Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist
Closed 10 years ago.
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不,您永远不应该像这样解压 JAR 文件。只需将其放入 WEB-INF/lib 中即可将其添加到类路径中,然后开始编写类。
No, you should never, ever unzip a JAR file like that. Just add it to your classpath by putting it in your WEB-INF/lib and start writing classes.