L04 SpringBoot

2026-05-30 10:50:42 +00:00 · 2020-03-09 18:29:02 +03:00
parent 1fb4d29c86
commit 376aa8b17a
19 changed files with 528 additions and 0 deletions
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+# Spring-boot
+
+Example of Spring Boot
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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>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>mainApplication</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>2.2.5.RELEASE</version>
+    </parent>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>13</maven.compiler.source>
+        <maven.compiler.target>13</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</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.boot.context.properties.ConfigurationProperties;
+
+@ConfigurationProperties(prefix = "application")
+public class YamlProps {
+
+    private String message;
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+}
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+package ru.otus.mainpackage.welcome;
+
+import java.util.Map;
+
+public interface Greeting {
+    Map<String, String> sayHello(String name);
+}
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+package ru.otus.mainpackage.welcome;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.bind.annotation.*;
+
+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) {
+        logger.info("Я НАСТОЯЩИЙ БИН!!!");
+        this.greeting = greeting;
+    }
+
+    //http://localhost:8080/hello/jone
+    @RequestMapping(method = RequestMethod.GET, value="/hello/{name}")
+    public Map<String, String> sayHello(@PathVariable("name") String name) {
+        return this.greeting.sayHello(name);
+    }
+}
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+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;
+    }
+}
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+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 ru.otus.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");
+    }
+}
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+server:
+  port: 8080
+management:
+  endpoints:
+    web:
+      exposure:
+        include: info, health, beans
+
+application:
+  message: "Test Props msg"
+
+messager:
+  message: "Hello from Messager"
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+<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="DEBUG">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>
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+package ru.otus.mainpackage.welcome;
+
+import java.util.Collections;
+import java.util.Map;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.when;
+
+
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+public class GreetingControllerTest {
+
+    @LocalServerPort
+    private int port;
+
+    @Autowired
+    private TestRestTemplate testRestTemplate; //call remote REST services
+
+    @MockBean
+    private GreetingController greetingController;
+
+    @Test
+    public void sayHelloTest() {
+        final String name = "Mr.Test";
+        ResponseEntity<Map> entity = this.testRestTemplate.getForEntity(
+                "http://localhost:" + this.port + "/hello?name=" + name, Map.class);
+
+        assertEquals(HttpStatus.OK, entity.getStatusCode());
+        assertNotNull(entity.getBody(), "body not null");
+        assertTrue(entity.getBody().containsKey(name));
+    }
+
+    @Test
+    public void sayHelloTestMock() {
+        final String name = "Mr.Test";
+
+        when(greetingController.sayHello(anyString())).thenReturn(Collections.singletonMap(name, name));
+
+        ResponseEntity<Map> entity = this.testRestTemplate.getForEntity(
+                "http://localhost:" + this.port + "/hello/" + name, Map.class);
+
+        assertEquals(HttpStatus.OK, entity.getStatusCode());
+        assertNotNull(entity.getBody(), "body not null");
+        assertTrue(entity.getBody().containsKey(name));
+    }
+
+}
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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>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>messager-starter</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>13</maven.compiler.source>
+        <maven.compiler.target>13</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>2.2.5.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</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);
+    }
+}
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+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 +1,52 @@
+<?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</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>13</maven.compiler.source>
+        <maven.compiler.target>13</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;
+    }
+}