Struts2DynamicResult动态接收结果集

UserAction.java

package org.bigjava.web.action;

import com.opensymphony.xwork2.ActionSupport;

public class UserAction extends ActionSupport {

	private String dr;
	private int userType;	// 用户类型 1:管理员 0:普通用户
	
	public String getDr() {
		return dr;
	}

	public void setDr(String dr) {
		this.dr = dr;
	}

	public int getUserType() {
		return userType;
	}

	public void setUserType(int userType) {
		this.userType = userType;
	}

	@Override
	public String execute() throws Exception {
		
		if (userType == 0) {
			dr = "/admin.jsp";
		} else if (userType == 1) {
			dr = "/manager.jsp";
		}
		return SUCCESS;
	}
	
}

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
	<package name="user" extends="struts-default" namespace="/">
		<action name="login" class="org.bigjava.web.action.UserAction">
			<result>
				<!-- ${}ONGL表达式，${dr}获取UserAction值栈中dr的值 -->
				${dr};
			</result>
		</action>
	</package>
</struts>    

login.jsp

<body>
  	<h2>普通用户0，管理员1</h2>
    <form action="login" method="post">
    	<input type="text" name="usertype" />
    	<input type="submit" />
    </form>
  </body>

manager.jsp

<body>
    This is Administrator page. <br>
</body>

admin.jsp

<body>
    This is user page. <br>
</body>