Junit4 模拟requert请求进行测试

package com.hytera.mrps.util;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.Httpsession;import org.junit.Before;import org.junit.Test;import org.junit.runner.RunWith;import org.sPRingframework.mock.web.MockHttpServletRequest;import org.springframework.mock.web.MockHttpServletResponse;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration(locations = {"classpath*:/spring.xml"})public class OnlineUsersTest {    private MockHttpServletRequest request;    private MockHttpServletResponse response;        @Before      public void setUp(){        request = new MockHttpServletRequest();            request.setCharacterEncoding("UTF-8");            response = new MockHttpServletResponse();    }    @Test    public void test() {        HttpSession session = request.getSession(true);        session.setAttribute("mock", new OnlineUsers());    }}