Scala SpringApplication类代码示例

//设置package包名称以及导入依赖的类
package k8sdnssky
import java.util.Properties

import k8sdnssky.App.AppConfig
import org.springframework.boot.SpringApplication

object TestApp {

  def main(args: Array[String]): Unit = {
    val app = new SpringApplication(classOf[AppConfig])
    app.setDefaultProperties(loadDefaultProperties())
    app.run(args: _*)
  }

  private def loadDefaultProperties(): Properties = {
    val props = new Properties()
    val stream = getClass.getResourceAsStream("/app-defaults.properties")
    try {
      props.load(stream)
      props
    } finally {
      stream.close()
    }
  }
} 

//设置package包名称以及导入依赖的类
package pl.mojepanstwo.sap.toakoma

import org.springframework.boot.SpringApplication
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.batch.core.launch.JobLauncher
import org.springframework.batch.core.Job
import org.springframework.batch.core.JobParametersBuilder
import pl.mojepanstwo.sap.toakoma.jobs.Isap2AkomaJob

@SpringBootApplication
class Application

object Main {
  def main(args: Array[String]): Unit = {
    if(!Cli.parseArgs(args)) {
      Cli.printHelp
      return
    }

    try {
      val ctx = SpringApplication.run(classOf[Application])
      val jobLauncher = ctx.getBean(classOf[JobLauncher])

      if(Cli.JOB.ISAP_2_AKOMA.toString == Cli.args.getOptionValue(Cli.OPT.command.toString)) {
        val pdf2XmlJob = ctx.getBean(Isap2AkomaJob.NAME, classOf[Job])
        val jobParameters = new JobParametersBuilder().addString(Cli.OPT.id.toString,
                                                                 Cli.args.getOptionValue(Cli.OPT.id.toString))
                                                      .toJobParameters()
        val jobExecution = jobLauncher.run(pdf2XmlJob, jobParameters)
      }

//      if(Cli.JOB.XML_2_DB.toString == Cli.args.getOptionValue(Cli.OPT.command.toString)) {
//        val pdf2XmlJob = ctx.getBean(Xml2DbJob.NAME, classOf[Job])
//        val jobParameters = new JobParametersBuilder().toJobParameters()
//        val jobExecution = jobLauncher.run(pdf2XmlJob, jobParameters)
//      }
    } catch {
      case e:
        Throwable => e.printStackTrace()
        System.exit(0)
    }
  }
} 

//设置package包名称以及导入依赖的类
package com.kemalates.demo02

import com.kemalates.demo02.service.MyService
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.{CommandLineRunner, SpringApplication}
import org.springframework.boot.autoconfigure.SpringBootApplication


@SpringBootApplication
class MyApp extends CommandLineRunner {

  @Autowired
  val myService: MyService = null

  override def run(args: String*) = {
    myService.sayHello()
  }
}

object MyApp extends App {
  SpringApplication run classOf[MyApp]
} 

//设置package包名称以及导入依赖的类
package k8sslbnginxing
import java.util.Properties

import k8sslbnginxing.App.AppConfig
import org.springframework.boot.SpringApplication

object TestApp {

  def main(args: Array[String]): Unit = {
    val app = new SpringApplication(classOf[AppConfig])
    app.setDefaultProperties(loadDefaultProperties())
    app.run(args: _*)
  }

  private def loadDefaultProperties(): Properties = {
    val props = new Properties()
    val stream = getClass.getResourceAsStream("/app-defaults.properties")
    try {
      props.load(stream)
      props
    } finally {
      stream.close()
    }
  }
} 

//设置package包名称以及导入依赖的类
package com.getindata.examples

import org.springframework.boot.SpringApplication
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.cloud.stream.annotation.{EnableBinding, Input, Output, StreamListener}
import org.springframework.cloud.stream.messaging.{Processor, Sink, Source}
import reactor.core.publisher.Flux

import scala.compat.java8.FunctionConverters._

@SpringBootApplication
@EnableBinding(value = Array(classOf[Processor]))
class ExampleStream {

  @StreamListener
  @Output(Source.OUTPUT)
  def filter(@Input(Sink.INPUT) input: Flux[String]) : Flux[String] = {
    val set = ('A' to 'Z').toSet
    input
      .filter(asJavaPredicate { m => set.contains(m.charAt(0)) })
      .map( asJavaFunction { m => m.toUpperCase } )

