找不到Apache Commons / lang / StringUtils

时间:2015-01-08 12:10:07

标签: java maven jboss

众所周知,JBoss AS 7.0.0提供了一些开箱即用的apache-commons依赖项。它们位于

$JBOSS_HOME$\modules\org\apache\commons\lang\main

所以,我尝试通过在pom.xml中声明以下依赖项来使用这些提供的依赖项:

<dependency>
    <groupId>commons-lang</groupId>
    <artifactId>commons-lang</artifactId>
    <version>${commons.version}</version>
    <scope>provided</scope>
</dependency>

当我尝试使用它的类时,我得到了:

java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils
    com.badmitrii.EmployeeListController.getEmployees(EmployeeListController.java:39)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:483)
    org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
    org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:777)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:706)
    org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
    org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:847)

当然,如果我将scope标记替换为compile,它就可以正常工作。但是使用嵌入服务器的库有什么问题?可能还需要其他配置吗?

1 个答案:

答案 0 :(得分:1)

尝试在META-INF / MANIFEST.MF文件的Dependencies部分添加org.apache.commons.lang。

我认为问题是你没有声明依赖,所以JBoss没有为你加载这个类..

希望它有所帮助!

编辑:你可以使用maven-war-plugin或maven-ear-plugin通过maven设置它。这是一个例子:

<plugin>
    <artifactId>maven-war-plugin</artifactId>
    <version>2.1.1</version>
    <configuration>
        <failOnMissingWebXml>false</failOnMissingWebXml>

        <!-- Maven will append the version to the finalName (which is the name 
            given to the generated war, and hence the context root) -->
        <warName>${project.artifactId}</warName>

        <archive>
            <manifestEntries>
                <Dependencies>org.apache.commons.lang</Dependencies>
            </manifestEntries>
        </archive>
    </configuration>
</plugin>