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 程式師世界 >> 數據庫知識 >> Oracle數據庫 >> 關於Oracle數據庫 >> 在JAVA中連接Oracle數據庫(例子)

在JAVA中連接Oracle數據庫(例子)

編輯:關於Oracle數據庫

  /*
  * 創建日期 2005-9-27
  *
  * TODO 要更改此生成的文件的模板,請轉至
  * 窗口 - 首選項 - Java - 代碼樣式 - 代碼模板
  */
  package person.fane.test;
  
  import java.sql.*;
  /**
  * A JDBC test application for Oracle
  * @author Fane
  * @version 1.0.0
  * @since JDK1.4
  */
  public class OracleTest {
  private final String oracleDriverName = "oracle.jdbc.driver.OracleDriver";
  
  //以下使用的Test就是Oracle裡的表空間
  private final String oracleUrlToConnect ="jdbc:oracle:thin:@192.168.0.36:1521:Test";
  private Connection myConnection = null;
  /**
  * To load the jdbc driver
  *
  */
  public OracleTest()
  {
  try
  {
  Class.forName(oracleDriverName);
  }catch(ClassNotFoundException ex)
  {
  System.out.println(getErrorMessage(ex,"The Driver loaded error,please contact to your Software Designer!").toString());
  }
  }
  
  public StringBuffer getErrorMessage(Exception ex,String alarmMessage)
  {
  StringBuffer errorStringBuffer = new StringBuffer();
  errorStringBuffer.append(alarmMessage);
  errorStringBuffer.append(ex.getMessage());
  return errorStringBuffer;
  }
  
  /**
  * getConnection method
  * @return Connection
  */
  public Connection getConnection()
  {
  try
  {
  this.myConnection = DriverManager.getConnection(oracleUrlToConnect,"Fane","201");
  
  }catch(Exception ex)
  {
  System.out.println(getErrorMessage(ex,"Can not get connection,please contact to your Software Designer!").toString());
  }
  
  return this.myConnection;
  
  }
  
  /**
  * @param args
  */
  public static void main(String[] args) {
  OracleTest myOracleTest = new OracleTest();
  try
  {
  Connection myConnection = myOracleTest.getConnection();
  
  System.out.println("Now begin to excute.............");
  
  PreparedStatement myPreparedStatement = myConnection.prepareStatement("select area_id, area_name,ip_address,tel,area_type,pc_id from c_area_info");
  //myPreparedStatement.setInt(1,2);
  ResultSet myResultSet = myPreparedStatement.executeQuery();
  StringBuffer myStringBuffer = new StringBuffer();
  
  while(myResultSet.next())
  {
  
  myStringBuffer.append(myResultSet.getInt("area_id")+" ");
  myStringBuffer.append(myResultSet.getString("area_name")+" ");
  myStringBuffer.append(myResultSet.getString("ip_address")+" ");
  myStringBuffer.append(myResultSet.getString("tel")+" ");
  myStringBuffer.append(myResultSet.getInt("area_type")+" ");
  myStringBuffer.append(myResultSet.getInt("pc_id")+" ");
  }
  System.out.println(myStringBuffer.toString());
  //System.out.println(new String(myStringBuffer.toString().getBytes("ISO-8859-1"),"GBK"));
  }catch(Exception ex)
  {
  System.out.println(myOracleTest.getErrorMessage(ex,"Application error,please contact to your Software Designer!").toString());
  }
  
  }
  
  }

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