摘要：
controller请求参数添加注解 @Validated({AddGroup.class}) /** * 集中处理所有异常 */@Slf4j//@ResponseBody//@ControllerAdvice(basePackages = "com.atguigu.gulimall.product 阅读全文
摘要：
public class R extends HashMap<String, Object> { private static final long serialVersionUID = 1L; public R() { put("code", 0); put("msg", "success"); 阅读全文