java连接数据库的最简单的代码

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对于初学java的人或者是想知道一个数据库是否可以被多台电脑共享,需要快速验证一下

一下是代码

当然前提是引入mysql-connector-java-5.1.8-bin.jar

package cn.com.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class Test {

    public static void main(String[] args) {
        //声明Connection对象
        Connection con;
        //驱动程序名
        String driver = "com.mysql.jdbc.Driver";
        //URL指向要访问的数据库名mydata
        String url = "jdbc:mysql://192.168.16.8:3306/lf";
        //MySQL配置时的用户名
        String user = "root";
        //MySQL配置时的密码
        String password = "root";
        //遍历查询结果集
            //加载驱动程序
            try {
				Class.forName(driver);
		         //1.getConnection()方法,连接MySQL数据库!!
	            con = DriverManager.getConnection(url,user,password);
	            String sql="select * from yh where number='0297' and time like '2018-11-13%'";
	          PreparedStatement ps=con.prepareStatement(sql);
	            ResultSet rs=ps.executeQuery();
	            while(rs.next()){
	            System.out.println(rs.getString(2));	
	            	
	            }
			} catch (ClassNotFoundException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
   

    }
}

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转载自blog.csdn.net/qq_37591637/article/details/86299778