Ant，Tomcat构建错误：java.lang.NoClassDefFoundError：org / apache / tomcat / util / buf / B2CConverter

Tomcat Version: 7.0.20

Tomcat版本:7.0.20

I am attempting to work my way through the following Spring MVC tutorial: http://static.springsource.org/docs/Spring-MVC-step-by-step/part1.html

我试图通过以下Spring MVC教程:http://static.springsource.org/docs/Spring-MVC-step-by-step/part1.html

In this tutorial, an ant build script is setup to deploy to tomcat using the manager. However, I run into some problems when I try to run any of the tomcat tasks.

在本教程中,将使用管理器设置ant构建脚本以部署到tomcat。但是,当我尝试运行任何tomcat任务时,我遇到了一些问题。

First off, in the tutorial, they still use org.apache.catalina.ant.InstallTask which is deprecated, so I changed to org.apache.catalina.ant.DeployTask.

首先,在教程中,他们仍然使用不推荐使用的org.apache.catalina.ant.InstallTask​​,因此我更改为org.apache.catalina.ant.DeployTask。

Now the problem is that when trying to run the Tomcat tasks I get:

现在的问题是,当我尝试运行Tomcat任务时,我得到:

java.lang.NoClassDefFoundError: org/apache/tomcat/util/buf/B2CConverter
    at org.apache.catalina.util.Base64.encode(Base64.java:177)
    at org.apache.catalina.ant.AbstractCatalinaTask.execute(AbstractCatalinaTask.java:204)
    at org.apache.catalina.ant.AbstractCatalinaTask.execute(AbstractCatalinaTask.java:150)
    at org.apache.catalina.ant.ReloadTask.execute(ReloadTask.java:45)
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    at org.apache.tools.ant.Task.perform(Task.java:348)
    at org.apache.tools.ant.Target.execute(Target.java:390)
    at org.apache.tools.ant.Target.performTasks(Target.java:411)
    at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
    at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
    at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
    at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
    at org.apache.tools.ant.Main.runBuild(Main.java:809)
    at org.apache.tools.ant.Main.startAnt(Main.java:217)
    at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
    at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)
 Caused by: java.lang.ClassNotFoundException: org.apache.tomcat.util.buf.B2CConverter
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    ... 21 more

So I Googled around a bit and found some information stating that tomcat-utils.jar should be in the class path so I added that into the fileset with the catalina-ant.jar but apparently the org.apache.tomcat.util.buf.B2CConverter class is not in there.

所以我用Google搜索了一下,发现一些信息表明tomcat-utils.jar应该在类路径中,所以我用catalina-ant.jar将其添加到文件集中,但显然是org.apache.tomcat.util.buf。 B2CConverter类不在那里。

So next I started probing the jars with jar -tf to find out if any contained the class. I found out that tomcat-coyote.jar had the class. Even with including this in the fileset, the problem is not resolved.

接下来我开始用jar -tf探测罐子,看看是否包含了这个类。我发现tomcat-coyote.jar有这个类。即使将其包含在文件集中,问题也无法解决。

Does anyone have any ideas?

有没有人有任何想法?

16 个解决方案

#1

I got this working by changing the classpath to

通过将类路径更改为,我得到了这个工作

<path id="catalina-ant-classpath">
    <!-- We need the Catalina jars for Tomcat -->
    <!--  * for other app servers - check the docs --> 
    <fileset dir="${appserver.lib}">
        <include name="catalina-ant.jar"/>
        <include name="tomcat-coyote.jar"/>
        <include name="tomcat-util.jar"/>
    </fileset>
    <fileset dir="${appserver.home}/bin">
                <include name="tomcat-juli.jar"/>
    </fileset>
</path>

#2

Like Jason, I tried Aidan's answer and it did not work. With TomCat 7 the manager interface has changed a little. Instead of using /manager/list in the URL you have to use /manager/text/list. So I changed the list task in build.xml to the following:

像Jason一样,我尝试了Aidan的答案而且没有用。使用TomCat 7,管理器界面发生了一些变化。而不是在URL中使用/ manager / list,您必须使用/ manager / text / list。所以我将build.xml中的list任务更改为以下内容:

<target name="list" description="List Tomcat applications">
    <list url="${tomcat.manager.url}/text"
             username="${tomcat.manager.username}"
             password="${tomcat.manager.password}"/>
</target>

I also had to add the "manager-script" role to my admin user so that it would have the proper privileges for this operation:

我还必须将“manager-script”角色添加到我的管理员用户,以便它具有此操作的适当权限:

  <role rolename="manager-gui"/>
  <role rolename="manager-script"/>
  <user username="admin" password="admin" roles="manager-gui,manager-script"/>

#3

I found the same error when following the same tutorial. I had to make 3 changes so that the targets run correctly.

