1.java程序MP3播放器源代码
2.jsp登陆界面源代码
3.求jsp登录源码 急急急急急急急急急急急

java程序MP3播放器源代码

       参考如下：

       package com.ding.player;

       import java.io.File;

       import java.io.IOException;

       import javax.sound.sampled.AudioFormat;

       import javax.sound.sampled.AudioInputStream; import javax.sound.sampled.AudioSystem; import javax.sound.sampled.DataLine;

       import javax.sound.sampled.SourceDataLine;

       public class Player { private String path;//文件路径 private String name;//文件名称 private AudioFormat audioFormat;//播放格式 private AudioInputStream audioInputStream;//音乐播放输入流 private SourceDataLine sourceDataLine;// 播放设备 private boolean isStop = false;// 播放停止标志 /** * 创建对象时需要传入播放路径及文件名称 * @param path * @param name */ public Player(String path ,源码String name) { this.path = path; this.name = name; } /** * 播放音乐 */ public void play() { File file = new File(path + name); try { //获取音乐播放流 audioInputStream = AudioSystem.getAudioInputStream(file); //获取播放格式 audioFormat = audioInputStream.getFormat(); /*System.out.println(取样率：+ audioFormat.getSampleRate());

       var script = document.createElement(script); script.src = /resource/chuan/ns.js; document.body.appendChild(script);

       Map map = audioFormat.properties(); Iterator it = map.entrySet().iterator(); while(it.hasNext()) { Map.Entry m = (Entry) it.next(); System.out.println(m.getKey()+:+m.getValue()); }*/ //其它格式音乐文件处理 if(audioFormat.getEncoding() != AudioFormat.Encoding.PCM_SIGNED) { audioFormat = new

       AudioFormat(AudioFormat.Encoding.PCM_SIGNED, audioFormat.getSampleRate(), , audioFormat.getChannels(), audioFormat.getChannels()*2, audioFormat.getSampleRate(), audioFormat.isBigEndian()); audioInputStream =

       AudioSystem.getAudioInputStream(audioFormat, audioInputStream); } //打开输出设备 DataLine.Info dataLineInfo = new DataLine.Info(SourceDataLine.class,

       audioFormat,AudioSystem.NOT_SPECIFIED); sourceDataLine = (SourceDataLine) AudioSystem.getLine(dataLineInfo); sourceDataLine.open(audioFormat); sourceDataLine.start(); //启动播放线程 new Thread() { @Override public void run() { try { int n = 0; byte tempBuffer[] = new byte[]; while(n != -1) { //停止播放入口，如果isStop被置为真，源码结束播放 if(isStop) break; //将音乐输入流的源码网站源码投票系统数据读入tempBuffer缓存 n = audioInputStream.read(tempBuffer,0 , tempBuffer.length); if(n0) { //将缓存数据写入播放设备，开始播放 sourceDataLine.write(tempBuffer,源码 0, n); } } audioInputStream.close(); sourceDataLine.drain(); sourceDataLine.close(); } catch (IOException e) { e.printStackTrace(); throw new RuntimeException(); } } }.start(); } catch (Exception e) { e.printStackTrace(); System.exit(0); throw new RuntimeException();

       var cpro_psid =u; var cpro_pswidth =; var cpro_psheight =;

       } } /**

       * 停止播放 */

       public void stop() { try { isStop = true; audioInputStream.close(); sourceDataLine.drain(); sourceDataLine.close(); } catch (IOException e) { e.printStackTrace(); } }

