9

我正在尝试将自定义 HTTP 标头添加到 Apache CXF 中的响应。我需要从内容中计算 MD5 并将其添加为 HTTP 标头。我尝试使用 ResponseHandler 或 Interceptor。我最后一次尝试是

@Component
public class ResponseBPAuthFilter extends AbstractOutDatabindingInterceptor {


   public ResponseBPAuthFilter() {
       super(Phase.MARSHAL_ENDING);
   }


   @Override
   public void handleMessage(Message t) throws Fault {

       Map headers = CastUtils.cast((Map)t.get(Message.PROTOCOL_HEADERS));
       headers.put("Some-Header", Arrays.asList("test"));

   }

}

但它什么也没做。

4

3 回答 3

11

尝试添加Response Object作为您可以设置标题的返回值..

Response.ok(/* some entity */).header("CustomHeader", "CustomValue").build();

你不需要使用拦截器

于 2010-12-20T06:22:57.813 回答
6

听起来您可以使用 CXF CachedOutputStream 完成此操作。

public class MD5OutInterceptor extends AbstractPhaseInterceptor<Message> {

    public MD5OutInterceptor () {
        super(Phase.MARSHAL);
    }

    public final void handleMessage(Message message) {


        OutputStream os = message.getContent(OutputStream.class);
        if (os == null) {
            return;
        }

        final CachedOutputStream cos = new CachedOutputStream(os);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        cos.writeCacheTo(baos);

        // calculate MD5
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] mdBytes = md.digest(baos);

        MultivaluedMap<String, Object> headers = (MetadataMap<String, Object>) message.get(Message.PROTOCOL_HEADERS);

        if (headers == null) {
            headers = new MetadataMap<String, Object>();
        }             

        headers.add("MD5-Header", new String(mdBytes));
        message.put(Message.PROTOCOL_HEADERS, headers);
    }
}

不要忘记在 cxf 配置文件中配置你的拦截器：

<jaxrs:server>
    <jaxrs:outInterceptors>
        <ref bean="md5OutInterceptor">
    </jaxrs:outInterceptors>
</jaxrs:server>

<bean id="md5OutInterceptor" class="com.whatever.MD5OutInterceptor" />
于 2012-08-07T19:53:18.803 回答
-1

检查 来自cxf-2.3.3 源代码分发的文件夹 src/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/中的CustomOutInterceptor.java以获取工作演示：

import javax.ws.rs.core.MultivaluedMap;

import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.jaxrs.impl.MetadataMap;
import org.apache.cxf.message.Message;
import org.apache.cxf.phase.AbstractPhaseInterceptor;
import org.apache.cxf.phase.Phase;

public class MyOutInterceptor extends AbstractPhaseInterceptor<Message> {

    public MyOutInterceptor() {
        super(Phase.MARSHAL);
    }

    public void handleMessage(Message message) throws Fault {
        MultivaluedMap<String, Object> headers = new MetadataMap<String, Object>();
        headers.putSingle("BookId", "123");
        message.put(Message.PROTOCOL_HEADERS, headers);
    }
}

我猜您上次尝试发布的代码取自1。也在尝试这个，也无法让它工作......

于 2011-03-07T12:36:16.013 回答