20分钟学会网络请求的一切 前端新手遇到问题最多的技能 AJAX Axios F

跨域问题可以在后端项目中使用过滤器解决
@Component
public class CorsFilter implements Filter {
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
HttpServletResponse httpResponse = (HttpServletResponse) response;
httpResponse.setHeader("Access-Control-Allow-Origin", "*");
httpResponse.setHeader("Access-Control-Allow-Methods", "*");
httpResponse.setHeader("Access-Control-Allow-Headers", "*");
httpResponse.setHeader("Access-Control-Allow-Credentials", "true");
chain.doFilter(request, response);
}
}
@Configuration
public class FilterConfig {
@Bean
public FilterRegistrationBean<CorsFilter> corsFilterRegistrationBean() {
FilterRegistrationBean<CorsFilter> registrationBean = new FilterRegistrationBean<>();
registrationBean.setFilter(new CorsFilter());
registrationBean.addUrlPatterns("/*");
registrationBean.setOrder(Ordered.HIGHEST_PRECEDENCE);
return registrationBean;
}
}