HTTP encapsulation For Android

[Java] view plaincopyprint?
Package com. example. mynetutil;
 
Import java. io. DataOutputStream;
Import java. io. IOException;
Import java. io. InputStream;
Import java.net. HttpURLConnection;
Import java.net. SocketTimeoutException;
Import java.net. URL;
Import java. util. ArrayList;
Import java. util. HashMap;
Import java. util. Map;
 
Import org. apache. http. Header;
Import org. apache. http. HttpEntity;
Import org. apache. http. HttpResponse;
Import org. apache. http. HttpStatus;
Import org. apache. http. client. entity. UrlEncodedFormEntity;
Import org. apache. http. client. methods. HttpPost;
Import org. apache. http. impl. client. DefaultHttpClient;
Import org. apache. http. message. BasicHeader;
Import org. apache. http. message. BasicNameValuePair;
Import org. apache. http. params. CoreConnectionPNames;
Import org. apache. http. util. EntityUtils;
 
Import android. content. Context;
Import android.net. ConnectivityManager;
Import android.net. NetworkInfo;
Import android. util. Log;
Import android. widget. Toast;
 
/**
* HttpUtil Class Capsule Most Functions of Http Operations
*
* @ Author sfshine
*
*/
Public class HttpUtil {
 
Private static Header [] headers = new BasicHeader [11];
Private static String TAG = "HTTPUTIL ";
Private static int TIMEOUT = 10*1000;
 
/**
* Your header of http op
*/
Static {
Headers [0] = new BasicHeader ("Appkey ","");
Headers [1] = new BasicHeader ("Udid ","");
Headers [2] = new BasicHeader ("OS ","");
Headers [3] = new BasicHeader ("Osversion ","");
Headers [4] = new BasicHeader ("Appversion ","");
Headers [5] = new BasicHeader ("Sourceid ","");
Headers [6] = new BasicHeader ("Ver ","");
Headers [7] = new BasicHeader ("Userid ","");
Headers [8] = new BasicHeader ("Usersession ","");
Headers [9] = new BasicHeader ("Unique ","");
Headers [10] = new BasicHeader ("Cookie ","");
 
}
 
/**
* Op Http get request
*
* @ Param url
* @ Param map
* Values to request
* @ Return
*/
 
Static public String get (String url, HashMap <String, String> map ){
 
Int I = 0;
For (Map. Entry <String, String> entry: map. entrySet ()){
 
Log. I (TAG, entry. getKey () + "=>" + entry. getValue ());
If (I = 0 ){
Url = url + "? "+ Entry. getKey () +" = "+ entry. getValue ();
} Else {
Url = url + "&" + entry. getKey () + "=" + entry. getValue ();
}
 
I ++;
 
}
String reult = post (url, null );
Return reult;
 
}
 
/**
* Op Http post request, "404 error" response if failed
*
* @ Param url
* @ Param map
* Values to request
* @ Return
*/
 
Static public String post (String url, HashMap <String, String> map ){
 
DefaultHttpClient client = new DefaultHttpClient ();
Client. getParams (). setParameter (CoreConnectionPNames. CONNECTION_TIMEOUT, TIMEOUT );
Client. getParams (). setParameter (CoreConnectionPNames. SO_TIMEOUT, TIMEOUT );
HttpPost post = new HttpPost (url );
Log. I (TAG, url );
Post. setHeaders (headers );
String result = "404 error ";
ArrayList <BasicNameValuePair> pairList = new ArrayList <BasicNameValuePair> ();
If (map! = Null ){
For (Map. Entry <String, String> entry: map. entrySet ()){
Log. I (TAG, entry. getKey () + "=>" + entry. getValue ());
BasicNameValuePair pair = new BasicNameValuePair (
Entry. getKey (), entry. getValue ());
PairList. add (pair );
}
 
}
 
Try {
HttpEntity entity = new UrlEncodedFormEntity (pairList, "UTF-8 ");
Post. setEntity (entity );
HttpResponse response = client.exe cute (post );
If (response. getStatusLine (). getStatusCode () = HttpStatus. SC _ OK ){
SetCookie (response );
Result = EntityUtils. toString (response. getEntity (), "UTF-8 ");
Log. I (TAG, "result =>" + result );
Return result;
}
}
Catch (Exception e ){

