1： Map IoC 方式
package com.action;
import java.util.Map;
import org.apache.struts2.interceptor.ApplicationAware;
import org.apache.struts2.interceptor.RequestAware;
import org.apache.struts2.interceptor.SessionAware;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction1 extends ActionSupport implements RequestAware,SessionAware,ApplicationAware {
private Map<String, Object> request;
private Map<String, Object> session;
private Map<String, Object> application;
public String add(){
request.put("r1", "r1");
session.put("s1", "s1");
application.put("a1", "a1");
return "success";
}
public void setRequest(Map<String, Object> request) {
this.request=request;
}
public void setSession(Map<String, Object> session) {
this.session=session;
}
public void setApplication(Map<String, Object> application) {
this.application=application;
}
}
2： Map 依賴容器 方式:
package com.action;
import java.util.Map;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction2 extends ActionSupport {
private Map<String, Object> request;
private Map<String, Object> session;
private Map<String, Object> application;
public UserAction2() {
ActionContext context = ActionContext.getContext();
request=(Map<String, Object>)context.get("request");
session=context.getSession();
application=context.getApplication();
}
public String add(){
request.put("r2", "r2");
session.put("s2", "s2");
application.put("a2", "a2");
return "success";
}
}
3： Servlet IoC 方式：
package com.action;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.apache.struts2.interceptor.ServletRequestAware;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction3 extends ActionSupport implements ServletRequestAware {
private HttpServletRequest request;
private HttpSession session;
private ServletContext application;
public String add() {
request.setAttribute("r3", "r3");
session.setAttribute("s3", "s3");
application.setAttribute("a3", "a3");
return "success";
}
public void setServletRequest(HttpServletRequest request) {
this.request=request;
this.session=request.getSession();
this.application=session.getServletContext();
}
}
4： Servlet 依賴容器 方式:
package com.action;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction4 extends ActionSupport 
{
private HttpServletRequest request;
private HttpSession session;
private ServletContext application;
public UserAction4() {
request = ServletActionContext.getRequest();
session=request.getSession();
application=session.getServletContext();
}
public String add(){
request.setAttribute("r4", "r4");
session.setAttribute("s4", "s4");
application.setAttribute("a4", "a4");
return "success";
}
}