jstl自增参数的做法

很久没用jstl的标签了。今天突然用到做在页面做一个由自增ID。复习了一下，写下来给备后用。

html:

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<c:set var="index" value="1"></c:set><c:forEach items="${userlist}" var="u"><input type="text" id="${u.name  }${index }">         <c:set var="index" value="${index + 1 }"></c:set></c:forEach>

?java:

package com.longflang.action;import java.util.ArrayList;import java.util.List;import org.apache.struts2.convention.annotation.Result;import org.apache.struts2.convention.annotation.Results;import com.longflang.vo.User;import com.opensymphony.xwork2.ActionSupport;@Results( { @Result(name = "list", location = "/result.jsp") })public class LoginAction extends ActionSupport {private List<User> userlist;@Overridepublic String execute() throws Exception {userlist = new ArrayList<User>();userlist.add(new User("longflang", "19"));userlist.add(new User("long", "18"));userlist.add(new User("flang", "17"));return "list";}public List<User> getUserlist() {return userlist;}public void setUserlist(List<User> userlist) {this.userlist = userlist;}}

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