从servlet下载文件
问题描述：
在我的servlet中，我有一个路径，其中存在如下所示的logs.txt文件，
In my servlet, I have a path where a file logs.txt exists like below,
String loc = "/u/xyz/workspace/FirstServlet/WebContent/WEB-INF/logs.txt";
并将以下行添加到我的servlet中，并将响应重定向到jsp页面，
and added the following line to my servlet and redirected response to jsp page,
String result = "<a href='"+loc+"' target='_blank'>Download result</a>";
一切正常，但是当我单击下载结果"时，它返回未找到资源的异常，我想将logs.txt文件下载到我的客户端下载文件夹中.
Everything works fine but when I click the Download Result it returns a resource not found exception, I want to download logs.txt file to my client downloads folder.
我怎么了?
答
尝试使用request.setAttribute(arg0, arg1)
<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>