我正在开发一个应用程序,它将从C ++服务器(目前在我的本地网络上)读取SSL加密的字符串数据,并以实物形式返回信息。
我已经关注了许多有关bouncycastle提供程序,自定义套接字工厂,http客户端的教程和许多示例,我已经达到了能够从模拟器向我的c ++服务器发送信息的程度,但模拟器无法读取来自套接字的数据。相反,我得到:
java.net.SocketTimeoutException:读取超时
服务器识别握手和连接,并读取模拟器写入的传入语句。
在AsyncTask线程中调用请求
private class getXmlTask extends AsyncTask<String, String, String> {
protected void onPreExecute() {
pd = ProgressDialog.show(NewJobsView.this,"Retrieving Data","Please Wait",true,false);
pd.setCancelable(true);
}
protected void onPostExecute(String XML) {
Log.i("XML:", XML);
parseXml();
pd.dismiss();
}
@Override
protected String doInBackground(String... params) {
return getXml();
}
}
这是我正在使用的请求类(请原谅,如果它有点乱):
public class HttpRequest{
MyHttpClient httpClient;
HttpContext localContext;
private String ret;
HttpResponse response = null;
HttpPost httpPost = null;
HttpGet httpGet = null;
Context context = null;
int retry = 0;
public HttpRequest(Context c){
HttpParams params = new BasicHttpParams();
context = c;
HttpConnectionParams.setConnectionTimeout(params, 60000);
HttpConnectionParams.setSoTimeout(params, 60000);
HttpProtocolParams.setContentCharset(params, HTTP.DEFAULT_CONTENT_CHARSET);
HttpProtocolParams.setUseExpectContinue(params, true);
httpClient = new MyHttpClient(context);
params.setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
httpClient.setParams(params);
localContext = new BasicHttpContext();
}
public void abort() {
try {
if (httpClient != null) {
System.out.println("Abort.");
httpPost.abort();
}
} catch (Exception e) {
System.out.println("MyApp" + e);
}
}
public String sendPost(String url, String data) {
return sendPost(url, data, null);
}
public String sendPost(String url, String data, String contentType) {
ret = null;
httpPost = new HttpPost(url);
httpPost.addHeader("User-Agent", data);
response = null;
StringEntity ent = null;
try {
ent = new StringEntity(data,"UTF-8");
} catch (UnsupportedEncodingException e) {
Log.e("MyApp", "HttpUtils : UnsupportedEncodingException : "+e);
}
httpPost.setEntity(ent);
try {
response = httpClient.execute(httpPost);
if (response != null) {
ret = EntityUtils.toString(response.getEntity());
Log.e("MyApp", "HttpUtils: " + ret);
}
else{
abort();
}
} catch (Exception e) {
Log.e("MyApp", "HttpUtils: " + e);
}
Log.d("MyApp", "Returning value:" + ret);
if(retry < 3){
sendPost(url, data);
retry = retry +1;
}
else{
return ret;
}
return ret;
}
}
其他几点说明:
我有
uses-permission android:name =“android.permission.INTERNET”
在我的清单文件中。
我还验证了SSL服务器的工作原理,因为其他客户端(尽管是C ++)能够维护连接并从套接字读取。
MyHttpClient对象是
的近似副本How to create a BKS (BouncyCastle) format Java Keystore that contains a client certificate chain
我一直在旋转我的车轮,任何答案都会非常感激。
谢谢!
答案 0 :(得分:0)
首先检查您的网址,然后尝试使用一个建议httpsconnection
它比普通的httpGet好,因为有时它会给你sockettime / ssl或任何其他io异常