JDBC Connection Oracle Syntax

 Public classLangdemo { Public Static voidMain (string[] args)throwsexception{Try {                 //Load DriverClass.forName ("Oracle.jdbc.driver.OracleDriver"); //Create a connectionConnection cn=drivermanager.getconnection ("Jdbc:oracle:thin:@127.0.0.1:1521:xe", "hh", "HH"); Statement SM=cn.createstatement (); //get the result setResultSet rs=sm.executequery ("Select Name,nickname,id from a"); //traversing result sets                  while(Rs.next ()) {System.out.println ("Name:" +rs.getstring (1));//rs.getstring ("name")System.out.println ("Nickname:" +rs.getstring (2));//rs.getint ("id")}        } Catch(Exception e) {e.printstacktrace (); }finally{//Rs.close (); //conn.close ();                 }    }}

 Public classLangdemo { Public Static voidMain (string[] args)throwsexception{Connection con=NULL;//Create a connection to a databasePreparedStatement pre =NULL;//Create precompiled statement objects, usually with this instead of statementResultSet result =NULL;//Create a result set object     Try{class.forname ("Oracle.jdbc.driver.OracleDriver");//load the Oracle driverSystem.out.println ("Start trying to connect to the database!") "); String URL= "Jdbc:oracle:" + "thin:@127.0.0.1:1521:xe";//127.0.0.1 is a native address, XE is the default database name for Lite OracleString user = "System";//user name, system default account nameString Password = "147";//The password you selected when you installed the settingscon = drivermanager.getconnection (url, user, password);//Get ConnectionsSYSTEM.OUT.PRINTLN ("Connection Successful! "); String SQL= "SELECT * from student where name=?";//precompiled statement, "? The delegate parameterPre = con.preparestatement (SQL);//Instantiating precompiled StatementsPre.setstring (1, "Zhang San");//The parameter is set, and the previous 1 indicates the index of the parameter, not the index of the column name in the tableresult = Pre.executequery ();//Execute the query, note that no additional arguments are required in parentheses         while(Result.next ())//When the result set is not emptySystem.out.println ("School Number:" + result.getint ("id") + "Name:" + result.getstring ("name")); }      Catch(Exception e) {e.printstacktrace (); }       finally{..... }     }}

JDBC Connection Oracle Syntax