package itcast;
import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;public class Base { /** * @param args */ public static void main(String[] args) { } static void template() throws Exception { String url = "jdbc:mysql://localhost:3306/test"; String user = "root"; String password = ""; Connection conn = null; Statement st = null; ResultSet rs = null; try { // 1注册驱动 Class.forName("com.mysql.jdbc.Driver"); // 2建立链接 conn = DriverManager.getConnection(url, user, password); // 3创建语句 st = conn.createStatement(); // 4 执行语句 rs = st.executeQuery("select * from user"); // 5处理结果 while (rs.next()) { System.out.println(rs.getObject(1) + "\t" + rs.getObject(2) + "\t" + rs.getObject(3) + "\t" + rs.getObject(4) + "\t" + rs.getObject(5) + "\t"); } } finally { try { if (rs != null) { rs.close(); } } finally { try { if (st != null) { st.close(); } } finally { if (conn != null) { conn.close(); } } } } }}