java连接mysql数据库实例

1、下载并添加mysql-connector-java-5.1.17-bin.jar包

2、代码

package mysqltest;
import java.io.*;
import java.sql.*;
public class test {
 public static void main(String[] args)
 {
  String JDriver= "com.mysql.jdbc.Driver";
  String connectdb="jdbc:mysql://127.0.0.1:3306/abc";//abc是database name
  try{
   Class.forName(JDriver);
  }catch(ClassNotFoundException ex){
   ex.printStackTrace();
   System.out.println("加载数据库引擎失败！");
   System.exit(0);
  }

  System.out.println("数据库引擎加载成功！");

  try{
   String user="root";
   String password="123456";
   Connection con=DriverManager.getConnection(connectdb, user, password);
   System.out.println("连接数据库成功！");
   Statement stmt=con.createStatement();
   System.out.println("查询\n开始读取数据");
   ResultSet rs=stmt.executeQuery("SELECT * FROM users where id=1");
   while(rs.next())
   {
    System.out.println(rs.getString("id")+"\t"+rs.getString("name"));

   }

   stmt.close();
   con.close();
  }catch(SQLException e){
   e.printStackTrace();
   System.exit(0);
  }
 }
}