资讯

精准传达 • 有效沟通

从品牌网站建设到网络营销策划，从策略到执行的一站式服务

网站建设 >

查看其它板块

在Java项目中使用swing制作一个音乐播放器

这期内容当中小编将会给大家带来有关在Java项目中使用 swing制作一个音乐播放器，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

公司主营业务：网站设计制作、成都做网站、移动网站开发等业务。帮助企业客户真正实现互联网宣传，提高企业的竞争能力。创新互联是一支青春激扬、勤奋敬业、活力青春激扬、勤奋敬业、活力澎湃、和谐高效的团队。公司秉承以“开放、自由、严谨、自律”为核心的企业文化，感谢他们对我们的高要求，感谢他们从不同领域给我们带来的挑战，让我们激情的团队有机会用头脑与智慧不断的给客户带来惊喜。创新互联推出贵定免费做网站回馈大家。

实现代码： 

package com.baiting;

import java.awt.Dimension;
import java.awt.Toolkit;

import com.baiting.menu.CloseWindow;

/**
 * 窗口
 * @author lmq
 *
 */
public abstract class MusicWindow extends Music {
 
 protected MusicFrame musicFrame;
 
 private String title;
 private int locationX;
 private int locationY;
 
 public MusicWindow() {
 title = getConfigMap().get("title").toString();
 defaultLocation();
 }
 
 public MusicWindow(String title,int width,int height) {
 this.title = title;
 setWidth(width);
 setHeight(height);
 defaultLocation();
 }
 
 public MusicWindow(String title,int width,int height,int locationX,int locationY) {
 this.title = title;
 setWidth(width);
 setHeight(height);
 this.locationX = locationX;
 this.locationY = locationY;
 }
 
 private void defaultLocation() {
 Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
 locationX = (screenSize.width-getWidth())/2;
 locationY = (screenSize.height-getHeight())/2;
 }
 
 protected MusicFrame createWindow() {
 musicFrame = new MusicFrame();
 musicFrame.setTitle(title);
 musicFrame.setSize(getWidth(), getHeight());
 //musicFrame.setLocation(locationX, locationY);
 musicFrame.setLocationRelativeTo(null);
 musicFrame.addWindowListener(new CloseWindow());
 musicFrame.setMinimumSize(new Dimension(600, 450));
 musicFrame.setVisible(true);
 return musicFrame;
 }

 public String getTitle() {
 return title;
 }

 public void setTitle(String title) {
 this.title = title;
 }

 public int getLocationX() {
 return locationX;
 }

 public void setLocationX(int locationX) {
 this.locationX = locationX;
 }

 public int getLocationY() {
 return locationY;
 }

 public void setLocationY(int locationY) {
 this.locationY = locationY;
 }
 
 

 
}

 看看在线下载歌曲的代码：

package com.baiting.service;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import com.baiting.bean.DownFailSong;
import com.baiting.bean.DownedSong;
import com.baiting.http.DownloadSong;
import com.baiting.util.StringUtil;

public class DownloadSongService extends MusicService {

 private static DownloadSongService instance;
 private static Thread downloadThread;
 
 private DownloadSongService() {
 
 }
 
 public static DownloadSongService getInstance() {
 if(null == instance) {
  instance = new DownloadSongService();
 }
 return instance;
 }
 
 public void startDownload() {
 if(null == downloadThread) {
  downloadThread = new Thread(new DownloadSong());
  downloadThread.start();
 } else {
  if(!downloadThread.isAlive()) {
  downloadThread.interrupt();
  downloadThread = null;
  downloadThread = new Thread(new DownloadSong());
  downloadThread.start();
  }
 }
 }
 
 
 public List getDownedSongAll() {
 File downedListFile = new File(getBasePath()+DOWNLOAD_PATH+"downed.list");
 if(!downedListFile.exists()) {
  try {
  log.info("downed.list文件不存在，正在创建....");
  downedListFile.createNewFile();
  log.info("downed.list文件创建[成功]....");
  } catch (IOException e) {
  log.info("downed.list文件创建[失败--异常]....");
  e.printStackTrace();
  downedListFile = null;
  return null;
  }
 }
 try {
  BufferedReader reader = new BufferedReader(new FileReader(downedListFile));
   String line = reader.readLine();
   List list = new ArrayList();
   int count = 0;
   if(!StringUtil.isEmpty(line)) {
    while(line != null) {
    count++;
    String content = line.replace("\n", "").trim();
   String[] cols = content.split(SEPARATOR);
   if(cols.length>5) {
   DownedSong downedSong = new DownedSong();
   downedSong.setNo(count);
   downedSong.setFileName(cols[0].trim());
   downedSong.setSongName(cols[1].trim());
   downedSong.setSinger(cols[2].trim());
   downedSong.setFileSize(Double.parseDouble(cols[3].trim()));
   downedSong.setPath(cols[4].trim());
   downedSong.setCreateTime(cols[5].trim());
   list.add(downedSong);
   downedSong = null;
   }
   line = reader.readLine();
    }
   }
   reader.close();
   reader = null;
   if(list.size()>0) {
    return list;
   }
   return null;
 } catch (FileNotFoundException e) {
  log.info("文件不存在...");
  e.printStackTrace();
  return null;
 } catch (IOException e) {
  e.printStackTrace();
  return null;
 } finally {
  downedListFile = null;
 }
 }
 
