android模拟器（simulator）把它自己作为了localhost,也就是说，代码中使用localhost或者127.0.0.1来访问，都是访问模拟器自己！这是不行的！
如果你想在模拟器simulator上面访问你的电脑，那么就使用android内置的IP 10.0.2.2 吧， 10.0.2.2 是模拟器设置的特定ip，是你的电脑的别名alias
记住，在模拟器上用10.0.2.2访问你的电脑本机
android http post 实现
public void onClick(View v) {
dopost(txt.getText().toString());
}
});
}private void dopost(String val){
//封装数据
Map<String, String> parmas = new HashMap<String, String>();
parmas.put("name", val);
DefaultHttpClient client = new DefaultHttpClient();//http客户端
HttpPost httpPost = new HttpPost("http://mhycoe.com/test/post.php");
ArrayList<BasicNameValuePair> pairs = new ArrayList<BasicNameValuePair>();
if(parmas != null){
Set<String> keys = parmas.keySet();
for(Iterator<String> i = keys.iterator(); i.hasNext();) {
String key = (String)i.next();
pairs.add(new BasicNameValuePair(key, parmas.get(key)));
}
}
try {
UrlEncodedFormEntity p_entity = new UrlEncodedFormEntity(pairs, "utf-8");
/*
* 将POST数据放入HTTP请求
*/
httpPost.setEntity(p_entity);
/*
* 发出实际的HTTP POST请求
*/
HttpResponse response = client.execute(httpPost);
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
String returnConnection = convertStreamToString(content);
show.setText(returnConnection);
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}private String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
}
BudgetVM优惠码 
Erchoc 
苟保罗 
纯野 
网上购买书架 
jack 
九道食品 
千刀乐
看不懂！汗
一直想买个adnroid手机呢，不知道这玩意是用什么语言开发的