小项目需要读取数据库，刚好手头有服务器，处于某些考虑，还是想远程读数据，所遇异常

Logcat异常：

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，通过一个按钮监听事件，利用HttpClient来实现交互。<关于更多HttpClient点击此处：>

上核心代码：

 

PHP代码：

<?php

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

　　json_encode($array);

?>

 

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() {            @Override            public void onClick(View v) {            // TODO Auto-generated method stub            EditText 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");            }        }

 

解决办法：

url没拼对，用的是本地的虚拟服务器，android的本地ip对应的是10.0.2.2，所以url应该如下拼写：<貌似只能用IIS的默认网站进行交互，如果谁知道怎么用hosts拦截DNS解析用域名访问的方法欢迎留言>

String url = "";

这样，就没有问题了！

PS:IIS加载PHP模块需要两步：

1、加载php5isapi.dll

2、iis->对应网站->主目录->配置->映射加载对应的php5isapi.dll

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