流式获取html页面

最近遇上比较郁闷的事...
在用流的方式获取html页面的时候,只能够获取到页面的部分源代码,并不完整.
原先是采用用HttpURLConnection + URL 去做的...附上主要代码...

HttpURLConnection jconn = null;

ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

URL url = new URL(strUrl);

jconn = (HttpURLConnection) url.openConnection();

jconn.setDoOutput(true);

jconn.setDoInput(true);

jconn.connect();

InputStream in = jconn.getInputStream();

byte[] buf = new byte[4096];

int bytesRead = 0;

while ((bytesRead = in.read(buf)) != -1) {

      byteArrayOutputStream.write(buf, 0, bytesRead);

}

            String strRead = new String(byteArrayOutputStream.toByteArray(), "GBK");

然后转用HttpClient + GetMethod ...同样附上主要代码...

        HttpClient client = new HttpClient();

        StringBuffer sb = new StringBuffer();

        

        GetMethod getMethod = new GetMethod(strUrl);

        int statusCode;

            statusCode = client.executeMethod(getMethod);

            if (statusCode == HttpStatus.SC_OK) {

                BufferedReader bf = new BufferedReader(new InputStreamReader(getMethod.getResponseBodyAsStream(), coder));

                String inputLine = null;

                while ((inputLine = bf.readLine()) != null) {

                   

                    sb.append(inputLine).append("\n");

                }



                bf.close();

但是两种方法也不行,最奇怪的是有些页面也能全部解析出来,但是有些页面呢就只能够解析一部分,并不完整..
不知道大家有没有过这样的经历...郁闷了好几天了...