Using Apache HTTPClient - how can one see the raw request string before it's being sent?

Question

For debugging purposes, I'd like to see the raw request that is going to be sent. Is there a way to get this without a HTTP monitor directly from the API of HttpPost or HttpClient?

I found some "almost" duplicate questions, but not for this particular one

Answer 1

You can set some environment variables for Apache HttpClient (example tested for 4.3.2).

System.setProperty("org.apache.commons.logging.Log","org.apache.commons.logging.impl.SimpleLog"); System.setProperty("org.apache.commons.logging.simplelog.showdatetime", "true"); System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http.wire", "DEBUG"); 

There are also some more variables for debugging:

System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http.impl.conn", "DEBUG"); System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http.impl.client", "DEBUG"); System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http.client", "DEBUG"); System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http", "DEBUG");