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Merge pull request #8911 from kwoyke/JAVA-86 

JAVA-86: Create spring-boot-basic-customization module
This commit is contained in:
Josh Cummings 2020-03-21 22:37:25 -06:00 committed by GitHub
parent c9569ac3a0 a7e146e5d1
commit 63a14ce5ca
37 changed files with 662 additions and 0 deletions
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1
spring-boot-modules/pom.xml
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<module>spring-boot-annotations</module>
<module>spring-boot-artifacts</module>
<module>spring-boot-autoconfiguration</module>
<module>spring-boot-basic-customization</module>
<module>spring-boot-bootstrap</module>
<module>spring-boot-client</module>
<module>spring-boot-config-jpa-error</module>

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spring-boot-modules/spring-boot-basic-customization/README.md Normal file
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## Spring Boot Basic Customization
This module contains articles about Spring Boot customization
### Relevant Articles:
- [How to Change the Default Port in Spring Boot](https://www.baeldung.com/spring-boot-change-port)
- [Using Custom Banners in Spring Boot](https://www.baeldung.com/spring-boot-custom-banners)
- [Create a Custom FailureAnalyzer with Spring Boot](https://www.baeldung.com/spring-boot-failure-analyzer)
- [Spring Boot: Customize Whitelabel Error Page](https://www.baeldung.com/spring-boot-custom-error-page)
- [Spring Boot: Configuring a Main Class](https://www.baeldung.com/spring-boot-main-class)
- [How to Define a Spring Boot Filter?](https://www.baeldung.com/spring-boot-add-filter)
- [Guide to the Favicon in Spring Boot](https://www.baeldung.com/spring-boot-favicon)

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spring-boot-modules/spring-boot-basic-customization/pom.xml Normal file
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<?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-boot-basic-customization</artifactId>
<name>spring-boot-basic-customization</name>
<packaging>jar</packaging>
<description>Module For Spring Boot Basic Customization</description>
<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</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<!-- The main class to start by executing "java -jar" -->
<start-class>com.baeldung.changeport.CustomApplication</start-class>
</properties>
</project>