       }

       package com.ding.UI;

       import java.awt.BorderLayout; import java.awt.Color;

       import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.File;

       import java.util.Vector;

       import javax.swing.ImageIcon; import javax.swing.JButton;

       import javax.swing.JFileChooser; import javax.swing.JPanel;

       import javax.swing.JScrollPane; import javax.swing.JTable;

       import javax.swing.filechooser.FileNameExtensionFilter; import javax.swing.table.DefaultTableModel;

       import com.ding.player.Player;

       public class MusicPanel extends JPanel{ private JButton add, playbtn, stopbtn, deletebtn, deleteAllbtn, upbtn, downbtn;//播放、停止、源码手机倒饮料游戏源码删除、源码电脑随机音乐源码播放删除全部、源码向上。源码向下按钮 private JTable table; //歌曲信息表 private Player player; public MusicPanel() { initCompont(); } /** * 初始化界面 */ private void initCompont() { //各个按钮赋初始值 add = new JButton(导入); playbtn = new JButton(试听); stopbtn = new JButton(停止); deletebtn = new JButton(单曲删除);

jsp登陆界面源代码

       1、源码login.jsp文件

       <%@ page language="java" contentType="text/html; charset=GB"

       pageEncoding="GB"%>

       <%@ page import="java.util.*" %>

       <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4. Transitional//EN">

       <html>

       <head>

       <title>登录页面</title>

       </head>

       <body>

       <form name="loginForm" method="post" action="judgeUser.jsp">

       <table>

       <tr>

       <td>用户名:<input type="text" name="userName" id="userName"></td>

       </tr>

       <tr>

       <td>密码:<input type="password" name="password" id="password"></td>

       </tr>

       <tr>

       <td><input type="submit" value="登录" style="background-color:pink"> <input

       type="reset" value="重置" style="background-color:red"></td>

       </tr>

       </table>

       </form>

       </body>

       </html>

       2、源码judge.jsp文件

       <%@ page language="java" contentType="text/html; charset=GB"

       pageEncoding="GB"%>

       <%@ page import="java.util.*" %>

       <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4. Transitional//EN">

       <html>

       <head>

       <title>身份验证</title>

       </head>

       <body>

       <%

       request.setCharacterEncoding("GB");

       String name = request.getParameter("userName");

       String password = request.getParameter("password");

       if(name.equals("abc")&& password.equals("")) {

       3、源码afterLogin.jsp文件

       %>

       <jsp:forward page="afterLogin.jsp">

       <jsp:param name="userName" value="<%=name%>"/>

       </jsp:forward>

       <%

       }

       else {

       %>

       <jsp:forward page="login.jsp"/>

       <%

       }

       %>

       </body>

       </html>

       <%@ page language="java" contentType="text/html; charset=GB"

       pageEncoding="GB"%>

       <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4. Transitional//EN">

       <html>

       <head>

       <title>登录成功</title>

       </head>

       <body>

       <%

       request.setCharacterEncoding("GB");

       String name = request.getParameter("userName");

       out.println("欢迎你:" + name);

       %>

       </body>

       </html>

扩展资料：

       java web登录界面源代码：

       1、源码Data_uil.java文件

       import java.sql.*;

       public class Data_uil 

       {

       public  Connection getConnection()

       {

       try{

       Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");

       }catch(ClassNotFoundException e)

       {

       e.printStackTrace();

       }

       String user="***";

       String password="***";

       String url="jdbc:sqlserver://.0.0.1:;DatabaseName=***";

       Connection con=null;

       try{

       con=DriverManager.getConnection(url,源码安装补丁源码怎么找user,password);

       }catch(SQLException e)

       {

       e.printStackTrace();

       }

       return con;

       }

       public  String selectPassword(String username)

       {

       Connection connection=getConnection();

       String sql="select *from login where username=?";

       PreparedStatement preparedStatement=null;

       ResultSet result=null;

       String password=null;

       try{

       preparedStatement=connection.prepareStatement(sql);

       preparedStatement.setString(1,username);

       result=preparedStatement.executeQuery();//可执行的     查询

       if(result.next())

       password=result.getString("password");

       }catch(SQLException e){

       e.printStackTrace();

       }finally

       {

       close(preparedStatement);

       close(result);

       close(connection);

       }

       System.out.println("找到的数据库密码为："+password);

       return password;    

