BAEL-6125 Migrate Application from Spring Boot 2 to Spring Boot 3

spring-boot-modules/spring-boot-3/src/main/java/com/baeldung/sample/boundary/ServerConfiguration.java

@@ -0,0 +1,21 @@
+package com.baeldung.sample.boundary;
+
+import org.apache.catalina.connector.Connector;
+import org.springframework.boot.web.embedded.tomcat.TomcatConnectorCustomizer;
+import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
+import org.springframework.boot.web.server.WebServerFactoryCustomizer;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class ServerConfiguration implements WebServerFactoryCustomizer<TomcatServletWebServerFactory> {
+
+    @Override
+    public void customize(TomcatServletWebServerFactory factory) {
+        factory.addConnectorCustomizers(new TomcatConnectorCustomizer() {
+            @Override
+            public void customize(Connector connector) {
+                connector.setProperty("maxHttpResponseHeaderSize", "100000");
+            }
+        });
+    }
+}

spring-boot-modules/spring-boot-3/src/main/java/com/baeldung/sample/boundary/TodosController.java

@@ -18,6 +18,7 @@ import org.springframework.web.bind.annotation.RestController;
 
 import java.net.URI;
 import java.util.Collection;
+import java.util.List;
 import java.util.stream.Collectors;
 
 import static org.springframework.hateoas.server.mvc.WebMvcLinkBuilder.linkTo;
@@ -35,6 +36,14 @@ public class TodosController {
     // Mapping zwischen den Schichten
     private final TodoDtoMapper mapper;
 
+
+    @GetMapping(value = {"/name"},produces = DEFAULT_MEDIA_TYPE)
+    public List<String> findAllName(){
+        return List.of("Hello", "World");
+
+    }
+
+
     @GetMapping(produces = DEFAULT_MEDIA_TYPE)
     public Collection<TodoResponseDto> findAll() {
         return service.findAll().stream()
@@ -80,4 +89,5 @@ public class TodosController {
         service.delete(id);
     }
 
+
 }

spring-boot-modules/spring-boot-3/src/main/java/com/baeldung/sample/boundary/WebConfiguration.java

@@ -0,0 +1,13 @@
+package com.baeldung.sample.boundary;
+
+import org.springframework.web.servlet.config.annotation.PathMatchConfigurer;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+public class WebConfiguration implements WebMvcConfigurer {
+
+    @Override
+    public void configurePathMatch(PathMatchConfigurer configurer) {
+        configurer.setUseTrailingSlashMatch(true);
+    }
+
+}

spring-boot-modules/spring-boot-3/src/test/java/com/baeldung/sample/boundary/TodosControllerApiIntegrationTest.java

@@ -215,4 +215,18 @@ class TodosControllerApiIntegrationTest {
           .andExpect(status().isNotFound());
     }
 
+    @Test
+    void testGetSlashMatchingNotExisting() throws Exception {
+        mvc
+          .perform(get(BASEURL + "/name/").contentType(DEFAULT_MEDIA_TYPE))
+          .andExpect(status().isNotFound());
+    }
+
+    @Test
+    void testGetNameExists() throws Exception {
+        mvc
+          .perform(get(BASEURL + "/name").contentType(DEFAULT_MEDIA_TYPE))
+          .andExpect(status().isOk());
+    }
+
 }