L04 SpringBoot

2026-05-30 10:50:42 +00:00 · 2020-06-09 00:59:27 +03:00
parent 5d2e27cdf8
commit 3c263db0b1
26 changed files with 682 additions and 0 deletions
@@ -0,0 +1,101 @@
+<?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>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>application-2020-05</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <!-- Наследуем зависимости от глобального родителя  -->
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.3.0.RELEASE</version>
+    </parent>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+
+        <maven-enforcer-plugin.version>3.0.0-M3</maven-enforcer-plugin.version>
+        <minimal.maven.version>3.3.9</minimal.maven.version>
+
+        <messager-starter.version>0.0.1-SNAPSHOT</messager-starter.version>
+    </properties>
+
+
+    <!-- Стартеры -->
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>ru.otus</groupId>
+            <artifactId>messager-starter-2020-05</artifactId>
+            <version>${messager-starter.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- эффект стартера
+        <dependency>
+            <groupId>org.mongodb</groupId>
+            <artifactId>mongo-java-driver</artifactId>
+            <version>3.12.2</version>
+        </dependency>
+        <dependency>
+            <groupId>org.mongodb</groupId>
+            <artifactId>mongodb-driver</artifactId>
+            <version>3.12.2</version>
+        </dependency>
+        -->
+    </dependencies>
+
+    <!-- собираем "жирный" jar-ник-->
+    <build>
+        <plugins>
+
+            <plugin>
+                <artifactId>maven-enforcer-plugin</artifactId>
+                <version>${maven-enforcer-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <id>enforce-maven</id>
+                        <goals>
+                            <goal>enforce</goal>
+                        </goals>
+                        <configuration>
+                            <rules>
+                                <dependencyConvergence/>
+                                <requireMavenVersion>
+                                    <version>${minimal.maven.version}</version>
+                                </requireMavenVersion>
+                            </rules>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <configuration>
+                    <executable>true</executable>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>
@@ -0,0 +1,16 @@
+package ru.otus.mainpackage;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import ru.otus.mainpackage.configs.YamlProps;
+
+
+@SpringBootApplication
+@EnableConfigurationProperties(YamlProps.class)
+public class Demo {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Demo.class, args);
+    }
+}
@@ -0,0 +1,17 @@
+package ru.otus.mainpackage.configs;
+
+import org.springframework.context.MessageSource;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.support.ReloadableResourceBundleMessageSource;
+
+@Configuration
+public class Localization {
+    @Bean
+    public MessageSource messageSource() {
+        var ms = new ReloadableResourceBundleMessageSource();
+        ms.setBasename("classpath:/il8n/bundle");
+        ms.setDefaultEncoding("UTF-8");
+        return ms;
+    }
+}
@@ -0,0 +1,28 @@
+package ru.otus.mainpackage.configs;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+import java.util.Locale;
+
+@ConfigurationProperties(prefix = "application")
+public class YamlProps {
+
+    private String message;
+    private Locale locale;
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+
+    public Locale getLocale() {
+        return locale;
+    }
+
+    public void setLocale(Locale locale) {
+        this.locale = locale;
+    }
+}
@@ -0,0 +1,7 @@
+package ru.otus.mainpackage.welcome;
+
+import java.util.Map;
+
+public interface Greeting {
+    Map<String, String> sayHello(String name);
+}
@@ -0,0 +1,28 @@
+package ru.otus.mainpackage.welcome;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import ru.otus.mainpackage.configs.YamlProps;
+
+
+import java.util.Map;
+
+@RestController
+public class GreetingController {
+    private static final Logger logger = LoggerFactory.getLogger(GreetingController.class);
+    private final Greeting greeting;
+
+    public GreetingController(Greeting greeting, YamlProps props) {
+        this.greeting = greeting;
+        logger.info("ATTENTION! props.getMessage(): {}", props.getMessage());
+    }
+
+    //http://localhost:8080/hello?name=ddd
+    @GetMapping("/hello")
+    public Map<String, String> sayHello(@RequestParam(name="name") String name) {
+        return this.greeting.sayHello(name);
+    }
+}
@@ -0,0 +1,27 @@
+package ru.otus.mainpackage.welcome;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Map;
+
+@RestController
+public class GreetingControllerRstyle {
+    private static final Logger logger = LoggerFactory.getLogger(GreetingControllerRstyle.class);
+
+    private final Greeting greeting;
+
+    public GreetingControllerRstyle(Greeting greeting) {
+        logger.info("Я НАСТОЯЩИЙ БИН!!!");
+        this.greeting = greeting;
+    }
+
+    //http://localhost:8080/hello/jone
+    @GetMapping(value="/hello/{name}")
+    public Map<String, String> sayHello(@PathVariable("name") String name) {
+        return this.greeting.sayHello(name);
+    }
+}
@@ -0,0 +1,17 @@
+package ru.otus.mainpackage.welcome;
+
+import org.springframework.stereotype.Service;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@Service
+public class GreetingService implements Greeting {
+
+    @Override
+    public Map<String, String> sayHello(String name) {
+        Map<String, String> map = new HashMap<>();
+        map.put(name, "Hello, " + name);
+        return map;
+    }
+}
@@ -0,0 +1,29 @@
+package ru.otus.mainpackage.welcome;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.MessageSource;
+import org.springframework.stereotype.Component;
+import ru.otus.mainpackage.configs.YamlProps;
+
+import javax.annotation.PostConstruct;
+
+@Component
+public class LocalHello {
+    private static final Logger logger = LoggerFactory.getLogger(LocalHello.class);
+
+    private final MessageSource messageSource;
+    private final YamlProps props;
+
+    public LocalHello(MessageSource messageSource, YamlProps props) {
+        this.messageSource = messageSource;
+        this.props = props;
+    }
+
+    //!!! Вообще, PostConstruct - это плохая практика !!!
