Struts2中獲取http請求對象的各種方法

jopen 11年前發布 | 25K 次閱讀 Struts2 Web框架 

import java.util.Map;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ApplicationAware;
import org.apache.struts2.interceptor.RequestAware;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;
import org.apache.struts2.interceptor.SessionAware;
import org.apache.struts2.util.ServletContextAware;


import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;


@SuppressWarnings( { "serial", "unused", "unchecked" })
public class GetHttp extends ActionSupport implements ServletRequestAware,
  ServletResponseAware, RequestAware, SessionAware, ServletContextAware,
  ApplicationAware {


private HttpServletRequest request;


private HttpServletResponse response;


private HttpSession session;


private Map<String, Object> requestMap, sessionMap, contextMap;


private ServletContext context;


@Override
 public String execute() throws Exception {
  this.request = ServletActionContext.getRequest();
  this.request = (HttpServletRequest) ActionContext.getContext().get(
    ServletActionContext.HTTP_REQUEST);


this.session = this.request.getSession();
  this.sessionMap = ActionContext.getContext().getSession();
  this.sessionMap = ServletActionContext.getContext().getSession();// 調用父類ActionContext的方法
  this.sessionMap = (Map<String, Object>) ActionContext.getContext().get(
    ServletActionContext.SESSION);


this.response = ServletActionContext.getResponse();
  this.response = (HttpServletResponse) ActionContext.getContext().get(
    ServletActionContext.HTTP_RESPONSE);


this.context = this.session.getServletContext();
  this.context = ServletActionContext.getServletContext();
  this.context = (ServletContext) ActionContext.getContext().get(
    ServletActionContext.SERVLET_CONTEXT);
  this.contextMap = ActionContext.getContext().getApplication();
  this.contextMap = ActionContext.getContext().getContextMap();
  this.contextMap = (Map<String, Object>) ActionContext.getContext().get(
    ActionContext.APPLICATION);
  this.contextMap = (Map<String, Object>) ActionContext.getContext().get(
    ServletActionContext.APPLICATION);


return SUCCESS;
 }


public void setServletRequest(HttpServletRequest request) {
  this.request = request;
 }


public void setServletResponse(HttpServletResponse response) {
  this.response = response;
 }


public void setRequest(Map<String, Object> requestMap) {
  this.requestMap = requestMap;
 }


public void setSession(Map<String, Object> sessionMap) {
  this.sessionMap = sessionMap;
 }


public void setServletContext(ServletContext context) {
  this.context = context;
 }


public void setApplication(Map<String, Object> contextMap) {
  this.contextMap = contextMap;
 }
}</pre>
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