Android網路通訊的實現方式

Android網路程式設計分為兩種：基於http協議的，和基於socket的。
基於Http協議：HttpClient、HttpURLConnection、AsyncHttpClient框架等
基於Socket：
（1）針對TCP/IP的Socket、ServerSocket
（2）針對UDP/IP的DatagramSocket、DatagramPackage
（3）Apache Mina框架
一、HttpURLConnection的實現方式

String response = null; 
Url url = new URL(path); 
HttpURLConnection connection = (HttpURLConnection) url.openConnection(); // 新建連線例項 
connection.setConnectTimeout(20000);// 設定連線超時時間，單位毫秒 
//connection.setReadTimeout(20000);// 設定讀取資料超時時間，單位毫秒 
connection.setDoInput(true);// 是否開啟輸入流 true|false 
connection.setRequestMethod("POST");// 提交方法POST|GET 
//connection.setUseCaches(false);// 是否快取true|false 
//connection.setRequestProperty("accept", "*/*"); 
//connection.setRequestProperty("Connection", "Keep-Alive"); 
//connection.setRequestProperty("Charset", "UTF-8"); 
//connection.setRequestProperty("Content-Length", String.valueOf(data.length)); 
//connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); 
connection.connect();// 開啟連線埠 
int responseCode = conn.getResponseCode(); 
BufferedReader reader = null; 
if (responseCode == 200) { 
reader = new BufferedReader(new InputStreamReader(connection.getInputStream(), "utf-8")); 
StringBuffer buffer = new StringBuffer(); 
String line = ""; 
while ((line = reader.readLine()) != null) { 
buffer.append(line); 
} 
response = buffer.toString(); 
} else { 
response = "返回碼：" responseCode; 
} 
reader.close(); 
conn.disconnect(); 

二、HttpClient實現方式

HttpResponse mHttpResponse = null; 
HttpEntity mHttpEntity = null; 
//建立HttpPost物件 
//HttpPost httppost = new HttpPost(path); 
//設定httpPost請求引數 
//httppost.setEntity(new UrlEncodedFormEntity(params,HTTP.UTF_8)); 
HttpGet httpGet = new HttpGet(path);   
HttpClient httpClient = new DefaultHttpClient(); 
InputStream inputStream = null; 
BufferedReader bufReader = null; 
String result = ""; 
// 傳送請求並獲得響應物件 
mHttpResponse = httpClient.execute(httpGet);//如果是“POST”方式就傳httppost  
if (mHttpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { 
// 獲得響應的訊息實體 
mHttpEntity = mHttpResponse.getEntity(); 
// 獲取一個輸入流 
inputStream = mHttpEntity.getContent(); 
bufReader = new BufferedReader(new InputStreamReader(inputStream));  
String line = ""; 
while (null != (line = bufReader.readLine())) { 
result  = line; 
} 
//result = EntityUtils.toString(mHttpResponse.getEntity()); 
}  
if (inputStream != null) { 
inputStream.close(); 
} 
bufReader.close(); 
if (httpClient != null) { 
httpClient.getConnectionManager().shutdown(); 
} 

三、實用AsyncHttpClient框架的實現方式

AsyncHttpClient client = new AsyncHttpClient();  
client.get(url, new AsyncHttpResponseHandler() {  
@Override  
public void onSuccess(int i, Header[] headers, byte[] bytes) {        
String response = new String(bytes, 0, bytes.length, "UTF-8");            
}  
@Override  
public void onFailure(int i, Header[] headers, byte[] bytes, Throwable throwable) {  
}  
});  

四、使用WebView檢視元件顯示網頁

myWebView.getSettings().setJavaScriptEnabled(true);  
myWebView.setWebViewClient(new WebViewClient() {  
@Override  
public boolean shouldOverrideUrlLoading(WebView view, String url) {  
view.loadUrl(url);  
return true;  
}  
});  
myWebView.loadUrl("http://" networkAddress);  

以上就是Android中網路通訊幾種方式的全部內容，希望對大家的學習有所幫助。

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