WebService小白学习之 CXF添加拦截器，自定义拦截器 (6)

本篇为CXF添加拦截器，自定义拦截器。

实现过程：

1、在服务端项目Server.java添加日记拦截器

package com.gx.server;

import org.apache.cxf.interceptor.LoggingInInterceptor;
import org.apache.cxf.interceptor.LoggingOutInterceptor;
import org.apache.cxf.jaxws.JaxWsServerFactoryBean;

import com.gx.webservice.IHelloWorld;
import com.gx.webservice.impl.HelloWorldImpl;

public class Server {
	static String address = "http://127.0.0.1:34563/helloWorld";
	
	@SuppressWarnings("deprecation")
	public static void main(String[] args) {
		System.out.println("web service start");
		IHelloWorld implementor = new HelloWorldImpl();
		JaxWsServerFactoryBean factoryBean = new JaxWsServerFactoryBean();
		factoryBean.setAddress(address); //设置暴露地址
		factoryBean.setServiceClass(IHelloWorld.class); //设置暴露接口类
		factoryBean.setServiceBean(implementor); //设置实现类
		
		//拦截器
		factoryBean.getInInterceptors().add(new LoggingInInterceptor());//in,日记拦截器
		factoryBean.getOutInterceptors().add(new LoggingOutInterceptor()); //out，日记拦截器
		
		factoryBean.create(); //创建webservice接口
		System.out.println("web service started");
	}
	
}

运行客户端Client.java查看效果

2、在客户端Client.java添加日记拦截器，需要在pom.xml先添加包，和服务端一样的，忘记看这里

package com.gx.webservice;

import java.util.List;

import org.apache.cxf.frontend.ClientProxy;
import org.apache.cxf.interceptor.LoggingInInterceptor;
import org.apache.cxf.interceptor.LoggingOutInterceptor;

public class Client {
	
	@SuppressWarnings("deprecation")
	public static void main(String[] args) {
		
		IHelloWorldService service = new IHelloWorldService();
		IHelloWorld helloworld = service.getIHelloWorldPort();
		
		org.apache.cxf.endpoint.Client client = ClientProxy.getClient(helloworld);
		client.getInInterceptors().add(new LoggingInInterceptor()); //添加in日记拦截器
		client.getOutInterceptors().add(new LoggingOutInterceptor()); //添加out日记拦截器
		
		//System.out.println(helloworld.say("zj"));
		
		/*User user = new User();
		user.setUsername("sa");
		user.setPassword("123");
		List<Role> rolelist = helloworld.getRoleByUser(user);
		for (Role role : rolelist) {
			System.out.println(role.getId()+","+role.getRoleName());
		}*/
		
		MyRoleArray array = helloworld.getRoles();
		List<MyRole> roleList = array.item;
		for (MyRole myRole : roleList) {
			System.out.print(myRole.key+":");
			for (Role role : myRole.value) {
				System.out.print(role.getId()+","+role.getRoleName());
			}
			System.out.println("=================");
		}
 		
	}
	
}

运行客户端Client.java查看效果，Intbound Message 、Outbound Message 和服务端相反

3、服务端添加自定义拦截器，创建com.gx.interceptor包，创建MyInInterceptor.java

package com.gx.interceptor;

import java.util.List;

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;
import org.w3c.dom.NodeList;

public class MyInInterceptor extends AbstractPhaseInterceptor<SoapMessage> {

	public MyInInterceptor() {
		super(Phase.PRE_INVOKE); //在调用方法前调用自定义拦截器
	}

	@SuppressWarnings("null")
	@Override
	public void handleMessage(SoapMessage message) throws Fault {
		//自定义拦截器内容
		List<Header> headers = message.getHeaders();
		if(headers==null && headers.size()==0){
			throw new Fault(new IllegalArgumentException("没有Header，拦截器拦截"));
		}
		Header firstHeader = headers.get(0);
		Element ele = (Element) firstHeader.getObject();
		NodeList uList = ele.getElementsByTagName("userName");
		NodeList pList = ele.getElementsByTagName("passworld");
		if(uList.getLength()!=1){
			throw new Fault(new IllegalArgumentException("用户名格式不对"));
		}
		if(pList.getLength()!=1){
			throw new Fault(new IllegalArgumentException("密码格式不对"));
		}
		String userName = uList.item(0).getTextContent();
		String password = pList.item(0).getTextContent();
		if(!userName.equals("sa") || !password.equals("123")){
			throw new Fault(new IllegalArgumentException("用户名或密码错误"));
		}
	}

}

在Server.java添加 factoryBean.getInInterceptors().add(new MyInInterceptor());//自定义拦截器

4、客户端添加自定义拦截器，创建com.gx.interceptor包，创建AddHeaderInterceptor.java

package com.gx.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.helpers.DOMUtils;
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;

public class AddHeaderInterceptor extends AbstractPhaseInterceptor<SoapMessage> {
	private String userName;
	private String password;
	
	public AddHeaderInterceptor(String userName, String password) {
		super(Phase.PREPARE_SEND); //准备发射soap消息之前
		this.userName = userName;
		this.password = password;
	}

	@Override
	public void handleMessage(SoapMessage message) throws Fault {
		//自定义拦截器处理内容，和服务器拦截器内容对应，这里为创建头Header
		List<Header> headerList = message.getHeaders();
		Document doc = DOMUtils.createDocument();
		Element ele = doc.createElement("authHeader");
		Element uElement = doc.createElement("userName"); 
		uElement.setTextContent(userName);
		Element pElement = doc.createElement("passworld");
		pElement.setTextContent(password);
		ele.appendChild(uElement);
		ele.appendChild(pElement);
		headerList.add(new Header(new QName("sa"), ele));
	}

}

在Client.java添加 client.getOutInterceptors().add(new AddHeaderInterceptor("sa","123")); //添加自定义拦截器

5、服务端发布服务，客户端测试

ok，看到发送内容，把client.getOutInterceptors().add(new AddHeaderInterceptor("sa","123"));的"123"改1234“错误密码测试

可看到自定义拦截器已拦截并throw错误了。

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