在 Struts 2 中提交时提交 JS 函数值

Question

如何通过 JavaScript function将<s:form>隐藏字段内设置的值传递给点击此<s:form>的<s:submit>按钮的动作类？

Answer 1

The values should be in the CSV format like in this answer.

That will also give you an idea about type of property which you should bind to the hidden field. For example you can use List<Integer> or Integer[] for the property that set the values 25, 27, 28 .

Struts2 has a built-in converter that converts such values to the list or array automatically.

Also note the instance variable in the action class can't be used by OGNL (by default) if it is not accessible by security manager or has not public accessors like getters and setters. In Struts2 submitted values are populated to the instance variable by the params interceptor which is indeed invokes OGNL to do the job.