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执行 asadmin start-domain 时出现Exception in thread "main" java.lang.NullPointerException 或访问已部署的Java web项目时报错 阅读全文
posted @ 2019-03-07 22:10
利威尔兵长
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2019年3月7日
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在命令行窗口中输入：mvn -v 或 直接 mvn 时出现如下问题：
The JAVA_HOME environment variable is not defined correctly This environment variable is needed to run this program NB: JAVA_HOME should point to a JDK not a JRE 阅读全文
posted @ 2019-03-07 21:54
利威尔兵长
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在命令行窗口中输入：mvn -v 或 直接 mvn 时报错：“错误: 找不到或无法加载主类 org.codehaus.plexus.classworlds.launcher.Launcher” 阅读全文
posted @ 2019-03-07 21:04
利威尔兵长
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What: What: A functional language is a programming language built over and around logical functions or procedures within its programming structure. It 阅读全文
posted @ 2019-03-07 13:29
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Click me~ why Java EE provides injection mechanisms that enable your objects to obtain references to resources and other dependencies without having t 阅读全文
posted @ 2019-03-07 13:21
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why Normally, thin-client multitiered applications are hard to write because they involve many lines of intricate code to handle transaction and state 阅读全文
posted @ 2019-03-07 13:13
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