struts2 jpg文件上传失败 Content

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struts2 jpg文件上传失败 Content-Type not allowed

org.apache.struts2.interceptor.FileUploadInterceptor - Content-Type not allowed: upload "upload__75549ca5_1239ddc5ce6__8000_00000161.tmp" image/pjpeg

原有配置:用ext+struts2上传时一直显示进度条不消失：

<action name="xxxAction"
    class="com.web.action.xxxAction">
    <interceptor-ref name="fileUpload">
     <param name="allowedTypes">
     image/bmp,image/png,image/gif,image/jpeg,image/jpg
     </param>
     <param name="maximumSize">200000000000</param>
    </interceptor-ref>
    <interceptor-ref name="defaultStack" />
    <result>/welcome.jsp</result>
   </action>

原因：ie会把 jpg、jpeg翻译成image/pjpeg，png翻译成image/x-png 。而火狐则很标准：jpg、jpeg翻译成image/jpeg，png翻译成image/png。

解决方法：

     <param name="allowedTypes">
     image/bmp,image/png,image/gif,image/jpeg,image/jpg,image/x-png, image/pjpeg
     </param>

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