java连接mysql数据库代码

public class MySQLTest {

/**
* @param args
*/
public static void main(String[] args) {
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
String url = "jdbc:mysql://192.168.0.1:3306/test";
String className = "org.gjt.mm.mysql.Driver";;
try{
Class.forName(className);
conn = DriverManager.getConnection(url,"root","root");
stmt = conn.createStatement();
String sql = "select * from student";
rs = stmt.executeQuery(sql);
String no,name,sex;
while(rs.next()){
no = rs.getString(1);
name = rs.getString(2);
sex = rs.getString(3);
System.out.println(no + "\t" + name + "\t" + sex);
}
}catch(Exception ex){
ex.printStackTrace();
}finally{
try{
if(rs != null){
rs.close();
rs = null;
}
if(stmt != null){
stmt.close();
stmt = null;
}
if(conn != null&&!conn.isClosed()){
conn.close();
conn = null;
}
}catch(Exception ex){
ex.printStackTrace();
}
}
}