EJB封裝應(yīng)用

使用 EJB 3.0 的包裝應(yīng)用程序要求有類似于 J2EE 平臺。Ejb 組件打包成 jar 文件作為模塊和打包到 ear 文件作為應(yīng)用企業(yè)存檔。主要三個組件的企業(yè)應(yīng)用程序如下。

• jar - Java應(yīng)用程序歸檔，包含EJB模塊，EJB客戶端模塊和實(shí)用模塊。

• war - Web應(yīng)用程序歸檔，包含Web模塊。

• ear -企業(yè)應(yīng)用程序歸檔，包含jar和war模塊。

在NetBeans很容易創(chuàng)建、開發(fā)、計劃和部署J2EE應(yīng)用程序。

在NetBeans IDE中，選擇File > New Project > 文件>新建項(xiàng)目>類別。選擇項(xiàng)目類型，Java EE中 ，項(xiàng)目類型為Enterprise Application企業(yè)應(yīng)用程序 。單擊Next >下一步> button.Enter項(xiàng)目名稱和位置。單擊Finish>按鈕。我們已經(jīng)選擇名稱為EnterpriseApplicaton。

選擇服務(wù)器和設(shè)置。繼續(xù)Create EJB Module 創(chuàng)建EJB模塊和Create Web Application Module 創(chuàng)建Web應(yīng)用程序模塊所提供的默認(rèn)名稱檢查。點(diǎn)擊完成按鈕。 NetBeans 將在項(xiàng)目窗口中創(chuàng)建以下結(jié)構(gòu)

右鍵單擊項(xiàng)目Enterprise Application企業(yè)應(yīng)用程序項(xiàng)目資源管理器，選擇生成。

ant -f D:SVNEnterpriseApplication dist
pre-init:
init-private:
init-userdir:
init-user:
init-project:
do-init:
post-init:
init-check:
init:
deps-jar:
deps-j2ee-archive:
EnterpriseApplication-ejb.init:
EnterpriseApplication-ejb.deps-jar:
EnterpriseApplication-ejb.compile:
EnterpriseApplication-ejb.library-inclusion-in-manifest:

Building jar: D:SVNEnterpriseApplicationEnterpriseApplication-ejbdistEnterpriseApplication-ejb.jar

EnterpriseApplication-ejb.dist-ear:
EnterpriseApplication-war.init:
EnterpriseApplication-war.deps-module-jar:
EnterpriseApplication-war.deps-ear-jar:
EnterpriseApplication-ejb.init:
EnterpriseApplication-ejb.deps-jar:
EnterpriseApplication-ejb.compile:
EnterpriseApplication-ejb.library-inclusion-in-manifest:
EnterpriseApplication-ejb.dist-ear:
EnterpriseApplication-war.deps-jar:
EnterpriseApplication-war.library-inclusion-in-archive:
EnterpriseApplication-war.library-inclusion-in-manifest:
EnterpriseApplication-war.compile:
EnterpriseApplication-war.compile-jsps:
EnterpriseApplication-war.do-ear-dist:

Building jar: D:SVNEnterpriseApplicationEnterpriseApplication-wardistEnterpriseApplication-war.war

EnterpriseApplication-war.dist-ear:
pre-pre-compile:
pre-compile:
Copying 1 file to D:SVNEnterpriseApplicationuild
Copying 1 file to D:SVNEnterpriseApplicationuild
do-compile:
post-compile:
compile:
pre-dist:
do-dist-without-manifest:
do-dist-with-manifest:

Building jar: D:SVNEnterpriseApplicationdistEnterpriseApplication.ear

post-dist:
dist:
BUILD SUCCESSFUL (total time: 1 second)

在這里，你可以看到，Netbeans的首先準(zhǔn)備jar，然后war最后ear文件Jar和War文件。每個jar、war和ear文件帶有一個meta - inf文件夾根據(jù)J2EE規(guī)范元數(shù)據(jù)。