  }
}


object ExampleStream extends App {
  SpringApplication.run(classOf[ExampleStream], args :_* )
} 

//设置package包名称以及导入依赖的类
package com.github.yingzhuo.dubbo.example.consumer

import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.module.scala.DefaultScalaModule
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.SpringApplication
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.context.annotation.{Configuration, ImportResource}

object ApplicationBoot extends App {

    SpringApplication.run(classOf[ApplicationBoot], args: _*)

}

@SpringBootApplication
class ApplicationBoot

@Configuration
@ImportResource(Array("classpath*:/dubbo/*.xml"))
class ApplicationBootConfigDubbo

@Configuration
class ApplicationBootConfigJackson {

    @Autowired(required = false)
    def configObjectMapper(objectMapper: ObjectMapper): Unit = {
        objectMapper.registerModules(DefaultScalaModule)
    }

} 

//设置package包名称以及导入依赖的类
package com.getindata.examples.spring

import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.SpringApplication
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty
import org.springframework.context.annotation.Bean


@SpringBootApplication
class ConfigClient @Autowired() (config: Config) {

  @Bean
  @ConditionalOnProperty(name = Array("serializer"), havingValue = "json")
  def jsonSerializer = new JsonSerializer

  @Bean
  @ConditionalOnProperty(name = Array("serializer"), havingValue = "xml")
  def xmlSerializer = new XmlSerializer
}

object ConfigClient extends App {
  SpringApplication.run(classOf[ConfigClient], args: _*)
} 

//设置package包名称以及导入依赖的类
package com.github.tweets

import java.io.File

import com.fasterxml.jackson.databind.ObjectMapper
import com.github.tweets.data.ProjectDataGatherer
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.{ApplicationArguments, ApplicationRunner, SpringApplication}
import org.springframework.context.annotation.ComponentScan

import scala.collection.JavaConversions._

@SpringBootApplication
@ComponentScan(Array("com.github.tweets"))
private class TweetsGatherer extends ApplicationRunner {
  final val ConsoleOutputLocation = "console"

  @Autowired
  val projectDataGatherer: ProjectDataGatherer = null

  @Autowired
  val objectMapper: ObjectMapper = null

  override def run(applicationArguments: ApplicationArguments): Unit = {
    val searchKeyword = expectSearchKeyword(applicationArguments)
    val outputLocation = expectOutputLocation(applicationArguments)

    val result = projectDataGatherer.gatherProjectData(searchKeyword)

    if (outputLocation == ConsoleOutputLocation)
      objectMapper.writeValue(System.out, result)
    else
      objectMapper.writeValue(new File(outputLocation), result)
  }

  private def expectParam(applicationArguments: ApplicationArguments)(paramName: String)(defaultValue: => String) = {
    if (applicationArguments.containsOption(paramName))
      applicationArguments.getOptionValues(paramName).head
    else
      defaultValue
  }

  private def expectSearchKeyword(applicationArguments: ApplicationArguments) =
    expectParam(applicationArguments)("keyword")(throw new RuntimeException("expected 'keyword' argument"))


  private def expectOutputLocation(applicationArguments: ApplicationArguments) =
    expectParam(applicationArguments)("output")(ConsoleOutputLocation)
}

object TweetsGatherer {
  def main(args: Array[String]): Unit =
    SpringApplication.run(classOf[TweetsGatherer], args: _*)
} 

//设置package包名称以及导入依赖的类
package hello

import java.sql.ResultSet

import org.slf4j.Logger
import org.slf4j.LoggerFactory
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.CommandLineRunner
import org.springframework.boot.SpringApplication
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.jdbc.core.{JdbcTemplate, RowMapper}

import collection.JavaConverters._
import scala.collection.mutable
import scala.collection.mutable.ListBuffer

