1、为什么CXF设置拦截器

为了在webservice请求过程中,能动态操作请求和响应数据, CXF设计了拦截器。拦截器分类

1.按所处的位置分：服务器端拦截器，客户端拦截器

2.按消息的方向分：入拦截器，出拦截器

3.按定义者分：系统拦截器，自定义拦截器

系统拦截器：

LoggingInInterceptor(系统日志入拦截器类)

LoggingOutInterceptor(系统日志出拦截器类)

2、系统拦截器

https://www.cnblogs.com/Mrchengs/p/10562458.html依旧是这里的服务端代码进行使用

1、服务端的拦截

在发布的main方法中：

package com.cr.server;

import java.util.List;

import javax.wsdl.Message;

import javax.xml.ws.Endpoint;

import org.apache.cxf.interceptor.Interceptor;import org.apache.cxf.interceptor.LoggingInInterceptor;

import org.apache.cxf.interceptor.LoggingOutInterceptor;

import org.apache.cxf.jaxws.EndpointImpl;

import com.cr.service.impl.HelloServiceImpl;

import service1.DateTypeWsImpl;

//发布service

public class server {

      public static void main(String[] args){

        String address = "http://localhost:8081/webserviceserver/helloService";

        Endpoint endpoint =  Endpoint.publish(address , new HelloServiceImpl());

        System.out.println(endpoint);

        EndpointImpl e = (EndpointImpl) endpoint;

        System.out.println(e);

        //服务端的日志入拦截器

        List<Interceptor<? extends org.apache.cxf.message.Message>> in = e.getInInterceptors();

        in.add(new LoggingInInterceptor());

        List<Interceptor<? extends org.apache.cxf.message.Message>> out = e.getOutInterceptors();

        out.add(new LoggingOutInterceptor());

        System.out.println();

        System.out.println("发布成功....");

    }

}

测试结果：

----------------------------

ID:

Address: http://localhost:8081/webserviceserver/helloService?wsdl

Http-Method: GET

Content-Type:

Headers: {Accept=[text/html, image/gif, image/jpeg, *; q=., */*; q=.2], connection=[keep-alive], Content-Type=[null], Host=[localhost:8081], User-Agent=[Java/1.8.0_101]}

--------------------------------------

三月 21, 2019 9:33:01 下午 org.apache.cxf.services.HelloServiceImplService.HelloServiceImplPort.HelloService

信息: Inbound Message

----------------------------

ID: 2

Address: http://localhost:8081/webserviceserver/helloService?wsdl

Http-Method: GET

Content-Type:

Headers: {Accept=[text/html, image/gif, image/jpeg, *; q=.2, */*; q=.], connection=[keep-alive], Content-Type=[null], Host=[localhost:], User-Agent=[Java/1.8.0_101]}

--------------------------------------

三月 ,  :: 下午 org.apache.cxf.services.HelloServiceImplService.HelloServiceImplPort.HelloService

信息: Inbound Message

----------------------------

ID:

Address: http://localhost:8081/webserviceserver/helloService?wsdl=HelloService.wsdl

Http-Method: GET

Content-Type:

Headers: {Accept=[text/html, image/gif, image/jpeg, *; q=., */*; q=.2], connection=[keep-alive], Content-Type=[null], Host=[localhost:8081], User-Agent=[Java/1.8.0_101]}

--------------------------------------

三月 21, 2019 9:33:02 下午 org.apache.cxf.services.HelloServiceImplService.HelloServiceImplPort.HelloService

信息: Inbound Message

----------------------------

ID: 4

Address: http://localhost:8081/webserviceserver/helloService?wsdl=HelloService.wsdl

Http-Method: GET

Content-Type:

Headers: {Accept=[text/html, image/gif, image/jpeg, *; q=.2, */*; q=.], connection=[keep-alive], Content-Type=[null], Host=[localhost:], User-Agent=[Java/1.8.0_101]}

--------------------------------------

三月 ,  :: 下午 org.apache.cxf.services.HelloServiceImplService.HelloServiceImplPort.HelloService

信息: Inbound Message

----------------------------

ID:

Address: http://localhost:8081/webserviceserver/helloService?wsdl=HelloService.wsdl

