jquery ajax 文件上传的插件
前端用例
function imageUpload(){
$.ajaxFileUpload({
url : '/BusinessTrip/upload', //用于文件上传的服务器端请求地址
fileElementId : 'image_face', //文件上传空间的id属性 <input type="file" id="file" name="file" />
type : 'post',
dataType : 'text', //返回值类型 一般设置为json
success : function(data, status) //服务器成功响应处理函数
{
alert("头像上传成功");
},
error : function(data, status, e)//服务器响应失败处理函数
{
alert("图片上传失败");
}
});
}
服务器端用例
@Controller
public class UploadController {
@Resource
public UserClientService userService;
@RequestMapping(value = "upload", method = RequestMethod.POST)
public @ResponseBody
String upload(HttpServletRequest request,
HttpServletResponse response, ModelMap model,HttpSession session) throws IOException {
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
MultipartFile mFile = multipartRequest.getFile("file");
String path = request.getSession().getServletContext().getRealPath("/resources/upload");
String filename = mFile.getOriginalFilename();
InputStream inputStream = mFile.getInputStream();
byte[] b = new byte[1048576];
int length = inputStream.read(b);
Date date = new Date();
SimpleDateFormat F = new SimpleDateFormat("yyyyMMddHHmmss");
String prefix=filename.substring(filename.lastIndexOf("."));
filename = "123" + F.format(date) + prefix;
String url =path +"/"+ filename;
System.out.println(url);
FileOutputStream outputStream = new FileOutputStream(url);
outputStream.write(b, 0, length);
inputStream.close();
outputStream.close();
return "success";
}
}