java Struts2 以单一形式处理多个动作
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Struts2 handle multiple actions in single form
提问by gmeka
I have a form contains three buttons print/export/save.
我有一个表单包含三个按钮print/ export/ save。
<s:form action="/userAction">
<s:submit type="image" value="%{'print'}" src="/print.png" />
<s:submit type="image" value="%{'export'}" src="/export.png" />
<s:submit type="image" value="%{'save'}" src="/save.png" />
</s:form>
How can I map this in struts.xml?
我怎样才能把它映射到struts.xml？
采纳答案by Roman C
In the struts.xmlthe action is mapped via the <actiontag
在struts.xml动作是通过<action标签映射的
<action name="userAction" class="...
the submit buttons should include methodattribute to call corresponding methods of the action
提交按钮应包含method属性以调用相应的操作方法
<s:submit type="image" value="%{'print'}" src="/print.png" method="print" />
<s:submit type="image" value="%{'export'}" src="/export.png" method="export" />
<s:submit type="image" value="%{'save'}" src="/save.png" method="save" />
回答by Aleksandr M
In order to use methodattribute of the <s:submit>tag DynamicMethodInvocationmust be enabled. Another solution is to use actionattribute.
为了使用标签的method属性，必须启用。另一种解决方案是使用属性。<s:submit>DynamicMethodInvocationaction
In JSP:
在 JSP 中：
<s:form action="save">
<s:submit type="image" value="%{'print'}" src="/print.png" action="print" />
<s:submit type="image" value="%{'export'}" src="/export.png" action="export" />
<s:submit type="image" value="%{'save'}" src="/save.png" />
</s:form>
In struts.xml:
在 struts.xml 中：
<action name="print" class="...">
<result>...</result>
</action>
<action name="export" class="...">
<result>...</result>
</action>
<action name="save" class="...">
<result>...</result>
</action>