我在遵循相同的教程时发现了同样的错误。我必须进行3次更改,以便目标正确运行。

First, change the build.xml "list" target to add the /text above mentioned:

首先,更改build.xml“list”目标以添加上面提到的/ text:

<target name="list" description="List Tomcat applications">
    <list url="${tomcat.manager.url}/text"
          username="${tomcat.manager.username}"
          password="${tomcat.manager.password}"/>
</target>

Second, change the catalina ant classpath:

第二,改变catalina ant类路径:

<path id="catalina-ant-classpath">
    <fileset dir="${appserver.home}/lib">
        <include name="catalina-ant.jar"/>
        <include name="tomcat-coyote.jar"/>
        <include name="tomcat-util.jar"/>
    </fileset>
    <fileset dir="${appserver.home}/bin">
        <include name="tomcat-juli.jar"/>
    </fileset>
</path>

And finally, add this to the tomcat-users.xml file:

最后,将其添加到tomcat-users.xml文件中:

<role rolename="manager-script"/>
  <user username="tomcat" password="s3cret" roles="manager-gui,tomcat,manager-script"/>

And then it worked for me =)

然后它对我有用=)

#4

This seemed to work for me (Tomcat 7.0.21, OS X):

这似乎对我有用(Tomcat 7.0.21,OS X):

<path id="catalina-ant-classpath">
  <fileset dir="${tomcat_dir}/lib">
    <include name="catalina-ant.jar"/>
    <include name="tomcat-coyote.jar"/>
    <include name="tomcat-util.jar"/>
  </fileset>
  <fileset dir="${tomcat_dir}/bin">
    <include name="tomcat-juli.jar"/>
  </fileset>
</path>
<taskdef name="deploy" classname="org.apache.catalina.ant.DeployTask" classpathref="catalina-ant-classpath"/>
<taskdef name="undeploy" classname="org.apache.catalina.ant.UndeployTask" classpathref="catalina-ant-classpath"/>
<taskdef name="list" classname="org.apache.catalina.ant.ListTask" classpathref="catalina-ant-classpath"/>

#5

In order to get all the ant commands to work the manager url can be changed in the build.properties file instead of changing the url when defining the "list" target in the build.xml file.

为了使所有ant命令工作,可以在build.properties文件中更改管理器URL,而不是在build.xml文件中定义“list”目标时更改url。

tomcat.manager.url=http://localhost:8080/manager/text

#6

Also have a look at my Catalina-Ant for Tomcat 7 article here:

还可以在这里查看我的Catalina-Ant for Tomcat 7文章:

http://paulgrenyer.blogspot.co.uk/2011/11/catalina-ant-for-tomcat-7.html

#7

None of the other answer work for me. Instead I copied TOMCAT_HOME/lib/catalina-ant.jar, TOMCAT_HOME/lib/tomcat-coyote.jar, TOMCAT_HOME/lib/tomcat-util.jar and TOMCAT_HOME/bin/tomcat-juli.jar to the ANT_HOME/lib directory.

其他答案都不适合我。相反,我将TOMCAT_HOME / lib / catalina-ant.jar,TOMCAT_HOME / lib / tomcat-coyote.jar,TOMCAT_HOME / lib / tomcat-util.jar和TOMCAT_HOME / bin / tomcat-juli.jar复制到ANT_HOME / lib目录。

It seems like the classpathref doesn't include these files properly.

似乎classpathref没有正确包含这些文件。

#8

what worked for me was adding the four jar files to the build path

对我有用的是将四个jar文件添加到构建路径

Run -> run configuration -> choose you program, select Classpath tab on the right, click User Entries, then add external 4 jars from the tomcat directory

运行 - >运行配置 - >选择程序,选择右侧的Classpath选项卡,单击User Entries,然后从tomcat目录添加外部4个jar

After this my build.xml runs like before

在此之后,我的build.xml像以前一样运行

#9

I'm not sure why is this happening, but here's a workaround: http://www.coderanch.com/t/553582/Tomcat/java-lang-NoClassDefFoundError-org-apache

我不确定为什么会这样,但这是一个解决方法:http://www.coderanch.com/t/553582/Tomcat/java-lang-NoClassDefFoundError-org-apache

I'm looking for the solution, once I get it I will try not to forget to post it in here.

我正在寻找解决方案,一旦我得到它,我会尽量忘记在这里发布它。

I use opensuse.

