将表单数据提交到Java集

本文介绍了将表单数据提交到Java集的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

是否可以在Struts2的操作中将表单的数据提交到Java Set?

Is it possible to submit a form's data to a java Set in an action of Struts2?

操作代码:

class TestAction extends ActionSupport{ private Set<Integer> mySet = new LinkedHashSet<Integer>(); public TestAction(){ } public String test(){ someMethod(mySet); } ... Getters/Setters ... }

表单代码:

<form action="test.action" > <input name="mySet[0]" /> <input name="mySet[1]" /> <input name="mySet[2]" /> <submit /> </form>

推荐答案

Set只是一个集合，Struts2内部支持任何类型的集合.但是对于这种类型的集合，您不能在OGNL表达式中使用索引.试试

The Set is just a collection, and Struts2 has support for any type of collections internally. But for this type of collection you can't use indexes in your OGNL expressions. Try

<form action="test.action" > <input name="mySet" /> <input name="mySet" /> <input name="mySet" /> <s:submit /> </form>