+    @PostConstruct
+    public void printHello() {
+        var message = messageSource.getMessage("hello.user", new String[]{"Ivan"}, props.getLocale());
+        logger.info(message);
+    }
+}
@@ -0,0 +1,28 @@
+package ru.otus.mainpackage.сommandlinerunners;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+import ru.otus.Messager;
+
+import java.util.Arrays;
+
+
+@Component
+public class PreparationDev implements CommandLineRunner {
+    private static final Logger logger = LoggerFactory.getLogger(PreparationDev.class);
+
+    private final Messager messager;
+
+    public PreparationDev(Messager messager) {
+        this.messager = messager;
+    }
+
+    @Override
+    public void run(String... args) {
+        logger.info("DEV mode!!! Что-то настравиваем и подготавливаем, параметры: {} ", Arrays.toString(args));
+        logger.info("message from Messager:{}", messager.sayMessage());
+        //args парметры, котрые могут быть переданы в Main
+    }
+}
@@ -0,0 +1,17 @@
+package wrongPackage;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+
+//Этот компонент не будет найден, т.к. нарушена иерархия пакетов
+@Component
+public class PreparationUnKnown implements CommandLineRunner {
+    private static final Logger logger = LoggerFactory.getLogger(PreparationUnKnown.class);
+
+    @Override
+    public void run(String... args) throws Exception {
+        logger.info("Это не увидим никогда");
+    }
+}
@@ -0,0 +1,15 @@
+server:
+  port: 8080
+
+management:
+  endpoints:
+    web:
+      exposure:
+        include: info, health, beans
+
+application:
+  message: "Test Props msg"
+  locale: ru_RU
+
+messager:
+  message: "Hello from Messager"
@@ -0,0 +1 @@
+hello.user="Hello, {0}"!
@@ -0,0 +1 @@
+hello.user="Привет, {0}"!
@@ -0,0 +1,13 @@
+<configuration scan="true" scanPeriod="10 seconds">
+    <jmxConfigurator />
+
+    <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>
@@ -0,0 +1,62 @@
+package ru.otus.mainpackage.welcome;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.mock.web.MockHttpServletResponse;
+import org.springframework.test.web.servlet.MockMvc;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+
+
+@WebMvcTest({GreetingController.class,  GreetingControllerRstyle.class})
+public class GreetingControllerTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @MockBean
+    private Greeting greeting;
+
+    @Test
+    public void sayHelloTest() throws Exception {
+        String name = "Mr.Test";
+        Map<String, String> map = new HashMap<>();
+        map.put(name, "Hello, " + name);
+        String expectedResult = "{\"Mr.Test\":\"Hello, Mr.Test\"}";
+
+        when(greeting.sayHello(name)).thenReturn(map);
+        MockHttpServletResponse result = mockMvc.perform(get(String.format("/hello?name=%s", name)))
+                .andReturn()
+                .getResponse();
+
+        verify(greeting, times(1)).sayHello(name);
+        System.out.println();
+        assertThat(result.getContentAsString()).isEqualTo(expectedResult);
+    }
+
+    @Test
+    public void sayHelloTestMock() throws Exception {
+        String name = "Mr.Test";
+        Map<String, String> map = new HashMap<>();
+        map.put(name, "Hello, " + name);
+        String expectedResult = "{\"Mr.Test\":\"Hello, Mr.Test\"}";
+
+        when(greeting.sayHello(name)).thenReturn(map);
+        MockHttpServletResponse result = mockMvc.perform(get(String.format("/hello/%s", name)))
+                .andReturn()
+                .getResponse();
+
+        verify(greeting, times(1)).sayHello(name);
+        System.out.println();
+        assertThat(result.getContentAsString()).isEqualTo(expectedResult);
+    }
+}
@@ -0,0 +1,75 @@
+<?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>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>messager-starter-2020-05</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+
+        <maven-enforcer-plugin.version>3.0.0-M3</maven-enforcer-plugin.version>
+        <minimal.maven.version>3.3.9</minimal.maven.version>
+
+        <maven-shade-plugin.version>3.2.1</maven-shade-plugin.version>
+
+        <spring-boot-starter.version>2.3.0.RELEASE</spring-boot-starter.version>
+        <messager.version>0.0.1-SNAPSHOT</messager.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+            <version>${spring-boot-starter.version}</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>jul-to-slf4j</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+
+        <dependency>
+            <groupId>ru.otus</groupId>
+            <artifactId>messager-2020-05</artifactId>
+            <version>${messager.version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+
+            <plugin>
+                <artifactId>maven-enforcer-plugin</artifactId>
+                <version>${maven-enforcer-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <id>enforce-maven</id>
+                        <goals>
