DropWizard初めの第一歩

Java DropWizard

私はここで盛大に躓きました(笑)
http://www.dropwizard.io/ の「Getting Started」を見ても全然はじめられません。最初に「Maven」という単語が出てきて読む気を無くしますｗしかも英語だし。
というわけで、以下のようにしてまずはサンプルプロジェクトを作ってみましょう

  • maven3の最新版(3.3.3)をインストール
  • % mvn archetype:generate > a.txt
  • と実行して、dropwizard 関連のプロジェクトを探す
    • 9: remote -> br.com.ingenieux:elasticbeanstalk-docker-dropwizard-webapp-archetype (A Maven Archetype for Publishing Dropwizard-based Services on AWS' Elastic Beanstalk Service)
    • 311: remote -> eu.clarin.weblicht:weblicht-nentities-ws-dw-archetype (An archetype for creating weblicht web services with dropwizard. This archetype provides debian and redhat packaging.)
    • 335: remote -> io.dropwizard.archetypes:java-simple (-)
    • 1360: remote -> pl.najda:dw-archetype (Archetype for building an initial structure of directories and files for Dropwizard web services. Contains a simple web service (available at http://localhost:8082/hello-world) with sources - to simplify development.)
  • 335で作りましょう。以下の赤字だけ入力して、後はEnterキーを連打。



% mvn archetype:generate

Choose a number or apply filter (format: [groupId:]artifactId, case sensitive contains): 628: 335

Choose io.dropwizard.archetypes:java-simple version:

1: 0.8.0-rc2

2: 0.8.0-rc3

3: 0.8.0-rc4

4: 0.8.0-rc5

5: 0.8.0

6: 0.8.1-rc2

7: 0.8.1

8: 0.8.2

9: 0.9.0-rc1

10: 0.9.0-rc2

11: 0.9.0-rc3

Choose a number: 11: 8

Define value for property 'groupId': : Sample001

Define value for property 'artifactId': : Sample001

Define value for property 'version':  1.0-SNAPSHOT: :

Define value for property 'package':  Sample001: :

[INFO] Using property: description = null

Define value for property 'name': : Sample001

[INFO] Using property: shaded = true

Confirm properties configuration:

groupId: Sample001

artifactId: Sample001

version: 1.0-SNAPSHOT

package: Sample001

description: null

name: Sample001

shaded: true

 Y: :

[INFO] ----------------------------------------------------------------------------

[INFO] Using following parameters for creating project from Archetype: java-simple:0.8.2

[INFO] ----------------------------------------------------------------------------

[INFO] Parameter: groupId, Value: Sample001

[INFO] Parameter: artifactId, Value: Sample001

[INFO] Parameter: version, Value: 1.0-SNAPSHOT

[INFO] Parameter: package, Value: Sample001

[INFO] Parameter: packageInPathFormat, Value: Sample001

[INFO] Parameter: package, Value: Sample001

[INFO] Parameter: version, Value: 1.0-SNAPSHOT

[INFO] Parameter: name, Value: Sample001

[INFO] Parameter: groupId, Value: Sample001

[INFO] Parameter: description, Value: null

[INFO] Parameter: shaded, Value: true

[INFO] Parameter: artifactId, Value: Sample001

[INFO] project created from Archetype in dir: C:\work\src\maven\Sample001

[INFO] ------------------------------------------------------------------------

[INFO] BUILD SUCCESS

[INFO] ------------------------------------------------------------------------

[INFO] Total time: 01:35 min

[INFO] Finished at: 2015-07-26T17:24:25+09:00

[INFO] Final Memory: 10M/26M

[INFO] ------------------------------------------------------------------------

  • すると、Sample001 フォルダが作られて、その中に色々なファイルが作られていますので、ビルドして実行してみましょう
  • % cd Sample001
  • % mvn package
  • % java -jar target\Sample001-1.0-SNAPSHOT.jar server
  • 無事起動したら(何やらWARNINGはいっぱい出ますけど気にしない)「http://localhost:8081/」にアクセスしてみましょう



Operational Menu

・Metrics

・Ping

・Threads

・Healthcheck
ってのが出ればとりあえず成功。CTRL+Cで終了できます。