Http-Method: GET

Content-Type:

Headers: {Accept=[text/html, image/gif, image/jpeg, *; q=., */*; q=.2], connection=[keep-alive], Content-Type=[null], Host=[localhost:8081], User-Agent=[Java/1.8.0_101]}

--------------------------------------

三月 21, 2019 9:33:11 下午 org.apache.cxf.services.HelloServiceImplService.HelloServiceImplPort.HelloService

信息: Inbound Message

----------------------------

ID: 6

Address: http://localhost:8081/webserviceserver/helloService

Encoding: UTF-8

Http-Method: POST

Content-Type: text/xml; charset=UTF-8

Headers: {Accept=[application/soap+xml, application/dime, multipart/related, text/*], Cache-Control=[no-cache], connection=[close], Content-Length=[330], content-type=[text/xml; charset=UTF-8], Host=[localhost:8081], Pragma=[no-cache], SOAPAction=[""], User-Agent=[IBM Web Services Explorer]}

Payload: <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:q0="http://service.cr.com/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

  <soapenv:Body>

    <q0:sayHello>

      <arg0>1</arg0>

    </q0:sayHello>

  </soapenv:Body>

</soapenv:Envelope>

--------------------------------------

webservice sercer...

name:1

三月 21, 2019 9:33:11 下午 org.apache.cxf.services.HelloServiceImplService.HelloServiceImplPort.HelloService

信息: Outbound Message

---------------------------

ID: 6

Response-Code: 200

Encoding: UTF-8

Content-Type: text/xml

Headers: {}

Payload: <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><ns2:sayHelloResponse xmlns:ns2="http://service.cr.com/"><return>hello:1</return></ns2:sayHelloResponse></soap:Body></soap:Envelope>

--------------------------------------

2、客户端的拦截

package cn.com.client;

import java.util.List;

import org.apache.cxf.endpoint.Client;

import org.apache.cxf.frontend.ClientProxy;

import org.apache.cxf.interceptor.Interceptor;

import org.apache.cxf.interceptor.LoggingInInterceptor;

import org.apache.cxf.interceptor.LoggingOutInterceptor;

import org.apache.cxf.message.Message;

import com.cr.service.HelloService;

import com.cr.service.impl.HelloServiceImplService;

public class client {

     public static void main(String[] args){

        HelloServiceImplService factory = new HelloServiceImplService();

        HelloService hello = factory.getHelloServiceImplPort();

        //发送请求的客户端对象

        Client client = ClientProxy.getClient(hello);

        //添加日志出拦截器的集合

        List<Interceptor<? extends Message>> out =  client.getOutInterceptors();

        out.add(new LoggingOutInterceptor());

        //添加日志出拦截器的集合

        List<Interceptor<? extends Message>> in =  client.getInInterceptors();

        in.add(new LoggingInInterceptor());

        String res = hello.sayHello("mr");

        System.out.println("end:"+res);

    }

}
---------------------------

ID:

Address: http://localhost:8081/webserviceserver/helloService

Encoding: UTF-

Http-Method: POST

Content-Type: text/xml

Headers: {Accept=[*/*], SOAPAction=[""]}

Payload: <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><ns2:sayHello xmlns:ns2="http://service.cr.com/"><arg0>mr</arg0></ns2:sayHello></soap:Body></soap:Envelope>

--------------------------------------

三月 21, 2019 9:59:28 下午 org.apache.cxf.services.HelloServiceImplService.HelloServiceImplPort.HelloService

信息: Inbound Message

----------------------------

ID: 1

Response-Code: 200

Encoding: UTF-8

Content-Type: text/xml;charset=utf-8

Headers: {content-type=[text/xml;charset=utf-8], Date=[Thu, 21 Mar 2019 13:59:28 GMT], Server=[Jetty(9.4.14.v20181114)], transfer-encoding=[chunked]}

Payload: <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><ns2:sayHelloResponse xmlns:ns2="http://service.cr.com/"><return>hello:mr</return></ns2:sayHelloResponse></soap:Body></soap:Envelope>