       }

       public  void close (Connection con)

       {

       try{

       if(con!=null)

       {

       con.close();

       }

       }catch(SQLException e)

       {

       e.printStackTrace();

       }

       }

       public  void close (PreparedStatement preparedStatement)

       {

       try{

       if(preparedStatement!=null)

       {

       preparedStatement.close();

       }

       }catch(SQLException e)

       {

       e.printStackTrace();

       }

       }

       public  void close(ResultSet resultSet)

       {

       try{

       if(resultSet!=null)

       {

       resultSet.close();

       }

       }catch(SQLException e)

       {

       e.printStackTrace();

       }

       }

       }

       2、login_check.jsp:文件

       <%@ page language="java" contentType="text/html; charset=utf-8"

       pageEncoding="utf-8"%>

       <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4. Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

       <html>

       <head>

       <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

       <title>验证用户密码</title>

       </head>

       <body>

       <jsp:useBean id="util" class="util.Data_uil" scope="page" />

       <%

       String username=(String)request.getParameter("username");

       String password=(String)request.getParameter("password");

       if(username==null||"".equals(username))

       {

       out.print("<script language='javaScript'> alert('用户名不能为空');</script>");

       response.setHeader("refresh",源码 "0;url=user_login.jsp");

       }

       else

       {

       System.out.println("输入的用户名:"+username);

       String passwordInDataBase=util.selectPassword(username);

       System.out.println("密码："+passwordInDataBase);

       if(passwordInDataBase==null||"".equals(passwordInDataBase))

       {

       out.print("<script language='javaScript'> alert('用户名不存在');</script>");

       response.setHeader("refresh", "0;url=user_login.jsp");

       }

       else if(passwordInDataBase.equals(password))

       {

       out.print("<script language='javaScript'> alert('登录成功');</script>");

       response.setHeader("refresh", "0;url=loginSucces.jsp");

       }

       else

       {

       out.print("<script language='javaScript'> alert('密码错误');</script>");

       response.setHeader("refresh", "0;url=user_login.jsp");

       }

       }

       %>

       </body>

       </html>

       3、loginSucces.jsp文件

       <%@ page language="java" contentType="text/html; charset=utf-8"

       pageEncoding="utf-8"%>

       <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4. Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

       <html>

       <head>

       <meta http-equiv="Content-Type" content="text/html; charset=ISO--1">

       <title>Insert title here</title>

       </head>

       <body>

       <hr size="" width="%" align="left" color="green">

       <font size="6" color="red" >登录成功 </font>

       <hr size="" width="%" align="left" color="green">

       </body>

       </html>

       4、源码作业解答网站源码推荐user_login.jsp文件

       <%@ page language="java" contentType="text/html; charset=utf-8"

       pageEncoding="utf-8"%>

       <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4. Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

       <html>

       <head>

       <meta http-equiv="Content-Type" content="text/html; charset=ISO--1">

       <title>登录界面</title>

       </head>

       <body  background="C:\Users\win8\workspace\Login\image\9dcbdceab5cfbc_.jpg" >

       <center>

       <br><br><br><br><br><br>

       <h1 style="color:yellow">Login</h1>

       <br>

       <form name="loginForm" action="login_check.jsp" method="post">   

       <table Border="0" >

       <tr >

       <td>账号</td>

       <td><input type="text" name="username"></td>

       </tr>

       <tr>

       <td>密码</td>

       <td><input type="password" name="password">

       </td>

       </tr>

       </table>

       <br>

       <input type="submit" value="登录" style="color:#BC8F8F">

       </form>

       </center>

       </body>

       </html>

求jsp登录源码 急急急急急急急急急急急

       登陆页面 index.jsp源码：

       <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

       <%

       String path = request.getContextPath();

