网络下载图片存到本地，项目问题补充

两种方式  HttpClient 和 HttpURLConnection

第一种封装很多方法 第二种比较原生，注意在存储的时候保证流都关闭了，输出流不关闭可能会引起图片下载不全的问题

public void getFileData( ) 
{
if (!HttpConnection.isConnected(context))
{
return;
} else
{
try
{
Log.i(TAG, "down load pic");
HttpClient client = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url);
// 执行
HttpResponse ressponse = client.execute(httpGet);
int code = ressponse.getStatusLine().getStatusCode();
// 设置保存文件路径 没有指定目录则创建


if (code == HttpStatus.SC_OK)
{
// File dirFile = new File(filePath);
// if (dirFile != null && !dirFile.exists())
// {
// dirFile.mkdir();
// }
File myCaptureFile = new File(filePath + File.separator + fileName);
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myCaptureFile));
InputStream in = ressponse.getEntity().getContent();
// 图片
GZIPInputStream gzipIn = new GZIPInputStream(in);
BufferedInputStream bufferInS=new BufferedInputStream(gzipIn);
int count;
byte data[] = new byte[BUFFER];
// while ((count = bufferInS.read(data, 0, BUFFER)) != -1)
while ((count = bufferInS.read(data)) != -1)
{
bos.write(data, 0, count);
}

bos.flush();
bos.close();
gzipIn.close();
in.close();
bufferInS.close();
}
} catch (Exception e)
{
throw new RuntimeException(e);
}
}


// BufferedInputStream in = null;
// BufferedOutputStream out = null;
// HttpURLConnection hc = null;
// try
// {
// // 打开URLConnection
// URL u = new URL(this.url);
// hc = (HttpURLConnection) u.openConnection();
// hc.setRequestMethod("GET");
// // 表明程序必须把字符串内容输出到服务器程序资源
// hc.setDoOutput(true);
// // 表明不使用缓存
// hc.setUseCaches(false);
// // 设置连接超时时间
// hc.setConnectTimeout(10000);
// // 设置读取数据超时时间
// hc.setReadTimeout(20000);
//
// hc.getOutputStream().close();
// GZIPInputStream gin = new GZIPInputStream(hc.getInputStream());
// in = new BufferedInputStream(gin);
// Log.i("pic path", "@" + fileName);
// out = new BufferedOutputStream(new FileOutputStream(filePath + File.separator + fileName));
// int BUFFER_SIZE = 1024 * 8;
// byte[] buffer = new byte[BUFFER_SIZE];
// int readLength = 0;
// while ((readLength = in.read(buffer)) != -1)
// out.write(buffer, 0, readLength);
// out.flush();
// out.close();
// in.close();
// gin.close();
// } catch (Exception e)
// {
//
// e.printStackTrace();
//
// } finally
// {
// if (hc != null)
// {
// hc.disconnect();
// hc = null;
// }
// if (in != null)
// {
// in = null;
// }
// if (out != null)
// {
// out = null;
// }
// }
}