类的类getClassLoader()方法 (Class class getClassLoader() method) getClassLoader() method is available in java.lang package. getClassLoader()方法在java.lang包中可用。 getClassLoader() method is used to return the ClassLoader that loads the class or interfac…
DataOutputStream类writeByte()方法 (DataOutputStream Class writeByte() method) writeByte() method is available in java.io package. writeByte()方法在java.io包中可用。 writeByte() method is used to write the given value as one-byte value to the basic stream a…
类的类getConstructor()方法 (Class class getConstructor() method) getConstructor() method is available in java.lang package. getConstructor()方法在java.lang包中可用。 getConstructor() method is used to return a Constructor object that reflects the given pub…
ByteArrayOutputStream类size()方法 (ByteArrayOutputStream Class size() method) size() method is available in java.io package. size()方法在java.io包中可用。 size() method is used to return the current size of the buffer exists. size()方法用于返回缓冲区当前存…
在对数据库进行备份时,用数据泵的方法,需要执行一段代码: --建目录
create directory dir as d:\bak;--给用户授权使用目录
grant read,write on directory dir to scott;--在cmd中输入以下代码
expdp scott/tigerXE directorydir dumpfileab…