Question

当我通过jsp页面上传文件时，servlet只显示文件名，当我们通过eclipse在ubuntu 14.04中运行时，它不会获得整个文件路径。我们如何获得文件的完整路径

这是我的部分代码。我想在servlet中获取fname中的完整路径

-----------------Servlet Code---------------------------
 /************************************************************/
 protected void doPost(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        // checks if the request actually contains upload file
         HttpSession session = request.getSession();
         String uname=session.getAttribute("username").toString();

        if(ServletFileUpload.isMultipartContent(request))
        {
            try 
            {
                String name=null,name1=null;
                String fname = null;
                List<FileItem> multiparts = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(request);
                for(FileItem item : multiparts) {
                    if(!item.isFormField()) {
                        name=item.getName();
                        fname = new File(item.getName()).getName();
                    }
                }
            }
        }       

    -----------------JSP code---------------------------
 /************************************************************/     
 <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
    "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>File Upload Demo</title>
</head>
<body>
    <center>
        <form method="post" action="uploadFile" enctype="multipart/form-data">
            Select file to upload:
            <input type="text" name="username" value="${uname}"/>
            <input type="file" name="uploadFile"/>
            <br/><br/>
            <input type="submit" value="Upload"/>
        </form>
    </center>
</body>

Answer 1

 -----------------Servlet Code---------------------------
  /************************************************************/

      protected void doPost(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
    // checks if the request actually contains upload file
     HttpSession session = request.getSession();
     String uname=session.getAttribute("username").toString();

    if(ServletFileUpload.isMultipartContent(request))
    {
        try 
        {
            String name=null,name1=null;
            String fname = null;
            List<FileItem> multiparts = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(request);
            for(FileItem item : multiparts) {
                if(!item.isFormField()) {
                    name=item.getName();
                    fname = new File(item.getName()).getAbsolutePath();

                }
            }
        }
    }

///现在你的fname将包含文件路径

如何在上传文件时获取正确的文件路径

1 个答案: