Merge branch 'master' into JAVA-3524

2020-12-30 19:10:19 +05:30
parent 594e7b0f81 078169109d
commit 22446e6df0
138 changed files with 611 additions and 218 deletions
@@ -23,7 +23,10 @@
        <module>spring-mvc-forms-thymeleaf</module>
        <module>spring-mvc-java</module>
        <module>spring-mvc-java-2</module>
+        <module>spring-mvc-webflow</module>
+        <module>spring-rest-angular</module>
        <module>spring-rest-http</module>
+        <module>spring-resttemplate-2</module>
        <module>spring-thymeleaf</module>
        <module>spring-thymeleaf-2</module>
        <module>spring-thymeleaf-3</module>
@@ -78,12 +78,6 @@
            <scope>test</scope>
        </dependency>

-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-context</artifactId>
-            <version>${springcloud.version}</version>
-        </dependency>
-
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
@@ -149,7 +143,6 @@
        <jpa.version>2.2</jpa.version>
        <guava.version>18.0</guava.version>
        <subethasmtp.version>3.1.7</subethasmtp.version>
-        <springcloud.version>2.0.2.RELEASE</springcloud.version>
        <httpclient.version>4.5.8</httpclient.version>
    </properties>

@@ -5,3 +5,6 @@ spring.mvc.pathmatch.use-suffix-pattern=true
 #spring.mvc.contentnegotiation.favor-path-extension=true
 #spring.mvc.contentnegotiation.favor-parameter=true
 #spring.mvc.contentnegotiation.parameter-name=mediaType
+
+# https://github.com/spring-projects/spring-boot/issues/24207
+spring.main.allow-bean-definition-overriding=true
@@ -0,0 +1,7 @@
+## Spring MVC WebFlow
+
+This module contains articles about Spring MVC Web Flow
+
+### Relevant Articles: 
+
+- [Guide to Spring Web Flow](https://www.baeldung.com/spring-web-flow)
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-mvc-webflow</artifactId>
+    <version>0.1-SNAPSHOT</version>
+    <name>spring-mvc-webflow</name>
+    <packaging>war</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <dependencies>
+
+        <!-- Spring -->
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-web</artifactId>
+            <version>${org.springframework.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-webmvc</artifactId>
+            <version>${org.springframework.version}</version>
+        </dependency>
+
+        <!-- Spring Web Flow -->
+        <dependency>
+            <groupId>org.springframework.webflow</groupId>
+            <artifactId>spring-webflow</artifactId>
+            <version>${spring.webflow}</version>
+        </dependency>
+
+        <!-- web -->
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+            <version>${javax.servlet-api.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>jstl</artifactId>
+            <version>${jstl.version}</version>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
+            <groupId>org.slf4j</groupId>
+            <artifactId>log4j-over-slf4j</artifactId>
+            <version>${org.slf4j.version}</version>
+        </dependency>
+
+        <!-- Test -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>${spring-boot-starter-test.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+        <finalName>spring-mvc-webflow</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.tomee.maven</groupId>
+                <artifactId>tomee-maven-plugin</artifactId>
+                <version>8.0.1</version>
+                <configuration>
+                    <tomeeHttpPort>8080</tomeeHttpPort>
+                    <context>spring-mvc-webflow</context>
+                    <reloadOnUpdate>true</reloadOnUpdate>
+                    <tomeeClassifier>plume</tomeeClassifier>
+                    <synchronization>
+                        <extensions>
+                            <extension>.class</extension>
+                        </extensions>
+                    </synchronization>
+                    <args>-Xmx2048m -XX:PermSize=256m -Dtomee.serialization.class.blacklist=- -Dtomee.serialization.class.whitelist=*</args>
+                    <removeDefaultWebapps>true</removeDefaultWebapps>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-war-plugin</artifactId>
