Java JDBC連接MySQL
阿新 • • 發佈:2017-06-07
小實例 取數據 customers select 關閉數據庫 exec 技術分享 system throws
簡單地JDBC小實例
package com.javaJDBCTest; import java.sql.DriverManager; import java.sql.ResultSet; import com.mysql.jdbc.Connection; import com.mysql.jdbc.Statement; public class JDBCTestDemo1 { public static void main(String args[]) throws Exception { //加載驅動類 Class.forName("com.mysql.jdbc.Driver"); //通過DriverManager獲取數據庫連接 String url = "jdbc:mysql://127.0.0.1/TestDB"; String user = "root"; String password = "ddddd"; Connection connection = (Connection) DriverManager.getConnection(url, user, password); //通過connection對象獲取Statement對象,執行SQL語句 Statement statement = (Statement)connection.createStatement(); ResultSet resultSet = statement.executeQuery("select * from customers"); //操作ResultSet while(resultSet.next()) { System.out.println(resultSet.getString("cust_name")); } //關閉數據庫連接 resultSet.close(); statement.close(); connection.close(); } }
這是MySQL表
連接成功,獲取表數據:
Java JDBC連接MySQL