}

Log. e (TAG, result );
Return result;
}
 
/**
* Post Bytes to Server
* @ Param url
* @ Param bytes of text
* @ Return
*/
Public static String PostBytes (String url, byte [] bytes ){
Try {
URL murl = new URL (url );
Final HttpURLConnection con = (HttpURLConnection) murl
. OpenConnection ();
 
Con. setDoInput (true );
Con. setDoOutput (true );
Con. setUseCaches (false );
 
Con. setRequestMethod ("POST ");
Con. setRequestProperty ("Connection", "Keep-Alive ");
Con. setRequestProperty ("Charset", "UTF-8 ");
Con. setRequestProperty ("Content-Type", "text/html ");
String cookie = headers [10]. getValue ();
If (! IsNull (headers [10]. getValue ())){
Con. setRequestProperty ("cookie", cookie );
}

Con. setReadTimeout (TIMEOUT );
Con. setConnectTimeout (TIMEOUT );
Log. I (TAG, url );
DataOutputStream dsDataOutputStream = new DataOutputStream (
Con. getOutputStream ());
DsDataOutputStream. write (bytes, 0, bytes. length );
 
DsDataOutputStream. close ();
If (con. getResponseCode () = HttpStatus. SC _ OK ){
InputStream isInputStream = con. getInputStream ();
Int ch;
StringBuffer buffer = new StringBuffer ();
While (ch = isInputStream. read ())! =-1 ){
Buffer. append (char) ch );
}
 
Log. I (TAG, "GetDataFromServer>" + buffer. toString ());
 
Return buffer. toString ();
} Else {
Returns "404 error ";
}
} Catch (SocketTimeoutException e ){
Return "timeouterror ";
} Catch (IOException e ){
// TODO Auto-generated catch block
Returns "404 error ";
}
}
 
/**
* Set Cookie
*
* @ Param response
*/
Private static void setCookie (HttpResponse response ){
If (response. getHeaders ("Set-Cookie"). length> 0 ){
Log. d (TAG, response. getHeaders ("Set-Cookie") [0]. getValue ());
Headers [10] = new BasicHeader ("Cookie ",
Response. getHeaders ("Set-Cookie") [0]. getValue ());
}
}
 
/**
* Check net work
*
* @ Param context
* @ Return
*/
Public static boolean hasNetwork (Context context ){
ConnectivityManager con = (ConnectivityManager) context
. GetSystemService (Context. CONNECTIVITY_SERVICE );
NetworkInfo workinfo = con. getActiveNetworkInfo ();
If (workinfo = null |! Workinfo. isAvailable ()){
Toast. makeText (context, "No network connection currently, please try again later", Toast. LENGTH_SHORT). show ();
Return false;
}
Return true;
}
/***
* @ Category check if the string is null
* @ Return true if is null
**/
Public static boolean isNull (String string ){
Boolean t1 = "". equals (string );
Boolean t2 = string = null;
Boolean t3 = string. equals ("null ");
If (t1 | t2 | t3 ){
Return true;
} Else {
Return false;
}
}
}

Test
[Java]
Package com. example. mynetutil;
 
Import java. util. HashMap;
 
Import android. OS. Bundle;
Import android. app. Activity;
Import android. view. Menu;
Import android. view. MenuItem;
Import android. support. v4.app. NavUtils;
 
Public class MainActivity extends Activity {
 
@ Override
Public void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
SetContentView (R. layout. activity_main );
String url = "http: // 192.168.1.77/zwork/test. php ";
HashMap <String, String> map = new HashMap <String, String> ();
Map. put ("goods_id", "100078 ");
Map. put ("cat_id", "100088 ");
HttpUtil. get (url, map );
 
}
 
@ Override
Public boolean onCreateOptionsMenu (Menu menu ){
GetMenuInflater (). inflate (R. menu. activity_main, menu );
Return true;
}
 
}