Based on multi-threaded HTTP download http protocol documentation available learn to use.

Java多线程与线程安全实践-基于Http协议的断点续传
...............................................\MultiThreadDownload
...............................................\...................\lib
...............................................\...................\...\commons-codec-1.3.jar
...............................................\...................\...\commons-httpclient-3.0.1.jar
...............................................\...................\...\commons-logging-1.1.jar
...............................................\...................\...\commons-logging-adapters-1.1.jar
...............................................\...................\...\commons-logging-api-1.1.jar
...............................................\...................\multiThreadDownload
...............................................\...................\...................\AboutAction.java
...............................................\...................\...................\BatchTaskAction.java
...............................................\...................\...................\BatchTaskDialog.java
...............................................\...................\...................\ConsoleDownloader.java
...............................................\...................\...................\ConsoleDownloadListener.java
...............................................\...................\...................\DeleteTaskAction.java
...............................................\...................\...................\DownloadAdapter.java
...............................................\...................\...................\DownloadEvent.java
...............................................\...................\...................\DownloadException.java
...............................................\...................\...................\DownloadListener.java
...............................................\...................\...................\ExitAction.java
...............................................\...................\...................\GUIDownloader.java
...............................................\...................\...................\GUIDownloadListener.java
...............................................\...................\...................\HttpTask.java
...............................................\...................\...................\NewAboutDialog.java
...............................................\...................\...................\NewTaskAction.java
...............................................\...................\...................\NewTaskDialog.java
...............................................\...................\...................\Task.java
...............................................\...................\...................\icons
...............................................\...................\...................\.....\about.gif
...............................................\...................\...................\.....\addBook.gif
...............................................\...................\...................\.....\checked.gif
...............................................\...................\...................\.....\count.gif
...............................................\...................\...................\.....\disabledAbout.gif
...............................................\...................\...................\.....\disabledAddBook.gif
...............................................\...................\...................\.....\disabledCount.gif
...............................................\...................\...................\.....\disabledNew.gif
...............................................\...................\...................\.....\disabledOpen.gif
...............................................\...................\...................\.....\disabledRemoveBook.gif
...............................................\...................\...................\.....\disabledSave.gif
...............................................\...................\.......

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