Question

我有一个构建api，ejb和核心java模块的ear构建pom。但是当我部署并启动JBoss时，它会使用耳朵名称部署ejb JNDI名称。例如，JNDI名称为server-component-ear-0.0.1-SNAPSHOT/MyServiceBean/local

这里MyServiceBean是我要从JNDI视图中查找的ejb。它在ejb模块中。我的最后一个名字是server-component-ear-0.0.1-SNAPSHOT.ear 其中包含

-lib
-META-INF
-server-component-ejb-0.0.1-SNAPSHOT.jar
-server-component-core-0.0.1-SNAPSHOT.jar

听到我的ear pom文件

    <parent>
    <groupId>xxx.group.abc</groupId>
    <artifactId>component-parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    </parent>
    <name>COMPONENT EAR</name>
    <artifactId>server-component-ear</artifactId>
    <packaging>ear</packaging>
    <dependencies>
      <dependency>
        <groupId>xxx.group.abc</groupId>
        <artifactId>component-ejb</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <type>ejb</type>
         <exclusions>
            <exclusion>
                <groupId>xxx.group.xyz</groupId>
                <artifactId>some.artifact</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>xxx.group.abc</groupId>
        <artifactId>server-component-core</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <type>jar</type>
    </dependency>
   </dependencies>
   <build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-ear-plugin</artifactId>
            <version>2.8</version>
            <configuration>
                <defaultLibBundleDir>lib</defaultLibBundleDir>
                 <modules>
                     <jarModule>
                        <groupId>xxx.group.abc</groupId>
                        <artifactId>component-core</artifactId>
                        <bundleDir>/</bundleDir>
                        <includeInApplicationXml>true</includeInApplicationXml>
                    </jarModule>
                 </modules>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-resources-plugin</artifactId>
            <version>2.6</version>
        </plugin>
    </plugins>
     <pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.eclipse.m2e</groupId>
                <artifactId>lifecycle-mapping</artifactId>
                <version>1.0.0</version>
                  <configuration>
                    <lifecycleMappingMetadata>
                        <pluginExecutions>
                            <pluginExecution>
                                <pluginExecutionFilter>
                                    <groupId>org.apache.maven.plugins</groupId>
                                    <artifactId>maven-ear-plugin</artifactId>
                                    <versionRange>[2.8,)</versionRange>
                                     <goals>
                                        <goal>generate-application-xml</goal>
                                    </goals>
                                </pluginExecutionFilter>
                                <action>
                                    <ignore></ignore>
                                </action>
                            </pluginExecution>
                        </pluginExecutions>
                    </lifecycleMappingMetadata>
                </configuration>
            </plugin>
           </plugins>
         </pluginManagement>
    </build>

我用来运行pom以创建maven build的服务器组件ear文件。

<name>SERVER COMPONENT</name>

<groupId>xxx.group.abc</groupId>
<artifactId>server-component-parent</artifactId>
<packaging>pom</packaging>
<version>0.0.1-SNAPSHOT</version>

<modules>
    <module>api</module>
    <module>ejb</module>
    <module>core</module>
    <module>ear</module>
</modules>
<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.3</version>
        </dependency>
    </dependencies>
</dependencyManagement>
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-release-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-source-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-javadoc-plugin</artifactId>
        </plugin>
    </plugins>
    <pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.0</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-source-plugin</artifactId>
                <version>2.2.1</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>jar</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-javadoc-plugin</artifactId>
                <version>2.9</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>jar</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </pluginManagement>
</build>

以下是application.xml

中的ear

<?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>server-component-ear</display-name>
  <module>
     <java>server-component-core-0.0.1-SNAPSHOT.jar</java>
  </module>
  <module>
     <ejb>server-component-ejb-0.0.1-SNAPSHOT.jar</ejb>
  </module>
</application>

如何让它工作，因为JNDI名称应该只是MyServiceBean/local

Answer 1

我不知道我是否完全理解您的问题，但请记住，当部署会话bean时，服务器使用预定义语法将其绑定到JNDI名称。

似乎您正在使用ejb 3.1，如果是这种情况，您可以看到完整的语法描述here（参见第4章，4.4全局JNDI访问。）

JBoss作为符合Java EE的服务器遵循规范所说的，这就是为什么组件以这种方式绑定的原因。据我所知，您无法更改JNDI绑定名称语法。

Answer 2

我能解决这个问题。 This link帮助我尝试了。我所做的是将前面的"java:module/"添加到jndi查找中，以便从bean开始读取module。该链接将有助于更清楚地理解它。另请注意，我最后删除了/local。现在我只查找bean。 IService interface由两个不同的beans使用，现在没有任何问题。

这是我从Java SE client查找bean的方法。

String   jndi = "MyService" // this is a run time parameter. Can be 'MyAnotherService' 
IService bean = (IService) initialContext.lookup("java:module/"+jndi+"Bean");

我没有更改bean课程中的任何注释。因为没有什么能改变jndi的名字。：（

 @Local
 public interface IService { // interface}


 @Stateless
 public class MyServiceBean implements IService { // bean 1}


 @Stateless
 public class MyAnotherServiceBean implements IService { // bean 2}

现在我不依赖于耳朵或我的ejb jar名称。感谢加布里埃尔的帮助!!!

Answer 3

我能够以另一种方式克服这个问题。我已经配置了maven ear插件来创建无版本模块。

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-ear-plugin</artifactId>
    <version>2.3.2</version>
    <configuration>
        <version>5</version>
        <defaultLibBundleDir>/lib</defaultLibBundleDir>
        <generateApplicationXml>true</generateApplicationXml>
        <finalName>appName-ear</finalName>
        <modules>
            <ejbModule>
                <groupId>com.abc</groupId>
                <artifactId>appName-ejb</artifactId>
                <bundleFileName>appName-ejb</bundleFileName>
            </ejbModule>
            <webModule>
                <groupId>com.abc</groupId>
                <artifactId>appName-web</artifactId>
                <bundleFileName>appName-web</bundleFileName>
            </webModule>
        </modules>
    </configuration>
</plugin>

如何从JNDI名称中删除ear name

3 个答案: