Spring 2024-01 01 example added

2026-05-30 10:50:42 +00:00 · 2024-01-31 20:42:43 +04:00
parent c29db357da
commit 5a98d7f1f9
18 changed files with 322 additions and 0 deletions
@@ -0,0 +1,24 @@
+target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/build/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
@@ -0,0 +1,17 @@
+<?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>spring-01</artifactId>
+    <version>1.0</version>
+
+    <packaging>pom</packaging>
+
+    <modules>
+        <module>spring-01-exercise</module>
+        <module>spring-01-solution</module>
+    </modules>
+</project>
@@ -0,0 +1,20 @@
+<?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>spring-01-exercise</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>17</maven.compiler.target>
+        <maven.compiler.source>17</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <!-- TODO: Добавьте зависимость spring-context -->
+    </dependencies>
+</project>
@@ -0,0 +1,17 @@
+package ru.otus.spring;
+
+//import org.springframework.context.support.ClassPathXmlApplicationContext;
+import ru.otus.spring.domain.Person;
+
+public class Main {
+
+    public static void main(String[] args) {
+        // TODO: создайте здесь класс контекста
+
+        // TODO: Получите Person Service
+
+        // Получите Person "Ivan"
+        Person ivan = null;
+        System.out.println("name: " + ivan.getName() + " age: " + ivan.getAge());
+    }
+}
@@ -0,0 +1,8 @@
+package ru.otus.spring.dao;
+
+import ru.otus.spring.domain.Person;
+
+public interface PersonDao {
+
+    Person findByName(String name);
+}
@@ -0,0 +1,10 @@
+package ru.otus.spring.dao;
+
+import ru.otus.spring.domain.Person;
+
+public class PersonDaoSimple implements PersonDao {
+
+    public Person findByName(String name) {
+        return new Person(name, 18);
+    }
+}
@@ -0,0 +1,29 @@
+package ru.otus.spring.domain;
+
+public class Person {
+
+    private final String name;
+
+    private final int age;
+
+    public Person(String name, int age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    @Override
+    public String toString() {
+        return "Person{" +
+                "name='" + name + '\'' +
+                ", age=" + age +
+                '}';
+    }
+}
@@ -0,0 +1,8 @@
+package ru.otus.spring.service;
+
+import ru.otus.spring.domain.Person;
+
+public interface PersonService {
+
+    Person getByName(String name);
+}
@@ -0,0 +1,17 @@
+package ru.otus.spring.service;
+
+import ru.otus.spring.dao.PersonDao;
+import ru.otus.spring.domain.Person;
+
+public class PersonServiceImpl implements PersonService {
+
+    private final PersonDao dao;
+
+    public PersonServiceImpl(PersonDao dao) {
+        this.dao = dao;
+    }
+
+    public Person getByName(String name) {
+        return dao.findByName(name);
+    }
+}
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns="http://www.springframework.org/schema/beans"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+        http://www.springframework.org/schema/beans/spring-beans.xsd">
+
+    <!-- TODO: определите бин класса ru.otus.spring.dao.PersonDaoSimple -->
+
+    <!-- TODO: определите бин класса ru.otus.spring.PersonServiceImpl -->
+
+</beans>
@@ -0,0 +1,56 @@
+<?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>spring-01-solution</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>17</maven.compiler.target>
+        <maven.compiler.source>17</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <spring.version>6.1.3</spring.version>
+        <checkstyle-plugin.version>3.3.1</checkstyle-plugin.version>
+        <checkstyle.version>10.11.0</checkstyle.version>
+        <checkstyle.config.url>https://raw.githubusercontent.com/OtusTeam/Spring/master/checkstyle.xml</checkstyle.config.url>
+    </properties>
+
+    <dependencies>
+        <!-- Это зависимость spring-context, содержит базовую функциональность IoC -->
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-context</artifactId>
+            <version>${spring.version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+                <version>${checkstyle-plugin.version}</version>
+                <dependencies>
+                    <dependency>
+                        <groupId>com.puppycrawl.tools</groupId>
+                        <artifactId>checkstyle</artifactId>
+                        <version>${checkstyle.version}</version>
+                    </dependency>
+                </dependencies>
+                <configuration>
+                    <configLocation>${checkstyle.config.url}</configLocation>
+                </configuration>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>check</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>
@@ -0,0 +1,20 @@
+package ru.otus.spring;
+
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+import ru.otus.spring.domain.Person;
+import ru.otus.spring.service.PersonService;
+
+public class Main {
+
+    public static void main(String[] args) {
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("/spring-context.xml");
+        PersonService service = context.getBean(PersonService.class);
+        Person ivan = service.getByName("Ivan");
+        System.out.println("name: " + ivan.getName() + " age: " + ivan.getAge());
+
+        // Данная операция, в принципе не нужна.
+        // Мы не работаем пока что с БД, а Spring Boot сделает закрытие за нас
+        // Подробности - через пару занятий
+        context.close();
+    }
+}
@@ -0,0 +1,8 @@
+package ru.otus.spring.dao;
+
+import ru.otus.spring.domain.Person;
+
+public interface PersonDao {
+
+    Person findByName(String name);
+}
@@ -0,0 +1,10 @@
+package ru.otus.spring.dao;
+
+import ru.otus.spring.domain.Person;
+
+public class PersonDaoSimple implements PersonDao {
+
+    public Person findByName(String name) {
+        return new Person(name, 18);
+    }
+}
@@ -0,0 +1,29 @@
+package ru.otus.spring.domain;
+
+public class Person {
+
+    private final String name;
+
+    private final int age;
+
+    public Person(String name, int age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    @Override
+    public String toString() {
+        return "Person{" +
+                "name='" + name + '\'' +
+                ", age=" + age +
+                '}';
+    }
+}
@@ -0,0 +1,8 @@
+package ru.otus.spring.service;
+
+import ru.otus.spring.domain.Person;
+
+public interface PersonService {
+
+    Person getByName(String name);
+}
@@ -0,0 +1,17 @@
+package ru.otus.spring.service;
+
+import ru.otus.spring.dao.PersonDao;
+import ru.otus.spring.domain.Person;
+
+public class PersonServiceImpl implements PersonService {
+
+    private final PersonDao dao;
+
+    public PersonServiceImpl(PersonDao dao) {
+        this.dao = dao;
+    }
+
+    public Person getByName(String name) {
+        return dao.findByName(name);
+    }
+}
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns="http://www.springframework.org/schema/beans"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+        http://www.springframework.org/schema/beans/spring-beans.xsd">
+
+    <bean id="personDao" class="ru.otus.spring.dao.PersonDaoSimple" />
+
+    <bean id="personService" class="ru.otus.spring.service.PersonServiceImpl">
+        <constructor-arg index="0" ref="personDao"/>
+    </bean>
+
+</beans>