我用opensuse。

#10

I am on Mac OS X. This worked for me:

我在Mac OS X上。这对我有用:

<!-- ============================================================== -->
<!-- Tomcat tasks - remove these if you don't have Tomcat installed -->
<!-- ============================================================== -->

    <path id="catalina-ant-classpath">
        <!-- We need the Catalina jars for Tomcat -->
        <!--  * for other app servers - check the docs -->
        <fileset dir="${appserver.lib}">
            <include name="catalina-ant.jar"/>
        <include name="tomcat-coyote.jar"/>
        <include name="tomcat-util.jar"/>
      </fileset>
      <fileset dir="${appserver.home}/bin">
        <include name="tomcat-juli.jar"/>
      </fileset>        
    </path>

#11

I new to Spring or even first use to tomcat, i'm just trying add classpath to subsection tomcat task in build.xml (in every tomcat task) and i dont why, but its works.

我刚接触Spring,甚至第一次使用tomcat,我只是尝试将buildpath添加到build.xml中的分段tomcat任务(在每个tomcat任务中),我不知道为什么,但它的工作原理。

<taskdef name="deploy" classname="org.apache.catalina.ant.DeployTask">
    <classpath>
        <path location="${appserver.home}/lib/catalina-ant.jar"/>
        <path location="${appserver.home}/lib/tomcat-coyote.jar"/>
        <path location="${appserver.home}/lib/tomcat-util.jar"/>
        <path location="${appserver.home}/bin/tomcat-juli.jar"/>
    </classpath>
</taskdef>

#12

After doing above changes and running "ant list", I got error as, java.io.FileNotFoundException: ..../manager/text/list". It was resolved by starting tomcat from its installation directory and not using eclipse to start it. After starting tomcat, first try "localhost:8080" in the browser. This should display tomcats page. Then try running "ant list". It works and above issue is resolved.

执行上述更改并运行“ant list”后,我收到错误,java.io.FileNotFoundException:.... / manager / text / list“。它是通过从其安装目录启动tomcat而不是使用eclipse启动来解决的启动tomcat后,首先在浏览器中尝试“localhost:8080”。这应该显示tomcats页面。然后尝试运行“ant list”。它可以解决上面的问题。

#13

I would suggest a minor modification to the previous answers.

我建议对以前的答案进行一些小修改。

Configuring a user to have both manager-gui and manager-script roles is strongly discouraged in the Tomcat 7 documentation 1. It can leave your site open to CSRF attacks.

强烈建议不要在Tomcat 7文档中配置用户同时拥有manager-gui和manager-script角色1.它会使您的站点对CSRF攻击开放。

Defining separate users with different passwords for each role would be safer:

为每个角色定义具有不同密码的单独用户将更安全:

<role rolename="manager-"/>
<role rolename="manager-script"/>
<user username="admin-gui" password="s3cret1" roles="manager-gui"/>
<user username="admin-script" password="s3cret2" roles="manager-script"/>

In general, you only need to memorize the user name and password for the GUI user, so it's no burden to have a safer configuration.

通常,您只需要记住GUI用户的用户名和密码,因此拥有更安全的配置不会有任何负担。

#14

Three Things-

• If using Tomcat 7.x Change fileset for catalina-ant-classpath

  如果使用Tomcat 7.x更改catalina-ant-classpath的文件集

  <path id="catalina-ant-classpath">
      <!-- We need the Catalina jars for Tomcat -->
      <!--  * for other app servers - check the docs -->
      <fileset dir="${appserver.lib}">
          <include name="catalina-ant.jar"/>
      <include name="tomcat-coyote.jar"/>
      <include name="tomcat-util.jar"/>
    </fileset>
    <fileset dir="${appserver.home}/bin">
      <include name="tomcat-juli.jar"/>
    </fileset>        
  

• change the user in tomcat-users.xml to give user permission as manager-script

  更改tomcat-users.xml中的用户以将用户权限授予manager-script

• Change tomcat.manager.url property to http://localhost:8080/manager/text

将tomcat.manager.url属性更改为http:// localhost:8080 / manager / text

#15

Three Things-

If using Tomcat 7.x Change fileset for catalina-ant-classpath

如果使用Tomcat 7.x更改catalina-ant-classpath的文件集

    <path id="catalina-ant-classpath">
    <fileset dir="${appserver.lib}">
        <include name="catalina-ant.jar"/>
    <include name="tomcat-coyote.jar"/>
    <include name="tomcat-util.jar"/>
  </fileset>
  <fileset dir="${appserver.home}/bin">
    <include name="tomcat-juli.jar"/>
  </fileset> 
</path> 

change the user in tomcat-users.xml to give user permission as manager-script

更改tomcat-users.xml中的用户以将用户权限授予manager-script

Change tomcat.manager.url property to http://localhost:8080/manager/text

将tomcat.manager.url属性更改为http:// localhost:8080 / manager / text

#16

You just need to add catalina-ant.jar tomcat-coyote.jar and tomcat-util.jar from tomcat_home/lib/ directory to ant_home/lib/ directory

您只需要将tomcat_home / lib /目录中的catalina-ant.jar tomcat-coyote.jar和tomcat-util.jar添加到ant_home / lib /目录中