JavaUtils-CORSFilter.template

package com.sd.packagename.common.util;

/**
 * @Created with Atom
 * @author @author@
 * @time @now@
 * @description
 * 跨域资源共享
 *
 **/
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;


public class CORSFilter implements Filter {
  @Override
  public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
    HttpServletResponse response = (HttpServletResponse) servletResponse;
    HttpServletRequest request = (HttpServletRequest) servletRequest;
    Date now = new Date();
    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); //可以方便地修改日期格式
    String hehe = dateFormat.format(now);
    System.out.println("CORS---拦截" + hehe + request.getMethod());
    //response.setHeader("Access-Control-Allow-Origin","*");
    response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));
    response.setHeader("Access-Control-Allow-Methods", "GET,POST,PUT,DELETE");
    response.setHeader("Access-Control-Max-Age", "2000");
    response.setHeader("Access-Control-Allow-Headers", "Origin,X-Requested-with,Content-Type,Accept");
    response.setHeader("Access-Control-Allow-Credentials", "true");
    filterChain.doFilter(servletRequest, response);
  }

  @Override
  public void init(FilterConfig filterConfig) {}

  @Override
  public void destroy() {}
}