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开发学院WEB开发Jsp 在JAVA中连接Oracle数据库 阅读

在JAVA中连接Oracle数据库

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核心提示: /* * TODO 要更改此生成的文件的模板,请转至 * 窗口 - 首选项 - java - 代码样式 - 代码模板 */package person.fane.test;import java.sql.*;/** * A JDBC test application


/*
* TODO 要更改此生成的文件的模板,请转至
* 窗口 - 首选项 - java - 代码样式 - 代码模板
*/
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里的表空间
  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")+"\n");
      }
      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());
    }

  }


Tags:JAVA 连接 Oracle

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