现有文件上的java.io.FileNotFoundException [英] java.io.FileNotFoundException on an existing file

问题描述

尝试打开文件时出现此错误:

I am getting this error when I try to open a file:

java.io.FileNotFoundException: D:\Portable%20Programs\Android%20Development\workspace3\XXX-desktop\bin\World_X.fr (The system cannot find the path specified)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(Unknown Source)
    at java.util.Scanner.<init>(Unknown Source)

该文件已存在于目录中，但仍然出现此错误.但是，当我在Eclipse工作区Project src文件夹中复制相同文件时，不会返回此类异常(尽管此方法还在bin文件夹中创建World_X.fr文件).

The file is existing in the directory but I am still getting this error. However when I copy the same file in the Eclipse workspace Project src folder, no such Exception is returned (though this method also creates the World_X.fr file in the bin folder).

我实际上想做的是通过以下方式获取.jar文件的绝对位置:

What I am actually trying to do is get the absolute location of the .jar file through this:

fileLocation = new String(Main.class.getProtectionDomain().getCodeSource().getLocation().getPath());

然后我将"World_X.fr"附加到fileLocation字符串，但这不起作用.请在这方面帮助我.

And then I am appending "World_X.fr" to the fileLocation string but this is not working. Please help me in this regard.

推荐答案

您需要将%20取消转义为空格.例如:

You need to unescape the %20 to spaces. e.g.:

fileLocation = new String(
    Main.class.getProtectionDomain().getCodeSource().getLocation().getPath())
    .replaceAll("%20", " ");

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