Grails request.getFile（）在控制器中返回null_Grails_File Upload_Multifile Uploader

Grails request.getFile（）在控制器中返回null

grails file-upload

Grails request.getFile（）在控制器中返回null,grails,file-upload,multifile-uploader,Grails,File Upload,Multifile Uploader,我正在实现多文件上传功能我的表格如下： <form controller="upload" action="uploadfiles" method="post" enctype="multipart/form-data"> Upload Form: <br/> <input type="file" name="srcFile" multiple/> <input type="sub

我正在实现多文件上传功能

我的表格如下：

<form controller="upload" action="uploadfiles" method="post" enctype="multipart/form-data">
            Upload Form: <br/>
            <input type="file" name="srcFile" multiple/>
            <input type="submit"/>
        </form>

当我选择该文件并单击“提交”时，出现以下错误：

URI
/FindMissingIsirs/upload/uploadfiles
Class
java.lang.NullPointerException
Message
Cannot get property 'empty' on null object    URI
/FindMissingIsirs/upload/uploadfiles
Class
java.lang.NullPointerException
Message
Cannot get property 'empty' on null object

谁能帮帮我吗

感谢

log.info参数

并向我们展示提交的内容？2015-03-06 09:47:40391[Thread-12]错误堆栈跟踪-完整堆栈跟踪：java.lang.NullPointerException:无法在CacheGrailsPlugin$\u closure4.doCall（CacheGrailsPlugin.groovy:184）的null对象上获取属性“cacheOperationSource”您是从

log.info参数

获得此信息的吗？

URI
/FindMissingIsirs/upload/uploadfiles
Class
java.lang.NullPointerException
Message
Cannot get property 'empty' on null object    URI
/FindMissingIsirs/upload/uploadfiles
Class
java.lang.NullPointerException
Message
Cannot get property 'empty' on null object