package?tool;

import?javax.swing.*;
import?java.awt.*;
import?java.io.File;
import?java.io.FileOutputStream;
import?java.io.IOException;
import?java.io.InputStream;
import?java.net.HttpURLConnection;
import?java.net.URL;
import?java.net.URLConnection;
/**
*?文件保存工具類(lèi)
?*?*/
public?class?FileSave??{
????public?static?void?saveFile（JProgressBar?jProgressBar?String?path?String?url?String?name?JLabel?notice?TextField?namelable?TextField?urllable）{

????????FileOutputStream?fos?=?null;
????????try?{
????????????//創(chuàng)建URL對(duì)象并指定所對(duì)應(yīng)的地址。
????????????URL?download?=?new?URL（url）;
????????????URLConnection?conn?=?download.openConnection（）;
????????????Long?connLength=conn.getContentLengthLong（）;
????????????ProgressBar?pbt?=?new?ProgressBar（connLengthjProgressBarnotice）;
????????????//建立輸入流獲取url的數(shù)據(jù)。
????????????InputStream?is?=?download.openStream（）;
????????????//建立文件輸出流來(lái)存儲(chǔ)資源。
????????????int?n=url.lastIndexOf（“.“）;
????????????String?type=url.substring（nurl.length（））;
????????????String?newpath=path+“/“+name+type;
????????????newpath?=?newpath.replaceAll（“\\\\“?“/“）;
????????????fos?=?new?FileOutputStream（newpath）;
????????????new?Thread（pbt）.start（）;
????????????int?i?;
//循環(huán)判斷如果is.read（）的值不等于-1，則說(shuō)明字節(jié)流中還存在數(shù)值，用fos進(jìn)行輸出。
????????????while（（i=is.read（））!=-1）{
????????????????fos.write（i）;
?????????????????pbt.updateProgress（i）;
????????????}
????????????notice.setText（“下載成功！“）;
????????????namelable.setText（““）;
????????????urllable.setText（““）;
????????}?catch?（IOException?e）?{
//?TODO?Auto-generated?catch?block
????????????e.printStackTrace（）;
????????}finally{
//最后流程結(jié)束后進(jìn)行自動(dòng)fos的關(guān)閉。
????????????try?{
????????????????assert?fos?!=?null;
????????????????fos.close（）;
????????????}?catch?（IOException?e）?{
//?TODO?Auto-generated?catch?block
????????????????e.printStackTrace（）;
????????????}

????????}

????}
}

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----
?????目錄???????????0??2018-07-01?20:36??.idea\
?????文件?????????205??2018-07-01?19:00??.idea\encodings.xml
?????目錄???????????0??2018-07-01?16:25??.idea\inspectionProfiles\
?????文件????????1444??2018-07-01?16:25??.idea\inspectionProfiles\Project_Default.xml
?????文件?????????273??2018-07-01?16:25??.idea\misc.xml
?????文件?????????262??2018-07-01?16:25??.idea\modules.xml
?????文件???????28017??2018-07-01?20:36??.idea\workspace.xml
?????目錄???????????0??2018-07-01?16:26??out\
?????目錄???????????0??2018-07-01?16:26??out\production\
?????目錄???????????0??2018-07-01?20:19??out\production\UrlDownload\
?????文件?????????952??2018-07-01?17:19??out\production\UrlDownload\Main.class
?????目錄???????????0??2018-07-01?20:22??out\production\UrlDownload\tool\
?????文件????????3434??2018-07-01?20:21??out\production\UrlDownload\tool\FileSave.class
?????文件????????2159??2018-07-01?20:22??out\production\UrlDownload\tool\ProgressBar.class
?????文件????????1349??2018-07-01?19:01??out\production\UrlDownload\tool\ProgressBarDownloader$MyPanel.class
?????文件????????5658??2018-07-01?19:01??out\production\UrlDownload\tool\ProgressBarDownloader.class
?????文件?????????766??2018-07-01?16:43??out\production\UrlDownload\tool\WindowUtil.class
?????目錄???????????0??2018-07-01?20:19??out\production\UrlDownload\View\
?????文件?????????858??2018-07-01?20:19??out\production\UrlDownload\View\MainView$1.class
?????文件?????????657??2018-07-01?20:19??out\production\UrlDownload\View\MainView$2.class
?????文件????????1098??2018-07-01?20:19??out\production\UrlDownload\View\MainView$3.class
?????文件????????1647??2018-07-01?20:19??out\production\UrlDownload\View\MainView$4.class
?????文件????????1172??2018-07-01?20:19??out\production\UrlDownload\View\MainView$FileThread.class
?????文件????????4210??2018-07-01?20:19??out\production\UrlDownload\View\MainView.class
?????目錄???????????0??2018-07-01?20:23??src\
?????目錄???????????0??2018-07-01?20:25??src\tool\
?????文件????????2080??2018-07-01?20:25??src\tool\FileSave.java
?????文件????????1856??2018-07-01?20:22??src\tool\ProgressBar.java
?????文件?????????314??2018-07-01?16:36??src\tool\WindowUtil.java
?????目錄???????????0??2018-07-01?20:25??src\View\
?????文件????????5565??2018-07-01?20:25??src\View\MainView.java
............此處省略1個(gè)文件信息