跨域过滤器

佚名 7年前 (2019-04-22) 随笔 993人围观抢沙发百度已收录

package com.osplat.config;


import com.osplat.util.Log;
import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;


@Component
public class CorsFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        Log.info("跨域过滤初始化......");
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        Log.info("跨域过滤进行中......");
        //允许跨域
        response.setHeader("Access-Control-Allow-Origin", "*");

        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        // 这个allow-headers要配为*，这样才能允许所有的请求头
        response.setHeader("Access-Control-Allow-Headers", "*");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        filterChain.doFilter(servletRequest, servletResponse);
    }

    @Override
    public void destroy() {
    }


}