 
 /**
 * 扫描目录---未完成
 * @return
 */
 public List getDownedSongByDir() {
 String downedSongDir = getDownloadSongPath();
 File downedDir = new File(downedSongDir);
 if(downedDir.exists() && downedDir.isDirectory()) {
  String[] fileList = downedDir.list();
  for (int i = 0; i < fileList.length; i++) {
  
  }
 }
 return null;
 }
 
 
 /**
 * 判断歌曲是否存在(通过歌曲名和歌手)
 * @param songName
 * @param singer
 * @return
 */
 public boolean existSongByInfo(String songName,String singer) {
 List list = getDownedSongAll();
 if(null == list || list.size()<1) {
  return false;
 } 
 boolean flag = false;
 for(DownedSong downedSong : list) {
  if(downedSong.getSongName().equals(songName) && downedSong.getSinger().equals(singer)) {
  flag = true;
  break;
  }
 }
 list = null;
 return flag;
 }
 
 /**
 * 已下载列表中加入新数据
 * @param downedSong
 * @return
 */
 public int addDownedSong(DownedSong downedSong) {
 File downedListFile = new File(getBasePath()+DOWNLOAD_PATH+"downed.list");
 if(!downedListFile.exists()) {
  try {
  log.info("downed.list文件不存在，正在创建....");
  downedListFile.createNewFile();
  log.info("downed.list文件创建[成功]....");
  } catch (IOException e) {
  log.info("downed.list文件创建[失败--异常]....");
  e.printStackTrace();
  downedListFile = null;
  return -1;
  }
 }
 if(null != downedSong) {
  String contents = downedSong.getFileName()+SEPARATOR+
  downedSong.getSongName()+SEPARATOR+downedSong.getSinger()+SEPARATOR+
  downedSong.getFileSize()+SEPARATOR+downedSong.getPath()+SEPARATOR+
  downedSong.getCreateTime()+"\n";
  try {
  BufferedWriter writer = new BufferedWriter(new FileWriter(downedListFile,true));
  writer.write(contents);
  writer.flush();
  writer.close();
  writer = null;
  List lists = getDownedSongAll();
  int count = lists.size();
  lists = null;
  return count;
  } catch (IOException e) {
  log.info(downedListFile.getName()+"文件信息写入[失败---异常]");
  e.printStackTrace();
  return -1;
  } finally {
  downedListFile = null;
  downedSong = null; 
  }
 }
 return -1;
 }
 
 
 
 
 /**
 * 获取所有下载失败的歌曲
 * @return
 */
 public List getDownFailSongAll() {
 File downedListFile = new File(getBasePath()+DOWNLOAD_PATH+"downFail.list");
 if(!downedListFile.exists()) {
  try {
  log.info("downFail.list文件不存在，正在创建....");
  downedListFile.createNewFile();
  log.info("downFail.list文件创建[成功]....");
  } catch (IOException e) {
  log.info("downFail.list文件创建[失败--异常]....");
  e.printStackTrace();
  downedListFile = null;
  return null;
  }
 }
 try {
  BufferedReader reader = new BufferedReader(new FileReader(downedListFile));
   String line = reader.readLine();
   List list = new ArrayList();
   int count = 0;
   if(!StringUtil.isEmpty(line)) {
    while(line != null) {
    count++;
    String content = line.replace("\n", "").trim();
   String[] cols = content.split(SEPARATOR);
   if(cols.length>3) {
   DownFailSong failSong = new DownFailSong();
   failSong.setNo(count);
   failSong.setSongName(cols[0].trim());
   failSong.setSinger(cols[1].trim());
   failSong.setFormat(cols[2].trim());
   failSong.setFailTime(cols[3].trim());
   list.add(failSong);
   }
   line = reader.readLine();
    }
   }
   reader.close();
   reader = null;
   if(list.size()>0) {
    return list;
   }
   return null;
 } catch (FileNotFoundException e) {
  log.info("文件不存在...");
  e.printStackTrace();
  return null;
 } catch (IOException e) {
  e.printStackTrace();
  return null;
 } catch (Exception e) {
  e.printStackTrace();
  return null;
 } finally {
  downedListFile = null;
 }
 }
 
