解决The value of the ‘Access-Control-Allow-Origin‘ header in the response must not be the wildcard ‘*‘
package com.cxstar.dao.data.config;
import org.springframework.stereotype.Component;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* 单机测试时如果有跨域问题，就用这个Filter解决，把@Component前的注释移除即可
* 如果是在微服务中，跨域问题在网关层进行了解决，服务没必要再次进行处理，把@Component注释掉即可
*/
@Component
public class CORSFilter implements Filter {
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
HttpServletResponse res = (HttpServletResponse) response;
HttpServletRequest req = (HttpServletRequest) request;
res.addHeader("Access-Control-Allow-Credentials", "true");
res.addHeader("Access-Control-Allow-Origin", req.getHeader("origin"));
res.addHeader("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT");
res.addHeader("Access-Control-Allow-Headers", "Content-Type,X-CAF-Authorization-Token,sessionToken,X-TOKEN,customercoderoute,authorization,conntectionid,Cookie");
if (((HttpServletRequest) request).getMethod().equals("OPTIONS")) {
response.getWriter().println("ok");
return;
}
chain.doFilter(request, response);
}
@Override
public void destroy() {
}
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
}