id 보이도록 변경

src/main/java/com/example/template/config/RepositoryRestConfig.java

@@ -0,0 +1,35 @@
+package com.example.template.config;
+
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.type.filter.RegexPatternTypeFilter;
+import org.springframework.data.rest.core.config.RepositoryRestConfiguration;
+import org.springframework.data.rest.webmvc.config.RepositoryRestConfigurer;
+
+import java.util.Set;
+import java.util.regex.Pattern;
+
+@Configuration
+public class RepositoryRestConfig implements RepositoryRestConfigurer {
+
+    @Override
+    public void configureRepositoryRestConfiguration(RepositoryRestConfiguration config) {
+
+        final ClassPathScanningCandidateComponentProvider provider = new ClassPathScanningCandidateComponentProvider(false);
+        provider.addIncludeFilter(new RegexPatternTypeFilter(Pattern.compile(".*")));
+
+        final Set<BeanDefinition> beans = provider.findCandidateComponents("com.example");
+
+        for (BeanDefinition bean : beans) {
+            Class<?> idExposedClasses = null;
+            try {
+                idExposedClasses = Class.forName(bean.getBeanClassName());
+                config.exposeIdsFor(Class.forName(idExposedClasses.getName()));
+            } catch (ClassNotFoundException e) {
+                // Can't throw ClassNotFoundException due to the method signature. Need to cast it
+                throw new RuntimeException("Failed to expose `id` field due to", e);
+            }
+        }
+    }
+}