WebService 拦截器

** jdk写的程序不支持拦截器，需要使用cxf框架，导入cxf的jar包**

拦截器分为In拦截器和out拦截器

拦截器

为服务端添加日志拦截器

        JaxWsServerFactoryBean factory = new JaxWsServerFactoryBean();
        
        //设置Service Class
        factory.setServiceClass(HelloWS.class);
        factory.setAddress(address);
        //设置ServiceBean对象
        factory.setServiceBean(new HelloWS());
        
        //添加请求和响应的拦截器，日志拦截器
        factory.getInInterceptors().add(new LoggingInInterceptor());  //请求
        factory.getOutInterceptors().add(new LoggingOutInterceptor()); //响应
        
        factory.create();

启动之后 日志拦截器就会拦截请求与响应，将日志输出来

** 自定义拦截器 **
自定拦截器需要实现Imterceptor接口。实际上一般会继承AbstractPhaseInterceptor抽象类，CXF框架本身定义了很多拦截器，很多可以直接使用

• 在客户端程序新建一个类，继承AbstractPhaseInterceptor类，重写handleMessage方法

public class CheckUserInterceptor extends AbstractPhaseInterceptor{

    public CheckUserInterceptor() {
        //调用父类的构造器初始化AbstractPhaseInterceptor
        super(Phase.PRE_PROTOCOL);
    }

    @Override
    public void handleMessage(SoapMessage message) throws Fault {
        Header header = message.getHeader(new QName("zlb"));
        if(header != null){
            Element element = (Element) header.getObject();
            String userName = element.getElementsByTagName("name").item(0).getTextContent();
            String userPass = element.getElementsByTagName("password").item(0).getTextContent();
            if(userName.equals("test") && userPass.equals("123456")){
                System.out.println("用户名密码正确!");
                return;
            }
            throw new RuntimeException("用户名密码不正确!");
        }
    }

以上自定义的拦截器，会在当前的请求头里添加一段请求头信息

test
123456




tom

• 将自定义的拦截器添加进去

        //WSImport 方式
        HelloWSService factory = new HelloWSService();
        HelloWS ws = factory.getHelloWSPort();
        //将自定义的拦截器加入
        Client client = ClientProxy.getClient(ws);
        List> outInterceptor = client.getOutInterceptors();
        outInterceptor.add(new LoginInterceptor("test", "123456"));
        
        ws.sayHello("tom");

• 服务端拦截器获取请求头信息

public class CheckUserInterceptor extends AbstractPhaseInterceptor{
    public CheckUserInterceptor() {
        super(Phase.PRE_PROTOCOL);
    }

    @Override
    public void handleMessage(SoapMessage message) throws Fault {
        Header header = message.getHeader(new QName("zlb"));
        if(header != null){
            Element element = (Element) header.getObject();
            String userName = element.getElementsByTagName("name").item(0).getTextContent();
            String userPass = element.getElementsByTagName("password").item(0).getTextContent();
            if(userName.equals("test") && userPass.equals("123456")){
                System.out.println("用户名密码正确!");
                return;
            }
            throw new RuntimeException("用户名密码不正确!");
        }
    }

}

• 将服务端自定义的拦截器添加进去

          //地址
        String address = "http://127.0.0.1:8989/WebServices_service";
        
        //java  JDK版  发布
        /*Endpoint.publish(address, new HelloWS());*/
        
        JaxWsServerFactoryBean factory = new JaxWsServerFactoryBean();
        
        //设置Service Class
        factory.setServiceClass(HelloWS.class);
        factory.setAddress(address);
        
        //添加请求和响应的拦截器，日志拦截器
        factory.getInInterceptors().add(new LoggingInInterceptor());  //请求
        factory.getInInterceptors().add(new CheckUserInterceptor());  //自定义拦截器
        factory.getOutInterceptors().add(new LoggingOutInterceptor()); // 响应
        
        factory.create();