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MySql_connection

程序员文章站 2022-05-13 17:43:33
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--------------------------------------------------
http://dev.mysql.com/downloads
1.MySQL Server 5.1
2.Navicat 8 for MySQL (数据库交互工具)
--------------------------------------------------

package com;
import java.sql.DriverManager;
import java.sql.SQLException;
import com.mysql.jdbc.Connection;
import com.mysql.jdbc.ResultSet;
import com.mysql.jdbc.Statement;

public class Maintest
{
	public static void main(String[] args) 
	{
		Connection conn = null;
		Statement stmt = null;
		ResultSet rs = null;
		try {
			Class.forName("com.mysql.jdbc.Driver");
			conn = (Connection) DriverManager.getConnection("jdbc:mysql://localhost/xjq?user=root&password=root");
			stmt = (Statement) conn.createStatement();
			rs = (ResultSet) stmt.executeQuery("select * from tuser");
			while (rs.next())
			{
				System.out.println(rs.getString("fid") + ":"+ rs.getString("fname"));
			}

		} 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();
			}
		}	
	}	
}

 

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