1。通过http请求进行静态资源，首先确定文件的URL地址，然后通过URLConnection进行连接，然后通过读取连接中返回的InputStream，再通过文件输出流FileOutputStream进行存储（下载）。
2.通过FTP或SFTP进行远程文件的下载，具体实现有很多第三方的包，百度即可。
strUrl为文件地址，fileName为文件在本地的保存路径，试试吧~public static void writeFile(String strUrl, String fileName) {
URL url = null
try {
url = new URL(strUrl)
} catch (MalformedURLException e2) {
e2.printStackTrace()
}
InputStream is = null
try {
is = url.openStream()
} catch (IOException e1) {
e1.printStackTrace()
}
OutputStream os = null
try {
os = new FileOutputStream( fileName)
int bytesRead = 0
byte[] buffer = new byte[8192]
while ((bytesRead = is.read(buffer, 0, 8192)) != -1) {
os.write(buffer, 0, bytesRead)
}
System.out.println("下载成功："+strUrl)
} catch (FileNotFoundException e) {
e.printStackTrace()
} catch (IOException e) {
e.printStackTrace()
}
}
