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Merge pull request #6988 from j7-juarez/BAEL-2908 

BAEL-2908 lazy initialization with spring boot 2.2
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rpvilao 2019-06-18 09:08:17 +02:00 committed by GitHub
parent 69f947e3cd f69f95d13d
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parent-boot-performance/README.md Normal file
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This is a parent module for projects that want to take advantage of the latest Spring Boot improvements/features.

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parent-boot-performance/pom.xml Normal file
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<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>parent-boot-performance</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>parent-boot-performance</name>
<packaging>pom</packaging>
<description>Parent for all modules that want to take advantage of the latest Spring Boot improvements/features. Current version: 2.2</description>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<properties>
<rest-assured.version>3.1.0</rest-assured.version>
<!-- plugins -->
<thin.version>1.0.21.RELEASE</thin.version>
<spring-boot.version>2.2.0.M3</spring-boot.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>io.rest-assured</groupId>
<artifactId>rest-assured</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${spring-boot.version}</version>
<configuration>
<mainClass>${start-class}</mainClass>
<!-- this is necessary as we're not using the Boot parent -->
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
</repositories>
<profiles>
<profile>
<id>thin-jar</id>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<dependencies>
<!-- The following enables the "thin jar" deployment option. -->
<dependency>
<groupId>org.springframework.boot.experimental</groupId>
<artifactId>spring-boot-thin-layout</artifactId>
<version>${thin.version}</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>

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spring-boot-performance/pom.xml Normal file
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<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-performance</artifactId>
<name>spring-boot-performance</name>
<packaging>war</packaging>
<description>This is a simple Spring Boot application taking advantage of the latest Spring Boot improvements/features. Current version: 2.2</description>
<parent>
<artifactId>parent-boot-performance</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-performance</relativePath>
</parent>
<properties>
<!-- The main class to start by executing java -jar -->
<start-class>com.baeldung.lazyinitialization.Application</start-class>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
</dependencies>
<build>
<finalName>spring-boot-performance</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

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spring-boot-performance/src/main/java/com/baeldung/lazyinitialization/Application.java Normal file
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package com.baeldung.lazyinitialization;
import com.baeldung.lazyinitialization.services.Writer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
@SpringBootApplication
public class Application {
@Bean("writer1")
public Writer getWriter1() {
return new Writer("Writer 1");
}
@Bean("writer2")
public Writer getWriter2() {
return new Writer("Writer 2");
}
public static void main(String[] args) {
ApplicationContext ctx = SpringApplication.run(Application.class, args);
System.out.println("Application context initialized!!!");
Writer writer1 = ctx.getBean("writer1", Writer.class);
writer1.write("First message");
Writer writer2 = ctx.getBean("writer2", Writer.class);
writer2.write("Second message");
}
}

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spring-boot-performance/src/main/java/com/baeldung/lazyinitialization/services/Writer.java Normal file
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package com.baeldung.lazyinitialization.services;
public class Writer {
private final String writerId;
public Writer(String writerId) {
this.writerId = writerId;
System.out.println(writerId + " initialized!!!");
}
public void write(String message) {
System.out.println(writerId + ": " + message);
}
}

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spring-boot-performance/src/main/resources/application.yml Normal file
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spring:
main:
lazy-initialization: true