我试图通过GPRS(移动网络)在真实设备上建立URL的HttpConnection,但它不返回数据,但是我的同一代码通过无线运行良好,该代码在模拟器上也运行良好
我的代码是
public static String getHttpUTFResponse(String url) {
HttpConnection connection = null;
byte responseData[] = null;
try {
connection = (HttpConnection) new ConnectionFactory()
.getConnection(url).getConnection();
int len = (int) connection.getLength();
System.out.println(len);
if (len != -1) {
responseData = new byte[len];
DataInputStream dis;
dis = new DataInputStream(connection.openInputStream());
dis.readFully(responseData);
dis.close();
}
} catch (IOException e) {
System.out.println("Connection Error");
} finally {
if (connection != null) {
try {
connection.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
connection = null;
}
}
if (responseData != null) {
try {
return new String(responseData,"UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
} else {
return null;
}
}
注意:设备浏览器运行良好且BB服务已注册
多亏任何一位
最佳答案
我将我的评论移至以下答案:
在Blackberry中,设置wireless / gprs / 3g / simulator
的连接网址非常具有挑战性,请按照以下指示进行操作
对于设备上的WiFi
,请确保已在连接URL后缀";interface=wifi"
对于设备上的GPRS / 3G
,请确保已为连接URL后缀BIS的";deviceside=false;connectionUID="
和BES后缀的";deviceside=false"
可以在以下位置找到更多描述性的解释:
Need Clarification ---- Http Connection/GPRS
How to configure an IT Policy on the BlackBerry Enterprise Server to allow only the Internet Browser on the BlackBerry smartphone
Internet Connectivity (APN?)
Tag: APN
Different ways to make an HTTP or socket connection
编辑:链接5对OP很有用