+                            <goal>enforce</goal>
+                        </goals>
+                        <configuration>
+                            <rules>
+                                <dependencyConvergence/>
+                                <requireMavenVersion>
+                                    <version>${minimal.maven.version}</version>
+                                </requireMavenVersion>
+                            </rules>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>${maven-shade-plugin.version}</version>
+            </plugin>
+        </plugins>
+    </build>
+</project>
@@ -0,0 +1,38 @@
+package ru.otus;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+
+@Configuration
+@ConditionalOnClass(Messager.class)
+@EnableConfigurationProperties(Props.class)
+public class MessagerAutoConfiguration {
+    private static final Logger logger = LoggerFactory.getLogger(MessagerAutoConfiguration.class);
+
+    private final Props props;
+
+    public MessagerAutoConfiguration(Props props) {
+        this.props = props;
+    }
+
+    @Bean
+    @ConditionalOnMissingBean
+    public MessagerConfig messagerConfig() {
+        String message = props.getMessage() == null ? "default message" : props.getMessage();
+        logger.info("AutoConfig. creating MessagerConfig, default message:{}", message);
+        return new MessagerConfig(message);
+    }
+
+    @Bean
+    @ConditionalOnMissingBean
+    public Messager messager(MessagerConfig messagerConfig) {
+        logger.info("AutoConfig. creating Messager");
+        return new Messager(messagerConfig);
+    }
+}
@@ -0,0 +1,17 @@
+package ru.otus;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+@ConfigurationProperties(prefix="messager")
+public class Props {
+
+    private String message;
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+}
@@ -0,0 +1,2 @@
+org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
+  ru.otus.MessagerAutoConfiguration
@@ -0,0 +1,51 @@
+<?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>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>messager-2020-05</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+
+        <maven-enforcer-plugin.version>3.0.0-M3</maven-enforcer-plugin.version>
+        <minimal.maven.version>3.3.9</minimal.maven.version>
+
+        <maven-shade-plugin.version>3.2.1</maven-shade-plugin.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-enforcer-plugin</artifactId>
+                <version>${maven-enforcer-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <id>enforce-maven</id>
+                        <goals>
+                            <goal>enforce</goal>
+                        </goals>
+                        <configuration>
+                            <rules>
+                                <dependencyConvergence/>
+                                <requireMavenVersion>
+                                    <version>${minimal.maven.version}</version>
+                                </requireMavenVersion>
+                            </rules>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>${maven-shade-plugin.version}</version>
+            </plugin>
+        </plugins>
+    </build>
+</project>
@@ -0,0 +1,13 @@
+package ru.otus;
+
+public class Messager {
+    private final MessagerConfig config;
+
+    public Messager(MessagerConfig config) {
+        this.config = config;
+    }
+
+    public String sayMessage() {
+        return config.getMessage();
+    }
+}
@@ -0,0 +1,13 @@
+package ru.otus;
+
+public class MessagerConfig {
+    private final String message;
+
+    public MessagerConfig(String message) {
+        this.message = message;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+}
@@ -0,0 +1,40 @@
+<?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>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>springBoot-hello</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <!-- Наследуем зависимости от глобального родителя  -->
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.3.0.RELEASE</version>
+    </parent>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+    </properties>
+
+    <!-- нужные зависимости -->
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+    </dependencies>
+
+    <!-- собираем "жирный" jar-ник-->
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>
@@ -0,0 +1,20 @@
+package ru.otus;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+
+
+@SpringBootApplication
+public class HelloWorldDemo {
+    public static void main(String[] args) {
+        var context = SpringApplication.run(HelloWorldDemo.class, args);
+        var welcome = context.getBean(Welcome.class);
+        welcome.sayHello();
+    }
+
+    @Bean
+    public Welcome speaker() {
+        return () -> System.out.println("Hello, World");
+    }
+}
@@ -0,0 +1,6 @@
+package ru.otus;
+
+@FunctionalInterface
+public interface Welcome {
+    void sayHello();
+}