Spring Resttemplate - How to Enable Full Debugging/Logging of Requests/Responses

Spring RestTemplate - how to enable full debugging/logging of requests/responses?

I finally found a way to do this in the right way.
Most of the solution comes from
How do I configure Spring and SLF4J so that I can get logging?

It seems there are two things that need to be done :

1. Add the following line in log4j.properties : log4j.logger.httpclient.wire=DEBUG
2. Make sure spring doesn't ignore your logging config

The second issue happens mostly to spring environments where slf4j is used (as it was my case).
As such, when slf4j is used make sure that the following two things happen :

1. There is no commons-logging library in your classpath : this can be done by adding the exclusion descriptors in your pom :

           <exclusions><exclusion>
               <groupId>commons-logging</groupId>
               <artifactId>commons-logging</artifactId>
           </exclusion>
       </exclusions>
   

2. The log4j.properties file is stored somewhere in the classpath where spring can find/see it. If you have problems with this, a last resort solution would be to put the log4j.properties file in the default package (not a good practice but just to see that things work as you expect)

How do I log response in Spring RestTemplate?

Depending on which method of making the HTTP connection you are using, you could look at turning up the logging within the actual HTTP connection classes.

For example, if you are using commons HttpClient, you can set

log4j.logger.httpclient.wire=DEBUG

The commons-httpclient project has an entire page in the documentation on their logging practices.

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