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。