+                <version>${maven-war-plugin.version}</version>
+                <configuration>
+                    <failOnMissingWebXml>false</failOnMissingWebXml>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <!-- Spring -->
+        <org.springframework.version>5.0.1.RELEASE</org.springframework.version>
+
+        <!-- Spring Web Flow -->
+        <spring.webflow>2.5.0.RELEASE</spring.webflow>
+
+        <httpcore.version>4.4.5</httpcore.version>
+        <httpclient.version>4.5.2</httpclient.version>
+
+        <!-- Maven plugins -->
+        <maven-resources-plugin.version>2.7</maven-resources-plugin.version>
+        <cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>
+        <spring-boot-starter-test.version>1.5.10.RELEASE</spring-boot-starter-test.version>
+    </properties>
+
+</project>
@@ -0,0 +1,35 @@
+package com.baeldung.servlet;
+
+import javax.servlet.ServletRegistration.Dynamic;
+
+import com.baeldung.spring.WebFlowConfig;
+import com.baeldung.spring.WebMvcConfig;
+import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
+
+public class WebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
+
+    public WebInitializer() {
+        super();
+    }
+
+    // API
+    protected Class<?>[] getRootConfigClasses() {
+        return new Class<?>[] { WebMvcConfig.class, WebFlowConfig.class };
+    }
+
+    @Override
+    protected Class<?>[] getServletConfigClasses() {
+        return null;
+    }
+
+    @Override
+    protected String[] getServletMappings() {
+        return new String[] { "/" };
+    }
+
+    @Override
+    protected void customizeRegistration(final Dynamic registration) {
+        super.customizeRegistration(registration);
+    }
+
+}
@@ -0,0 +1,43 @@
+package com.baeldung.spring;
+
+import java.util.Collections;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.webflow.config.AbstractFlowConfiguration;
+import org.springframework.webflow.definition.registry.FlowDefinitionRegistry;
+import org.springframework.webflow.engine.builder.support.FlowBuilderServices;
+import org.springframework.webflow.executor.FlowExecutor;
+import org.springframework.webflow.mvc.builder.MvcViewFactoryCreator;
+
+@Configuration
+public class WebFlowConfig extends AbstractFlowConfiguration {
+
+    @Autowired
+    private WebMvcConfig webMvcConfig;
+
+    @Bean
+    public FlowDefinitionRegistry flowRegistry() {
+        return getFlowDefinitionRegistryBuilder(flowBuilderServices()).addFlowLocation("/WEB-INF/flows/activation-flow.xml", "activationFlow").build();
+    }
+
+    @Bean
+    public FlowExecutor flowExecutor() {
+        return getFlowExecutorBuilder(flowRegistry()).build();
+    }
+
+    @Bean
+    public FlowBuilderServices flowBuilderServices() {
+        return getFlowBuilderServicesBuilder().setViewFactoryCreator(mvcViewFactoryCreator()).setDevelopmentMode(true).build();
+    }
+
+    @Bean
+    public MvcViewFactoryCreator mvcViewFactoryCreator() {
+        MvcViewFactoryCreator factoryCreator = new MvcViewFactoryCreator();
+        factoryCreator.setViewResolvers(Collections.singletonList(this.webMvcConfig.viewResolver()));
+        factoryCreator.setUseSpringBeanBinding(true);
+        return factoryCreator;
+    }
+
+}
@@ -0,0 +1,51 @@
+package com.baeldung.spring;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+import org.springframework.web.servlet.view.InternalResourceViewResolver;
+import org.springframework.web.servlet.view.JstlView;
+import org.springframework.webflow.mvc.servlet.FlowHandlerAdapter;
+import org.springframework.webflow.mvc.servlet.FlowHandlerMapping;
+
+@EnableWebMvc
+@Configuration
+public class WebMvcConfig implements WebMvcConfigurer {
+
+    @Autowired
+    private WebFlowConfig webFlowConfig;
+
+    @Override
+    public void addResourceHandlers(ResourceHandlerRegistry registry) {
+        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
+    }
+
+    @Bean
+    public InternalResourceViewResolver viewResolver() {
+        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
+        viewResolver.setViewClass(JstlView.class);
+        viewResolver.setPrefix("/WEB-INF/view/");
+        viewResolver.setSuffix(".jsp");