--------------------------------------

end:hello:mr
首先是从客户端发送请求给服务器，先是发出请求给服务器被拦截(客户端出拦截器)，服务器返回响应数据后又被客户端拦截器拦截(客户端入拦截器)
服务器接收到客户端请求后，该请求先是被拦截(服务器入拦截器)，接着服务器接收请求并执行后，将数据发回给客户端又被拦截(服务器出拦截器)

3、自定义拦截器

案例：使用自定义拦截器，实现用户名和密码的权限，即访问权限控制！

　　　　需要的拦截器：客户端的出拦截器和服务器的入拦截器

说明：自定义拦截器都从AbstractPhaseIntercepter继承

问题：为什么客户端需要设置拦截器？

因为客户端拦截器能得到客户端的用户名和密码，并且将用户名和密码设置到请求头中

这样服务器接收请求时才能获取到用户名和密码，并且根据得到的用户名和密码来做出验证！

关于客户端的拦截器设置：

新建拦截类：

AddUserInterceptor.java 
package com.interceptor;

import java.util.List;

import javax.xml.namespace.QName;

import org.apache.cxf.binding.soap.SoapMessage;

import org.apache.cxf.headers.Header;

import org.apache.cxf.interceptor.Fault;

import org.apache.cxf.phase.AbstractPhaseInterceptor;

import org.apache.cxf.phase.Phase;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

import com.sun.org.apache.xml.internal.utils.DOMHelper;

import com.sun.xml.internal.ws.message.DOMHeader;

public class AddUserInterceptor extends AbstractPhaseInterceptor<SoapMessage> {

    private String name;

    private String pwd;

    //Phase.class可以查看相关的值

    public AddUserInterceptor(String name,String pwd) {

        super(Phase.PRE_PROTOCOL);//准备初始化拦截

        this.name=name;

        this.pwd=pwd;

    }

    /*

    <Envelope>

        <head>

            <cr>

                 <name>name</name>

                 <pwd>pwd</pwd>

             </cr>

        </head>

        <body>

          //...

        </body>

    </Envelope>

     */

    @Override

    public void handleMessage(SoapMessage msg) throws Fault {

        List<Header> header = msg.getHeaders();

        /*

         <head>

             <cr>

                 <name>name</name>

                 <pwd>pwd</pwd>

             </cr>

         </hean>

         */

        Document document = DOMHelper.createDocument();

        Element cr =  document.createElement("cr");//创建标签<cr></cr>

        Element name =  document.createElement("name");//创建标签<name></name>

        name.setTextContent(this.name);

        cr.appendChild(name);//将name加入到cr标签中

        Element pwd =  document.createElement("pwd");

        pwd.setTextContent(this.pwd);

        cr.appendChild(pwd);
　　　　　//设置《cr》标签的cr

        header.add(new Header(new QName("cr"), cr));

        System.out.println("clinet.....");

    }

}

在客户端的使用

package cn.com.client;

import java.util.List;

import org.apache.cxf.endpoint.Client;

import org.apache.cxf.frontend.ClientProxy;

import org.apache.cxf.interceptor.Interceptor;

import org.apache.cxf.interceptor.LoggingInInterceptor;

import org.apache.cxf.interceptor.LoggingOutInterceptor;

import org.apache.cxf.message.Message;

import com.cr.service.HelloService;

import com.cr.service.impl.HelloServiceImplService;

import com.interceptor.AddUserInterceptor;

public class client3 {

     public static void main(String[] args){

        HelloServiceImplService factory = new HelloServiceImplService();

        HelloService hello = factory.getHelloServiceImplPort();

        //发送请求的客户端对象

        Client client = ClientProxy.getClient(hello);

        //添加日志出拦截器的集合

        List<Interceptor<? extends Message>> out =  client.getOutInterceptors();

        out.add(new AddUserInterceptor("cr", "123"));

        String res = hello.sayHello("mr");

        System.out.println("end:"+res);

