How do I set the proxy to be used by the JVM

Question

Many times, a Java app needs to connect to the Internet. The most common example happens when it is reading an XML file and needs to download its schema.

I am behind

Answer 1

You can set those flags programmatically this way:

if (needsProxy()) {
    System.setProperty("http.proxyHost",getProxyHost());
    System.setProperty("http.proxyPort",getProxyPort());
} else {
    System.setProperty("http.proxyHost","");
    System.setProperty("http.proxyPort","");
}

Just return the right values from the methods needsProxy(), getProxyHost() and getProxyPort() and you can call this code snippet whenever you want.