java - 怎么使用httpclient发送大文件（1G以上）
怎么使用httpclient中的put方法上传大文件?
如果是一次性读到内存中发送的话，内存很容易撑爆，所以肯定是用边读边发的方式，或者使用分片上传。现在想知道怎么使用httpclient实现边读边传，使用jdk自带的方法已经知道怎么实现了。
public static void putRequest(String uri, Map<String, String> headers, File file)
{
URLConnection urlconnection = null;
BufferedOutputStream bos = null;
BufferedInputStream bis = null;
try
{
URL url = new URL(uri);
urlconnection = url.openConnection();
urlconnection.setDoOutput(true);
urlconnection.setDoInput(true);
if (urlconnection instanceof HttpURLConnection)
{
try
{
((HttpURLConnection) urlconnection).setRequestMethod("PUT");
for(Map.Entry<String, String> entry : headers.entrySet())
{
((HttpURLConnection) urlconnection).setRequestProperty(entry.getKey(), entry.getValue());
}
((HttpURLConnection) urlconnection).connect();
}
catch (ProtocolException e)
{
e.printStackTrace();
}
}
bos = new BufferedOutputStream(urlconnection.getOutputStream());
bis = new BufferedInputStream(new FileInputStream(file));
byte[] buff = new byte[1024 * 8];
int i;
while ((i = bis.read(buff)) != -1)
{
bos.write(buff, 0, i);
}
System.out.println(((HttpURLConnection) urlconnection).getResponseMessage());
}
catch (Exception e)
{
e.printStackTrace();
}
finally
{
IOUtils.closeQuietly(bis);
IOUtils.closeQuietly(bos);
((HttpURLConnection) urlconnection).disconnect();
}
}
