From 8d8ae5daa9b228828f48bfe5c1645b8a009c9660 Mon Sep 17 00:00:00 2001 From: Krzysiek Date: Thu, 25 Nov 2021 13:10:58 +0100 Subject: [PATCH 1/3] JAVA-8363: Move etag code to spring-boot-mvc-3 --- .../src/main/java/com/baeldung/mime/Foo.java | 93 +++++++++++++++++++ .../java/com/baeldung/mime/WebConfig.java | 28 ++++++ .../java/com/baeldung/mime/FooLiveTest.java | 7 +- .../com/baeldung/mime/JacksonMarshaller.java | 2 +- .../com/baeldung/mime/XStreamMarshaller.java | 2 +- spring-boot-modules/spring-boot-mvc-3/pom.xml | 8 ++ .../src/main/java/com/baeldung/etag/Foo.java | 3 +- .../java/com/baeldung/etag/FooController.java | 4 +- .../main/java/com/baeldung/etag/FooDao.java | 0 .../etag/SpringBootEtagApplication.java | 0 .../java/com/baeldung/etag/WebConfig.java | 0 .../src/main/resources/WEB-INF/web.xml | 0 .../baeldung/etag/EtagIntegrationTest.java | 20 ++-- 13 files changed, 145 insertions(+), 22 deletions(-) create mode 100644 spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/Foo.java create mode 100644 spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/WebConfig.java rename spring-boot-modules/{spring-boot-mvc-2 => spring-boot-mvc-3}/src/main/java/com/baeldung/etag/Foo.java (99%) rename spring-boot-modules/{spring-boot-mvc-2 => spring-boot-mvc-3}/src/main/java/com/baeldung/etag/FooController.java (100%) rename spring-boot-modules/{spring-boot-mvc-2 => spring-boot-mvc-3}/src/main/java/com/baeldung/etag/FooDao.java (100%) rename spring-boot-modules/{spring-boot-mvc-2 => spring-boot-mvc-3}/src/main/java/com/baeldung/etag/SpringBootEtagApplication.java (100%) rename spring-boot-modules/{spring-boot-mvc-2 => spring-boot-mvc-3}/src/main/java/com/baeldung/etag/WebConfig.java (100%) rename spring-boot-modules/{spring-boot-mvc-2 => spring-boot-mvc-3}/src/main/resources/WEB-INF/web.xml (100%) rename spring-boot-modules/{spring-boot-mvc-2 => spring-boot-mvc-3}/src/test/java/com/baeldung/etag/EtagIntegrationTest.java (99%) diff --git a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/Foo.java b/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/Foo.java new file mode 100644 index 0000000000..a8e379fc79 --- /dev/null +++ b/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/Foo.java @@ -0,0 +1,93 @@ +package com.baeldung.mime; + +import javax.persistence.Column; +import javax.persistence.Entity; +import javax.persistence.GeneratedValue; +import javax.persistence.GenerationType; +import javax.persistence.Id; +import javax.persistence.Version; +import java.io.Serializable; + +@Entity +public class Foo implements Serializable { + + @Id + @GeneratedValue(strategy = GenerationType.AUTO) + private long id; + + @Column(nullable = false) + private String name; + + @Version + private long version; + + public Foo() { + super(); + } + + public Foo(final String name) { + super(); + + this.name = name; + } + + // API + + public long getId() { + return id; + } + + public void setId(final long id) { + this.id = id; + } + + public String getName() { + return name; + } + + public void setName(final String name) { + this.name = name; + } + + public long getVersion() { + return version; + } + + public void setVersion(long version) { + this.version = version; + } + + // + + @Override + public int hashCode() { + final int prime = 31; + int result = 1; + result = prime * result + ((name == null) ? 0 : name.hashCode()); + return result; + } + + @Override + public boolean equals(final Object obj) { + if (this == obj) + return true; + if (obj == null) + return false; + if (getClass() != obj.getClass()) + return false; + final Foo other = (Foo) obj; + if (name == null) { + if (other.name != null) + return false; + } else if (!name.equals(other.name)) + return false; + return true; + } + + @Override + public String toString() { + final StringBuilder builder = new StringBuilder(); + builder.append("Foo [name=").append(name).append("]"); + return builder.toString(); + } +} diff --git a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/WebConfig.java b/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/WebConfig.java new file mode 100644 index 0000000000..2c9680f628 --- /dev/null +++ b/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/WebConfig.java @@ -0,0 +1,28 @@ +package com.baeldung.mime; + +import org.springframework.boot.web.servlet.FilterRegistrationBean; +import org.springframework.context.annotation.Bean; +import org.springframework.context.annotation.Configuration; +import org.springframework.web.filter.ShallowEtagHeaderFilter; + +@Configuration +public class WebConfig { + + // Etags + + // If we're not using Spring Boot we can make use of + // AbstractAnnotationConfigDispatcherServletInitializer#getServletFilters + @Bean + public FilterRegistrationBean shallowEtagHeaderFilter() { + FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean<>( new ShallowEtagHeaderFilter()); + filterRegistrationBean.addUrlPatterns("/foos/*"); + filterRegistrationBean.setName("etagFilter"); + return filterRegistrationBean; + } + + // We can also just declare the filter directly + // @Bean + // public ShallowEtagHeaderFilter shallowEtagHeaderFilter() { + // return new ShallowEtagHeaderFilter(); + // } +} \ No newline at end of file diff --git a/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/FooLiveTest.java b/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/FooLiveTest.java index e65b106ead..f4aa96b53a 100644 --- a/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/FooLiveTest.java +++ b/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/FooLiveTest.java @@ -14,15 +14,12 @@ import org.springframework.context.annotation.ComponentScan; import org.springframework.test.context.ActiveProfiles; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; -import com.baeldung.etag.Foo; -import com.baeldung.etag.WebConfig; - import io.restassured.RestAssured; import io.restassured.response.Response; @RunWith(SpringJUnit4ClassRunner.class) -@SpringBootTest(classes= WebConfig.class, webEnvironment = WebEnvironment.RANDOM_PORT) -@ComponentScan({"com.baeldung.mime", "com.baeldung.etag"}) +@SpringBootTest(classes = WebConfig.class, webEnvironment = WebEnvironment.RANDOM_PORT) +@ComponentScan({"com.baeldung.mime"}) @EnableAutoConfiguration @ActiveProfiles("test") public class FooLiveTest { diff --git a/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/JacksonMarshaller.java b/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/JacksonMarshaller.java index 9dee0ef2cd..c6d14a9427 100644 --- a/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/JacksonMarshaller.java +++ b/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/JacksonMarshaller.java @@ -7,7 +7,7 @@ import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.http.MediaType; -import com.baeldung.etag.Foo; +import com.baeldung.mime.Foo; import com.fasterxml.jackson.core.type.TypeReference; import com.fasterxml.jackson.databind.ObjectMapper; diff --git a/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/XStreamMarshaller.java b/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/XStreamMarshaller.java index 2c67694e83..8a4188ceca 100644 --- a/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/XStreamMarshaller.java +++ b/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/XStreamMarshaller.java @@ -4,7 +4,7 @@ import java.util.List; import org.springframework.http.MediaType; -import com.baeldung.etag.Foo; +import com.baeldung.mime.Foo; import com.thoughtworks.xstream.XStream; public final class XStreamMarshaller implements IMarshaller { diff --git a/spring-boot-modules/spring-boot-mvc-3/pom.xml b/spring-boot-modules/spring-boot-mvc-3/pom.xml index dee217862d..43a492786e 100644 --- a/spring-boot-modules/spring-boot-mvc-3/pom.xml +++ b/spring-boot-modules/spring-boot-mvc-3/pom.xml @@ -27,6 +27,14 @@ org.springframework.boot spring-boot-starter-thymeleaf + + org.springframework.boot + spring-boot-starter-data-jpa + + + com.h2database + h2 + commons-io commons-io diff --git a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/Foo.java b/spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/Foo.java similarity index 99% rename from spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/Foo.java rename to spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/Foo.java index e553ca1b72..9790bca663 100644 --- a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/Foo.java +++ b/spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/Foo.java @@ -1,13 +1,12 @@ package com.baeldung.etag; -import java.io.Serializable; - import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.Version; +import java.io.Serializable; @Entity public class Foo implements Serializable { diff --git a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/FooController.java b/spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/FooController.java similarity index 100% rename from spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/FooController.java rename to spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/FooController.java index 58f366501d..d40a5e7809 100644 --- a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/FooController.java +++ b/spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/FooController.java @@ -1,7 +1,5 @@ package com.baeldung.etag; -import javax.servlet.http.HttpServletResponse; - import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; @@ -16,6 +14,8 @@ import org.springframework.web.bind.annotation.ResponseStatus; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.server.ResponseStatusException; +import javax.servlet.http.HttpServletResponse; + @RestController @RequestMapping(value = "/foos") public class FooController { diff --git a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/FooDao.java b/spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/FooDao.java similarity index 100% rename from spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/FooDao.java rename to spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/FooDao.java diff --git a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/SpringBootEtagApplication.java b/spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/SpringBootEtagApplication.java similarity index 100% rename from spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/SpringBootEtagApplication.java rename to spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/SpringBootEtagApplication.java diff --git a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/WebConfig.java b/spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/WebConfig.java similarity index 100% rename from spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/etag/WebConfig.java rename to spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/etag/WebConfig.java diff --git a/spring-boot-modules/spring-boot-mvc-2/src/main/resources/WEB-INF/web.xml b/spring-boot-modules/spring-boot-mvc-3/src/main/resources/WEB-INF/web.xml similarity index 100% rename from spring-boot-modules/spring-boot-mvc-2/src/main/resources/WEB-INF/web.xml rename to spring-boot-modules/spring-boot-mvc-3/src/main/resources/WEB-INF/web.xml diff --git a/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/etag/EtagIntegrationTest.java b/spring-boot-modules/spring-boot-mvc-3/src/test/java/com/baeldung/etag/EtagIntegrationTest.java similarity index 99% rename from spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/etag/EtagIntegrationTest.java rename to spring-boot-modules/spring-boot-mvc-3/src/test/java/com/baeldung/etag/EtagIntegrationTest.java index 88c5ae1686..97de6d06f1 100644 --- a/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/etag/EtagIntegrationTest.java +++ b/spring-boot-modules/spring-boot-mvc-3/src/test/java/com/baeldung/etag/EtagIntegrationTest.java @@ -1,10 +1,10 @@ package com.baeldung.etag; -import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic; -import static org.assertj.core.api.Assertions.assertThat; -import static org.junit.Assert.assertNotNull; -import static org.junit.Assert.assertTrue; - +import com.fasterxml.jackson.core.JsonProcessingException; +import com.fasterxml.jackson.databind.ObjectMapper; +import io.restassured.RestAssured; +import io.restassured.http.ContentType; +import io.restassured.response.Response; import org.assertj.core.util.Preconditions; import org.junit.Ignore; import org.junit.Test; @@ -18,12 +18,10 @@ import org.springframework.http.HttpHeaders; import org.springframework.http.MediaType; import org.springframework.test.context.junit4.SpringRunner; -import