Question

在myeclipse中如何连接mysql数据库

Answer 1

JDBC连接MySQL(mm.mysql-3.0.2-bin.jar)
Class.forName( "org.gjt.mm.mysql.Driver" );
cn = DriverManager.getConnection( "jdbc:mysql://DBServerIP:3306/myDatabaseName", sUsr, sPwd );

Answer 2

import java.sql.*;

public class TestMysqlConnection {

public static void main(String[] args) {
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try {
Class.forName("com.mysql.jdbc.Driver");

conn = DriverManager.getConnection("jdbc:mysql://localhost:3309/mydata?user=root&password=");
stmt = conn.createStatement();
rs = stmt.executeQuery("select * from dept");
while (rs.next()) {

System.out.println(rs.getString("deptno"));
}
}

catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException ex) {

System.out.println("SQLException: " + ex.getMessage());
System.out.println("SQLState: " + ex.getSQLState());
System.out.println("VendorError: " + ex.getErrorCode());
} finally {
try {
if (rs != null) {
rs.close();
rs = null;
}
if (stmt != null) {
stmt.close();
stmt = null;
}
if (conn != null) {
conn.close();
conn = null;
}
} catch (SQLException e) {
e.printStackTrace();
}
}

}