    }

}

关于服务器端的拦截类：

package interceptor;

import javax.xml.namespace.QName;

import org.apache.cxf.binding.soap.SoapMessage;

import org.apache.cxf.headers.Header;

import org.apache.cxf.interceptor.Fault;

import org.apache.cxf.phase.AbstractPhaseInterceptor;

import org.apache.cxf.phase.Phase;

import org.w3c.dom.Element;

public class CheckUserInterceptor extends AbstractPhaseInterceptor<SoapMessage>{

    public CheckUserInterceptor() {

        super(Phase.PRE_PROTOCOL);//准备初始化拦截

    }

    @Override

    public void handleMessage(SoapMessage msg) throws Fault {

        Header header = msg.getHeader(new QName("cr"));

        if(header!=null){

            //取出数据

            Element e =(Element) header.getObject();
　　　　　　　//取出name标签的值

            String name = e.getElementsByTagName("name").item().getTextContent();
　　　　　　　//取出pwd标签的值

            String pwd = e.getElementsByTagName("pwd").item().getTextContent();

            if("cr".equals(name) && "".equals(pwd)){

                System.out.println("用户密码正确...");

                return;

            }

            //没有通过

            System.out.println("不正确...");

            throw new Fault(new RuntimeException("请求需要正确的账户...."));

        }

    }

}

发布类中：

package com.cr.server;

import java.util.List;

import javax.wsdl.Message;

import javax.xml.ws.Endpoint;

import org.apache.cxf.interceptor.Interceptor;import org.apache.cxf.interceptor.LoggingInInterceptor;

import org.apache.cxf.interceptor.LoggingOutInterceptor;

import org.apache.cxf.jaxws.EndpointImpl;

import com.cr.service.impl.HelloServiceImpl;

import interceptor.CheckUserInterceptor;

import service1.DateTypeWsImpl;

//发布service

public class server2 {

      public static void main(String[] args){

        String address = "http://localhost:8081/webserviceserver/helloService";

        Endpoint endpoint =  Endpoint.publish(address , new HelloServiceImpl());

        System.out.println(endpoint);

        EndpointImpl e = (EndpointImpl) endpoint;

        System.out.println(e);

        //服务端的日志入拦截器

        List<Interceptor<? extends org.apache.cxf.message.Message>> in = e.getInInterceptors();

        in.add(new CheckUserInterceptor());

        

        System.out.println("发布成功....");

    }

}

测试：正确的情况下：

客户端的打印：

三月 ,  :: 下午 org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean buildServiceFromWSDL

信息: Creating Service {http://impl.service.cr.com/}HelloServiceImplService from WSDL: file:/D:/myeclipse/MyEclipseProject/webservices_cxf_client/client.wsdl

clinet.....

end:hello:mr

服务端的打印;

用户密码正确...

webservice sercer...

name:mr

测试：错误的i情况下：

客户端的打印：

三月 ,  :: 下午 org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean buildServiceFromWSDL

信息: Creating Service {http://impl.service.cr.com/}HelloServiceImplService from WSDL: file:/D:/myeclipse/MyEclipseProject/webservices_cxf_client/client.wsdl

clinet.....

Exception in thread "main" javax.xml.ws.soap.SOAPFaultException: 请求需要正确的账户....

    at org.apache.cxf.jaxws.JaxWsClientProxy.mapException(JaxWsClientProxy.java:)

    at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:)

    at com.sun.proxy.$Proxy35.sayHello(Unknown Source)

    at cn.com.client.client3.main(client3.java:)

Caused by: org.apache.cxf.binding.soap.SoapFault: 请求需要正确的账户....

服务端的打印：

不正确...

三月 ,  :: 下午 org.apache.cxf.phase.PhaseInterceptorChain doDefaultLogging

警告: Interceptor for {http://impl.service.cr.com/}HelloServiceImplService has thrown exception, unwinding now

org.apache.cxf.interceptor.Fault: 请求需要正确的账户....

    at interceptor.CheckUserInterceptor.handleMessage(CheckUserInterceptor.java:)

    at interceptor.CheckUserInterceptor.handleMessage(CheckUserInterceptor.java:)

    at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:)

    at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:)

    at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:)

    at org.apache.cxf.transport.http_jetty.JettyHTTPDestination.doService(JettyHTTPDestination.java:)

    at org.apache.cxf.transport.http_jetty.JettyHTTPHandler.handle(JettyHTTPHandler.java:)
.....

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