解决cors跨域的filter

Posted 2020-10-28 grey-wolf

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.Ordered;

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

/**
 * desc:
 *
 * @author: 
 * creat_date: 2018/1/4
 * creat_time: 17:33
 **/
@Order(Ordered.LOWEST_PRECEDENCE - 1)
@WebFilter(filterName = "headersCORSFilter", urlPatterns = "/*")
public class HeadersCorsFilter implements Filter, Ordered {
    private static final Logger logger = LoggerFactory.getLogger(HeadersCorsFilter.class);

    private int order = Ordered.LOWEST_PRECEDENCE - 1;

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        // TODO Auto-generated method stub

    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain chain) throws IOException, ServletException {
        HttpServletResponse httpResp = (HttpServletResponse) response;
        httpResp.setHeader("Access-Control-Allow-Methods", "GET, POST, PUT, OPTIONS");
        httpResp.setHeader("Access-Control-Allow-Origin", "*");
        httpResp.setHeader("Access-Control-Allow-Credentials", "true");
        httpResp.setHeader("Access-Control-Max-Age", "3600");
        httpResp.setHeader("Access-Control-Allow-Headers", "Content-Type,X-Requested-With,accept,Origin," +
                "Access-Control-Request-Method,Access-Control-Request-Headers,userID,Authentication,authentication,content-type");

        chain.doFilter(request, response);
    }

    @Override
    public void destroy() {
        // TODO Auto-generated method stub

    }

    @Override
    public int getOrder() {
        return order;
    }
}