html:

<!--upload html-->
<input type="file" id="file" name="file" value="選擇檔案" />
<input type="button" value="上傳" onclick="upload();"/>
<!--upload js--->
<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript" src="js/ajaxfileupload.js"></script>
<script type ="text/javascript">
	var upload = function(){
		$.ajaxFileUpload({
		   url: 'map/upload',
		   secureuri: false,
		   fileElementId: 'file',
		   dataType: 'json',
		   success: function (data, status){
				alert("上傳成功");
		   },
		   error: function (data, status, e){
				alert("上傳失敗");
		   }
	   });
	}
</script>
 

/**
* 所用jar
這裡用的sping mvc 當然用其他的上傳得到流也是可以的
* jxl-2.4.3.jar
* org.apache.common.io.jar
* org.apache.common.fileupload.jar
*/
//上傳接收
@RequestMapping("/upload")
public void upload(HttpServletRequest request, HttpServletResponse response) throws IOException{
	 MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;  
	 List<MultipartFile> fileList = multipartRequest.getFiles("file");  
	 for (MultipartFile mf : fileList) { 
		 if(!mf.isEmpty()){  
			 parseExcel(mf);
			 break;
		 }
	 }
	 //返回json
	 toJson("{'status', 1}");
}
//解析表格
public void parseExcel(MultipartFile mf){
	Workbook workbook  =   null ;
	try {
		workbook  =  Workbook.getWorkbook(mf.getInputStream());
		Sheet sheet  =  workbook.getSheet(0);
		int  count  =  sheet.getRows();
		for (int  i= 1 ;i  <  count;i ++){
		   Cell[] cells  =  sheet.getRow(i);
		   System.out.println(cells);
		}
	}catch (Exception e){
	   e.printStackTrace();
	} finally {
		if (workbook != null ){
		   workbook.close();
		}
	}
}