mysql4.1.10的JDBC驱动(mysql-connector-java-3.1.7-bin.jar)的配置及测试
mysql4.1.10的JDBC驱动的配置及测试
一.下载
mysql4.1.10的下载:
http://dev.mysql.com/get/Downloads/MySQL-4.1/mysql-4.1.10-win32.zip/from/pick
mysql4.1.10jdbc驱动的下载:
http://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-3.1.7.zip/from/pick
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二.配置
1. 把下载的jdbc驱动mysql-connector-java-3.1.7.zip解压缩,提取其中的mysql-connector-java-3.1.7-bin.jar文件到适当位置,并设置classpath路径指向该文件.
2.安装mysql数据库.
3.安装mysql-front,利用mysql-front建立数据库jtest,并在jtest中建立表info.然后填入数据.
三.测试
测试代码如下:
文件名:testMysql.java
/**
* @author rockaka
* mysql的jdbc驱动测试代码
* mysql4.1.10+mysql-connector-java-3.1.7-bin.jar
* data:2005-02-23
*/
import java.sql.*;
public class testMysql {
public static void main(String[] args) {
//驱动程序名
String driverName="com.mysql.jdbc.Driver";
//数据库用户名
String userName="root";
//密码
String userPasswd="root";
//数据库名
String dbName="jtest";
//表名
String tableName="info";
//联结字符串
String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPasswd;
System.out.println(url);
try{
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection connection=DriverManager.getConnection(url);
Statement statement = connection.createStatement();
String sql="SELECT * FROM "+tableName;
ResultSet rs = statement.executeQuery(sql);
// 获得数据结果集合
ResultSetMetaData rmeta = rs.getMetaData();
// 确定数据集的列数，亦字段数
int numColumns=rmeta.getColumnCount();
// 输出每一个数据值
for(int i=1;i<=numColumns;i++) {
if(i<numColumns)
System.out.print(rmeta.getColumnName(i)+" | ");
else
System.out.println(rmeta.getColumnName(i));
}
while(rs.next()){
for(int i=1;i<=numColumns;i++) {
if(i<numColumns)
System.out.print(rs.getString(i).trim()+" | ");
else
System.out.println(rs.getString(i).trim());
}
}
rs.close();
connection.close();
}catch(Exception ex){
System.out.println(ex);
System.exit(0);
}
}
}
四:编译与运行
1.编译:javac testMysql.java
2.运行:java testMysql
3.我的运行结果:
jdbc:mysql://localhost/jtest?user=root&password=root
NO | NAME | AGE
1 | AAA | 20
2 | BBB | 30
3 | CCC | 40