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如何將攔截器添加到 wsdl2java (CXF) 生成的客戶端?

[英]How to add interceptors to a wsdl2java (CXF) generated client?

我正在嘗試向wsdl2java生成的客戶端的入站/出站流量添加一些日志記錄。 我有客戶端生成並使用它如下:

偽代碼:

MyService ws = new MyService().getMyServiceSoap12();
((BindingProvider)ws).getRequestContext().put(BindingProvider.ENDPOINT_ADDRESS_PROPERTY, webServiceAddress); // for dynamic endpoints...

有什么辦法可以添加一些攔截器嗎? 順便說一下,我在Spring應用程序中使用它!

如果您需要自定義日志記錄或以不同方式處理 SOAP 消息,您可以實現自己的javax.xml.ws.handler.soap.SOAPHandler ,方法如下:

MyService ws = new MyService().getMyServiceSoap12();

BindingProvider wsBindingProvider = (BindingProvider) ws;

// Get a copy of the handler chain for a protocol binding instance
List<Handler> handlers =
    wsBindingProvider.getBinding().getHandlerChain();

// Add your handler(s)
handlers.add(new MySoapMessageLogger());

// We need to setHandlerChain because setHandlerChain
// returns a copy of List<Handler>
wsBindingProvider.getBinding().setHandlerChain(handlers);

MySoapMessageLogger 可能如下所示:

public class MySoapMessageLogger implements SOAPHandler<SOAPMessageContext> {

    private static final Logger logger = 
        LoggerFactory.getLogger(MySoapMessageLogger.class);

    @Override
    public boolean handleMessage(SOAPMessageContext context) {
        Boolean isRequest = (Boolean) context.get(MessageContext.MESSAGE_OUTBOUND_PROPERTY);
        // Retrieve the message contents
        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        context.getMessage().writeTo(stream);
        
        // You've got your XML message and can log it right away or
        // beautify it with some library before sending to log
        logger.trace((isRequest ? "Request:" : "Response:") + stream.toString());

        return true;
    }

    /* For the logging purposes the following methods can be leaved as stubs */

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

    @Override
    public boolean handleFault(SOAPMessageContext context) {
        return false;
    }

    @Override
    public void close(MessageContext context) {
    }
}

我不確定您的問題是問如何啟用內置的請求/響應日志記錄,還是替換和/或增強現有的日志記錄工具。

假設是前者,我建議查看CXF User Guide調試、日志記錄配置部分。 最重要的一點是 CXF 默認使用Java SE 日志記錄,這意味着如果你想使用其他東西,你需要在項目中扔一個 SLF4J 橋。

要在 Spring 配置中啟用日志合並這些位(注意cxf命名空間):

<beans xmlns="http://www.springframework.org/schema/beans"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xmlns:cxf="http://cxf.apache.org/core"
      xsi:schemaLocation="
http://cxf.apache.org/core http://cxf.apache.org/schemas/core.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">

    <cxf:bus>
        <cxf:features>
            <cxf:logging/>
        </cxf:features>
    </cxf:bus> 
</beans> 

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