使用JAX-WS跟踪XML请求/响应 [英] Tracing XML request/responses with JAX-WS

问题描述

是否有一种简单的方法（也就是说：不使用代理）来访问使用JAX-WS参考实现（JDK 1.5及更高版本中包含的那个）发布的Web服务的原始请求/响应XML？
能够通过代码实现这一点是我需要做的。
只需通过巧妙的日志记录配置将其记录到文件中就可以了，但是足够了。

Is there an easy way (aka: not using a proxy) to get access to the raw request/response XML for a webservice published with JAX-WS reference implementation (the one included in JDK 1.5 and better) ? Being able to do that via code is what I need to do. Just having it logged to a file by clever logging configurations would be nice but enough.

我知道其他更复杂，更完整的框架可能存在，但我想保持尽可能简单，轴，cxf等都会增加我想避免的相当大的开销。

I know that other more complex and complete frameworks exist that might do that, but I would like to keep it as simple as possible and axis, cxf, etc all add considerable overhead that I want to avoid.

谢谢！

推荐答案

以下是原始代码的解决方案（感谢stjohnroe和Shamik）：

Here is the solution in raw code (put together thanks to stjohnroe and Shamik):

Endpoint ep = Endpoint.create(new WebserviceImpl());
List<Handler> handlerChain = ep.getBinding().getHandlerChain();
handlerChain.add(new SOAPLoggingHandler());
ep.getBinding().setHandlerChain(handlerChain);
ep.publish(publishURL);

其中SOAPLoggingHandler（从链接示例中删除）：

Where SOAPLoggingHandler is (ripped from linked examples):

package com.myfirm.util.logging.ws;

import java.io.PrintStream;
import java.util.Map;
import java.util.Set;

import javax.xml.namespace.QName;
import javax.xml.soap.SOAPMessage;
import javax.xml.ws.handler.MessageContext;
import javax.xml.ws.handler.soap.SOAPHandler;
import javax.xml.ws.handler.soap.SOAPMessageContext;

/*
 * This simple SOAPHandler will output the contents of incoming
 * and outgoing messages.
 */
public class SOAPLoggingHandler implements SOAPHandler<SOAPMessageContext> {

    // change this to redirect output if desired
    private static PrintStream out = System.out;

    public Set<QName> getHeaders() {
        return null;
    }

    public boolean handleMessage(SOAPMessageContext smc) {
        logToSystemOut(smc);
        return true;
    }

    public boolean handleFault(SOAPMessageContext smc) {
        logToSystemOut(smc);
        return true;
    }

    // nothing to clean up
    public void close(MessageContext messageContext) {
    }

    /*
     * Check the MESSAGE_OUTBOUND_PROPERTY in the context
     * to see if this is an outgoing or incoming message.
     * Write a brief message to the print stream and
     * output the message. The writeTo() method can throw
     * SOAPException or IOException
     */
    private void logToSystemOut(SOAPMessageContext smc) {
        Boolean outboundProperty = (Boolean)
            smc.get (MessageContext.MESSAGE_OUTBOUND_PROPERTY);

        if (outboundProperty.booleanValue()) {
            out.println("\nOutbound message:");
        } else {
            out.println("\nInbound message:");
        }

        SOAPMessage message = smc.getMessage();
        try {
            message.writeTo(out);
            out.println("");   // just to add a newline
        } catch (Exception e) {
            out.println("Exception in handler: " + e);
        }
    }
}

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