spring mvc 下使用ajaxfileupload.js 异步上传文件 并返回信息 各种问题解决

业务需要用ajax异步上传excel文件并回传解析后的错误信息，后台spring mvc, jquery 2.1.3, ajaxfileupload.js

一 页面js代码：

$("#importUserButton").click(function(){
alert("here1");
$.ajaxFileUpload({
url:serverUri+"/user/importuser",
type: "POST",
cache : false,
secureuri:false,
fileElementId:"importUserFile",
dataType: "json",
success : function(data) {
alert(data.success);
},
error : function(data) {
alert("error");
}
});
});

二 后台代码：

IE10下返回json串会提示下载，所以ContentType设置为‘text’

@ResponseBody
@RequestMapping(value = "/importuser", method = RequestMethod.POST)
public Map<String,Object> importUser(HttpServletRequest request, HttpServletResponse response)
{
response.setContentType("text/html;charset=UTF-8");
MultipartHttpServletRequest mulRequest = (MultipartHttpServletRequest) request;
MultipartFile file = mulRequest.getFile("importUserFile");
String fileName = file.getOriginalFilename();
System.out.println("fileName:"+fileName);
Workbook wb = null;
try {
InputStream in = file.getInputStream();
if (fileName.endsWith(".xls") || fileName.endsWith(".XLS")) {
wb = new HSSFWorkbook(in);
} else if (fileName.endsWith(".xlsx") || fileName.endsWith(".XLSX")) {
wb = new XSSFWorkbook(in);
}
in.close();
} catch (IOException e) {
e.printStackTrace();
}
..........
..........

Map<String, Object> map = new HashMap<String, Object>();
map.put("success", "true");
return map;
}

三 ajaxfileupload.js 遇到过以下问题：

1.handleError 无法找到

2.上传后只执行error 函数

3.不支持IE(IE 下上传无反应)

附上改后全能的js文件。