快速解决SpringBoot跨域问题

新建
[CorsFilter.java]类。

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Component;

@Component  
public class CorsFilter implements Filter {  
  
    final static org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(CorsFilter.class);  
  
  
  
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {  
        HttpServletResponse response = (HttpServletResponse) res;  
  
        HttpServletRequest reqs = (HttpServletRequest) req;  
  
        response.setHeader("Access-Control-Allow-Origin",reqs.getHeader("Origin"));  
        response.setHeader("Access-Control-Allow-Credentials", "true");  
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");  
        response.setHeader("Access-Control-Max-Age", "3600");  
        response.setHeader("Access-Control-Allow-Headers", "x-requested-with");  
        chain.doFilter(req, res);  
    }  
    public void init(FilterConfig filterConfig) {}  
    public void destroy() {}  

}