Java Proxy Setup Guide

1 year ago
Jackson Davis
2 minutes

To set up proxy access in Java, you can achieve this by setting system properties. The specific steps are as follows:

  1. Set the property in the system.
  1. “http.proxyHost” is used to specify the hostname or IP address of the HTTP proxy server.
  2. “http.proxyPort”: specifies the port number of the HTTP proxy server.
  3. “https.proxyHost” sets the hostname or IP address of the HTTPS proxy server.
  4. “Set the port number for the HTTPS proxy server.”

For example, set the hostname of the HTTP proxy server to proxy.example.com and the port number to 8080.

System.setProperty("http.proxyHost", "proxy.example.com");
System.setProperty("http.proxyPort", "8080");
  1. Setting up the following system properties is necessary if the proxy server requires authentication.
  1. “http.proxyUser”: Specifies the username for the proxy server.
  2. “http.proxyPassword”: Specify the password for the proxy server.

For example, set the username for the proxy server to “username” and the password to “password”:

System.setProperty("http.proxyUser", "username");
System.setProperty("http.proxyPassword", "password");
  1. It should be noted that the above settings only apply to operations using the java.net package for network access. Additional settings may be required for network access using third-party libraries or frameworks.
  2. If you need to cancel the proxy access, you can use the System.clearProperty() method to clear the system properties set above.
System.clearProperty("http.proxyHost");
System.clearProperty("http.proxyPort");
System.clearProperty("https.proxyHost");
System.clearProperty("https.proxyPort");
System.clearProperty("http.proxyUser");
System.clearProperty("http.proxyPassword");
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