Java配置过滤器，并解决跨域的问题

package ;

import ;

import ;

import ;

import ;

import ;

import ;

import ;

import ;

public class SystemInterceptor implements Filter{

@Override

public void init(FilterConfig filterConfig) throws ServletException {

// TODO Auto-generated method stub

}

@Override

public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain)

throws IOException, ServletException {

HttpServletResponse response = (HttpServletResponse) servletResponse;

("Access-Control-Allow-Origin", "*"); // 这里最好明确的写允许的域名

("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, PUT");

("Access-Control-Max-Age", "3600");

("Access-Control-Allow-Headers", "Content-Type,Access-Token,Authorization,ybg");

(servletRequest, servletResponse);

("filter==========================");

}

@Override

public void destroy() {

// TODO Auto-generated method stub

}

}