+        return viewResolver;
+    }
+
+    @Bean
+    public FlowHandlerMapping flowHandlerMapping() {
+        FlowHandlerMapping handlerMapping = new FlowHandlerMapping();
+        handlerMapping.setOrder(-1);
+        handlerMapping.setFlowRegistry(this.webFlowConfig.flowRegistry());
+        return handlerMapping;
+    }
+
+    @Bean
+    public FlowHandlerAdapter flowHandlerAdapter() {
+        FlowHandlerAdapter handlerAdapter = new FlowHandlerAdapter();
+        handlerAdapter.setFlowExecutor(this.webFlowConfig.flowExecutor());
+        handlerAdapter.setSaveOutputToFlashScopeOnRedirect(true);
+        return handlerAdapter;
+    }
+
+}
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:flow="http://www.springframework.org/schema/webflow-config"
+       xsi:schemaLocation="http://www.springframework.org/schema/webflow-config
+http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.4.xsd
+http://www.springframework.org/schema/beans
+http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
+
+
+    <bean class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping">
+        <property name="flowRegistry" ref="activationFlowRegistry"/>
+    </bean>
+
+    <flow:flow-builder-services id="flowBuilderServices"
+                                view-factory-creator="mvcViewFactoryCreator"/>
+
+    <bean id="mvcViewFactoryCreator" class="org.springframework.webflow.mvc.builder.MvcViewFactoryCreator">
+        <property name="viewResolvers" ref="jspViewResolver"/>
+    </bean>
+
+    <flow:flow-registry id="activationFlowRegistry" flow-builder-services="flowBuilderServices">
+        <flow:flow-location id="activationFlow" path="/WEB-INF/flows/activation-flow.xml"/>
+    </flow:flow-registry>
+
+    <bean class="org.springframework.webflow.mvc.servlet.FlowHandlerAdapter">
+        <property name="flowExecutor" ref="activationFlowExecutor"/>
+    </bean>
+    <flow:flow-executor id="activationFlowExecutor" flow-registry="activationFlowRegistry"/>
+
+
+</beans>
+		
@@ -0,0 +1,20 @@
+<configuration>
+
+	<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+		<encoder>
+			<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+			</pattern>
+		</encoder>
+	</appender>
+
+	<logger name="org.springframework" level="WARN" />
+	<logger name="org.springframework.transaction" level="WARN" />
+
+	<!-- in order to debug some marshalling issues, this needs to be TRACE -->
+	<logger name="org.springframework.web.servlet.mvc" level="WARN" />
+
+	<root level="INFO">
+		<appender-ref ref="STDOUT" />
+	</root>
+
+</configuration>
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<flow xmlns="http://www.springframework.org/schema/webflow"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://www.springframework.org/schema/webflow
+                          http://www.springframework.org/schema/webflow/spring-webflow.xsd">
+
+
+    <view-state id="activation">
+        <transition on="activate" to="success"/>
+        <transition on="cancel" to="failure"/>
+    </view-state>
+
+    <view-state id="success" />
+
+    <view-state id="failure" />
+
+</flow>
@@ -0,0 +1,23 @@
+<html>
+<body>
+<h2>Hello World!</h2>
+<%--<a href="${flowExecutionUrl}">Start</a>--%>
+<%--<input type="submit" name="_eventId_success" value="Proceed" />--%>
+<%--<input type="submit" name="_eventId_failure" value="Cancel" />--%>
+
+<form method="post" action="${flowExecutionUrl}">
+
+    <input type="hidden" name="_eventId" value="activate">
+    <input type="submit" value="Proceed" />
+
+</form>
+
+<form method="post" action="${flowExecutionUrl}">
+
+    <input type="hidden" name="_eventId" value="cancel">
+    <input type="submit" value="Cancel" />
+
+</form>
+
+</body>
+</html>
@@ -0,0 +1,5 @@
+<html>
+<body>
+<h2>Activation Failed</h2>
+</body>
+</html>
@@ -0,0 +1,7 @@
+<html>
+<head></head>
+
+<body>
+	<h1>This is the body of the sample view</h1>
+</body>
+</html>
@@ -0,0 +1,5 @@
+<html>
+<body>
+<h2>Activation Successful!</h2>
+</body>
+</html>
@@ -0,0 +1,19 @@
+package com.baeldung;
+
+import com.baeldung.spring.WebFlowConfig;
+import com.baeldung.spring.WebMvcConfig;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.web.WebAppConfiguration;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = {WebFlowConfig.class, WebMvcConfig.class})
