android 实现下载文件

核心提示：Java代码/*** 从网上下载*@param url 下载路径*@param outputFile 创建本地保存流的文件*@return* @return 下载失败返回1(比如没有网络等情况)下载成功返回0*/public static int downloadFile(String urlPsth, File ou

Java代码

/**

* 从网上下载

*@param url 下载路径

*@param outputFile 创建本地保存流的文件

*@return

* @return 下载失败返回1(比如没有网络等情况)下载成功返回0

*/

public static int downloadFile(String urlPsth, File outputFile) {

int result=0;

try {

URL url = new URL(urlPsth);

HttpURLConnection conn =(HttpURLConnection) url.openConnection();

conn.setDoInput(true);

conn.connect();

if( conn.getResponseCode() == HttpURLConnection.HTTP_OK)

{

InputStream is = conn.getInputStream();

FileOutputStream fos = new FileOutputStream(outputFile);

byte[] bt = new byte[1024];

int i = 0;

while ((i = is.read(bt)) > 0) {

fos.write(bt, 0, i);

}

fos.flush();

fos.close();

is.close();

}else {

result=1;

}

} catch (FileNotFoundException e) {

result=1;

} catch (IOException e) {

result=1;

}

return result;

}