在WebService中如何创建自己的拦截器拦截SOAP消息

使用自己自己创建的拦截器完成权限的判定，即用户名和密码是否正确

服务器端主要是验证用户名和密码

以下的代码主要是Web  Service的服务端

package lee;

import java.io.IOException;

public class ServerMain {

public static void main(String[] args) throws IOException{

HelloWorld hello=new HelloWorldWS();

//发布WebService

EndpointImpl endpoint=(EndpointImpl) Endpoint.publish("http://IP/webservie" ,hello);

endpoint.getInInterceptors().add(new AuthInterceptor());

}

}

我们需要创建自己的拦截器AuthInterceptor这个拦截器会将SOAP消息到达服务器之前拦截该消息

public class AuthInterceptor extends AbstractPhaseInterceptor<SoapMessage> {

    public AuthInterceptor(){

        super(Phase.PRE_INVOKE);    

     }

@Override

   public void handleMessage(SoapMessage msg) throws Fault {

     //这个参数msg就是我们拦截到的SOAP消息，我们需要解析Header

    List<Header> headers=msg.getHeaders(); 得到所有的Header

   if(headers==null || headers.size()<0){

      throw new Fault(new IllegalArgumentException("根本没有Header，不能调用"));

      }

   Header firstHeader=headers.get(0); //得到headers的第一个元素

  Element ele=(Element) firstHeader.getObject();

  NodeList userIds=ele.getElementsByTagName("userId");

 NodeList userpass=ele.getElementsByTagName("userPass");

if(userIds.getLength()!=1){

throw new Fault(new IllegalArgumentException("用户名格式不对"));

}

if(userpass.getLength()!=1){

throw new Fault(new IllegalArgumentException("密码格式不对"));

}

String userId=userIds.item(0).getTextContent();

String userPass=userpass.item(0).getTextContent();

//实际项目中调用数据库

if(!userId.equals("yy")||!userPass.equals("yy")){

throw new Fault(new IllegalArgumentException("用户名或者密码不正确"));

}

}

   }

}

客户端的代码就是讲用户名和密码的信息加到Header中

package lee;

import yy.Cat;

public class ClientMain {

public static void main(String[] args) {

HelloWorldWS factory =new HelloWorldWS();

//返回的是客户端的代理

HelloWorld hw=factory.getHelloWorldWSPort();

Client client=ClientProxy.getClient(hw);

client.getOutInterceptors().add(new AddHeaderInterceptor("yy","yy"));

client.getOutInterceptors().add(new LoggingOutInterceptor());

System.out.println(hw.sayHi("孙悟空"));

User user=new User();

user.setName("sun");

user.setPass("2233");

List<Cat> list=hw.getCatsByUser(user);

for(Cat cat:list){

System.out.println(cat.getName()+"  "+cat.getColor());

}

StringCat sc=hw.getAllCats();

for (Entry entry:sc.getEntries()){

System.out.println(entry.getKey()+"   "+entry.getValue().getName());

}

}

}

package yy.auth;

import java.util.List;

public class AddHeaderInterceptor extends AbstractPhaseInterceptor<SoapMessage> {

private String userId;

private String userPass;

public String getUserId() {

return userId;

}

public void setUserId(String userId) {

this.userId = userId;

}

public String getUserPass() {

return userPass;

}

public void setUserPass(String userPass) {

this.userPass = userPass;

}

public AddHeaderInterceptor(String userId,String userPass){

super(Phase.PREPARE_SEND);//在序列化之前的拦截 SOAP

this.userId=userId;

this.userPass=userPass;

}

@Override

public void handleMessage(SoapMessage msg) throws Fault {

Document document=DOMUtils.createDocument();

Element ele=document.createElement("authHeader");

Element id=document.createElement("userId");

Element pass=document.createElement("userPass");

id.setTextContent(userId);

pass.setTextContent(userPass);

ele.appendChild(id);

ele.appendChild(pass);

Header header=new Header(new QName("yy"),ele);

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

headers.add(header);

}

}