android，与PHP通信，返回JSON

lxy777

　　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：穿梭查看>
　　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 = "http://10.0.2.2/tell/index.php?type=1";

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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