maven整合ssh3启动出现LogManager NoClassDefFoundError错误

Question

maven整合ssh3启动出现错误java.lang.NoClassDefFoundError: Could not initialize class org.apache.log4j.LogManager
上网搜了一下，都说没加入log4j的包，但我明明加入进去了啊
slf4j-api， slf4j-log4j12， commons-logging， log4j 都加了，还是报错
下面是我的错误信息和pom.xml

Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.log4j.LogManager

    at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:73)

    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:209)

    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:221)

    at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:152)

    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:126)

    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:104)

    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newConfiguration(LocalSessionFactoryBean.java:813)

    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:549)

    at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)

    ... 52 more

<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.cms</groupId>

  <artifactId>cms</artifactId>

  <packaging>war</packaging>

  <version>1.0</version>

  <name>gdcms Maven Webapp</name>

    <properties>

        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <spring.version>3.0.2.RELEASE</spring.version>

        <slf4j.version>1.5.6</slf4j.version>

        <aspectj.version>1.6.12</aspectj.version>

        <struts2.version>2.3.15.1</struts2.version>

        <hibernate.version>3.3.2.GA</hibernate.version>

    </properties>

  <dependencies>

        <dependency>

            <groupId>mysql</groupId>

            <artifactId>mysql-connector-java</artifactId>

            <version>5.1.26</version>

        </dependency>

        <dependency>

            <groupId>ojdbc</groupId>

            <artifactId>ojdbc</artifactId>

            <version>14</version>

        </dependency>

        <!-- struts2的核心包，其依赖包会自动下载 -->


        <dependency>


            <groupId>org.apache.struts</groupId>


            <artifactId>struts2-core</artifactId>


            <version>${struts2.version}</version>


        </dependency>

       <dependency>


            <groupId>org.apache.struts</groupId>


            <artifactId>struts2-json-plugin</artifactId>


            <version>${struts2.version}</version>


        </dependency>

        <!-- struts2与spring的整合插件 -->


        <dependency>


            <groupId>org.apache.struts</groupId>


            <artifactId>struts2-spring-plugin</artifactId>


            <version>${struts2.version}</version>


        </dependency>


        <dependency>

            <groupId>org.apache.struts</groupId>

            <artifactId>struts2-convention-plugin</artifactId>

            <version>${struts2.version}</version>

        </dependency>

        <!-- spring的核心包，其他依赖包会自动下载 -->


        <dependency>


            <groupId>org.springframework</groupId>


            <artifactId>spring-core</artifactId>


            <version>${spring.version}</version>


        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-context-support</artifactId>

            <version>${spring.version}</version>

        </dependency>


        <!-- 使用spring的aop，aop要依赖aspectjweaver -->


        <dependency>


            <groupId>org.springframework</groupId>


            <artifactId>spring-aop</artifactId>


            <version>${spring.version}</version>


        </dependency>

        <dependency> 

         <groupId>org.springframework</groupId> 

         <artifactId>spring-aspects</artifactId> 

         <version>${spring.version}</version> 

        </dependency>

        <dependency>


            <groupId>org.aspectj</groupId>


            <artifactId>aspectjweaver</artifactId>


            <version>${aspectj.version}</version>


        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-jdbc</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>commons-dbcp</groupId>

