如何在android中连接php和wamp

Question

我想在数据库中有一些数据，我的应用程序从那里检索数据。我是初学者，我不知道如何创建我的数据库，尽管我已经编写了 php 脚本和 java 代码来获得这些结果。所以我需要你的帮助来创建那个数据库。我正在使用 WAMP，并且创建了一个数据库。我的问题是这些调用的论点是什么：

mysql_connect("127.0.0.1","root","xxpasswordxx");

还有这个：

public static final String KEY_121 = "http://xx.xx.xxx.xxx/hellomysql/mysqlcon.php"; 

我在某处读到，我必须将 10.0.0.2 和我的目录放在存储我的 php 文件的 C:\wamp\www 下。

编辑：添加代码

这是我的安卓代码：

@SuppressWarnings("null")
private void DoMain() {

    setContentView(R.layout.main);

        // Set the text and call the connect function.  
      //call the method to run the data retreival
        getServerData(KEY_121);
}
    public static final String KEY_121 ="http://10.0.2.2:8888/example.php"; //what in here??

    private String getServerData(String returnString) {

       InputStream is = null;

       String result = "";
        //the year data to send
        ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
        nameValuePairs.add(new BasicNameValuePair("year","1970"));

        //http post
        try{
                HttpClient httpclient = new DefaultHttpClient();
                HttpPost httppost = new HttpPost(KEY_121);
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                HttpResponse response = httpclient.execute(httppost);
                HttpEntity entity = response.getEntity();
                is = entity.getContent();

        }catch(Exception e){
                Log.e("log_tag", "Error in http connection "+e.toString());
        }

        //convert response to string
        try{
                BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
                StringBuilder sb = new StringBuilder();
                String line = null;
                while ((line = reader.readLine()) != null) {
                        sb.append(line + "\n");
                }
                is.close();
                result=sb.toString();
        }catch(Exception e){
                Log.e("log_tag", "Error converting result "+e.toString());
        }
        //parse json data
        try{
                JSONArray jArray = new JSONArray(result);
                for(int i=0;i<jArray.length();i++){
                        JSONObject json_data = jArray.getJSONObject(i);
                        Log.i("log_tag","id: "+json_data.getInt("id")+
                                ", name: "+json_data.getString("name")+
                                ", sex: "+json_data.getInt("sex")+
                                ", birthyear: "+json_data.getInt("birthyear")
                        );
                        //Get an output to the screen
                        returnString += "\n\t" + jArray.getJSONObject(i); 
                }
        }catch(JSONException e){
                Log.e("log_tag", "Error parsing data "+e.toString());
        }
        return returnString; 
    }    

这是我的 php 文件

<?php

  mysql_connect("127.0.0.1","root","xxpasswordxx"); //what in here??

  mysql_select_db("peopledata");

  $q=mysql_query("SELECT * FROM people WHERE birthyear>'".$_REQUEST['year']."'");

  while($e=mysql_fetch_assoc($q))

          $output[]=$e;

       print(json_encode($output));

mysql_close();

?>

Answer 1

您需要创建 PHP Web 服务才能从 android 代码访问。在Android端你需要寻找HttpUrlConnection API。