mirror of https://e.coding.net/circlecloud/Yum.git
200 lines
4.6 KiB
Java
200 lines
4.6 KiB
Java
/**
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*
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*/
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package cn.citycraft.Yum.manager;
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import java.io.BufferedInputStream;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.net.MalformedURLException;
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import java.net.URL;
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import org.bukkit.Bukkit;
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import org.bukkit.command.CommandSender;
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import org.bukkit.plugin.Plugin;
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/**
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* 下载管理类
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*
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* @author 蒋天蓓
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* 2015年8月21日下午6:08:09
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*/
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public class DownloadManager {
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Plugin plugin;
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public DownloadManager(Plugin main) {
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this.plugin = main;
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}
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/**
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* 从地址获得文件名称
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*
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* @param url
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* - 地址
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* @return 文件名称
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*/
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public String getFileName(String url) {
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int end = url.lastIndexOf('/');
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return url.substring(end + 1);
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}
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/**
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* 从地址获得文件名称
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*
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* @param url
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* - 地址
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* @return 文件名称
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*/
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public String getFileName(URL url) {
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return getFileName(url.getFile());
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}
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private String getPer(int per) {
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StringBuilder sb = new StringBuilder();
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for (int i = 0; i < 11; i++) {
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if (per > i) {
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sb.append("==");
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} else if (per == i) {
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sb.append("> ");
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} else {
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sb.append(" ");
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}
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}
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return sb.toString();
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}
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/**
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* 从网络下载文件
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*
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* @param urlstring
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* - 下载地址
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* @return 是否成功
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*/
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public boolean run(String urlstring) {
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return run(null, urlstring);
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}
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/**
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* 从网络下载文件
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*
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* @param sender
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* - 命令发送者
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* @param urlstring
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* - 下载地址
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* @return 是否成功
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*/
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public boolean run(CommandSender sender, String urlstring) {
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return run(sender, urlstring, new File("plugins", getFileName(urlstring)));
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}
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/**
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* 从网络下载文件
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*
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* @param sender
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* - 命令发送者
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* @param urlstring
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* - 下载地址
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* @param file
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* - 保存文件
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* @return 是否成功
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*/
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public boolean run(CommandSender sender, String urlstring, File file) {
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URL url;
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try {
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url = new URL(urlstring);
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return run(sender, url, file);
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} catch (MalformedURLException e) {
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sender.sendMessage("§4错误: §c无法识别的URL地址...");
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return false;
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}
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}
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/**
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* 从网络下载文件
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*
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* @param sender
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* - 命令发送者
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* @param url
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* - 下载地址
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* @param file
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* - 保存文件
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* @return 是否成功
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*/
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public boolean run(CommandSender sender, URL url, File file) {
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BufferedInputStream in = null;
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FileOutputStream fout = null;
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if (sender == null) {
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sender = Bukkit.getConsoleSender();
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}
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try {
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sender.sendMessage("§6开始下载: §3" + getFileName(url));
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sender.sendMessage("§6下载地址: §3" + url.toString());
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int fileLength = url.openConnection().getContentLength();
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sender.sendMessage("§6文件长度: §3" + fileLength);
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in = new BufferedInputStream(url.openStream());
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if (!file.getParentFile().exists()) {
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file.getParentFile().mkdirs();
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sender.sendMessage("§6创建新目录: §d" + file.getParentFile().getAbsolutePath());
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}
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if (file.exists()) {
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file.delete();
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}
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file.createNewFile();
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sender.sendMessage("§6创建新文件: §d" + file.getAbsolutePath());
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fout = new FileOutputStream(file);
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byte[] data = new byte[1024];
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long downloaded = 0L;
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int count;
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while ((count = in.read(data)) != -1) {
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downloaded += count;
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fout.write(data, 0, count);
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int percent = (int) (downloaded * 100L / fileLength);
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if (percent % 10 == 0) {
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sender.sendMessage(String.format("§6已下载: §a" + getPer(percent / 10) + " %s%%", percent));
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}
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}
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sender.sendMessage("§6文件: §a" + file.getName() + " 下载完成!");
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return true;
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} catch (Exception ex) {
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sender.sendMessage("§6文件: §c" + file.getName() + "下载失败!");
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ex.printStackTrace();
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return false;
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} finally {
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try {
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if (in != null) {
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in.close();
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fout.close();
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}
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} catch (Exception ex) {
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}
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}
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}
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/**
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* 从网络下载文件
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*
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* @param urlstring
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* - 下载地址
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* @param file
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* - 保存文件
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* @return 是否成功
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*/
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public boolean run(String urlstring, File file) {
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return run(null, urlstring, file);
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}
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/**
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* 从网络下载文件
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*
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* @param url
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* - 下载地址
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* @param file
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* - 保存文件
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* @return 是否成功
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*/
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public boolean run(URL url, File file) {
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return run(null, url, file);
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}
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}
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