在java服务端设置允许跨域请求

//写一个filter对response进行过滤
public class CrossFilter implements Filter{

	@Override
	public void destroy() {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
			throws IOException, ServletException {
		HttpServletResponse response = (HttpServletResponse) res;
	    response.setHeader("Access-Control-Allow-Origin", "*");  
	    response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");  
	    response.setHeader("Access-Control-Max-Age", "3600");  
	    response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With,x-requested-with, Content-Type, Accept, client_id, uuid, Authorization");
	  //  response.setHeader("Access-Control-Allow-Headers", "x-requested-with"); 
		chain.doFilter(req, res); 
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
		
	}

}