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POHow to read a properties file in java from outside the Class folder?
 

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  1. POHow to read a properties file in java from outside the Class folder?
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    <p>I have the following path structure to the main class:</p> <pre><code>D:/java/myapp/src/manClass.java </code></pre> <p>and i want to put the properties file in</p> <pre><code>D:/java/myapp/config.properties </code></pre> <p>which will contain a file name and some other configurations. I'll set the file name in properties file like this: <code>file=file_to_read.txt</code></p> <p>this <code>file_to_read.txt</code> will be located in <code>D:/java/myapp/folder_of_file/</code></p> <p>The main class will read the file name from the properties file first and then get the contents form the file.</p> <p>I can do this if both <code>config.properties</code> and <code>file_to_read.txt</code> are in <code>src/</code> with the <code>mainClass.java</code>. But could not succeed with the way I want to do it.</p> <p>Can anybody help me with this? I need your suggestion about what can I do if I want to put the <code>myapp</code> folder anywhere in my drive with the same internal structure in it I described above and the program will do the job correctly.</p> <p>I also need your suggestion that if I want to do the job from the jar created after building the project then can I do that without any problem?</p> <p>I've tried as the following just to read the properties file:</p> <pre><code> URL location = myClass.class.getProtectionDomain().getCodeSource().getLocation(); String filePath = location.getPath().substring(1,location.getPath().length()); InputStream in = myClass.class.getResourceAsStream(filePath + "config.properties"); prop.load(in); in.close(); System.out.println(prop.getProperty("file")); </code></pre> <p>But this gives err when tried to getProperty from the properties file. Thanks!</p>
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