Java关于Resource leak: 's' is never closed的问题

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Java关于Resource leak: 's' is never closed的问题

Resource leak: 's' is never closed的问题问题:在编写Java时出现了Resource leak: 's' is never closed的问题,也就是对象s下面的波浪线产生的错误,鼠标放上去之后就可以知道详情. 原因:Scanner s = new Scanner(System.in)申明了名为s的数据输入扫描仪(Scanner),系统给它分配相应的内存空间,但是在程序结时却没有释放该内存,会造成资源浪费,因此出现警告. ps:当然只是警告,程序依旧可以执行,…

Eclipse用java.util.Scanner时出现Resource leak: 'in' is never closed

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Resource leak: 'context' is never closed

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ApplicationContext applicationContext = new ClassPathXmlApplicationContext(xmlPath); 此处applicationContext会有警告出现,根据警告的英文意思翻译成中文就是“applicationContext没有关闭”,和Scanner,DB,IO类似,用完即关,所以我们要把applicationContext关闭.而applicationContext没有直接提供关闭的方法,在它的子类“Configurabl…

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java读取resource目录下的配置文件

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SQLException: com.mchange.v2.c3p0.ComboPooledDataSource [ java.beans.IntrospectionException: java.lang.reflect.InvocationTargetException [numThreadsAwaitingCheckoutDefaultUser] ] has been closed()

问题:Could not get JDBC Connection; nested exception is java.sql.SQLException: com.mchange.v2.c3p0.ComboPooledDataSource [ java.beans.IntrospectionException: java.lang.reflect.InvocationTargetException [numThreadsAwaitingCheckoutDefaultUser] ] has been…