安卓VMD MySQL插入和显示对话框

Question

我正在尝试从Android应用程序中做一个简单的插入。我可以通过连接php从浏览器运行?entry="Sample value from browser"脚本，但是当我在Android上运行应用程序时，就没有插入了。

下面是我调用使用JSON并实现AsyncTask的insert类的地方：

package us.jtaylorok.android.sqlite.first;

import java.util.ArrayList;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.util.Log;
import android.widget.Toast;

public class RemoteInsert extends AsyncTask<Void, String,String >{

    protected String TAG;
    protected Context context;
    protected String input;
    protected ProgressDialog progressDialog;

    public RemoteInsert(String i,Context c){
        this.input = i;
        this.context = c;
    }


    protected void onPreExecute() {
        //ProgressDialog progressDialog; // = new ProgressDialog(context);

        //progressDialog=ProgressDialog.show(,"Please Wait..","Sending data to database", false);
        progressDialog=ProgressDialog.show(context,"Please Wait..","Sending data to database", false);
    }

    @Override
    protected String doInBackground(Void... params) {
        try {
            HttpClient httpclient = new DefaultHttpClient();
            //HttpPost httppost = new HttpPost("http://localhost/index.php");
            //HttpPost httppost = new HttpPost("http://10.253.8.88/patient_data/patient_data.php");
            HttpPost httppost = new HttpPost("http://10.100.205.72/patient_data/patient_data.php");

            ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>();
            postParameters.add(new BasicNameValuePair("entry", "Input from Android"));

            httppost.setEntity(new UrlEncodedFormEntity(postParameters));                   
            HttpResponse response = httpclient.execute(httppost);
            Log.i("postData", response.getStatusLine().toString());
        } catch(Exception e) {
            Log.e(TAG, "Error:  "+e.toString());
        }  

        return "";
    }

    protected void onPostExecute(String result) {
        progressDialog.dismiss(); 
        Toast.makeText(context, "Finished", Toast.LENGTH_LONG).show(); 
    }
}

下面是我的PHP脚本：

<?php
    // mysql_connect("host","username","password");
    mysql_connect("localhost","user1","mypassword");
    mysql_select_db("test");

    $entry_value = $_REQUEST["entry"];
    $query = "INSERT INTO patientdata (entry) values (".$entry_value.");";
    if( !mysql_query($query) ) { 
        /*insert failed*/ 
    }

    mysql_close();
?>

同样，如果我从浏览器中调用它，它会很好地工作，但是在实现AsyncTask之前它会抛出一个异常。

我确实让AVD显示添加和删除，但是当我这样做时，在我的apache2 access_log或error_log中没有请求。有什么建议吗？

Answer 1

我认为您已经在本地服务器上存储了php脚本。因此，在初始化时使用这个HttpPost 10.0.2.2，而不是您机器的ip地址。它的本地主机相当于android虚拟设备。

Answer 2

这不是这个特定问题的问题。问题是在php.ini中有一个神奇的引号设置