如何获取文件的完整路径? [英] How do I get the complete path of the file?

问题描述

可能重复:
如何获取文件路径从Firefox 3的HTML输入表单中获得

Possible Duplicate:
How to get the file path from HTML input form in Firefox 3

有什么方法可以从input file tag获取文件的完整路径而无需使用第三方API?

Is there any way I can get the complete path of the file from the input file tag without using the 3rd party API ?

<form method="post" action="SendTheFileName">
                <div id="Files_to_be_shared"> 
                      <input type="file" id="File" name="FileTag" />
                      <input type="submit" value="Share" /> 
               </div>
 </form>

servlet的

片段:

Snippet from the servlet :

String fileName = request.getParameter("FileTag");

我现在从上面的Java代码中得到的只是所选文件的名称.如何获取文件的完整路径?

What I get now from the above java code is just the name of the file selected. How do I get the complete path of the file ?

推荐答案

这个问题已经在其他线程中得到解答，我认为这2个中的任何一个都可以帮助您:

This question was already answered in other threads, I think that any of this 2 can help you:

如何使用< input id ='file'名称=文件" type ="file"尺寸="60" >在jsp中

如何获取使用javascript中的输入类型文件的文件的完整路径?

只是为了进一步完善我的答案，而且由于您已向其中添加了Java标记，所以在这里我将向您提供一些代码片段，这些代码片段展示了一些您可以从文件中获取的最常见信息，但是从Java视角:

Just to complete my answer a bit more and since you added the java tag to it, here I will include you a little snippet of code that shows some of the most common information you can get out of a file, but from the java perspective:

package test;

import java.io.File;
import java.io.IOException;

public class FilePaths {

    public static void main(String[] args) throws IOException {

        String[] fileArray = { 
                "C:\\projects\\workspace\\testing\\f1\\f2\\f3\\file5.txt", 
                "folder/file3.txt",
                "../testing/file1.txt", 
                "../testing", 
                "f1/f2"
        };

        for (String f : fileArray) {
            displayInfo(f);
        }

    }

    public static void displayInfo(String f) throws IOException {
        File file = new File(f);
        System.out.println("========================================");
        System.out.println("          name:" + file.getName());
        System.out.println("  is directory:" + file.isDirectory());
        System.out.println("        exists:" + file.exists());
        System.out.println("          path:" + file.getPath());
        System.out.println(" absolute file:" + file.getAbsoluteFile());
        System.out.println(" absolute path:" + file.getAbsolutePath());
        System.out.println("canonical file:" + file.getCanonicalFile());
        System.out.println("canonical path:" + file.getCanonicalPath());
    }

}

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