如何使用命令行从指定了类路径的jar运行类 [英] How to run a class from a jar with from command-line with classpath specified

问题描述

我正在尝试从JAR运行一个类。这个类不是这个jar中唯一的主类。此外，它需要许多其他jar文件，我保存在与此Jar相同的目录中。我尝试过的命令如下：

I am trying to run a class from a JAR. This class is NOT the only main class in this jar. Also, it requires number of other jar files, which I have kept in the same directory as this Jar. The commands I have tried are as follows:

（mydir是我的所有罐子所在的目录，使用Windows平台）

(mydir is the directory in which all of my jars are located, using Windows platform)

myProjImport.jar需要mysql-connector-java-5.1.13-bin.jar 运行和 com.mycomp.myProj.importer.csv.TestImporter 是我正在尝试运行的类。
C：\Documents and Settings\user\workspace\myProjImport\src\conf\datasource.properties和C：\ temp\apollo_claims_test.txt是类所需的命令行参数 TestImporter
这里是我试过的：

mysql-connector-java-5.1.13-bin.jar is needed for myProjImport.jar to run and com.mycomp.myProj.importer.csv.TestImporter is the class i am trying to run. "C:\Documents and Settings\user\workspace\myProjImport\src\conf\datasource.properties" and "C:\temp\apollo_claims_test.txt" are the command line arguments required by the class TestImporter Here is what I have tried:

mydir>java -cp C:\temp\test_myProj\mysql-connector-java-5.1.13-bin.jar;. myProjImport.jar com.mycomp.myProj.importer.csv.TestImporter "C:\Documents and Settings\user\workspace\myProjImport\src\conf\datasource.properties" "C:\temp\apollo_claims_test.txt"

这是错误：

Exception in thread "main" java.lang.NoClassDefFoundError: myProjImport/jar
Caused by: java.lang.ClassNotFoundException: myProjImport.jar
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: myProjImport.jar.  Program will exit.

有人可以告诉我应该运行什么样的命令吗？

Can someone please tell me what exact command should I run?

推荐答案

尝试：

java -cp C：\ temp \ test_myProj \ mysql-connector-java-5.1.13-bin.jar; myProjImport.jar com.mycomp.myProj.importer.csv.TestImporterC：\Documents and Settings\user\workspace\myProjImport\src \ conf\datasource.propertiesC：\ temp \ apollo_claims_test.txt

如果你从同一个地方运行它direcotry as myProjImport.jar

provided your running this from the same direcotry as myProjImport.jar

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