Introducing Spring Framework

Chapter 19 ■ Spring Boot, Simplifying Everything
configurations {
providedRuntime
}
dependencies {
compile("org.springframework.boot:spring-boot-starter-web") {
exclude module: "spring-boot-starter-tomcat"
}
compile("org.springframework.boot:spring-boot-starter-jetty")
compile("org.springframework.boot:spring-boot-starter-actuator")
compile("org.springframework.boot:spring-boot-starter-jdbc")
}
runtime 'hsqldb:hsqldb:1.8.0.10'
testCompile("junit:junit")
Listing 19-5 shows how to create a WAR file that can run on any application server. As you can see, there are
several sections: apply plugin: 'war', war, and configurations. In the war section, you provided the base name
and the version of the WAR file; in the configurations section, you added the providedRuntime keyword. This
keyword tells the gradle not to package jars that are already part of the application server.
Next, you are going to create a new class that will be the entry point for Spring Boot. This call will know how to
add dependencies and how to wire everything up for the WAR application. See Listing 19-6.
Listing 19-6. MyDocumentsWebApp.java
package com.apress.isf.spring.boot;
import javax.sql.DataSource;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabase;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.web.SpringBootServletInitializer;
@Configuration
@EnableAutoConfiguration
@ComponentScan("com.apress.isf.spring")
public class MyDocumentsWebApp extends SpringBootServletInitializer{
@Bean
public DataSource dataSource() {
EmbeddedDatabaseBuilder builder = new EmbeddedDatabaseBuilder();
EmbeddedDatabase db = builder.setType(EmbeddedDatabaseType.HSQL).
addScript("META-INF/data/schema.sql").
addScript("META-INF/data/data.sql").build();
return db;
}
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