Vue+ElementUI使用vue-pdf实现预览功能

Vue+ElementUI项目中使用vue-pdf实现简单预览，供大家参考，具体内容如下1、安装vue-pdfnpminstall-

Vue + ElementUI项目中使用vue-pdf实现简单预览，供大家参考，具体内容如下

1、安装 vue-pdf

npm install --save vue-pdf

2、在vue页面中导入对应的组件

我这是通过点击 预览 按钮 获取id打开一个dialog来实现

<!--PDF 预览-->
 <el-dialog :title="PDF 预览"
 :visible.sync="viewVisible" width="80%" center
 @close='closeDialog'>
 <div style="margin-bottom: 15px; text-align: right">
 <el-button type="primary" size="small" @click.stop="previousPage">
 上一页
 </el-button>
 <el-button type="primary" size="small" @click.stop="nextPage">
 下一页
 </el-button>
 <span>当前第{{pdfPage}}页 / 共{{pageCount}}页</span>
 </div>

 <div >
 <pdf
 :src="src"
 :page="pdfPage"
 @num-pages="pageCount = $event"
 @page-loaded="pdfPage = $event"
 style="display: inline-block; width: 100%"
 ></pdf>
 </div>
</el-dialog>

<script>
 import pdf from 'vue-pdf';
 export default {
 components: {
 pdf
 },
 data() {
 return {
 //PDF预览
 viewVisible: false,
 src: null,
 pdfPage : 1,
 pageCount: 0,
 }
 },
 methods:{
 //PDF预览
 previewPDF(row){
 this.src = pdf.createLoadingTask(documentConstants.previewPDFUrl+row.contractId);
 this.src.then(pdf => {
 this.viewVisible = true;
 });
 },

 //关闭窗口初始化PDF页码
 closeDialog(){
 this.pdfPage = 1;
 },

 //PDF改变页数
 previousPage(){
 var p = this.pdfPage
 p = p>1?p-1:this.pageCount
 this.pdfPage = p
 },
 nextPage(){
 var p = this.pdfPage
 p = p<this.pageCount?p+1:1
 this.pdfPage = p
 }
 }
 }
</script>

3、Controller的返回

@RequestMapping(value = "/previewPDF/{contractId}")
 public ResponseEntity<byte[]> previewPDF(@PathVariable Long contractId) throws TException, IOException {
 ContractAttachmentTmpModelDTO model = contractScanManagementRpcService.queryContractAttachmentTmp(contractId);
 HttpHeaders headers = new HttpHeaders();
 headers.setContentDispositionFormData("attachment", model.getAttachmentName());
 headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
 return new ResponseEntity<byte[]>(model.getAttachmentData(),
 headers, HttpStatus.OK);
 }

总结：这个是实现一个简单的预览功能。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。