现在都是前后端分离..因为有些时候就会存在跨域问题...跨域可以从前端解决,也可以后端,
贴上后端的代码..
import org.springframework.cache.annotation.EnableCaching; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.CorsRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; /** * 跨域配置 * @author * */ @Configuration @EnableCaching public class CorsConfig extends WebMvcConfigurerAdapter{ @Override public void addCorsMappings(CorsRegistry registry) { registry.addMapping("/**") .allowedOrigins("*") .allowCredentials(true) .allowedMethods("GET", "POST") .maxAge(3600); } }