignoreFonts: false, //disables fonts rendering
            breakPages: true, //enables page breaking on page breaks
            ignoreLastRenderedPageBreak: true, //disables page breaking on lastRenderedPageBreak elements
            experimental: true, //enables experimental features (tab stops calculation)
            trimXmlDeclaration: true, //if true, xml declaration will be removed from xml documents before parsing
            useBase64URL: false, //if true, images, fonts, etc. will be converted to base 64 URL, otherwise URL.createObjectURL is used
            useMathMLPolyfill: true, //includes MathML polyfills for chrome, edge, etc.
            debug: false //enables additional logging
          }) // 渲染到页面
        })
        .catch((err) => { });
    },

预览HTML文件

1. 重新打开 一个 新页面进行预览

export function preview(params) {
  return request({
    url: `/preview`,
    method: 'GET',
    params,
  })
}

    previewClick(row) {
      // preview
      const params = {
        reportId: row.reportId,
      }
      preview(params)
        .then(res => {
          console.log('res111', res)
          // res.data 为接口返回的html完整文件代码
          // 必须要存进localstorage，否则会报错，显示不完全
           window.localStorage.removeItem('callbackHTML')
           window.localStorage.setItem('callbackHTML', res.data)
          // // 读取本地保存的html数据，使用新窗口打开
           const newWin = window.open('', '_blank')
           newWin.document.write(localStorage.getItem('callbackHTML'))
          // // 关闭输出流
           newWin.document.close()
        })
        .catch(err => {
          console.log('err23232323', err)
        })
    },

2.通过 弹窗进行预览（存在 水印 溢出 问题）

    <div v-if="dialogPreview">
      <el-dialog
        title="预览"
        :visible.sync="dialogPreview"
        width="60%"
        append-to-body
        top="10%"
      >
        <div id="myDiv" style="height: 300px; overflow-y: auto"></div>
      </el-dialog>
    </div>

dialogPreview: false,

    // 报告预览
    previewClick(row) {
      // preview
      const params = {
        reportId: row.reportId,
      }
      this.dialogPreview = true
      preview(params)
        .then(res => {
          console.log('res111', res)
          // res.data 为接口返回的html完整文件代码
          document.getElementById('myDiv').innerHTML = res.data
        })
        .catch(err => {
          console.log('err23232323', err)
        })
    },

3.通过 弹窗 访问 iframe

    <div v-if="dialogPreview">
      <el-dialog
        title="预览"
        :visible.sync="dialogPreview"
        width="60%"
        append-to-body
        top="10%"
      >
        <iframe id="myFrame" style="width: 100%; height: 500px"></iframe>
      </el-dialog>
    </div>

dialogPreview: false,

    // 报告预览
    previewClick(row) {
      // preview
      const params = {
        reportId: row.reportId,
      }
      this.dialogPreview = true
      preview(params)
        .then(res => {
          console.log('res111', res)
          // res.data 为接口返回的html完整文件代码
          const iframe = document.getElementById('myFrame')
          const iframeDocument = iframe.contentDocument
          const htmlCode = res.data
          // 在iframe的文档中写入HTML代码
          iframeDocument.open()
          iframeDocument.write(htmlCode)
          iframeDocument.close()
        })
        .catch(err => {
          console.log('err23232323', err)
        })
    },