连接MySQL并执行Select

王朝mysql·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

/*

Database Programming with JDBC and Java, Second Edition

By George Reese

ISBN: 1-56592-616-1

Publisher: O'Reilly

*/

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.Statement;

/**

* Example 3.1.

*/

public class Select {

public static void main(String args[]) {

String url = "jdbc:msql://carthage.imaginary.com/ora";

Connection con = null;

try {

String driver = "com.imaginary.sql.msql.MsqlDriver";

Class.forName(driver).newInstance();

} catch (Exception e) {

System.out.println("Failed to load mSQL driver.");

return;

}

try {

con = DriverManager.getConnection(url, "borg", "");

Statement select = con.createStatement();

ResultSet result = select

.executeQuery("SELECT test_id, test_val FROM test");

System.out.println("Got results:");

while (result.next()) { // process results one row at a time

int key = result.getInt(1);

String val = result.getString(2);

System.out.println("key = " + key);

System.out.println("val = " + val);

}

} catch (Exception e) {

e.printStackTrace();

} finally {

if (con != null) {

try {

con.close();

} catch (Exception e) {

e.printStackTrace();

}

}

}

}

}

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