是的，跨域时，option请求不通过

ueditor自动帮我们上传了图片，没有入口方法啊，能不能继承一下CrossOriginFilter，或者过滤一下？

public class CorsFilter implements Filter {

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException,
			ServletException {
		// TODO Auto-generated method stub
		
		HttpServletResponse res = (HttpServletResponse) response;

		res.setContentType("text/html;charset=UTF-8");

		   res.setHeader("Access-Control-Allow-Origin", "*");

		   res.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");

		   res.setHeader("Access-Control-Max-Age", "0");

		   res.setHeader("Access-Control-Allow-Headers", "Origin, No-Cache, X-Requested-With, If-Modified-Since, Pragma, Last-Modified, Cache-Control, Expires, Content-Type, X-E4M-With,userId,token");

		   res.setHeader("Access-Control-Allow-Credentials", "true");

		   res.setHeader("XDomainRequestAllowed","1");

		   chain.doFilter(request, response);
		chain.doFilter(request, response);
	}

	@Override
	public void destroy() {
	}

}

写了自己的过滤器，这样过滤可以实现吗？

这个是提交到它自己的处理类里面去了。。。

单步调试了一下，先进入了 controller.jsp 执行上传后才进入filter