Geertjan's Blog

  • August 22, 2005

About that proxy server ... (Part 2)

Geertjan Wielenga
Product Manager
In yesterday's blog entry I felt all pleased because I'd worked out how to set the proxy host and port number for NetBeans J2SE projects. This is what I did:
  1. Create my.properties file in my application's root directory.
  2. Add proxy host and port number to the my.properties file:

  3. Right-click the project, choose Properties, click Run, and type my.properties in the Arguments field.
  4. Add this to the project's main class:

     if (args.length != 1) {
    System.err.println("Where's your properties file?");
    // Retrieve settings from the properties file,
    // add to system properties
    Properties myprops = new Properties();
    myprops.load(new FileInputStream(args[0]));
    Properties props = System.getProperties();
    Enumeration propNames = myprops.propertyNames();
    while (propNames.hasMoreElements()) {
    String s = (String) propNames.nextElement();
    props.setProperty(s, myprops.getProperty(s));

However, then I re-read Brian Leonard's Running the Amazon Web Services Sample Application In NetBeans and realized that all I really needed to do (instead of creating the my.properties file, putting it in the project's Arguments field, and adding a whole bunch of code to the main method) was add the proxy host and port number to the project's VM Options field (click to enlarge):

-Dhttp.proxyHost=webcache.uk -Dhttp.proxyPort=8080

Sometimes life is a lot simpler than it seems!

And why is this blog entry called "About that proxy server ...(Part 2)"? Where's Part 1? Well, Gregg wrote that: About that proxy server ... That blog entry looks at the proxy server for web-based clients, while this looks at it from the perspective of a Java application.

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