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/FilterConfig.java Normal file
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package com.baeldung.bootcustomfilters;
import com.baeldung.bootcustomfilters.filters.RequestResponseLoggingFilter;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class FilterConfig {
// uncomment this and comment the @Component in the filter class definition to register only for a url pattern
// @Bean
public FilterRegistrationBean<RequestResponseLoggingFilter> loggingFilter() {
FilterRegistrationBean<RequestResponseLoggingFilter> registrationBean = new FilterRegistrationBean<>();
registrationBean.setFilter(new RequestResponseLoggingFilter());
registrationBean.addUrlPatterns("/users/*");
return registrationBean;
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/SpringBootFiltersApplication.java Normal file
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package com.baeldung.bootcustomfilters;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
* Boot application
* @author hemant
*
*/
@SpringBootApplication
public class SpringBootFiltersApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootFiltersApplication.class, args);
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/controller/UserController.java Normal file
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package com.baeldung.bootcustomfilters.controller;
import com.baeldung.bootcustomfilters.model.User;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.Arrays;
import java.util.List;
import java.util.UUID;
/**
* Rest controller for User
* @author hemant
*
*/
@RestController
@RequestMapping("/users")
public class UserController {
private static final Logger LOG = LoggerFactory.getLogger(UserController.class);
@GetMapping("")
public List<User> getAllUsers() {
LOG.info("Fetching all the users");
return Arrays.asList(
new User(UUID.randomUUID().toString(), "User1", "user1@test.com"),
new User(UUID.randomUUID().toString(), "User1", "user1@test.com"),
new User(UUID.randomUUID().toString(), "User1", "user1@test.com"));
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/filters/RequestResponseLoggingFilter.java Normal file
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package com.baeldung.bootcustomfilters.filters;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* A servlet filter to log request and response
* The logging implementation is pretty native and for demonstration only
* @author hemant
*
*/
@Component
@Order(2)
public class RequestResponseLoggingFilter implements Filter {
private final static Logger LOG = LoggerFactory.getLogger(RequestResponseLoggingFilter.class);
@Override
public void init(final FilterConfig filterConfig) throws ServletException {
LOG.info("Initializing filter :{}", this);
}
@Override
public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain)
throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse res = (HttpServletResponse) response;
LOG.info("Logging Request {} : {}", req.getMethod(), req.getRequestURI());
chain.doFilter(request, response);
LOG.info("Logging Response :{}", res.getContentType());
}
@Override
public void destroy() {
LOG.warn("Destructing filter :{}", this);
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/filters/TransactionFilter.java Normal file
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package com.baeldung.bootcustomfilters.filters;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
/**
* A filter to create transaction before and commit it once request completes
* The current implemenatation is just for demo
* @author hemant
*
*/
@Component
@Order(1)
public class TransactionFilter implements Filter {
private final static Logger LOG = LoggerFactory.getLogger(TransactionFilter.class);
@Override
public void init(final FilterConfig filterConfig) throws ServletException {
LOG.info("Initializing filter :{}", this);
}
@Override
public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain) throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
LOG.info("Starting Transaction for req :{}", req.getRequestURI());
chain.doFilter(request, response);
LOG.info("Committing Transaction for req :{}", req.getRequestURI());
}
@Override
public void destroy() {
LOG.warn("Destructing filter :{}", this);
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/model/User.java Normal file
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package com.baeldung.bootcustomfilters.model;
/**
* User model
* @author hemant
*
*/
public class User {
private String id;
private String name;
private String email;
public User(String id, String name, String email) {
super();
this.id = id;
this.name = name;
this.email = email;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/changeport/CustomApplication.java Normal file
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package com.baeldung.changeport;
import java.util.Collections;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class CustomApplication {
public static void main(String[] args) {
SpringApplication app = new SpringApplication(CustomApplication.class);
app.setDefaultProperties(Collections.singletonMap("server.port", "8083"));
app.run(args);
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/changeport/ServerPortCustomizer.java Normal file
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package com.baeldung.changeport;
import org.springframework.boot.web.server.ConfigurableWebServerFactory;
import org.springframework.boot.web.server.WebServerFactoryCustomizer;
import org.springframework.stereotype.Component;
//@Component
public class ServerPortCustomizer implements WebServerFactoryCustomizer<ConfigurableWebServerFactory> {
@Override
public void customize(ConfigurableWebServerFactory factory) {
factory.setPort(8086);
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/errorhandling/ErrorHandlingApplication.java Normal file
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package com.baeldung.errorhandling;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication(scanBasePackages = "com.baeldung.errorhandling")
public class ErrorHandlingApplication {
public static void main(String [] args) {
System.setProperty("spring.profiles.active", "errorhandling");
SpringApplication.run(ErrorHandlingApplication.class, args);
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/errorhandling/controllers/IndexController.java Normal file
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package com.baeldung.errorhandling.controllers;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
@Controller
public class IndexController {
@GetMapping(value = {"/", ""})
public String index() {
return "index";
}
@GetMapping(value = {"/server_error"})
public String triggerServerError() {
"ser".charAt(30);
return "index";
}
@PostMapping(value = {"/general_error"})
public String triggerGeneralError() {
return "index";
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/errorhandling/controllers/MyErrorController.java Normal file
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package com.baeldung.errorhandling.controllers;
import org.springframework.boot.web.servlet.error.ErrorController;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import javax.servlet.RequestDispatcher;
import javax.servlet.http.HttpServletRequest;
@Controller
public class MyErrorController implements ErrorController {
public MyErrorController() {}
@GetMapping(value = "/error")
public String handleError(HttpServletRequest request) {
Object status = request.getAttribute(RequestDispatcher.ERROR_STATUS_CODE);
if (status != null) {
Integer statusCode = Integer.valueOf(status.toString());
if(statusCode == HttpStatus.NOT_FOUND.value()) {
return "error-404";
}
else if(statusCode == HttpStatus.INTERNAL_SERVER_ERROR.value()) {
return "error-500";
}
}
return "error";
}
@Override
public String getErrorPath() {
return "/error";
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/FailureAnalyzerApplication.java Normal file
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package com.baeldung.failureanalyzer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import javax.annotation.security.RolesAllowed;
@SpringBootApplication
public class FailureAnalyzerApplication {
@RolesAllowed("*")
public static void main(String[] args) {
SpringApplication.run(FailureAnalyzerApplication.class, args);
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/MyBeanNotOfRequiredTypeFailureAnalyzer.java Normal file
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package com.baeldung.failureanalyzer;
import org.springframework.beans.factory.BeanNotOfRequiredTypeException;
import org.springframework.boot.diagnostics.AbstractFailureAnalyzer;
import org.springframework.boot.diagnostics.FailureAnalysis;
public class MyBeanNotOfRequiredTypeFailureAnalyzer extends AbstractFailureAnalyzer<BeanNotOfRequiredTypeException> {
@Override
protected FailureAnalysis analyze(Throwable rootFailure, BeanNotOfRequiredTypeException cause) {
return new FailureAnalysis(getDescription(cause), getAction(cause), cause);
}
private String getDescription(BeanNotOfRequiredTypeException ex) {
return String.format("The bean %s could not be injected as %s because it is of type %s", ex.getBeanName(), ex.getRequiredType().getName(), ex.getActualType().getName());
}
private String getAction(BeanNotOfRequiredTypeException ex) {
return String.format("Consider creating a bean with name %s of type %s", ex.getBeanName(), ex.getRequiredType().getName());
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/MyDAO.java Normal file
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package com.baeldung.failureanalyzer;
public class MyDAO {
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/MySecondDAO.java Normal file
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package com.baeldung.failureanalyzer;
import org.springframework.stereotype.Repository;
@Repository("myDAO")
public class MySecondDAO {
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/MyService.java Normal file
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package com.baeldung.failureanalyzer;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
@Service
public class MyService {
@Resource(name = "myDAO")
private MyDAO myDAO;
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/favicon/FaviconApplication.java Normal file
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package com.baeldung.favicon;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class FaviconApplication {
public static void main(String[] args) {
SpringApplication.run(FaviconApplication.class, args);
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/favicon/config/FaviconConfiguration.java Normal file
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package com.baeldung.favicon.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.handler.SimpleUrlHandlerMapping;
import org.springframework.web.servlet.resource.ResourceHttpRequestHandler;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
@Configuration
public class FaviconConfiguration {
@Bean
public SimpleUrlHandlerMapping myFaviconHandlerMapping() {
SimpleUrlHandlerMapping mapping = new SimpleUrlHandlerMapping();
mapping.setOrder(Integer.MIN_VALUE);
mapping.setUrlMap(Collections.singletonMap("/favicon.ico", faviconRequestHandler()));
return mapping;
}
@Bean
protected ResourceHttpRequestHandler faviconRequestHandler() {
ResourceHttpRequestHandler requestHandler = new ResourceHttpRequestHandler();
ClassPathResource classPathResource = new ClassPathResource("com/baeldung/images");
List<Resource> locations = Arrays.asList(classPathResource);
requestHandler.setLocations(locations);
return requestHandler;
}
// @Controller
static class FaviconController {
@RequestMapping(value = "favicon.ico", method = RequestMethod.GET)
@ResponseBody
void favicon() {
}
}
}

