extjs+SpringMVC上传文件

前台Extjs：

{xtype : 'panel',

border:0,
    items : [
        {
            xtype : 'form',
            itemId: 'datasourceId',
            bodyPadding: 5,
            title : '数据源',
            layout: {
                type:'hbox',
                padding:'3'
            },
            items : [
                {
                    xtype: 'fileuploadfield',
                    fileUpload: true,//chrome浏览器 必须设置为true
                    width:560,
                    labelAlign: 'right',
                    labelWidth: 60,
                    id:'upFile',
                    name: 'upFile',
                    fieldLabel: '*文件名',
                    labelStyle : 'color:red;',
                    allowBlank: false,
                    emptyText:'请选择xls或者xlsx格式的文件',
                    buttonText: '选择文件',
                    regex:/\.xls$|\.xlsx$/,
                    invalidText :'文件格式不正确'
                },
                {
                    xtype: 'button',
                    itemId: 'parseFile',
                    text: '解析文件',
                    handler: 'analysisFile'
                }
            ]
  	}      

]}      

前台Controller:      

/**
 * 上传文件
 * @param btn
 * @returns {boolean}
 */
analysisFile: function(btn) {
    var me = btn.up('createfondsimport');
    var myform=me.down('form[itemId="datasourceId"]');
    var form = myform.getForm();
    if(form.isValid()){
        var path = form.getValues().upFile;
        var exp = '\.xls$|\.xlsx$';
        console.log("path:  "+path);
        var patt = new RegExp(exp);
        if(!patt.test(path)){
            Ext.Msg.alert('系统提示','导入文件必须是xls文件或者xlsx！！！');
            return ;
        }
        myform.getEl().mask("正在解析文件，请等待...");
        form.submit({
            url : 'mvc/dispatch',
            timeout: 100000,
            method:'post',
            params : {
                action:'FondAction',
                method:'analysisExcel'
            },
            success : function(response){
                var text = response.responseText.result;
                console.log(response);
                console.log(text);
            },
            failure : function(response){
                myform.getEl().unmask();
                Ext.Msg.alert('系统提示','操作失败！');
                return ;
            }
        });
    }
}      
    
后台Action：      
    
@Controller("FondAction")      
    
public class FondAction(){      
    
@RequestMapping(value = "/analysisExcel")
public void upLoad(HttpServletRequest request,HttpServletResponse response) throws IOException {
	MultipartFile file = ((MultipartHttpServletRequest)request).getFile("upFile");
	System.out.println("file : \n"+ file);
	System.out.println("file size:   \n"+file.getSize());
	System.out.println("file Name :   \n"+file.getName());
	System.out.println("file ContentType :   \n"+file.getContentType());
	System.out.println("file OriginalFilename :   \n"+file.getOriginalFilename());
	InputStream fs = null;
	HSSFWorkbook workbook = null;
	try {
		fs = file.getInputStream();
		workbook = new HSSFWorkbook(fs);
		log.debug("xssf workbook: \n"+workbook);
	} catch (IOException e) {
		system.out.println("******** 异常发生在FondAction.analysisExcel获取文件流时");
		e.printStackTrace();
	}
	
	HSSFSheet sheet = workbook.getSheetAt(0);
	HSSFRow row = sheet.getRow(0);
	HSSFCell cell = row.getCell(0);
	String value = cell.getStringCellValue();
	
	System.out.println("*********************value:   \n"+value);
	
	// 清空response  
    response.reset();  
    // 设置response的content type  
    response.setContentType("text/html;charset=utf-8");
	reponse.getWriter().write(value);
}
      
   

}