 
 /**
 * 已下载列表中加入新数据
 * @param downedSong
 * @return
 */
 public int addDownFailSong(DownFailSong downFailSong) {
 File downFailListFile = new File(getBasePath()+DOWNLOAD_PATH+"downFail.list");
 if(!downFailListFile.exists()) {
  try {
  log.info("downFail.list文件不存在，正在创建....");
  downFailListFile.createNewFile();
  log.info("downFail.list文件创建[成功]....");
  } catch (IOException e) {
  log.info("downFail.list文件创建[失败--异常]....");
  e.printStackTrace();
  downFailSong = null;
  return -1;
  }
 }
 if(null != downFailSong) {
  String contents = downFailSong.getSongName()+SEPARATOR+downFailSong.getSinger()+SEPARATOR+
  downFailSong.getFormat()+SEPARATOR+downFailSong.getFailTime()+"\n";
  try {
  BufferedWriter writer = new BufferedWriter(new FileWriter(downFailListFile,true));
  writer.write(contents);
  writer.flush();
  writer.close();
  List lists = getDownFailSongAll();
  return lists.size();
  } catch (IOException e) {
  log.info(downFailListFile.getName()+"文件信息写入[失败---异常]");
  e.printStackTrace();
  return -1;
  } catch (Exception e) {
  e.printStackTrace();
  return -1;
  } finally {
  downFailSong = null;
  contents = null;
  }
 }
 return -1;
 }
 
 
 /**
 * 删除下载失败的歌曲列表
 * @param no
 * @return
 */
 public boolean delDownFailSong(int no) {
 List lists = getDownFailSongAll();
 if(null != lists && lists.size()>0 && lists.size()>=no && no>0) {
  DownFailSong downFailSong = lists.get(no-1);
  log.info("删除下载失败的歌曲《"+downFailSong.getSongName()+"》");
  lists.remove(downFailSong);
  
  StringBuffer strBuff = new StringBuffer();
  if(null != lists && lists.size()>0) {
  for(DownFailSong fs : lists) {
   String contents = fs.getSongName()+SEPARATOR+fs.getSinger()+SEPARATOR+
   fs.getFormat()+SEPARATOR+fs.getFailTime()+"\n";
   strBuff.append(contents);
  }
  } else {
  strBuff.append("");
  }
  File downFailListFile = new File(getBasePath()+DOWNLOAD_PATH+"downFail.list");
  if(!downFailListFile.exists()) {
  try {
   log.info("downFail.list文件不存在，正在创建....");
   downFailListFile.createNewFile();
   log.info("downFail.list文件创建[成功]....");
  } catch (IOException e) {
   log.info("downFail.list文件创建[失败--异常]....");
   e.printStackTrace();
   return false;
  } finally {
   lists = null;
  }
  }
  try {
  BufferedWriter writer = new BufferedWriter(new FileWriter(downFailListFile,false));
  writer.write(strBuff.toString());
  writer.flush();
  writer.close();
  log.info("删除下载失败的歌曲《"+downFailSong.getSongName()+"》--成功---");
  return true;
  } catch (IOException e) {
  log.info(downFailListFile.getName()+"文件信息写入[失败---异常]");
  e.printStackTrace();
  return false;
  } finally {
  lists = null;
  downFailListFile = null;
  downFailSong = null;
  }
 }
 return false;
 }
}

上述就是小编为大家分享的在Java项目中使用 swing制作一个音乐播放器了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注创新互联行业资讯频道。


网页题目：在Java项目中使用swing制作一个音乐播放器
当前路径：http://www.cdkjz.cn/article/gjchoh.html
返回首页 了解更多建站资讯

相关资讯

多年建站经验

多一份参考，总有益处

联系快上网，免费获得专属《策划方案》及报价

咨询相关问题或预约面谈，可以通过以下方式与我们联系

大客户专线   成都：13518219792   座机：028-86922220

在线咨询 提交需求
友情链接 交换友情链接
品牌设计成都响应式网站建设公司响应式网站成都网站建设成都水电改造成都棕树机房成都商务茶叶销售成都小程序定制开发公司平武做网站犀浦封阳台

成都网站建设公司地址：成都市青羊区太升南路288号锦天国际A座10层 建设咨询028-86922220

成都快上网科技有限公司-四川网站建设设计公司 | 蜀ICP备19037934号 Copyright 2020,ALL Rights Reserved cdkjz.cn | 成都网站建设 | © Copyright 2020版权所有.

专家团队为您提供成都网站建设,成都网站设计,成都品牌网站设计,成都营销型网站制作等服务,成都建网站就找快上网！ | 成都网站建设哪家好？ | 网站建设地图