vue下载文件
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互联网集市收集整理的这篇技术教程文章主要介绍了vue下载文件，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含3418字，纯文字阅读大概需要5分钟。
内容图文
import fileDownload from ‘js-file-download‘
let params = { "token" : "123456", "id" : "12345678901234567", "filename":"123.rar", "pckid":"5", "dty":"tbox", "cml":"300", "version":"102", }; let that = this; API.test2(params).then(function (result) { if (result) { // console.log(result);/*console.log(result.headers[‘Content-Disposition‘]); let filename = result.headers[‘Content-Disposition‘].substring(result.headers[‘Content-Disposition‘].indexOf("=")+1 ); console.log("filename",filename);*/ fileDownload(result,"123.rar"); /*let blob = new Blob([result], {type: "application/octet-stream"}); let objectUrl = URL.createObjectURL(blob); window.location.href = objectUrl;*/ } }).catch(function (error) { that.$message.error({showClose: true, message: ‘请求出现异常‘, duration: 2000}); });
test2:params => { return API.POST2(`apitbox/download`,params,{responseType: ‘blob‘})//{responseType: ‘blob‘}一定要加，否则文件出错 },
export const POST2 = (url, params,config) => { return axios.post(`${base}${url}`, params,config).then(res => res.data).catch(function (error) { alert("请求出现异常"); console.log(error); // window.location.reload(); }); }
后台springboot：
//
文件下载相关代码
@RequestMapping(value = "/download", method = { RequestMethod.POST, RequestMethod.GET }) // postman,url,3.tbox请求下载文件,暂时只支持单文件下载。public String downloadFile(@RequestBody Map<String, String> reqMap, HttpServletRequest request, HttpServletResponse response) { // version是路径
String token1 = reqMap.get("token");// request.getParameter("token");
String uuid1 = reqMap.get("id");// request.getParameter("uuid");
String fileName = "upload\\" + reqMap.get("dty") + "\\" + reqMap.get("cml") + "\\" + reqMap.get("version") + "\\" + reqMap.get("filename");
String name = fileName.substring(fileName.lastIndexOf("\\") + 1);
try {
apiTboxService.saveDownloadfile(reqMap.get("pckid"), uuid1, name, CommomUtil.DateFormat(), "download packages start",CommomUtil.servernum);
} catch (Exception e1) {
e1.printStackTrace();
}
if (fileName != null) {
// 设置文件路径/* String realPath = request.getServletContext().getRealPath("//WEB-INF//"); */
String realPath = request.getSession().getServletContext().getRealPath("/");
File file = new File(realPath, fileName);
if (file.exists()) {
response.setContentType("application/force-download");//
response.setHeader("content-type", "application/octet-stream");
response.addHeader("Content-Disposition", "attachment;fileName=" + name);// 设置文件名byte[] buffer = newbyte[5*1024 * 1024];
FileInputStream fis = null;
BufferedInputStream bis = null;
try {
fis = new FileInputStream(file);
bis = new BufferedInputStream(fis);
OutputStream os = response.getOutputStream();
int i = bis.read(buffer);
while (i != -1) {
os.write(buffer, 0, i);
i = bis.read(buffer);
}
System.out.println("--------------download----------------success");
try {
apiTboxService.updateDownloadfile(reqMap.get("pckid"), uuid1, "success");
} catch (Exception e1) {
e1.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
System.out.println("download---error");
try {
apiTboxService.updateDownloadfile(reqMap.get("pckid"), uuid1, e.toString());
} catch (Exception e1) {
e1.printStackTrace();
}
} finally {
if (bis != null) {
try {
bis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (fis != null) {
try {
fis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
returnnull;
}
原文：https://www.cnblogs.com/yaowen/p/9060268.html
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