在类中获取得到路径，request,response,session
package com.ru.action;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import org.apache.struts2.ServletActionContext;import org.hibernate.SessionFactory;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;import com.ru.service.interfaces.TestServiceInterface;public class TestAction extends ActionSupport {/** * 声明变量 * @remark 所有变量，常量 * */private SessionFactory sessionfactory;private TestServiceInterface testService;public TestServiceInterface getTestService() {return testService;}public void setTestService(TestServiceInterface testService) {this.testService = testService;}public SessionFactory getSessionfactory() {return sessionfactory;}public void setSessionfactory(SessionFactory sessionfactory) {this.sessionfactory = sessionfactory;}/** * 测试action得到路径，request,response,session * @remark 在service和dao类中得到requsest，response，和session的方法相同 * */public String getPath(){/** * 得到request的方法 * */HttpServletRequest request = ServletActionContext.getRequest();/** * 得到response的方法 * */HttpServletResponse response = ServletActionContext.getResponse();/** * 得到session的到方法 * *///第一种HttpSession session = ServletActionContext.getRequest().getSession();session.setAttribute("nan", "456");session.setMaxInactiveInterval(10*60);//单位秒//第二种（这种写入session信息，但是）ActionContext.getContext().getSession().put("ru", "123");String msg = (String) ActionContext.getContext().getSession().get("ru");System.out.println("第一种session:"+testService.getSession()+"\n第二种得到map里的信息："+msg);/** * 得到web系统url路径的方法 * *///得到web的url路径：http://localhost:8080/ssh1/String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";System.out.println("当前webURL路径："+basePath+"---web路径："+path);/** * 得到文件的绝对路径 * @remark 所谓的真是路径即使在原路径前面加上web系统的路径,如果要找到在tomcat中的路径，需要注意 * @remark D:\ProgramFiles\apache-tomcat-6.0.20-8.5\webapps\ssh1\WEB-INF\classes\com\ru\.util\test.properties * */String path2 = ServletActionContext.getRequest().getRealPath("/WEB-INF/classes/com/ru/util/test.properties");System.out.println("文件真实路径："+path2);/** * 得到类文件路径 * @remark /D:/ProgramFiles/apache-tomcat-6.0.20-8.5/webapps/ssh1/WEB-INF/classes/com/ru/tuil/test.properties * */String rootPath = TestAction.class.getResource("/").getPath();//得到calsses的路径String path3=rootPath+"com/ru/util/test.properties";System.out.println(path3);/** * 得到远程IP * */String IP = request.getRemoteAddr();System.out.println("远程IP:"+IP);return "testOk";}}?