com.fasterxml.jackson.core.JsonProcessingException; -import com.fasterxml.jackson.databind.ObjectMapper; - -import io.restassured.RestAssured; -import io.restassured.http.ContentType; -import io.restassured.response.Response; +import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic; +import static org.assertj.core.api.Assertions.assertThat; +import static org.junit.Assert.assertNotNull; +import static org.junit.Assert.assertTrue; @RunWith(SpringRunner.class) @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT) From 49ffde8b48b9f475173f2ba5dacdb0d23070c6fe Mon Sep 17 00:00:00 2001 From: Krzysiek Date: Thu, 25 Nov 2021 13:25:40 +0100 Subject: [PATCH 2/3] JAVA-8363: Fix FooLiveTest - separate mime from etag code --- .../java/com/baeldung/mime/FooController.java | 36 +++++++++++++++++++ .../main/java/com/baeldung/mime/FooDao.java | 8 +++++ .../java/com/baeldung/mime/WebConfig.java | 28 --------------- .../java/com/baeldung/mime/FooLiveTest.java | 6 ++-- 4 files changed, 47 insertions(+), 31 deletions(-) create mode 100644 spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/FooController.java create mode 100644 spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/FooDao.java delete mode 100644 spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/WebConfig.java diff --git a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/FooController.java b/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/FooController.java new file mode 100644 index 0000000000..d7da9bd849 --- /dev/null +++ b/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/FooController.java @@ -0,0 +1,36 @@ +package com.baeldung.mime; + +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.http.HttpStatus; +import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.DeleteMapping; +import org.springframework.web.bind.annotation.GetMapping; +import org.springframework.web.bind.annotation.PathVariable; +import org.springframework.web.bind.annotation.PostMapping; +import org.springframework.web.bind.annotation.PutMapping; +import org.springframework.web.bind.annotation.RequestBody; +import org.springframework.web.bind.annotation.RequestMapping; +import org.springframework.web.bind.annotation.ResponseStatus; +import org.springframework.web.bind.annotation.RestController; +import org.springframework.web.server.ResponseStatusException; + +import javax.servlet.http.HttpServletResponse; + +@RestController +@RequestMapping(value = "/foos") +public class FooController { + + @Autowired + private FooDao fooDao; + + @GetMapping(value = "/{id}") + public Foo findById(@PathVariable("id") final Long id, final HttpServletResponse response) { + return fooDao.findById(id).orElseThrow(() -> new ResponseStatusException(HttpStatus.NOT_FOUND)); + } + + @PostMapping + @ResponseStatus(HttpStatus.CREATED) + public Foo create(@RequestBody final Foo resource, final HttpServletResponse response) { + return fooDao.save(resource); + } +} \ No newline at end of file diff --git a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/FooDao.java b/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/FooDao.java new file mode 100644 index 0000000000..9fc99e1124 --- /dev/null +++ b/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/FooDao.java @@ -0,0 +1,8 @@ +package com.baeldung.mime; + +import org.springframework.data.repository.CrudRepository; +import org.springframework.stereotype.Repository; + +@Repository +public interface FooDao extends CrudRepository{ +} \ No newline at end of file diff --git a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/WebConfig.java b/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/WebConfig.java deleted file mode 100644 index 2c9680f628..0000000000 --- a/spring-boot-modules/spring-boot-mvc-2/src/main/java/com/baeldung/mime/WebConfig.java +++ /dev/null @@ -1,28 +0,0 @@ -package com.baeldung.mime; - -import org.springframework.boot.web.servlet.FilterRegistrationBean; -import org.springframework.context.annotation.Bean; -import org.springframework.context.annotation.Configuration; -import org.springframework.web.filter.ShallowEtagHeaderFilter; - -@Configuration -public class WebConfig { - - // Etags - - // If we're not using Spring Boot we can make use of - // AbstractAnnotationConfigDispatcherServletInitializer#getServletFilters - @Bean - public FilterRegistrationBean shallowEtagHeaderFilter() { - FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean<>( new ShallowEtagHeaderFilter()); - filterRegistrationBean.addUrlPatterns("/foos/*"); - filterRegistrationBean.setName("etagFilter"); - return filterRegistrationBean; - } - - // We can also just declare the filter directly - // @Bean - // public ShallowEtagHeaderFilter shallowEtagHeaderFilter() { - // return new ShallowEtagHeaderFilter(); - // } -} \ No newline at end of file diff --git a/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/FooLiveTest.java b/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/FooLiveTest.java index f4aa96b53a..86dd4915b4 100644 --- a/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/FooLiveTest.java +++ b/spring-boot-modules/spring-boot-mvc-2/src/test/java/com/baeldung/mime/FooLiveTest.java @@ -18,7 +18,7 @@ import io.restassured.RestAssured; import io.restassured.response.Response; @RunWith(SpringJUnit4ClassRunner.class) -@SpringBootTest(classes = WebConfig.class, webEnvironment = WebEnvironment.RANDOM_PORT) +@SpringBootTest(classes = FooController.class, webEnvironment = WebEnvironment.RANDOM_PORT) @ComponentScan({"com.baeldung.mime"}) @EnableAutoConfiguration @ActiveProfiles("test") @@ -44,12 +44,12 @@ public class FooLiveTest { createAsUri(resource); } - private final String createAsUri(final Foo resource) { + private String createAsUri(final Foo resource) { final Response response = createAsResponse(resource); return getURL() + "/" + response.getBody().as(Foo.class).getId(); } - private final Response createAsResponse(final Foo resource) { + private Response createAsResponse(final Foo resource) { final String resourceAsString = marshaller.encode(resource); return RestAssured.given() From e3ba14139ed71ea0b2639f0287cac938f69cee8f Mon Sep 17 00:00:00 2001 From: Krzysiek Date: Thu, 25 Nov 2021 13:26:46 +0100 Subject: [PATCH 3/3] JAVA-8363: Update README.md files --- spring-boot-modules/spring-boot-mvc-2/README.md | 1 - spring-boot-modules/spring-boot-mvc-3/README.md | 1 + 2 files changed, 1 insertion(+), 1 deletion(-) diff --git a/spring-boot-modules/spring-boot-mvc-2/README.md b/spring-boot-modules/spring-boot-mvc-2/README.md index f9becb721f..0d0e05daf0 100644 --- a/spring-boot-modules/spring-boot-mvc-2/README.md +++ b/spring-boot-modules/spring-boot-mvc-2/README.md @@ -7,7 +7,6 @@ This module contains articles about Spring Web MVC in Spring Boot projects. - [Functional Controllers in Spring MVC](https://www.baeldung.com/spring-mvc-functional-controllers) - [Specify an Array of Strings as Body Parameters in Swagger](https://www.baeldung.com/swagger-body-array-of-strings) - [Swagger @ApiParam vs @ApiModelProperty](https://www.baeldung.com/swagger-apiparam-vs-apimodelproperty) -- [ETags for REST with Spring](https://www.baeldung.com/etags-for-rest-with-spring) - [Testing REST with multiple MIME types](https://www.baeldung.com/testing-rest-api-with-multiple-media-types) - [Testing Web APIs with Postman Collections](https://www.baeldung.com/postman-testing-collections) - [Spring Boot Consuming and Producing JSON](https://www.baeldung.com/spring-boot-json) diff --git a/spring-boot-modules/spring-boot-mvc-3/README.md b/spring-boot-modules/spring-boot-mvc-3/README.md index f9c6989b3c..fa24ac11ed 100644 --- a/spring-boot-modules/spring-boot-mvc-3/README.md +++ b/spring-boot-modules/spring-boot-mvc-3/README.md @@ -10,4 +10,5 @@ This module contains articles about Spring Web MVC in Spring Boot projects. - [Differences in @Valid and @Validated Annotations in Spring](https://www.baeldung.com/spring-valid-vs-validated) - [CharacterEncodingFilter In SpringBoot](https://www.baeldung.com/spring-boot-characterencodingfilter) - [HandlerInterceptors vs. Filters in Spring MVC](https://www.baeldung.com/spring-mvc-handlerinterceptor-vs-filter) +- [ETags for REST with Spring](https://www.baeldung.com/etags-for-rest-with-spring) - More articles: [[prev -->]](/spring-boot-modules/spring-boot-mvc-2)