Java 在Grails2.3.7中上载文件时出错
我将在发送电子邮件时附上一个文件Java 在Grails2.3.7中上载文件时出错,java,spring,grails,Java,Spring,Grails,我将在发送电子邮件时附上一个文件 <g:formRemote id="emailWidgetForm" name="emailOrderMailForm" enctype="multipart/form-data" on404="alert('not found!')" onLoading="showSpinner('emailWidget');" onComplete="hideSpinner();" url="[controller: 'emailSender', action:
<g:formRemote id="emailWidgetForm" name="emailOrderMailForm" enctype="multipart/form-data"
on404="alert('not found!')"
onLoading="showSpinner('emailWidget');" onComplete="hideSpinner();"
url="[controller: 'emailSender', action:'sendPersonalEmailToCustomer']"
action="${createLink(controller: 'emailOrder', action:
'sendPersonalEmailToCustomer')}"
before="if( validateGivenForm( 'emailWidgetForm' ) ) { " after="}">
<tr>
<td><strong>Attachment</strong></td>
<td><input type="file" size="10" name="attachments"/></td>
</tr>
<g:submitButton name="sendEmailButton" class="btn btn-primary pull-right"
value="Send Email"/>
</g:formRemote>
我在上面这一行有错误
错误是
groovy.lang.MissingMethodException: No signature of method:
org.springframework.security.web.servletapi.HttpServlet3RequestFactory$Servlet3SecurityContextHolderAwareRequestWrapper.getFile() is applicable for argument types: (java.lang.String) values: [attachments]
Possible solutions: getXML(), getPart(java.lang.String), getAt(java.lang.String), getAt(java.lang.String), getLocale(), getJSON()
请帮助我。[编辑-根据Burt的评论,忽略这一点。它只能在Java/Spring中工作] 您可能必须将您的
请求
对象强制转换为通常的多路径服务请求
:
MultipartHttpServletRequest mhsr = (MultipartHttpServletRequest) request
MultipartFile file = mhsr.getFile("attachments")
由于Spring security似乎正在注入它自己的
Servlet3Security ContextHolderAwareRequestWrapper
版本的请求
,我猜这是有问题的,只需在配置文件中设置grails.web.disable.multipart=true
,这就是Groovy-强制转换永远不会有助于访问属性或方法(使用@CompileStatic
时除外,它需要像Java一样进行大量强制转换),因为它不是由您在编译时声称的类型来解析的,但根据它在运行时的实际情况。在任何ServletAPI应用程序中,“真实”容器创建的请求将被代理多次,Grails和Spring添加了额外的请求,SpringSecurity核心插件添加了一到两个请求,其中有很多层(大约7个iirc)
MultipartHttpServletRequest mhsr = (MultipartHttpServletRequest) request
MultipartFile file = mhsr.getFile("attachments")