ssh入门学习笔记之struts 内置对象

?struts2拿到session的三种方法。

其中ActionContext完全与web 容易不耦合。

?

1，通过ActionContext得到session，实现如下

?

ActionContext ac = ActionContext.getContext();

Map session = ac.getSession();

?

?

2,实现ServletRequestAware（只是只这一个就可以）,和ServletResponseAware接口

?

package cn.edu.cqupt.action;import java.util.Map;import javax.servlet.ServletRequest;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import org.apache.struts2.interceptor.ServletRequestAware;import org.apache.struts2.interceptor.ServletResponseAware;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;public class Login2Action extends ActionSupport implements ServletRequestAware,ServletResponseAware{private String username;private String password;private HttpServletRequest request;private HttpServletResponse response;@Overridepublic String execute() throws Exception {if(username.equals("kevin")&&password.equals("123456")){HttpSession session = request.getSession();session.setAttribute("result", "success");return SUCCESS;}return INPUT;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public void setServletRequest(HttpServletRequest request) {this.request=request;}public void setServletResponse(HttpServletResponse response) {this.response=response;}}

?

3、通过ServletActionContext 得到

HttpServletRequest request =ServletActionContext.getRequest();

HttpServletResponse response = ServletActionContext.getResponse();