添加注释，优化代码，减少魔法值

src/main/java/com/bao/dating/config/WebConfig.java

@@ -7,6 +7,10 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
+/**
+ * WebMvc配置类
+ * @author KilLze
+ */
 @Configuration
 public class WebConfig implements WebMvcConfigurer {