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spring-boot-modules/spring-boot-basic-customization/src/main/resources/META-INF/spring.factories Normal file
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org.springframework.boot.diagnostics.FailureAnalyzer=com.baeldung.failureanalyzer.MyBeanNotOfRequiredTypeFailureAnalyzer

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spring-boot-modules/spring-boot-basic-customization/src/main/resources/application-errorhandling.properties Normal file
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#server
server.port=9000
spring.mvc.servlet.path=/
server.servlet.context-path=/
server.error.whitelabel.enabled=false
#spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration
#for Spring Boot 2.0+
#spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration

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spring-boot-modules/spring-boot-basic-customization/src/main/resources/application.properties Normal file
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#spring.banner.charset=UTF-8
#spring.banner.location=classpath:banner.txt
#spring.banner.image.location=classpath:banner.gif
#spring.banner.image.width= //TODO
#spring.banner.image.height= //TODO
#spring.banner.image.margin= //TODO
#spring.banner.image.invert= //TODO

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spring-boot-modules/spring-boot-basic-customization/src/main/resources/banner.txt Normal file
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@@@@@@@@@@@@@@@@@@@@@@#. @@@@@* *@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@. @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@#o @@@@@* @@@@@* @@@:*.*@@@@@@@: *8@@@ @@@@&:.#@. @o**@@@@**:@o*o@@:.:@@@@@:.o#@&*:@@@@
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@@@@@@@@@@. @ o@@@@@* *@@@o::& .* 8@@@@. @@ 8@@@@. @* @@@@ @. @@@& * @@@@# .@@@@
@@@@@@@@@& @ @@@@@@* @@@@@@ 8 @@@@ .. o&&&&&&& @@ #@@@@. @* @@@@ @. @@@# * @@@@@ .@@@@
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<?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>

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<!DOCTYPE html>
<html>
<body>
<h1> Sorry, we couldn't find the page you were looking for. </h1>
<p><a href="/">Go Home</a></p>
</body>
</html>

