/**
 * @copy right Dossp Company All rights reserved
 * @Title: CORSFilter.java
 * @Date: 2018-07-04 14:21
 * @Package com.dossp.common.filter
 */
package com.dossp.common.filter;

import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @author yufenghui
 * </p>
 * 日期：2018-07-04 14:21
 * </p>
 * 描述：
 *
 */
@WebFilter(filterName = "CORSFilter", urlPatterns = {"/*"})
@Order(value = 1)
@Configuration
public class CORSFilter implements Filter {

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

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {

        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "x-requested-with");
        response.setHeader("Access-Control-Allow-Credentials","true"); //是否支援cookie跨域
        filterChain.doFilter(servletRequest, servletResponse);

    }

    @Override
    public void destroy() {

    }

}