问题：解决上传文件IE浏览器弹出下载框bug？

发布时间：2023-09-06 01:28责任编辑：顾先生关键词：浏览器

控制器方法的返回值必须以String返回，再由js处理转换成json对象

$.ajaxFileUpload({

url: "/project/proj_conver_upload", // 需要链接到服务器地址

secureuri: false,

fileElementId: "fileBtn"， // 文件选择框的id属性

data: {},

dataType: ‘json‘, // 服务器返回的格式，可以是json

complete: function(response, status) {

var responseText = response.responseText;

if (responseText.indexOf(">") != -1&& (responseText.indexOf("PRE") != -1 || responseText.indexOf("pre") != -1)) {

responseText = responseText.substring(responseText.indexOf(">") + 1, responseText.lastIndexOf("<"));

}

var data = eval("(" + responseText + ")");//转换成json对象

if(data.retCode!="200"){

showWarning(data.msg);

return;

}else{

$("#avaImg").attr("src", data.results);

$("#projFileName").val(fileName);

$("#ava").val(data.results);

$("#fileBtn").css("display", "block");

$("#projFileNameSpan").html("");

}

error: function(data, status, e) {

console.log(data.msg);

}

});

服务器中控制层：

@RequestMapping(value = "/proj_conver_upload",method = RequestMethod.POST,produces = { "text/html;charset=UTF-8" })

@ResponseBody

public String projConverUpload(@RequestParam(value = "fileBtn", required = true) MultipartFile file,

HttpServletRequest request,HttpServletResponse response) throws Exception {

response.setContentType("text/html");

response.setCharacterEncoding("UTF-8");

long size = file.getSize()/1014/1014;

LOG.debug("logoImgSize: "+ size+"M");

if(size>=2){

return JsonHelper.toJsonString(new Result(CodeConstant.RETCODE_500, "图片附件不能大于2M"));

}

String fileName = file.getOriginalFilename();

if(!FileHelper.isPic(fileName)){

return JsonHelper.toJsonString(new Result(CodeConstant.RETCODE_500, "请上传正确的图片格式"));

}

fileName = UUIDFileName(file.getOriginalFilename());

FileUploadUtil.transferTo(file, getTempDic(request), fileName);

Result<String> result = new Result<String>();