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spring-boot-modules/spring-boot-basic-customization/src/main/resources/templates/error-500.html Normal file
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<!DOCTYPE html>
<html>
<body>
<h1> Sorry, something went wrong! </h1>
<h2>We're fixing it.</h2>
<p><a href="/">Go Home</a></p>
</body>
</html>

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spring-boot-modules/spring-boot-basic-customization/src/main/resources/templates/error.html Normal file
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<!DOCTYPE html>
<html>
<body>
<h1> Something went wrong! </h1>
<h2>Our Engineers are on it.</h2>
<p><a href="/">Go Home</a></p>
</body>
</html>

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spring-boot-modules/spring-boot-basic-customization/src/main/resources/templates/error/404.html Normal file
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<html>
<head>
<title>RESOURCE NOT FOUND</title>
</head>
<body>
<h1>404 RESOURCE NOT FOUND</h1>
</body>
</html>

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spring-boot-modules/spring-boot-basic-customization/src/main/resources/templates/index.html Normal file
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<html>
<body>
<h1>Welcome Home</h1>
<p><strong>Success!</strong> It is working as we expected.</p>
</body>
</html>

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spring-boot-modules/spring-boot-basic-customization/src/test/java/com/baeldung/failureanalyzer/FailureAnalyzerAppIntegrationTest.java Normal file
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package com.baeldung.failureanalyzer;
import ch.qos.logback.classic.spi.ILoggingEvent;
import com.baeldung.failureanalyzer.utils.ListAppender;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.boot.SpringApplication;
import java.util.Collection;
import java.util.stream.Collectors;
import static org.assertj.core.api.Assertions.assertThat;
public class FailureAnalyzerAppIntegrationTest {
private static final String EXPECTED_ANALYSIS_DESCRIPTION_TITLE = "Description:";
private static final String EXPECTED_ANALYSIS_DESCRIPTION_CONTENT = "The bean myDAO could not be injected as com.baeldung.failureanalyzer.MyDAO because it is of type com.baeldung.failureanalyzer.MySecondDAO";
private static final String EXPECTED_ANALYSIS_ACTION_TITLE = "Action:";
private static final String EXPECTED_ANALYSIS_ACTION_CONTENT = "Consider creating a bean with name myDAO of type com.baeldung.failureanalyzer.MyDAO";
@BeforeEach
public void clearLogList() {
ListAppender.clearEventList();
}
@Test
public void givenBeanCreationErrorInContext_whenContextLoaded_thenFailureAnalyzerLogsReport() {
try {
SpringApplication.run(FailureAnalyzerApplication.class);
} catch (BeanCreationException e) {
Collection<String> allLoggedEntries = ListAppender.getEvents()
.stream()
.map(ILoggingEvent::getFormattedMessage)
.collect(Collectors.toList());
assertThat(allLoggedEntries).anyMatch(entry -> entry.contains(EXPECTED_ANALYSIS_DESCRIPTION_TITLE))
.anyMatch(entry -> entry.contains(EXPECTED_ANALYSIS_DESCRIPTION_CONTENT))
.anyMatch(entry -> entry.contains(EXPECTED_ANALYSIS_ACTION_TITLE))
.anyMatch(entry -> entry.contains(EXPECTED_ANALYSIS_ACTION_CONTENT));
return;
}
throw new IllegalStateException("Context load should be failing due to a BeanCreationException!");
}
}

25
spring-boot-modules/spring-boot-basic-customization/src/test/java/com/baeldung/failureanalyzer/utils/ListAppender.java Normal file
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@ -0,0 +1,25 @@
package com.baeldung.failureanalyzer.utils;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.AppenderBase;
import java.util.ArrayList;
import java.util.List;
public class ListAppender extends AppenderBase<ILoggingEvent> {
static private List<ILoggingEvent> events = new ArrayList<>();
@Override
protected void append(ILoggingEvent eventObject) {
events.add(eventObject);
}
public static List<ILoggingEvent> getEvents() {
return events;
}
public static void clearEventList() {
events.clear();
}
}

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spring-boot-modules/spring-boot-basic-customization/src/test/resources/logback-test.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<include
resource="org/springframework/boot/logging/logback/base.xml" />
<appender name="LISTAPPENDER"
class="com.baeldung.failureanalyzer.utils.ListAppender">
</appender>
<logger
name="org.springframework.boot.diagnostics.LoggingFailureAnalysisReporter">
<appender-ref ref="LISTAPPENDER" />
</logger>
<root level="info">
<appender-ref ref="CONSOLE" />
</root>
</configuration>