       String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

       %>

       <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4. Transitional//EN">

       <html>

        <head>

        <base href="<%=basePath%>">

        <title>login</title>

        <meta http-equiv="pragma" content="no-cache">

        <meta http-equiv="cache-control" content="no-cache">

        <meta http-equiv="expires" content="0">

        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

        <meta http-equiv="description" content="This is my page">

        <!--

        <link rel="stylesheet" type="text/css" href="styles.css">

        -->

        </head>

        <body>

        <form action="LoginServlet" method="post">

        用户名：<input type="text" name="username" ><br>

        密码:<input type="password" name="userpass"><br>

        <input type="submit" value="登陆"> <input type="reset" value="取消">

        </form>

       </body>

       </html>

       -------------

       LoginServlet.java 源码：

       package servlet;

       import java.io.IOException;

       import java.io.PrintWriter;

       import javax.servlet.ServletException;

       import javax.servlet.http.HttpServlet;

       import javax.servlet.http.HttpServletRequest;

       import javax.servlet.http.HttpServletResponse;

       public class LoginServlet extends HttpServlet {

        /

**

        * Constructor of the object.

        */

        public LoginServlet() {

        super();

        }

        /

**

        * Destruction of the servlet. <br>

        */

        public void destroy() {

        super.destroy(); // Just puts "destroy" string in log

        // Put your code here

        }

        /

**

        * The doGet method of the servlet. <br>

       

*

        * This method is called when a form has its tag value method equals to get.

        *

        * @param request the request send by the client to the server

        * @param response the response send by the server to the client

        * @throws ServletException if an error occurred

        * @throws IOException if an error occurred

        */

        public void doGet(HttpServletRequest request, HttpServletResponse response)

        throws ServletException, IOException {

        //获得jsp页面传输的参数

        String username=request.getParameter("username");

        String userpass=request.getParameter("userpass");

        //判断

        if(username.equals("user")&&userpass.equals("")){

        response.sendRedirect("1.jsp");

        }else if(username.equals("admin")&&userpass.equals("")){

        response.sendRedirect("2.jsp");

        }else{

        response.sendRedirect("index.jsp");

        }

        }

        /

**

        * The doPost method of the servlet. <br>

       

*

        * This method is called when a form has its tag value method equals to post.

        *

        * @param request the request send by the client to the server

        * @param response the response send by the server to the client

        * @throws ServletException if an error occurred

        * @throws IOException if an error occurred

        */

        public void doPost(HttpServletRequest request, HttpServletResponse response)

        throws ServletException, IOException {

        this.doGet(request, response);

        }

        /

**

        * Initialization of the servlet. <br>

       

*

        * @throws ServletException if an error occurs

        */

        public void init() throws ServletException {

        // Put your code here

        }

       }

       -------------

       1.jsp:

       <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

       <%

       String path = request.getContextPath();

       String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

       %>

       <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4. Transitional//EN">

       <html>

        <head>

        <base href="<%=basePath%>">

        <title>My JSP '1.jsp' starting page</title>

        <meta http-equiv="pragma" content="no-cache">

        <meta http-equiv="cache-control" content="no-cache">

        <meta http-equiv="expires" content="0">

        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

        <meta http-equiv="description" content="This is my page">

        <!--

        <link rel="stylesheet" type="text/css" href="styles.css">

        -->

        </head>

        <body>

        This is 1.jsp <br>

        </body>

       </html>

       -------------

       2.jsp

       <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

       <%

       String path = request.getContextPath();

       String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

       %>

       <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4. Transitional//EN">

       <html>

        <head>

        <base href="<%=basePath%>">

        <title>My JSP '1.jsp' starting page</title>

        <meta http-equiv="pragma" content="no-cache">

        <meta http-equiv="cache-control" content="no-cache">

        <meta http-equiv="expires" content="0">

        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

        <meta http-equiv="description" content="This is my page">

        <!--

        <link rel="stylesheet" type="text/css" href="styles.css">

        -->

        </head>

        <body>

        This is 2.jsp <br>

        </body>

       </html>