+@WebAppConfiguration
+public class SpringContextTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}
@@ -0,0 +1,7 @@
+## Spring REST Angular
+
+This module contains articles about REST APIs with Spring and Angular
+
+### Relevant Articles:
+
+- [Pagination with Spring REST and AngularJS table](https://www.baeldung.com/pagination-with-a-spring-rest-api-and-an-angularjs-table)
@@ -0,0 +1,80 @@
+<?xml version="1.0"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-rest-angular</artifactId>
+    <version>1.0</version>
+    <name>spring-rest-angular</name>
+    <packaging>war</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-boot-2</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-tomcat</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.data</groupId>
+            <artifactId>spring-data-commons</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.hsqldb</groupId>
+            <artifactId>hsqldb</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>${guava.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.rest-assured</groupId>
+            <artifactId>spring-mock-mvc</artifactId>
+            <version>${rest-assured.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>spring-rest-angular</finalName>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-war-plugin</artifactId>
+                <configuration>
+                    <failOnMissingWebXml>false</failOnMissingWebXml>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <guava.version>19.0</guava.version>
+        <start-class>com.baeldung.web.main.Application</start-class>
+    </properties>
+
+</project>
@@ -0,0 +1,9 @@
+package com.baeldung.web.dao;
+
+import com.baeldung.web.entity.Student;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface StudentRepository extends JpaRepository<Student, Long> 
+{
+
+}
@@ -0,0 +1,69 @@
+package com.baeldung.web.entity;
+
+import java.io.Serializable;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+@Entity
+public class Student implements Serializable {
+
+    /**
+     * 
+     */
+    private static final long serialVersionUID = 1L;
+
+    public Student() {
+    }
+
+    public Student(long id, String name, String gender, Integer age) {
+        super();
+        this.id = id;
+        this.name = name;
+        this.gender = gender;
+        this.age = age;
+    }
+
+    @Id
+    private long id;
+    @Column(nullable = false)
+    private String name;
+    @Column(nullable = false)
+    private String gender;
+    @Column(nullable = false)
+    private Integer age;
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getGender() {
+        return gender;
+    }
+
+    public void setGender(String gender) {
+        this.gender = gender;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+
+}
@@ -0,0 +1,26 @@
+package com.baeldung.web.exception;
+
+public class MyResourceNotFoundException extends RuntimeException {
+
+    /**
+     * 
+     */
+    private static final long serialVersionUID = 4088649120307193208L;
+
+    public MyResourceNotFoundException() {
+        super();
+    }
+
+    public MyResourceNotFoundException(final String message, final Throwable cause) {
+        super(message, cause);
+    }
+
+    public MyResourceNotFoundException(final String message) {
+        super(message);
+    }
+
+    public MyResourceNotFoundException(final Throwable cause) {
+        super(cause);
+    }
+
+}
@@ -0,0 +1,25 @@
+package com.baeldung.web.main;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Import;
+import org.springframework.web.filter.ShallowEtagHeaderFilter;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@SpringBootApplication
+@EnableAutoConfiguration
+@Import(PersistenceConfig.class)
+public class Application implements WebMvcConfigurer {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+    @Bean
+    public ShallowEtagHeaderFilter shallowEtagHeaderFilter() {
+        return new ShallowEtagHeaderFilter();
+    }
+
+}
@@ -0,0 +1,33 @@
+package com.baeldung.web.main;
+
+import javax.sql.DataSource;
+
