package?cn.itcast.jdbc;

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

public?class?Dbunit?{
	
	
	private?static?final?String?URl?="jdbc:mysql://localhost:3306/admin";
	private?static?final?String?USRE="admin";
	private?static?final?String?PASSWORD="admin";
	
	public?static?void?main(String[]?args)?throws?Exception?{
		
		Class.forName("com.mysql.jdbc.Driver");
		
		Connection?conn?=?DriverManager.getConnection(URl,?USRE,?PASSWORD);
		
		Statement?stmt?=?conn.createStatement();
		ResultSet?rs?=?stmt.executeQuery("select?*?from?students");
		
		while(rs.next()){
			System.out.println(rs.getInt("ID")?+?rs.getString("name"));
		}
	}

}



Exception?in?thread?"main"?java.sql.SQLException:?Access?denied?for?user?'admin'@'localhost'?(using?password:?NO)
	at?com.mysql.jdbc.SQLError.createSQLException(SQLError.java:957)
	at?com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3878)
	at?com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3814)
	at?com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:871)
	at?com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1694)
	at?com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1215)
	at?com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2255)
	at?com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2286)
	at?com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2085)
	at?com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:795)
	at?com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
	at?sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native?Method)
	at?sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown?Source)
	at?sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown?Source)
	at?java.lang.reflect.Constructor.newInstance(Unknown?Source)
	at?com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
	at?com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:400)
	at?com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:327)
	at?java.sql.DriverManager.getConnection(Unknown?Source)
	at?java.sql.DriverManager.getConnection(Unknown?Source)
	at?cn.itcast.jdbc.Dbunit.main(Dbunit.java:19)