淺談如何利用Java的JDBC操作Oracle數(shù)據(jù)庫
參考 http://java.sun.com/docs/books/tutorial/jdbc/basics/index.html Java JDBC中操作Oracle數(shù)據(jù)庫,經(jīng)過以下幾個(gè)步驟,
1.將OracleHome/jdbc/lib/目錄的所有文件添加到j(luò)re/lib/ext目錄;(配置Java JDBC驅(qū)動(dòng))
2.創(chuàng)建odbc源,在控制面板=》管理工具=》數(shù)據(jù)源(odbc)中添加DSN,比如取名為OracleDSN,選擇一個(gè)Service,輸入用戶名密碼,測(cè)試連接,若通過說明成功;
3.在程序中加載jdbc驅(qū)動(dòng)(下面的例子用的是JdbcOdbc驅(qū)動(dòng)),建立連接,執(zhí)行Query.
下面是連接OracleDSN ODBC data source的一個(gè)類,方法Test()連接數(shù)據(jù)庫后,讀取tbljob的內(nèi)容,并顯示所有記錄。
- import java.sql.*;
 - class OracleConnect {
 - public static void Test() { //connection by JdbcOdbcDriver
 - try {
 - //load the driver:
 - Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
 - //connect the Database,OracleDSN is the ODBC data source ;
 - String url = "jdbc:odbc:OracleDSN";
 - Connection conn = DriverManager.getConnection(url, "system",
 - "system_passwd");
 - // Create a Statement
 - Statement stmt = conn.createStatement();
 - // Select first_name and last_name column from the employees table
 - ResultSet rset = stmt.executeQuery("select * from tbljob;");
 - // Iterate through the result and print the employee names
 - while (rset.next())
 - System.out.println(rset.getString(1) + " " + rset.getString(2));
 - // Close the RseultSet2
 - rset.close();
 - // Close the Statement
 - stmt.close();
 - // Close the connection
 - conn.close();
 - } catch (Exception e) {
 - // TODO Auto-generated catch block
 - e.printStackTrace();
 - }
 - }
 - }
 
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