httpconnection

问题 I am trying to connect to the Servlet (Tomcat localhost). Here is my code. ServletTest.java (the client) public class ServletTest extends Activity { private static final String TAG = "Test"; /** Called when the activity is first created. */ protected static EditText username; protected static EditText password; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.main); username = (EditText)findViewById(R.id.username); Button goButton = (Button

问题 I am trying to upload a wav file to server using j2me httpconnection. However I am not able to do it. It throws null pointer exception when it's writing the bytes to the server. Sample is below. Exception is thrown at os.write(postBytes); line. Anyone with any idea? And the file I am uploading is test.pcm . public String send() throws Exception { form.append("Inside Send()"); bos = new ByteArrayOutputStream(); try { form.append("Making connections"); hc = (HttpConnection) Connector.open(url,

问题 i have a thread that is connecting to a url to obtaining some data. Sometimes the method httpConnection.connect(); taked too munch time to get the response, and i want to limit the loading dialog of this connection thread to 5 seg. I tryed adding timeouts into the code, but it doesn't work !! URL formattedUrl = new URL(url); URLConnection connection = formattedUrl.openConnection(); connection.setConnectTimeout(5000); connection.setReadTimeout(5000); HttpURLConnection httpConnection =

问题 I have a python program which utilizes python requests. I want to be able to run this program many times sequentially. The code can execute on its own, and run without any errors. However, when I try to run it 100 times, it will raise this error eventually: ConnectionError: HTTPConnectionPool(host='192.168.100.1', port=80): Max retries exceeded with url: 'command' (Caused by <class 'httplib.BadStatusLine'>: '') There are many different commands that are called, and is not always the same

问题 I get the following complete error message: Input dispatching timed out (Waiting to send non-key event because the touched window has not finished processing certain input events that were delivered to it over 500.0ms ago. Wait queue length: 2. Wait queue head age: 9379.7ms.) See below the code + traces. It seems that the lock happens at GetIP_WAN.java:32 which is the line: BufferedReader br = new BufferedReader( new InputStreamReader(conn.getInputStream())); I call this function whenever I

问题 Are Sockets are just a connection between 2 machines ? and if sockets can be established why do we even use HTTPConnection ? 回答1: I assume this is a very general question about the relationship between sockets and HTTP connections. I also assume that "HTTPConnection" does not refer to something involving a specific API/runtime/environment even though the way it's a camel cased term with spaces removed could suggest otherwise. Now that that's out of the way, I present to you, the OSI model:

问题 My application has to detect that the device connected to the Wi-Fi network is the required one and then fire a HTTP request over that Wi-Fi network programmatically. I have searched, but I didn't find any method or class which will help me to do this. I thought of disabling the cellular network so that the HTTP request will go through the Wi-Fi network but even in this I didn't have success. And also, can I enable and disable the cellular and Wi-Fi networks programatically? 回答1: There is no

问题 Using Java, how can I test that a URL is contactable, and returns a valid response? http://stackoverflow.com/about 回答1: The solution as a unit test: public void testURL() throws Exception { String strUrl = "http://stackoverflow.com/about"; try { URL url = new URL(strUrl); HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(); urlConn.connect(); assertEquals(HttpURLConnection.HTTP_OK, urlConn.getResponseCode()); } catch (IOException e) { System.err.println("Error creating HTTP

问题 I am trying to Upload image Capture by Camera into server. server send response code = 200 but Image is not upload into server. Code is : private boolean uploadData() { int count = this.forumThreadsB.size(); for (int i = 0; i < count; i++) { if (isPhoto) message = "Uploading Shared Items " + (i + 1) + " of " + count; else message = "Uploading Shared Items " + (i + 1) + " of " + count; progressCount = (i * 1000)/count; Hashtable<?, ?> threadD = (Hashtable<?, ?>)this.forumThreadsB.elementAt(i);

问题 Apache HTTPClient contains SchemeRegistry class (org.apache.http.conn.scheme.SchemeRegistry) What is Scheme Registry? When can it be used? What impact does it make if i use scheme registry like below SchemeRegistry registry = new SchemeRegistry(); registry.register(new Scheme(WEBSERVICE_URI_SCHEME, 80 ,PlainSocketFactory.getSocketFactory())); PoolingClientConnectionManager wsConnManager = new PoolingClientConnectionManager (registry); 回答1: What is Scheme Registry? Protocol scheme registry