Question

在我的servlet中，我有一个文件logs.txt存在的路径，如下所示，

String loc = "/u/xyz/workspace/FirstServlet/WebContent/WEB-INF/logs.txt";

并将以下行添加到我的servlet并将响应重定向到jsp页面

String result = "<a href='"+loc+"' target='_blank'>Download result</a>";

一切正常但当我点击下载结果时会返回资源未找到异常，我想将logs.txt文件下载到我的客户端下载文件夹。

我的错误是什么？

Answer 1

通过使用path

将request.setAttribute(arg0, arg1)从servlet传递到Java脚本来尝试此操作

<script type='text/javascript'> 
function saveTextAsFile()
{

   var textToWrite = "SOME TEXT YOU WANT TO WRITE"
   var textFileAsBlob = new Blob([textToWrite], {type:'.txt'});
   var fileNameToSaveAs = "my.txt";

  var downloadLink = document.createElement("a");
  downloadLink.download = fileNameToSaveAs;
   if (window.webkitURL != null)
   {
     downloadLink.href = window.webkitURL.createObjectURL(textFileAsBlob);
   }
   else
   {
     downloadLink.href = window.URL.createObjectURL(textFileAsBlob);
     downloadLink.style.display = "none";
     document.body.appendChild(downloadLink);
  }

 }
</script>

Check this for downloading file from servlet

从servlet下载文件

1 个答案: