Struts2+OGNL传递参数List，Map的一个小例子

Struts2中继承了Webwork的强大OGNL，下面是一个例子：

index.jsp：提交列表

<s:form action="ognl">

<s:textfield name="list[0]" label="list[0]="/>

<s:textfield name="list[1]" label="list[1]="/>

<s:textfield name="list[2]" label="list[2]="/>

<s:textfield name="map['name']" label="map['name']="/>

<s:textfield name="map['pass']" label="map['pass']="/>

<s:submit></s:submit>

</s:form>

其中list[0]，list[1]，list[2]对应被添加到Action的list中！

Action：

package actions;

import com.opensymphony.xwork2.ActionSupport;

import java.util.*;

import javax.servlet.ServletRequest;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.interceptor.ServletRequestAware;

public class OGNLValue extends ActionSupport implements ServletRequestAware

{

List list;

Map<String,String> map;

String var;

ServletRequest req=null;

public void setVar(String v)

{

var = v;

}

public String getVar()

{

return var;

}

public void setList(List l)

{

list = l;

}

public List getList()

{

return list;

}

public void setMap(Map m)

{

map = m;

}

public Map getMap()

{

return map;

}

public String execute()

{

req.setAttribute("list", list);

req.setAttribute("map", map);

return "OK";

}

public void setServletRequest(HttpServletRequest arg0)

{

req = arg0;

}

}

show.jsp

<s:property value="#request.list[0]"/>

<s:property value="#request.map['name']"/>

struts.xml

<action name="ognl" <result name="OK">/show.jsp</result>

<result name="ERROR">/jsp/error.jsp</result>

</action>