Grails 上载文件不会引发方法异常的签名(在getFile()方法中)
我试图上传一个文件,并将其存储在一个文件中。这是GSP中的代码:Grails 上载文件不会引发方法异常的签名(在getFile()方法中),grails,Grails,我试图上传一个文件,并将其存储在一个文件中。这是GSP中的代码: <g:form method="post" enctype="multipart/form-data" action="update"> <input type="file" name="cv" id="cv"/> <g:actionSubmit action="upload" name="upload" value="Upload" /> </g:form> 正如我在标题中所说
<g:form method="post" enctype="multipart/form-data" action="update">
<input type="file" name="cv" id="cv"/>
<g:actionSubmit action="upload" name="upload" value="Upload" />
</g:form>
正如我在标题中所说,我在这里有一个例外。有什么帮助吗?谢谢
编辑(完整堆栈跟踪,按请求):
问题是您的请求没有被视为多部分请求。这样做:
MultipartRequest multipartRequest = request as MultipartRequest
if(multipartRequest){
MultipartFile attachmentFile = multipartRequest.getFile("attachment_file".toString())
if (attachmentFile) {
-- copy it ---
}
}
我已经试过了代码,它对我有效,没有发现任何错误。我也没有发现任何错误,但异常仍在发生。也许是Grails版本问题?2.0.4版上的Im可能会尝试“grails clean”,请提供完整的stacktrace以确定此处发生了什么。这可能是配置问题,以下是一些可能有帮助的提示:
Error 500: Internal Server Error
URI
/com.publidirecta.azafatas/azafataCertificada/index
Class
groovy.lang.MissingMethodException
Message
No signature of method:org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestWrapper.getFile() is applicable for argument types: (java.lang.String) values: [cv] Possible solutions: getXML(), getPart(java.lang.String), getAt(java.lang.String), getAt(java.lang.String), getLocale(), getJSON()
Around line 1158 of grails-app/controllers/com/publidirecta/AzafataCertificadaController.groovy
1155: def upload(){
1156: println("Acción upload. Params: "+params)
1157: Azafata aza=Azafata.findByUsername(params.user)
1158: def f = request.getFile('cv')
1159: InputStream file = f.inputStream
1160: byte[] bytes = file.bytes
1161: }
Trace
Line | Method
->> 1158 | upload in AzafataCertificadaController.groovy
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
| 886 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker
| 908 | run . . in ''
^ 680 | run in java.lang.Thread
MultipartRequest multipartRequest = request as MultipartRequest
if(multipartRequest){
MultipartFile attachmentFile = multipartRequest.getFile("attachment_file".toString())
if (attachmentFile) {
-- copy it ---
}
}