设置java类路径（用于超级开发模式） [英] Setting the java classpath (for super dev mode)

问题描述

我试图在OSX.7中使用命令
$ b $运行jar， gwt-codeserver.jar

-codeserver.jar com.activegrade.TeacherView

命令执行失败：

 线程main中的异常java.lang.NoClassDefFoundError：com / google / gwt / core / ext / TreeLogger 
导致：java.lang .ClassNotFoundException：com.google.gwt.core.ext.TreeLogger $ javab.URLClassLoader 
 $ 1.run（URLClassLoader.java:202）
 ... 
  

但gwt-dev.jar包含com.google.gwt.core.ext.TreeLogger的定义，所以我断定我' m没有正确设置类路径。

我是否正确设置类路径？ jar文件绝对是正确的jar，它绝对在那个位置。如何进一步诊断？ 解决方案

这是问题的根源吗？ 当使用-jar选项时，JAR文件是所有用户类的源代码，而其他用户类路径设置将被忽略。

I'm trying to run a jar, gwt-codeserver.jar, in OSX.7, with the command

java -cp ".:/sdk/gwt-2.5.0.rc1/gwt-dev.jar" -jar /sdk/gwt-2.5.0.rc1/gwt-codeserver.jar com.activegrade.TeacherView

The command fails with:

Exception in thread "main" java.lang.NoClassDefFoundError: com/google/gwt/core/ext/TreeLogger
Caused by: java.lang.ClassNotFoundException: com.google.gwt.core.ext.TreeLogger
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    ...

But gwt-dev.jar contains the definition for com.google.gwt.core.ext.TreeLogger, so I've concluded that I'm not properly setting the classpath here.

Am I setting the classpath correctly? The jar file is definitely the right jar and it's definitely at that location. How can I diagnose this further?

解决方案

Could this be the source of your problem? "When you use the -jar option, the JAR file is the source of all user classes, and other user class path settings are ignored."

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