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用Maven打包成EAR部署JBoss

       基于原理的架构里面,考虑这次升级版本,可谓是一步一个脚印的向上走啊,可以说步步为坎,别人的知识,和自己的知识,相差很多啊,什么都懂点,但是具体没有使用,就理解不深刻了,心有余而力不足,所以一切我们自己来操作吧,可谓是体会深刻了,各种错,各种bug,是最好的学习进步的见证吧,


       最近的升级Jboss版本到EAP6.2,所谓是版本升级,内容新增很多啊,比5.1改观不少,现在我们遇到的问题是注入到EJB容器内部的实体在最后的持久化的数据库的时候报错了,实体找不到,报错如下:


<span style="font-size:18px;">JBWEB000065: HTTP Status 500 - Request processing failed; nested exception is javax.ejb.EJBTransactionRolledbackException: Unknown entity: Jc.entity.Student
</span>

在尝试几种方法解决,我做了使用达成EAR包的形成测试,具体步骤总结分享(0、1、2加载顺序)

0:封装了mgr接口和实体


1:

2:web层

我要把这三个包打成一个eao包,把相互的依赖关系打到一起,参考官网


新建一个Mavne Project,写入pom文件内容

<span style="font-size:18px;"><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>
	<groupId>com.tgb</groupId>
	<artifactId>lishehetestear</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>ear</packaging>
	<build>
		<plugins>
			<plugin>
				<artifactId>maven-ear-plugin</artifactId>
				<version>2.9</version>
			</plugin>
		</plugins>
	</build>
</project></span>

如果pom文件报错,那么安装一下 m2e-wtp这个插件,插件地址


插件装好之后,需要把需要打入的jar和war包都添加到里面来


<span style="font-size:18px;"><dependencies>
		<dependency>
			<groupId>com.tgb</groupId>
			<artifactId>lishehe_api</artifactId>
			<version>0.0.1-SNAPSHOT</version>
			<type>jar</type>
		</dependency>

		<dependency>
			<groupId>com.tgb</groupId>
			<artifactId>lishehe_core</artifactId>
			<version>0.0.1-SNAPSHOT</version>
			<type>jar</type>
		</dependency>
		<dependency>
			<groupId>com.tgb</groupId>
			<artifactId>lishehe_war</artifactId>
			<version>0.0.1-SNAPSHOT</version>
			<type>war</type>
		</dependency>
	</dependencies></span>



然后运行mvn的命令    ear: generate-application-xml,此命令是用来生成ear中的部署描述符的。


成功之后运行mvn的命令,ear:ear,,成功后,从target开发打包好的ear,发现要打包的几个包外,几个依赖的包也都在里面,ear提供的插件Creatin Skinny WARS,



<span style="font-size:18px;"><span style="font-size:18px;"><plugin>
	<artifactId>maven-ear-plugin</artifactId>
	<version>2.9</version>
	<configuration>
		<packagingIncludes>META-INF/**,**/lishehe_*.jar,**/lishehe_*.war</packagingIncludes>
	</configuration>
</plugin></span></span>

 注:上面这句话是说要将META-INF下(有application.xml等)及所有的lishehe开头的jar、war都打包进来。

       现在再来看,这样生成的ear包如下,现在就只剩下我们需要部署的jarwar



现在可以打成EAR包了,当我加载的时候出现了问题,空指针,Jboss按照字母加载,需要改成按照一定的依赖关系加载


只是在pom中对JBoss进行配置,还得将那些jar加载顺序写到application.xml文件(用ear:generate-application-xml生成的)里面。

<span style="font-size:18px;"><span style="font-size:18px;"><plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-ear-plugin</artifactId>
				<version>2.9</version>
				<configuration>
					<packagingIncludes>META-INF/**,**/lishehe_*.jar,**/lihehe_*.war</packagingIncludes>
					<jboss>
						<version>5</version>
						<module-order>strict</module-order>
					</jboss>
					<modules>
						<jarModule>
							<groupId>com.tgb</groupId>
							<artifactId>lishehe_api</artifactId>
							<includeInApplicationXml>true</includeInApplicationXml>
						</jarModule>
						<jarModule>
							<groupId>com.tgb</groupId>
							<artifactId>lishehe_core</artifactId>
							<includeInApplicationXml>true</includeInApplicationXml>
						</jarModule>
						<webModule>
							<groupId>com.tgb</groupId>
							<artifactId>lishehe_war</artifactId>
							
						</webModule>
					</modules>


				</configuration>

			</plugin>
		</plugins></span></span>
application.xml中文件生成是

<span style="font-size:18px;"><span style="font-size:18px;"><?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE application PUBLIC
	"-//Sun Microsystems, Inc.//DTD J2EE Application 1.3//EN"
	"http://java.sun.com/dtd/application_1_3.dtd">
<application>
  <display-name>lishehetestear</display-name>
  <module>
    <java>lishehe_api-0.0.1-SNAPSHOT.jar</java>
  </module>
  <module>
    <java>lishehe_core-0.0.1-SNAPSHOT.jar</java>
  </module>
  <module>
    <web>
      <web-uri>lishehe_war-0.0.1-SNAPSHOT.war</web-uri>
      <context-root>/lishehe_war</context-root>
    </web>
  </module>
</application></span></span>

jboss-app.xml内容

<span style="font-size:18px;"><span style="font-size:18px;"><?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jboss-app PUBLIC
	"-//JBoss//DTD Java EE Application 5.0//EN"
	"http://www.jboss.org/j2ee/dtd/jboss-app_5_0.dtd">
<jboss-app>
  <module-order>strict</module-order>
</jboss-app></span></span>

全的pom内容

<span style="font-size:18px;"><span style="font-size:18px;"><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>
	<groupId>com.tgb</groupId>
	<artifactId>lishehetestear</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>ear</packaging>
	<url>http://maven.apache.org</url>



	<dependencies>
		<dependency>
			<groupId>com.tgb</groupId>
			<artifactId>lishehe_api</artifactId>
			<version>0.0.1-SNAPSHOT</version>
			<type>jar</type>
		</dependency>

		<dependency>
			<groupId>com.tgb</groupId>
			<artifactId>lishehe_core</artifactId>
			<version>0.0.1-SNAPSHOT</version>
			<type>jar</type>
		</dependency>
		<dependency>
			<groupId>com.tgb</groupId>
			<artifactId>lishehe_war</artifactId>
			<version>0.0.1-SNAPSHOT</version>
			<type>war</type>
		</dependency>
	</dependencies>
	<build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-ear-plugin</artifactId>
				<version>2.9</version>
				<configuration>
					<packagingIncludes>META-INF/**,**/lishehe_*.jar,**/lihehe_*.war</packagingIncludes>
					<jboss>
						<version>5</version>
						<module-order>strict</module-order>
					</jboss>
					<modules>
						<jarModule>
							<groupId>com.tgb</groupId>
							<artifactId>lishehe_api</artifactId>
							<includeInApplicationXml>true</includeInApplicationXml>
						</jarModule>
						<jarModule>
							<groupId>com.tgb</groupId>
							<artifactId>lishehe_core</artifactId>
							<includeInApplicationXml>true</includeInApplicationXml>
						</jarModule>
						<webModule>
							<groupId>com.tgb</groupId>
							<artifactId>lishehe_war</artifactId>
							
						</webModule>
					</modules>


				</configuration>

			</plugin>
		</plugins>
	</build>

</project></span></span>


剩下的就是部署了,直接扔到Jboss里面即可,


总结

       这个时候深刻体会到英语很重要啊,细心的深入的去学习,查资料(外网的靠谱)。

用Maven打包成EAR部署JBoss