cxf设置代理访问webservice接口

import org.apache.cxf.configuration.security.ProxyAuthorizationPolicy;
import org.apache.cxf.endpoint.Client;
import org.apache.cxf.frontend.ClientProxy;
import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
import org.apache.cxf.transport.http.HTTPConduit;
import org.apache.cxf.transports.http.configuration.HTTPClientPolicy;public class TeacherService {
    
    public String getStudents(ReqPosition position){
        JaxWsProxyFactoryBean factoryBean = new JaxWsProxyFactoryBean();  
        factoryBean.setServiceClass(TeacherWebService.class);  
        factoryBean.setAddress("http://xxx.xxx.xxx.xxx/webservice?wsdl");  
        TeacherWebService tService = (TeacherWebService )factoryBean.create();  
            
    　　 Client client = ClientProxy.getClient(tService);
        HTTPConduit http = (HTTPConduit) client.getConduit();
        HTTPClientPolicy hcp = new HTTPClientPolicy();
        hcp.setProxyServer(proxyHost);
        hcp.setProxyServerPort(proxyport);
        http.setClient(hcp);

        ProxyAuthorizationPolicy proxyAuthorization = new ProxyAuthorizationPolicy();
        proxyAuthorization.setUserName(proxyUsername);
        proxyAuthorization.setPassword(proxyPassword);
        http.setProxyAuthorization(proxyAuthorization);
        
        String res = tService.getStudents();
        
        return res;
    }
}