dwr3.0+spring3.1实现网页聊天

package com.demo.dwr3.spring3.service; import java.util.List; import org.directwebremoting.annotations.RemoteMethod; import org.directwebremoting.annotations.RemoteProxy; import org.directwebremoting.spring.SpringCreator; import org.springframework.beans.factory.annotation.Autowired; import com.demo.dwr3.spring3.bean.User; import com.demo.dwr3.spring3.dao.TestDao; @RemoteProxy(creator = SpringCreator.class, name = "testService") public class TestService { @Autowired TestDao testDao; @RemoteMethod public void sayHello(User user)throws Exception { //Thread.sleep(1000); testDao.test(); } @RemoteMethod public void sayHello(List<User> ulist) { for(User u:ulist){ System.out.println(u.getName()); } } }