@SpringBootApplication
class Application extends CommandLineRunner {

  @Autowired
  var jdbcTemplate: JdbcTemplate = _


  val log: Logger = LoggerFactory.getLogger(classOf[Application])

  override def run(args: String*): Unit = {
    log.info("Creating tables")
    jdbcTemplate.execute("DROP TABLE customers IF EXISTS")
    jdbcTemplate.execute("CREATE TABLE customers(" +
      "id SERIAL, first_name VARCHAR(255), last_name VARCHAR(255))")

    val splitUpNames = ListBuffer("John Woo", "Jeff Dean", "Josh Bloch", "Josh Long").map(_.split(" "))
    splitUpNames.foreach(name => log.info("Inserting customer record for %s %s".format(name(0), name(1))))

    jdbcTemplate.batchUpdate("INSERT INTO customers(first_name, last_name) VALUES (?,?)", splitUpNames.asInstanceOf[mutable.Buffer[Array[AnyRef]]].asJava)

    log.info("Querying for customer records where first_name = 'Josh':")
    jdbcTemplate.query(
      "SELECT id, first_name, last_name FROM customers WHERE first_name = ?",
      Array("Josh").asInstanceOf[Array[AnyRef]],
      // no Java 8 Lambda support in Scala pre 2.12
      new RowMapper[Customer]{
        override def mapRow(rs: ResultSet, rowNum: Int): Customer = new Customer(rs.getLong("id"), rs.getString("first_name"), rs.getString("last_name"))
      })
      // Works in Scala 2.12
      // (rs: ResultSet, rowNum: Int) => new Customer(rs.getLong("id"), rs.getString("first_name"), rs.getString("last_name"))    )
      .asScala.foreach((customer:Customer) => log.info(customer.toString))
  }
}

object Application extends App {
  SpringApplication.run(classOf[Application], args:_*)
} 

//设置package包名称以及导入依赖的类
package hello

import org.slf4j.{Logger, LoggerFactory}
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.{CommandLineRunner, SpringApplication}
import org.springframework.http.ResponseEntity
import org.springframework.util.concurrent.{ListenableFuture, ListenableFutureCallback, SuccessCallback}
import org.springframework.web.client.{AsyncRestTemplate, RestTemplate}

@SpringBootApplication
class Application extends CommandLineRunner{
  val log: Logger = LoggerFactory.getLogger(classOf[Application])

  override def run(args: String*): Unit = {
    val restTemplate = new RestTemplate()

    // synchronous version
    val quote : Quote =  restTemplate.getForObject("http://gturnquist-quoters.cfapps.io/api/random", classOf[Quote])
    log.info(quote.toString)

    // async version
    val asyncRestTemplate = new AsyncRestTemplate()
    val quoteFuture : ListenableFuture[ResponseEntity[Quote]] =  asyncRestTemplate.getForEntity("http://gturnquist-quoters.cfapps.io/api/random", classOf[Quote])

    quoteFuture.addCallback(new ListenableFutureCallback[ResponseEntity[Quote]]() {
      override def onSuccess(entity : ResponseEntity[Quote]) : Unit = log.info("async: " + entity.getBody.toString)
      override def onFailure(t : Throwable) : Unit = log.error("Async error", t)
    })
  }
}

object Application extends App {
  SpringApplication.run(classOf[Application], args:_*)
} 

//设置package包名称以及导入依赖的类
package hello

import org.springframework.boot.{CommandLineRunner, SpringApplication}
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.jms.core.JmsTemplate
import org.springframework.jms.core.MessageCreator
import org.springframework.util.FileSystemUtils
import javax.jms.{Message, Session, TextMessage}
import java.io.File

import org.springframework.beans.factory.annotation.Autowired

import scala.beans.BeanProperty

@SpringBootApplication
class Application extends CommandLineRunner {

  @BeanProperty
  @Autowired
  val jmsTemplate : JmsTemplate = null

  def run(args: String*) : Unit = {
    // Clean out any ActiveMQ data from a previous run
    FileSystemUtils.deleteRecursively(new File("activemq-data"))

    // create message
    val messageCreator : MessageCreator = new MessageCreator {
      override def createMessage(session: Session): Message = session.createTextMessage("ping!")
    }

    val receiver: Runnable = new Runnable {
      def run(): Unit ={
        // synchronous reception
        System.out.println("====> Waiting for new message.")
        jmsTemplate.setReceiveTimeout(100)
        jmsTemplate.receive("default") match {
          case m:TextMessage => println("====> Synchronous reception: " + m.getText)
          case _ => println("====> Synchronous reception: No message received")
        }
      }
    }

    new Thread(receiver).start()

    // Send a message
    System.out.println("====> Sending a new message.")
    jmsTemplate.send("default", messageCreator)
  }
}

object Application extends App {
  SpringApplication.run(classOf[Application], args:_*)
}