Struts2中獲取JSP內置對象的方法

ccfc 9年前發布 | 5K 次閱讀 Java

Struts2中獲取HttpRequest,HttpResponse,HttpSession,Application,ServletContext及相關的Map對象。 

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 Test 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;
}

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

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

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

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

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

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



}</pre>
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