java用jdbc无法连接指定的SQL数据库

package com.test;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import org.apache.log4j.Logger;

public class Test {

private static Logger logger = Logger.getLogger(Test.class.getName());

public static void main(String[] args) {
    Connection conn = null;
    try {
        Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
    } catch (Exception e) {
        // TODO: handle exception
        System.out.println();
    }
    // 建立连接
    try {
        String name="ccz";
        conn = DriverManager.getConnection(
                "jdbc:sqlserver://localhost:1433;databaseName=Hotel", "ccz",
                "123456");
        System.out.println("数据库连接成功!");
    } catch (Exception e) {
        e.printStackTrace();
        System.out.println("连接失败");
    } finally {
        try {
            if (null != conn) {
                conn.close();
                System.out.println("关闭成功！");
            }
        } catch (Exception e2) {
            logger.error(e2);
        }
    }

}

}

D:\Workspaces\工具\log4j-1.2.17.jar
D:\Workspaces\工具\sqljdbc4.jar
这两个包也导了，但是就是报错
com.microsoft.sqlserver.jdbc.SQLServerException: 用户 'ccz' 登录失败。 ClientConnectionId:c1574541-072d-4979-b929-8377a8079e97
连接失败
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:216)
at com.microsoft.sqlserver.jdbc.TDSTokenHandler.onEOF(tdsparser.java:254)
at com.microsoft.sqlserver.jdbc.TDSParser.parse(tdsparser.java:84)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.sendLogon(SQLServerConnection.java:2908)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.logon(SQLServerConnection.java:2234)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.access$000(SQLServerConnection.java:41)
at com.microsoft.sqlserver.jdbc.SQLServerConnection$LogonCommand.doExecute(SQLServerConnection.java:2220)
at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:5696)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:1715)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1326)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:991)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:827)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1012)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at com.test.Test.main(Test.java:23)