使用java连接Mysql 和Using JDBC Statement Objects to Execute SQL 

首先引入mysql-connector-javaXXXXX.jar的包：

项目test右键 Build Path> Add External Achives.....>选择mysql-connector-javaXXXXX.jar（已经下载）

package test;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;


// Notice, do not import com.mysql.jdbc.*
// or you will have problems!


public class LoadDriver {
    public static void main(String[] args) {
    	Connection conn = null;
    	Statement stmt= null;
        ResultSet rs = null;
    	
        try {
            // The newInstance() call is a work around for some
            // broken Java implementations


            Class.forName("com.mysql.jdbc.Driver").newInstance();
        } catch (Exception ex) {
            ex.printStackTrace();
        }

        try {
            conn =
               DriverManager.getConnection("jdbc:mysql://localhost/mydatabase?" +
                                           "user=root&password=root");
            stmt= conn.createStatement();
            rs = stmt.executeQuery("select * from dept");
            while(rs.next()){
            	System.out.println(rs.getString("name"));
            }
            // Do something with the Connection
        } catch (SQLException ex) {
            // handle any errors
            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();
        	}
        }
    }
}

使用java连接Mysql 和Using JDBC Statement Objects to Execute SQL