            <artifactId>commons-dbcp</artifactId>

            <version>1.3</version>

        </dependency>

        <!-- 使用这里的工具类对字符串进行MD5加密 -->


        <dependency>


            <groupId>commons-codec</groupId>


            <artifactId>commons-codec</artifactId>


            <version>1.7</version>


        </dependency>


         <!-- j2ee web spec -->

        <dependency>

            <groupId>javax.servlet</groupId>

            <artifactId>servlet-api</artifactId>

            <version>2.5</version>

            <scope>provided</scope>

        </dependency>

        <dependency>

            <groupId>javax.servlet.jsp</groupId>

            <artifactId>jsp-api</artifactId>

            <version>2.1</version>

            <scope>provided</scope>

        </dependency>

        <dependency>

            <groupId>javax.servlet</groupId>

            <artifactId>jstl</artifactId>

            <version>1.2</version>

        </dependency>

        <!-- hibernate的核心包，使用hibernate4时报错就改用了hibernate3 -->


        <dependency>


            <groupId>org.hibernate</groupId>


            <artifactId>hibernate-core</artifactId>


            <version>${hibernate.version}</version>


        </dependency>


        <dependency>

            <groupId>org.hibernate</groupId>

            <artifactId>hibernate-annotations</artifactId>

            <version>3.4.0.GA</version>

        </dependency>

        <dependency>

            <groupId>org.hibernate</groupId>

            <artifactId>hibernate-ehcache</artifactId>

            <version>${hibernate.version}</version>

        </dependency>

        <dependency>

            <groupId>org.hibernate</groupId>

            <artifactId>hibernate-jmx</artifactId>

            <version>${hibernate.version}</version>

        </dependency> 

        <!-- spring整合hibernate需要添加上spring的orm的jar包， 由于spring-orm是


              依赖于spring-jdbc的， 所以这里即使不配spring-jdbc，maven也会帮我们


              下载下来这些依赖


         -->


        <dependency>


            <groupId>org.springframework</groupId>


            <artifactId>spring-jdbc</artifactId>


            <version>${spring.version}</version>


        </dependency>


        <dependency>


            <groupId>org.springframework</groupId>


            <artifactId>spring-orm</artifactId>


            <version>${spring.version}</version>


        </dependency>

        <dependency>

            <groupId>commons-dbcp</groupId>

            <artifactId>commons-dbcp</artifactId>

            <version>1.3</version>

        </dependency>

    &lt;dependency&gt;
        &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
        &lt;artifactId&gt;slf4j-api&lt;/artifactId&gt;
        &lt;version&gt;${slf4j.version}&lt;/version&gt;
        &lt;scope&gt;compile&lt;/scope&gt;
    &lt;/dependency&gt;

    &lt;!-- hibernate-core依赖于slf4j-api，而slf4j-api需要一个实现类，这个  
            实现类jar可以是slf4j-nop.jar, slf4j-simple.jar, slf4j-log4j12.jar,   
        slf4j-jdk14.jar ,logback-classic.jar其中之一 --&gt;  
    &lt;dependency&gt;  
        &lt;groupId&gt;org.slf4j&lt;/groupId&gt;  
        &lt;artifactId&gt;slf4j-log4j12&lt;/artifactId&gt;  
        &lt;version&gt;${slf4j.version}&lt;/version&gt;     
    &lt;/dependency&gt; 
   &lt;dependency&gt;
        &lt;groupId&gt;commons-logging&lt;/groupId&gt;
        &lt;artifactId&gt;commons-logging&lt;/artifactId&gt;
        &lt;version&gt;1.1.1&lt;/version&gt;
    &lt;/dependency&gt;
      &lt;!-- log4j日志记录 --&gt; 
      &lt;dependency&gt;  
        &lt;groupId&gt;log4j&lt;/groupId&gt;  
        &lt;artifactId&gt;log4j&lt;/artifactId&gt;  
        &lt;version&gt;1.2.16&lt;/version&gt; 
        &lt;scope&gt;compile&lt;/scope&gt;
    &lt;/dependency&gt;
    &lt;!-- json --&gt;
    &lt;dependency&gt;
        &lt;groupId&gt;net.sf.json-lib&lt;/groupId&gt;
        &lt;artifactId&gt;json-lib&lt;/artifactId&gt;
        &lt;version&gt;2.4&lt;/version&gt;
        &lt;classifier&gt;jdk15&lt;/classifier&gt;
    &lt;/dependency&gt;
    &lt;!-- junit4用来进行单元测试 --&gt; 
  &lt;dependency&gt;
  &lt;groupId&gt;junit&lt;/groupId&gt;
  &lt;artifactId&gt;junit&lt;/artifactId&gt;
  &lt;version&gt;3.8.2&lt;/version&gt;
  &lt;scope&gt;provided&lt;/scope&gt;
&lt;/dependency&gt; 


</dependencies>

  <build>

    <finalName>gdcms</finalName>

    <plugins>

            <plugin>

                <groupId>org.mortbay.jetty</groupId>

                <artifactId>jetty-maven-plugin</artifactId>

                <version>7.1.2.v20100523</version>

                <configuration>

                    <webAppConfig>

                        <contextPath>/cms</contextPath>

                    </webAppConfig>

                    <connectors>

                        <connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">

                          <port>8088</port>

                          <maxIdleTime>60000</maxIdleTime>

                       </connector>

                     </connectors>

                    <!--scanIntervalSeconds>1</scanIntervalSeconds -->

                </configuration>

            </plugin>

            <plugin>

                <!-- Must use java 1.5 or higher for annotations -->

                <groupId>org.apache.maven.plugins</groupId>

                <artifactId>maven-compiler-plugin</artifactId>

                <version>2.1</version>

                <configuration>

                    <source>1.6</source>

                    <target>1.6</target>

                </configuration>

            </plugin>

        </plugins>

  </build>

</project>

Answer 1

这个错误不可能会是没有log4j的jar包导致的，这个提示是初始化LogManager的时候出了问题，不知道你那边有没有更细节的堆栈信息？只依靠目前的信息，只能推测是log4j的版本可能存在冲突，我看了下slf4j-log4j12-1.5.6依赖的log4j应该是1.2.14，你此处使用的是1.2.16，不知道是不是这个引起的