如何在Struts2应用程序中使用Ajax提交表单

问题描述：

我正在运行Struts2应用程序.

I'm running a Struts2 application.

我想在提交表单之前运行Ajax函数.

I want to run an Ajax function before submitting the form.

为此，我想在单击提交"按钮时调用Ajax函数接着从Ajax调用form.submit().

For this, I want to call the Ajax function on clicking submit button and then call the form.submit() from Ajax.

我可以在这里做吗?因为表格必须提交给行动

Can I do this here? Because the form has to submit to an action

<s:form action="saveFile" method="post" enctype="multipart/form-data" id="form1">
  <label for="myFile">Upload your file</label>
  <s:file name="myFile" id="myFile"/>
  <s:submit id="submit123" value="Upload" />
</s:form>

答

通过struts2-jquery插件非常容易在Struts中使用Ajax.

Using Ajax in Struts very easy with struts2-jquery plugin.

<%@ taglib prefix="s" uri="/struts-tags"%>
<%@ taglib prefix="sj" uri="/struts-jquery-tags"%>
<html>
  <head>
    <sj:head/>
  </head>
  <body>
    <s:form action="saveFile" method="post" enctype="multipart/form-data" id="form1">
        <label for="myFile">Upload your file</label>
        <s:file name="myFile" id="myFile"/>
        <sj:submit formId="form1" value="Upload" />
    </s:form>
  </body>
</html>

form.submit()未使用Ajax，如果要从JavaScript手动调用Ajax，则需要使用XHR.

The form.submit() is not using Ajax, if you want manually call Ajax from JavaScript you need to use XHR.

如何在Struts2应用程序中使用Ajax提交表单

相关推荐