两种HTTP连接方式POST&GET的比较(3)

            // Opening the InputStream will open the connection
            // and read the HTTP headers. They are stored until
            // requested.
            is = c.openInputStream();

            // Get the ContentType
            String type = c.getType();
            processType(type);

            // Get the length and process the data
            int len = (int)c.getLength();
            if (len > 0) {
                byte[] data = new byte[len];
                int actual = is.read(data);
                process(data);
            } else {
                int ch;
                while ((ch = is.read()) != -1) {
                    process((byte)ch); 
                }
            }
        } finally {
            if (is != null)
                is.close();
            if (os != null)
                os.close();
            if (c != null)
                c.close();
        }
    }