java中getrealpath怎么使用
在Java中，可以通过使用getRealPath()方法来获取Web应用程序的真实路径。这个方法通常在Servlet中使用，它返回一个字符串，表示Web应用程序的根目录在文件系统中的真实路径。以下是getRealPath()方法的示例用法：importjavax.servlet.*;importjavax.servle...
System.getProperty()
System类来自于这个包：java.lang.SystemSystem.getProperty("XXX")方法用来读取JVM中的系统属性，那么java虚拟机中的系统属性使用在运行java程序的时候java-D配置，有两种方式1-在命令行配置在eclipse中，选中这个项目，然后在工具栏中选择ru...
ORA-29835: ODCIGETINTERFACES routine does not return required interface(s)
文档解释ORA-29835:ODCIGETINTERFACESroutinedoesnotreturnrequiredinterface(s)Cause:TheODCIObjectListreturnedbytheODCIGetInterfacesroutinedoesnotcontaintheinterface(s)...
ORA-16416: No viable stringswitchover targets available
文档解释ORA-16416:NoviablestringswitchovertargetsavailableCause:Switchoverfailedbecausenostandbydatabasesoftheappropriatetypewereavailable.Action:Checkthealertlogfo...
ORA-48130: invalid lock parameters for get file lock [string]
文档解释ORA-48130:invalidlockparametersforgetfilelock[string]Cause:Invalidlockparameterspassedinforthegetfilelockroutine.Theusermustpassinfileasthelocktype.Or,there...
ORA-27550: Target ID protocol check failed. tid vers=string, type=string, remote instance number=string, local instance number=string
文档解释ORA-27550:TargetIDprotocolcheckfailed.tidvers=string,type=string,remoteinstancenumber=string,localinstancenumber=stringCause:ThelocalOracleRealApplicationCl...
ORA-28512: cannot get data dictionary translations from string
文档解释ORA-28512:cannotgetdatadictionarytranslationsfromstringCause:ORACLEwasunabletoretrievedatadictionarytranslationinformationforthenon-Oraclesystemconnectedthr...
ORA-07597: spguns: $GETJPIW failure
文档解释ORA-07597:spguns:$GETJPIWfailureCause:VMSsystemservice$GETJPIWfailedAction:ExaminesystemerrormessageandrefertoVMSdocumentationORA-07597:spgun:$GETJPIWfailur...