Eclipse中的java文件相对路径 [英] java file relative path in eclipse

问题描述

三天我试图弄清楚如何使用相对文件路径读取文件。在日食这编译和工作很好，但是当我出口的应用程序。它说，它无法找到该文件。这里是截图和我工作的代码。

这个代码可以工作，但只有在eclipse中，它编译和完成工作。但是，当我出口作为可运行jar文件，我得到一个错误，它无法找到licenca.txt

  BufferedReader in = new BufferedReader（new FileReader（new File（licenca.txt）。getPath（）））; 
 String str; （（str = in.readLine（））！= null）{
 taLicenca.append（str +\\\
）; 
 
 
 
 
 $ p 
 $ b $ p这里是我的项目文件的截图
 
 
 
 文件http：//img207.imageshack。 us / img207 / 5317 / 63432445.png   
 
 
我曾尝试使用扫描仪功能，仍然是相同的结果，它在日食，但不在出口工作。这里是错误信息：
 
 
 
 错误http://img98.imageshack.us/img98/1771/greskaa.png  
解决方案
如果你把这个文件放到类路径中，它会起作用的。 
 
 
 
更改您的代码： 
 
 
  InputStream is = this。 。的getClass（）getClassLoader（）的getResourceAsStream（ licenca.txt）; 
 BufferedReader in = new BufferedReader（new InputStreamReader（is））; 
 String str; （（str = in.readLine（））！= null）{
 taLicenca.append（str +\\\
）; 
 
  
试试看。
 
Three days i was trying to figure out how to read file using relative file path. In eclipse this compiles and works great, but when i export app. It says that it can't find the file. here is the screenshot and code i work on.

This code works, but only in eclipse, it compiles and does job perfectly. But when i export it as as runnable jar file i get an error, that it cannot locate licenca.txt
 BufferedReader in = new BufferedReader(new FileReader(new File("licenca.txt").getPath()));
        String str;
        while ((str = in.readLine()) != null) {
      taLicenca.append(str + "\n");

    }
here is the screenshot of my project files

files http://img207.imageshack.us/img207/5317/63432445.png

i have tried use of scanner function, still the same result, it works in eclipse, but doesn't work on export. Here is the error message:

error http://img98.imageshack.us/img98/1771/greskaa.png
解决方案
I'll bet it'll work if you put that file into the classpath.  

Change your code like this: 
InputStream is = this.getClass().getClassLoader().getResourceAsStream("licenca.txt");
BufferedReader in = new BufferedReader(new InputStreamReader(is));
String str;
while ((str = in.readLine()) != null) {
    taLicenca.append(str + "\n");
}
Try it and see.

                        
这篇关于Eclipse中的java文件相对路径的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！