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POSetting properties file using java
 

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    <p>I have a Swing Frame with some text-fields which displays the current values in the Properties file. Once I modify these properties in the text-field it should be saved back to the properties file. The properties which I have are database connection parameters. My connection parameters are as follows</p> <pre><code>driver--org.postgresql.Driver url--jdbc:postgresql://localhost/bank user--postgres password--aaa </code></pre> <p>But when it updates, in the url field, where ever there is a ':', it adds a '\' like <code>URL2=jdbc\:postgresql\://localhost/bank</code>. How can I avoid this? I tried printing the contents before setting the Properties file and then it is ok. I printed the String before setting the properties, there it is coming right;</p> <pre><code>org.postgresql.Driver **jdbc:postgresql://localhost/bank**postgres**aaa </code></pre> <p>Can someone please help me. Thanks in Advance</p> <pre><code> public static void update(String driver,String url, String user,String password) throws SecurityException, IOException{ System.out.println(driver+" **"+url+"**"+user+"**"+password); FileInputStream in = new FileInputStream("evaluator.properties"); Properties props = new Properties(); props.load(in); in.close(); FileOutputStream out = new FileOutputStream("evaluator.properties"); props.setProperty("Driver2", driver); props.setProperty("URL2", url); props.setProperty("Login2", user); props.setProperty("Password2", password); props.store(out, null); out.close(); } </code></pre>
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    1. USThihara
    1. USjava_new
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    1. COIt doesn't matter, it will work all the same; but yeah, it is annoying
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      1. USfge
    2. COThis is how the properties API works, it needs escape certain characters. When you read the properties back in (via the `Properties` class) how do they look?
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      1. USMadProgrammer
    3. COAs @MadProgrammer mentioned, if you add a `props.list(System.err);` directly after your `props.load(in);` line, you can verify that after reloading the properties look fine
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      1. USAndreas Fester
 

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