+import org.springframework.boot.autoconfigure.domain.EntityScan;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabase;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
+
+@EnableJpaRepositories("com.baeldung.web.dao")
+@ComponentScan(basePackages = { "com.baeldung.web" })
+@EntityScan("com.baeldung.web.entity")
+@Configuration
+public class PersistenceConfig {
+
+    @Bean
+    public JdbcTemplate getJdbcTemplate() {
+        return new JdbcTemplate(dataSource());
+    }
+
+    @Bean
+    public DataSource dataSource() {
+        EmbeddedDatabaseBuilder builder = new EmbeddedDatabaseBuilder();
+        EmbeddedDatabase db = builder.setType(EmbeddedDatabaseType.HSQL).build();
+        return db;
+    }
+
+}
@@ -0,0 +1,29 @@
+package com.baeldung.web.rest;
+
+import com.baeldung.web.entity.Student;
+import com.baeldung.web.exception.MyResourceNotFoundException;
+import com.baeldung.web.service.StudentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class StudentDirectoryRestController {
+
+    @Autowired
+    private StudentService service;
+
+    @RequestMapping(value = "/student/get", params = { "page", "size" }, method = RequestMethod.GET, produces = "application/json")
+    public Page<Student> findPaginated(@RequestParam("page") int page, @RequestParam("size") int size) {
+
+        Page<Student> resultPage = service.findPaginated(page, size);
+        if (page > resultPage.getTotalPages()) {
+            throw new MyResourceNotFoundException();
+        }
+        return resultPage;
+    }
+
+}
@@ -0,0 +1,9 @@
+package com.baeldung.web.service;
+
+import org.springframework.data.domain.Page;
+
+public interface IOperations<T> {
+
+    public Page<T> findPaginated(final int page, final int size);
+
+}
@@ -0,0 +1,7 @@
+package com.baeldung.web.service;
+
+import com.baeldung.web.entity.Student;
+
+public interface StudentService extends IOperations<Student> {
+
+}
@@ -0,0 +1,21 @@
+package com.baeldung.web.service;
+
+import com.baeldung.web.dao.StudentRepository;
+import com.baeldung.web.entity.Student;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.stereotype.Service;
+
+@Service
+public class StudentServiceImpl implements StudentService {
+
+    @Autowired
+    private StudentRepository dao;
+
+    @Override
+    public Page<Student> findPaginated(int page, int size) {
+        return dao.findAll(PageRequest.of(page, size));
+    }
+
+}
@@ -0,0 +1,5 @@
+server.servlet.contextPath=/
+spring.h2.console.enabled=true
+logging.level.org.hibernate.SQL=info
+spring.jpa.generate-ddl=true
+spring.jpa.hibernate.ddl-auto=create
@@ -0,0 +1,40 @@
+INSERT INTO student (id,name,gender,age) 
+VALUES (1,'Bryan', 'Male',20);
+INSERT INTO student (id,name,gender,age) 
+VALUES (2, 'Ben', 'Male', 22);
+INSERT INTO student (id,name,gender,age) 
+VALUES (3,'Lisa', 'Female',24);
+INSERT INTO student (id,name,gender,age) 
+VALUES (4,'Sarah', 'Female',20);
+INSERT INTO student (id,name,gender,age) 
+VALUES (5,'Jay', 'Male',20);
+INSERT INTO student (id,name,gender,age) 
+VALUES (6,'John', 'Male',22);
+INSERT INTO student (id,name,gender,age) 
+VALUES (7,'Jordan', 'Male',24);
+INSERT INTO student (id,name,gender,age) 
+VALUES (8,'Rob', 'Male',26);
+INSERT INTO student (id,name,gender,age) 
+VALUES (9,'Will', 'Male',20);
+INSERT INTO student (id,name,gender,age) 
+VALUES (10,'Shawn', 'Male',22);
+INSERT INTO student (id,name,gender,age) 
+VALUES (11,'Taylor', 'Female',24);
+INSERT INTO student (id,name,gender,age) 
+VALUES (12,'Venus', 'Female',26);
+INSERT INTO student (id,name,gender,age) 
+VALUES (13,'Vince', 'Male',20);
+INSERT INTO student (id,name,gender,age) 
+VALUES (14,'Carol', 'Female',22);
+INSERT INTO student (id,name,gender,age) 
+VALUES (15,'Joana', 'Female',24);
+INSERT INTO student (id,name,gender,age) 
+VALUES (16,'Dion', 'Male',26);
+INSERT INTO student (id,name,gender,age) 
+VALUES (17,'Evans', 'Male',20);
+INSERT INTO student (id,name,gender,age) 
+VALUES (18,'Bart', 'Male',22);
+INSERT INTO student (id,name,gender,age) 
+VALUES (19,'Jenny', 'Female',24);
+INSERT INTO student (id,name,gender,age) 
+VALUES (20,'Kristine', 'Female',26);
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>
--- a/Show More
+++ b/Show More