springboot解决跨域问题

直接写个Java类解决

package com.wj2y.testapi.config;
    
    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.HttpServletResponse;
    import org.springframework.stereotype.Component;
    
    @Component
    public class MyCorsFilter 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");
            response.setHeader("Access-Control-Max-Age", "3600");
            response.setHeader("Access-Control-Allow-Headers", "x-requested-with,content-type");
            chain.doFilter(req, res);
    
        }
    
        public void init(FilterConfig filterConfig) {}
        public void destroy() {}
    }