javac classpath选项在当前目录中有多个jar文件导致错误 [英] javac classpath option with multiple jar files in current directory causing error
问题描述
环境:Windows 7，Java 6.
Environment: Windows 7, Java 6.
尝试使用-cp选项编译.java文件.该文件使用当前目录中的一个jar文件，以及当前目录中的一些其他jar文件.
Trying to compile a .java file with -cp option. The file uses a single jar file that's in the current directory ALONG WITH some other jar files in the current directory.
javac -cp ./*.jar MyFile.java
不起作用.
javac -cp ./* MyFile.java
不起作用
javac -cp ./MyJar.jar MyFile.java
有效
前两种情况，我收到无效的标志错误.有人可以解释这种行为吗?
First two cases, I get a invalid flag error. Can someone explain this behavior?
我检查了是否存在空格问题，完整文件路径中的任何地方都没有空格.
And I checked if it is spaces issue, there are no spaces anywhere in my full file paths.
推荐答案
注释以及此问题可能已经在这里有了答案"中提供的两个链接的引用来源，但并不完全解释观察到的行为.
The quoted sources for the two links provided in the comments as well as in the "This question may already have an answer here:", do not completely explain the observed behavior.
javac -cp ./*.jar MyFile.java
javac -cp ./*.jar MyFile.java
不起作用，因为在这种情况下通配符*的用法与正常用法不同.这可以从文档中了解. *始终代表完整文件，而不代表部分文件名.
Won't work, because the wildcard * usage in this context differs from normal usage. This can be understood from the documentation. * always represents full file(s) and not partial file names.
javac -cp ./* MyFile.java
javac -cp ./* MyFile.java
本来应该工作的.显然在Windows中使用双引号和/或分号.作品:
Should have worked. Apparently using double quotes and/or a semi-colon in windows. works:
javac -cp"./*"; MyFile.java
javac -cp "./*" MyFile.java
javac -cp ./*; MyFile.java
javac -cp ./*; MyFile.java
javac -cp"./*;"; MyFile.java
javac -cp "./*;" MyFile.java
javac -cp *; MyFile.java
javac -cp *; MyFile.java
javac -cp"*" MyFile.java
javac -cp "*" MyFile.java
javac -cp"*;" MyFile.java
javac -cp "*;" MyFile.java
在记录中没有任何地方提到afaik这个重要事实.
Nowhere in the documention is this important fact mentioned afaik.
所以我猜想在Java 1.6.0_75的WINDOWS 7 64位上，无论是使用双引号还是在使用WILDCARD时总是使用半冒号*
So I guess ON WINDOWS 7 64 bit, with java 1.6.0_75 EITHER USE DOUBLE QUOTES OR ALWAYS A SEMI-COLON WHEN USING WILDCARD *
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