我已经尝试了几个小时让我的项目工作但是EJB部分仍然失败了 java.lang.ClassNotFoundException：org.slf4j.LoggerFactory （我想在我的EJB中输出一些日志）。
项目布局如下：
|-- nnWeb-ear | |-- pom.xml | `-- src | `-- main | |-- application | | `-- META-INF | | `-- MANIFEST.MF | `-- java |-- nnWeb-ejb | |-- pom.xml | `-- src | |-- main | | |-- java | | | `-- com | | | `-- test | | | `-- packaging | | | `-- SimpleStateLess.java | | `-- resources | | |-- logback.xml | | `-- META-INF | | `-- MANIFEST.MF | `-- test | `-- java | `-- com | `-- test | `-- packaging |-- nnWeb-web | |-- pom.xml | `-- src | |-- main | | |-- java | | | `-- com | | | `-- test | | | `-- packaging | | | |-- SimpleEJB.java | | | `-- SimpleServlet.java | | |-- resources | | | `-- logback.xml | | `-- webapp | | |-- index.jsp | | `-- WEB-INF | | `-- sun-web.xml | `-- test | `-- java `-- pom.xml
主要的pom.xml：
<?xml version="1.0" encoding="UTF-8"?>
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.test.packaging</groupId>
<artifactId>nnWeb</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<name>nnWeb</name>
<url>http://maven.apache.org</url>
<modules>
<module>nnWeb-ear</module>
<module>nnWeb-web</module>
<module>nnWeb-ejb</module>
</modules>
</project>
ejb pom.xml：
<?xml version="1.0" encoding="UTF-8"?>
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<artifactId>nnWeb</artifactId>
<groupId>com.test.packaging</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<groupId>com.test.packaging</groupId>
<artifactId>nnWeb-ejb</artifactId>
<packaging>ejb</packaging>
<version>1.0-SNAPSHOT</version>
<name>nnWebEjb</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>0.9.18</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.5.11</version>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<repositories>
<repository>
<id>java.net2</id>
<name>Java.Net Maven2 Repository, hosts the javaee-api dependency</name>
<url>http://download.java.net/maven/2</url>
</repository>
</repositories>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ejb-plugin</artifactId>
<version>2.1</version>
<configuration>
<ejbVersion>3.1</ejbVersion>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>APP-INF/lib</classpathPrefix>
</manifest>
<manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
</archive>
</configuration>
</plugin>
</plugins>
<finalName>nnWeb-ejb</finalName>
</build>
<profiles>
<profile>
<id>endorsed</id>
<activation>
<property>
<name>sun.boot.class.path</name>
</property>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<!-- javaee6 contains upgrades of APIs contained within the JDK itself.
As such these need to be placed on the bootclasspath, rather than classpath of the
compiler.
If you don't make use of these new updated API, you can delete the profile.
On non-SUN jdk, you will need to create a similar profile for your jdk, with the similar property as sun.boot.class.path in Sun's JDK.-->
<compilerArguments>
<bootclasspath>${settings.localRepository}/javax/javaee-endorsed-api/6.0/javaee-endorsed-api-6.0.jar${path.separator}${sun.boot.class.path}</bootclasspath>
</compilerArguments>
</configuration>
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-endorsed-api</artifactId>
<version>6.0</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<properties>
<netbeans.hint.deploy.server>gfv3ee6</netbeans.hint.deploy.server>
</properties>
</project>
耳朵pom.xml：
<?xml version="1.0" encoding="UTF-8"?>
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<artifactId>nnWeb</artifactId>
<groupId>com.test.packaging</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<groupId>com.test.packaging</groupId>
<artifactId>nnWeb-ear</artifactId>
<packaging>ear</packaging>
<version>1.0-SNAPSHOT</version>
<name>nnWebEar</name>
<url>http://maven.apache.org</url>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ear-plugin</artifactId>
<version>2.4</version>
<configuration>
<version>6</version>
<!-- <archive>
<manifest>
<addClasspath>true</addClasspath>
</manifest>
</archive>-->
<defaultJavaBundleDir>APP-INF/lib</defaultJavaBundleDir>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>process-classes</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.outputDirectory}/lib</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<finalName>nnWeb-ear</finalName>
</build>
<dependencies>
<dependency>
<groupId>com.test.packaging</groupId>
<artifactId>nnWeb-ejb</artifactId>
<version>1.0-SNAPSHOT</version>
<type>ejb</type>
</dependency>
<dependency>
<groupId>com.test.packaging</groupId>
<artifactId>nnWeb-web</artifactId>
<version>1.0-SNAPSHOT</version>
<type>war</type>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>0.9.18</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.5.11</version>
</dependency>
<dependency>
<groupId>com.googlecode.sli4j</groupId>
<artifactId>sli4j-slf4j-jdk14</artifactId>
<version>2.0</version>
</dependency>
</dependencies>
<properties>
<netbeans.hint.deploy.server>gfv3ee6</netbeans.hint.deploy.server>
</properties>
</project>
和SimpleStateless.java EJB：
package com.test.packaging;
import javax.ejb.Stateless;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Stateless
public class SimpleStateLess {
private static Logger logger = LoggerFactory.getLogger(SimpleStateLess.class);
public void constructLog(){
logger.debug("Finally got logging working in ejb module :)");
}
}
打包后，ear文件如下：
|-- APP-INF | `-- lib | |-- aopalliance-1.0.jar | |-- guice-2.0.jar | |-- logback-classic-0.9.18.jar | |-- logback-core-0.9.18.jar | |-- slf4j-api-1.5.11.jar | |-- slf4j-jdk14-1.5.10.jar | |-- sli4j-core-2.0.jar | `-- sli4j-slf4j-jdk14-2.0.jar |-- META-INF | |-- application.xml | |-- MANIFEST.MF | `-- maven | `-- com.test.packaging | `-- nnWeb-ear | |-- pom.properties | `-- pom.xml |-- ngWeb-web.war `-- nnWeb-ejb.jar
和ejb.jar清单是：
Manifest-Version: 1.0 Archiver-Version: Plexus Archiver Created-By: Apache Maven Built-By: dev Build-Jdk: 1.6.0_21 Class-Path: APP-INF/lib/logback-classic-0.9.18.jar APP-INF/lib/logback -core-0.9.18.jar APP-INF/lib/slf4j-api-1.5.11.jar
请注意，从war包中进行日志记录（使用WEB-INF / lib目录进行Servlet日志记录+ EJB日志记录）并根据我的发现，在部署ear时（如果清单正确），登录EJB应该有效
我做错了什么？
答案 0 :(得分：0)
查看展开的ear包装和ejb.jar清单
nnWeb-ejb.jar与APP-INF位于同一层次结构中。
因此，以下Class-Path条目无效......
Class-Path: APP-INF/lib/logback-classic-0.9.18.jar APP-INF/lib/logback
-core-0.9.18.jar APP-INF/lib/slf4j-api-1.5.11.jar
他们需要
Class-Path: ../APP-INF/lib/logback-classic-0.9.18.jar ../APP-INF/lib/logback
-core-0.9.18.jar ../APP-INF/lib/slf4j-api-1.5.11.jar