oracle database connection in java

Customerdao interface, and use JDBC to complete the corresponding database operation.Summarize:1. use config to load the database configuration file so that if you change the configuration of the database, you only need to change the configuration information in the file, you do not have to modify the code. 2.thefunction operation in the Bank class, the operati

() + Ds.geturl ());} catch (IOException e) {E.printstacktrace ();} finally {try {if (is = null)Is.close ();} catch (IOException e) {E.printstacktrace ();}}}public static Connection getconnection () throws SQLException {return Ds.getconnection ();}public static void Close (ResultSet rs, PreparedStatement PS, Connection conn) {try {if (rs! = null)Rs.close ();if (PS! = null)Ps.close ();IF (conn! = null)Conn.c

Catch block $ e.printstacktrace ();Panax Notoginseng } - returncn; the } + A /* the * Close result set, operation, connection + */ - $ Public voidClose (ResultSet rs,preparedstatement ps,connection cn) { $ Try{ - //determine if the value is null - if(rs!=NULL){ the rs.close (); - } Wuyi if(ps!=NULL

Java wants to connect to a database first to introduce a database driver package1 Final StaticString drive = "Oracle.jdbc.driver.OracleDriver";2 Final StaticString Oracleurl = "Jdbc:oracle:thin: @xx. Xxx.xx.xx:1521:orcl";3 Final StaticString dbuser= "Studio";4 Final StaticString password= "Studio";5 6 Public voidExcutesearch (String str)7 {8Connection conn =NULL

To import a package:Import java.sql.Connection;Import Java.sql.DriverManager;Import java.sql.PreparedStatement;Import Java.sql.ResultSet;Import java.sql.SQLException;Declaring variables:private static String Usernamr = "LSDB"; Database user name, in MySQL all database user name password is the same, Oracle database use

post-precompile. PreparedStatement ps=conn.preparestatement (SQL); //Input ParametersPs.setint (1, 6);//The first one is the parameter index, and the second is the value. Ps.setstring (2, "SSS"); Ps.setstring (3, "18"); if(Ps.execute ()) {System.out.println ("Record added successfully"); } //precompilation: Modifying Records//String sql= "update student set pass=? where Name=?";//preparedstatement ps=conn.preparestatement (SQL);//ps.setstring (1, "666");//ps.setstring (

Tags: packagecom.db; import java.sql.connection; importjava.sql.DriverManager; importjava.sql.PreparedStatement; import java.sql.resultset; publicclass DBConnection{ // Connect Oracle database publicvoidoracleconnection () { Connectioncon= null; preparedstatement pre=null; resultsetrs=null; try{ //1. load Oracle Drivers class.forname (" Oracle.jdbc.d

blockE.printstacktrace (); }finally{dbutil.close (PreparedStatement); Dbutil.close (connection); } } Public Static voidMain (String args[]) {test test=NewTest (); Model Model=NewModel ("1", "123", "123", "Zhang San", 18);//Test.add (model); //model.update ("123", "123", "Zhang San",);//test.update (model);// //model=test.load ("1");//System.out.println ("Query results ———— Name:" +model.getname () + ", Age:" +model.ge

Ways to connect to an Oracle databaseFormat one: Oracle JDBC Thin using a servicename:jdbc:oracle:thin:@//:/EXAMPLE:JDBC:ORACLE:THIN:@//192.168.2.1:1521/XE Note the format here, which is followed by//, which is the main difference from using SIDS.This format is recommended by Oracle because the SID for each node is different for the cluster, but the service_name

Oracle database connection in Java write a generic class Ubutil () {}ImportJava.io.InputStream;ImportJava.sql.*;Importjava.util.Properties; Public classDbutil {Private StaticConnection con; Private StaticString URL; Private StaticString User; Private StaticString pwd; PublicDbutil () {}Static { Try{class.fornam