被這個檔案上傳坑到現在，還是自己技術問題，照著之前extjs專案那邊的上傳例項，愣是上傳不了

easyui 前端檔案

<form id="brandAddForm" method="post" enctype="multipart/form-data">
		  <table cellpadding="5">
                <tr>
                    <td>名稱:</td>
                    <td><input class="easyui-textbox" type="text" name="name" data-options="required:true" style="width:200px"></input></td>
                </tr>
                <tr>
                   <td>描述:</td>
                    <td><input class="easyui-textbox" name="description" data-options="multiline:true" style="height:100px;width:200px"></input></td>
                </tr>
                <tr>
                    <td>URL:</td>
                    <td><input class="easyui-textbox" name="url" style="width:200px"></td>
                </tr>
                <tr>
                    <td>LOGO:</td>
                    <td><input class="easyui-filebox" name="sourceFile" style="width:200px"></td>
                </tr>
               <tr>
                    <td>關鍵詞:</td>
                    <td><input class="easyui-textbox" type="text" name="keywords" data-options="" style="width:200px"></input></td>
                </tr>
            </table>

		</form>
 

 <!-- SpringMVC上傳檔案時，需要配置MultipartResolver處理器 -->  
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  
        <property name="defaultEncoding" value="UTF-8"/>  
        <!-- 指定所上傳檔案的總大小不能超過200KB。注意maxUploadSize屬性的限制不是針對單個檔案，而是所有檔案的容量之和 -->  
        <property name="maxUploadSize" value="200000"/>  
    </bean>  
      
    <!-- SpringMVC在超出上傳檔案限制時，會丟擲org.springframework.web.multipart.MaxUploadSizeExceededException -->  
    <!-- 該異常是SpringMVC在檢查上傳的檔案資訊時丟擲來的，而且此時還沒有進入到Controller方法中 -->  
    <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">  
        <property name="exceptionMappings">  
            <props>  
                <!-- 遇到MaxUploadSizeExceededException異常時，自動跳轉到/WEB-INF/jsp/error_fileupload.jsp頁面 -->  
                <prop key="org.springframework.web.multipart.MaxUploadSizeExceededException">error_fileupload</prop>  
            </props>  
        </property>  
    </bean>  
 

model

public class BrandModel {

	private Integer id;
	private String name;
	private String description;
	private String url;
	private String icon;
	private MultipartFile sourceFile; //對應<span style="font-family: Arial, Helvetica, sans-serif;"><input class="easyui-filebox" name="sourceFile" style="width:200px"></span>

        //set/get
}
 

FileUtils.copyInputStreamToFile(brandModel.getSourceFile().getInputStream(), new File(targetPath));