package cn.ac.iscas.pebble.ufe.tools;import java.io.IOException;import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.ServletException;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import javax.servlet.http.HttpServletResponse;import org.springframework.stereotype.Component;@Componentpublic class SimpleCORSFilter implements Filter {    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", "x-requested-with");        chain.doFilter(req, res);    }    public void init(FilterConfig filterConfig) {}    public void destroy() {}}

<filter>        <filter-name>cors</filter-name>        <filter-class>cn.ac.iscas.pebble.ufe.tools.SimpleCORSFilter</filter-class>    </filter>        <filter-mapping>        <filter-name>cors</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>