How to dump HTTP body and headers sent with HTTP component with Apache Camel

问题

How to dump HTTP body and headers sent with Apache Camel HTTP component using this route:

   from('direct:abc').
   setHeader(Exchange.HTTP_URI, constant("${config.gnutch.solr.coreUrl}/select")).
   setHeader(Exchange.HTTP_QUERY, constant("q=${q}&wt=xml")).
   setHeader(Exchange.CONTENT_TYPE, constant('application/xml')).
   setHeader(Exchange.HTTP_METHOD, constant('GET')).
   setBody(constant(null)).
   to("http://null")

This is Camel DSL code in groovy. Is that possible?

回答1:

Have you tried something like

from("direct:abc")
 .to("http://domain.com/")
 .to("log:DEBUG?showBody=true&showHeaders=true")

Also the HTTP Component Documentation suggests that you can extract the HttpServletRequest from the exchange like,

HttpServletRequest request = exchange.getIn().getBody(HttpServletRequest.class);

You can then alternatively do,

from("direct:abc").to("http://domain.com").process(new Processor() {
    public void process(Exchange exchange) throws Exception {
        HttpServletRequest request = exchange.getIn().getBody(HttpServletRequest.class);
        // Log request parameters
    }
});

回答2:

This will help , use this in log message :

${headers}

${in.headers}

This will print any incoming headers .

Checkout here : http://camel.apache.org/simple.html

Example :

回答3:

Try logging headers and content using one of HttpClient loggers.

Is is described in Logging Practices (version 3.x in this case).

I am using loggers with names:

httpclient.wire
org.apache.commons.httpclient.HttpConnection

which gives me output like:

o.a.c.httpclient.HttpConnection - Open connection to 0.0.0.0:12454
httpclient.wire.header - >> "POST /some/path HTTP/1.1[\r][\n]"
httpclient.wire.header - >> "breadcrumbId: ID-localhost-55077[\r][\n]"
httpclient.wire.header - >> "path: http://0.0.0.0:65432/some/other/path[\r][\n]"
httpclient.wire.header - >> "User-Agent: Jakarta Commons-HttpClient/3.1[\r][\n]"
httpclient.wire.header - >> "Host: 0.0.0.0:12454[\r][\n]"
httpclient.wire.header - >> "Content-Length: 117[\r][\n]"
httpclient.wire.header - >> "[\r][\n]"
httpclient.wire.content - >> "{"a":"afeaafe","b":{"c":"53413"},"d":{"e":"vsegefawawewr"}}"
httpclient.wire.header - << "HTTP/1.1 200 OK[\r][\n]"
httpclient.wire.header - << "HTTP/1.1 200 OK[\r][\n]"
httpclient.wire.header - << "Date: Fri, 08 Apr 2016 07:24:24 GMT[\r][\n]"
httpclient.wire.header - << "Content-Type: application/octet-stream[\r][\n]"
httpclient.wire.header - << "Date: Fri, 08 Apr 2016 07:24:24 GMT[\r][\n]"
httpclient.wire.header - << "Content-Length: 7[\r][\n]"
httpclient.wire.header - << "Server: Jetty(9.2.10.v20150310)[\r][\n]"
httpclient.wire.header - << "[\r][\n]"
httpclient.wire.content - << "Success"
o.a.c.httpclient.HttpConnection - Releasing connection back to connection manager.

来源：https://stackoverflow.com/questions/19976812/how-to-dump-http-body-and-headers-sent-with-http-component-with-apache-camel

标签

java

groovy

apache-camel