Apache Struts 2 Tag: select for selected

From: Polin Wei

 要讓 Select 設定預設的選項可以參考 https://struts.apache.org/docs/select.html 的範例

<s:select label="Months"

       name="months"

       headerKey="-1" headerValue="Select Month"

       list="#{'01':'Jan', '02':'Feb', [...]}"

       value="selectedMonth"

       required="true"

/>

// The month id (01, 02, ...) returned by the getSelectedMonth() call

// against the stack will be auto-selected

範例的意是是說，當 Action 執行時，會先呼叫 getSelectedMonth() 這個 method，只要在這個 method 中回傳值，就可以有預設選項了.

https://struts.apache.org/docs/select.html