Java jar无法解析类 [英] Java jars unable to resolve class

问题描述

我对Java开发还比较陌生...我以为我了解类路径的工作原理，但是我一定会缺少一些东西.

I'm relatively new to Java development...I thought I understood how class path works, but I must be missing something.

使用Groovy，我有2个由导入引用的外部类.执行脚本时，出现无法解析类"错误.我将这些罐子放在与脚本相同的目录中.如果我将其解压缩，脚本将起作用，但将脚本解压缩将不会.

Using Groovy, I have 2 external classes referenced by imports. When I execute the script, I get "unable to resolve class" errors. I have the jars for these in the same directory as the script. If I un-jar them, the script works, but jar'd up the script does not.

我在这里想念什么?

示例

import org.apache.log4j.Logger

Logger log = Logger.getLogger("ldap_delete")
log.info("This is an informative log entry")

将log4j-1.2.17.jar与.groovy脚本放在同一目录中不起作用.将cp设置为.不起作用.我必须做:

Putting log4j-1.2.17.jar in the same directory as the .groovy script does not work. Setting cp to . does not work. I have to do:

groovy -cp log4j-1.2.17.jar myscript.groovy

以加载该类.

推荐答案

需要查看针对您特定问题的脚本，但是通常，如果运行Java程序依赖于其他jar，则需要设置类路径.这是一个示例:

Would need to see the script for your specific problem but in general you need to set the classpath when running a java program if it is dependent upon other jars. Here is an example:

java -cp/path/to/something.jar;/another/path/else.jar my.package.Program

java -cp /path/to/something.jar;/another/path/else.jar my.package.Program

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