小項目需要讀取數據庫，剛好手頭有服務器，處于某些考慮，還是想遠程讀數據，所遇異常

Logcat異常：

SingleClientConnManager(411): Invalid use of SingleClientConnManager: connection still allocated.

Make sure to release the connection before allocating another one.

request time failed: java.net.SocketException: Address family not supported by protocol

基本思路就是，通過一個按鈕監聽事件，利用HttpClient來實現交互。<關于更多HttpClient點擊此處：穿梭查看>

上核心代碼：

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PHP代碼：

<?php

　　$array=array('title'=>'name','value'=>'doooger');

　　json_encode($array);

?>

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protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);//TextView homeContext=new TextView(this);
        setContentView(R.layout.tel);Button btn = (Button)findViewById(R.id.getPhpJson);btn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubEditText edit = (EditText)findViewById(R.id.typeId);Log.i(Tag, "eeeeeeee");String url = "http://www.test.com:80/an/index.php?type=1";getServerJsonDataWithNoType(url,edit);}});}-----------------------------------------------------------------------------------------------------------------public void getServerJsonDataWithNoType(String url,EditText editText){int res = 0;HttpClient client = new DefaultHttpClient();StringBuilder str = new StringBuilder();HttpGet httpGet = new HttpGet(url);try{HttpResponse httpRes = client.execute(httpGet);httpRes = client.execute(httpGet);res = httpRes.getStatusLine().getStatusCode();if(res == 200){BufferedReader buffer = new BufferedReader(new InputStreamReader(httpRes.getEntity().getContent()));for(String s = buffer.readLine(); s != null ; s = buffer.readLine()){str.append(s);}//String out = EntityUtils.toString(httpRes.getEntity().getContent(), "UTF-8");//StringBuilder sb = new StringBuilder()
            Log.i(Tag,str.toString());try{//JSONObject json = new JSONObject(str.toString()).getJSONObject("content");JSONObject json = new JSONObject(str.toString());String title = json.getString("title");Log.i(Tag,title);int id = json.getInt("id");String value = json.getString("value");Log.i(Tag,value);editText.setText("Title:" + title + " ID:" + id + " Value:" + value);}catch(JSONException e){Log.i(Tag, e.getLocalizedMessage());//buffer.close();
            e.printStackTrace();}}else{Log.i(Tag, "HttpGet Error");}}catch(Exception e){Log.i(Tag, "Exception");}}

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解決辦法：

url沒拼對，用的是本地的虛擬服務器，android的本地ip對應的是10.0.2.2，所以url應該如下拼寫：<貌似只能用IIS的默認網站進行交互，如果誰知道怎么用hosts攔截DNS解析用域名訪問的方法歡迎留言>

String url = "http://10.0.2.2/tell/index.php?type=1";

這樣，就沒有問題了！

PS:IIS加載PHP模塊需要兩步：

1、加載php5isapi.dll

2、iis->對應網站->主目錄->配置->映射加載對應的php5isapi.dll

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轉載于:https://www.cnblogs.com/lonelyDog/archive/2012/06/05/2537479.html

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