~~~ package com.nobb.filter; import org.springframework.stereotype.Component; import javax.servlet.*; import javax.servlet.http.HttpServletResponse; import java.io.IOException; //filter跨域解决方案 @Component public class SimpleCORSFilter implements Filter { public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException { HttpServletResponse response = (HttpServletResponse) res; response.setHeader("Access-Control-Allow-Origin", "*"); response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, HEAD"); response.setHeader("Access-Control-Max-Age", "3600"); response.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With"); chain.doFilter(req, res); } public void init(FilterConfig filterConfig) { System.out.println("aa"); } public void destroy() {} } ~~~