переделала конфиги

backend/src/main/java/com/example/backend/core/configurations/Constants.java

@@ -1,9 +1,23 @@
 package com.example.backend.core.configurations;
 
 public class Constants {
+
     public static final String API_URL = "/api";
+
     public static final String SEQUENCE_NAME = "hibernate_sequence";
 
+    public static final int DEFUALT_PAGE_SIZE = 5;
+
+    public static final String REDIRECT_VIEW = "redirect:";
+
+    public static final String ADMIN_PREFIX = "/admin";
+
+    public static final String LOGIN_URL = "/login";
+
+    public static final String LOGOUT_URL = "/logout";
+
+    public static final String DEFAULT_PASSWORD = "123456";
+
     private Constants() {
     }
 }

backend/src/main/java/com/example/backend/core/configurations/MapperConfiguration.java

@@ -1,13 +1,23 @@
 package com.example.backend.core.configurations;
 
 import org.modelmapper.ModelMapper;
+import org.modelmapper.PropertyMap;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import com.example.backend.core.model.BaseEntity;
+
 @Configuration
 public class MapperConfiguration {
     @Bean
     ModelMapper modelMapper() {
-        return new ModelMapper();
+        final ModelMapper mapper = new ModelMapper();
+        mapper.addMappings(new PropertyMap<Object, BaseEntity>() {
+            @Override
+            protected void configure() {
+                skip(destination.getId());
+            }
+        });
+        return mapper;
     }
 }

backend/src/main/java/com/example/backend/core/configurations/WebConfig.java

@@ -1,16 +0,0 @@
-package com.example.backend.core.configurations;
-
-import org.springframework.context.annotation.Configuration;
-import org.springframework.lang.NonNull;
-import org.springframework.web.servlet.config.annotation.CorsRegistry;
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
-
-@Configuration
-public class WebConfig implements WebMvcConfigurer{
-    @Override
-    public void addCorsMappings(@NonNull CorsRegistry registry){
-        registry.addMapping("/**")
-            .allowedMethods("GET", "POST", "PUT", "DELETE");
-
-    }
-}

backend/src/main/java/com/example/backend/core/configurations/WebConfiguration.java

@@ -0,0 +1,13 @@
+package com.example.backend.core.configurations;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class WebConfiguration implements WebMvcConfigurer {
+    @Override
+    public void addViewControllers(ViewControllerRegistry registry) {
+        registry.addViewController("/login").setViewName("login");
+    }
+}