Java 通过android和php在mysql数据库中插入空白记录

我正在开发一个通过PHP将数据插入MySQL数据的应用程序。 一切似乎都很好。但主要问题是我插入的数据 返回MySQL数据库时为空

这是我的密码

1这是我的名为insert.PHP的PHP文件

这意味着我试着去做那件事 这是我使用Android Studio的java代码

import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.os.Bundle;
import android.os.StrictMode;
import android.text.InputType;
import android.text.method.PasswordTransformationMethod;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.Toast;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
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 org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;


public class MainActivity extends Activity {
protected static final String PrgUpdate = null;
Button mysql;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    if (android.os.Build.VERSION.SDK_INT > 9) {
        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
        StrictMode.setThreadPolicy(policy);
    }
    Button mysql = (Button)findViewById(R.id.mysql);
    InputStream is = null;
    mysql.setOnClickListener(new View.OnClickListener() {
        @Override
           public void onClick(View v) {

            String party="Abhisheck";
            String code="All update";
            String emply="Bhavasar";
            String date="01/04/2014";

            List<NameValuePair> nameValuePair= new ArrayList<NameValuePair>(1);
            nameValuePair.add(new BasicNameValuePair("party",party));
            nameValuePair.add(new BasicNameValuePair("code",code));
            nameValuePair.add(new BasicNameValuePair("emply",emply));
            nameValuePair.add(new BasicNameValuePair("date",date));
            System.out.println(nameValuePair.toString());
            try{
                HttpClient httpClient = new DefaultHttpClient();
                HttpPost httpPost = new HttpPost("http://youripaddress.com/insert.php");
                httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair));
                HttpResponse response = httpClient.execute(httpPost);
                HttpEntity entity = response.getEntity();
                InputStream is = entity.getContent();
                Toast.makeText(getApplicationContext(),"Data enter succesful",Toast.LENGTH_SHORT).show();

            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            } catch (ClientProtocolException e) {
                Log.e("ClientProtocolException","Client");
                e.printStackTrace();
            } catch (IOException e) {
                Log.e("Ioexception","Ioexption");
                e.printStackTrace();
            }
      }
    });
}

不要担心日期字段，它是字符字段。 我的数据库mysql在这里

名称类型排序规则属性空默认值 1 id int6无符号无自动增量

2方char50拉丁语1_瑞典语ci是空

3代码varchar50拉丁1_瑞典语_ci是空

4雇员varchar50拉丁语1_瑞典语ci是空

5日期字符50拉丁语1瑞典语ci是空

现在实际的问题是什么。 为什么不在MySQL中插入记录。

insert是将数据异步插入数据库的类。您可以通过调用execute方法来调用该类。您需要重写AsyncTask的doInBackground方法。 您可以在此处的文档中找到更多详细信息：

---

用这个做背景

runOnUiThread(new Runnable() {    

                @Override  
                public void run() {    
                    // TODO Auto-generated method stub

                }
            }); 

---

在打开PHP标记后立即将错误报告添加到文件顶部。例如，您是否检查了，所有值都可以插入？：首先，我的应用程序从不崩溃。@vishalk我通过echo命令检查所有值，但它打印空白，然后它将插入空白记录：注释不用于扩展讨论；这段对话已经结束。

class Insert extends AsyncTask<String, String, String>
{

    @Override
    protected String doInBackground(String... params) {
        // TODO Auto-generated method stub

        String party="Abhisheck";
        String code="All update";
        String emply="Bhavasar";
        String date="01/04/2014";

        List<NameValuePair> nameValuePair= new ArrayList<NameValuePair>(1);
        nameValuePair.add(new BasicNameValuePair("party",party));
        nameValuePair.add(new BasicNameValuePair("code",code));
        nameValuePair.add(new BasicNameValuePair("emply",emply));
        nameValuePair.add(new BasicNameValuePair("date",date));
        System.out.println(nameValuePair.toString());

        try
        {
            HttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost("http://10.0.2.2/insert.php");
            httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair));
            HttpResponse response = httpClient.execute(httpPost);
            HttpEntity entity = response.getEntity();
            InputStream is = entity.getContent();
            //Toast.makeText(getApplicationContext(),"Data enter succesful",Toast.LENGTH_SHORT).show();

        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            Log.e("ClientProtocolException","Client");
            e.printStackTrace();
        } catch (IOException e) {
            Log.e("Ioexception","Ioexption");
            e.printStackTrace();
        }

        return null;
    }

}

public class MainActivity extends Activity {
    protected static final String PrgUpdate = null;
    Button mysql;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (android.os.Build.VERSION.SDK_INT > 9) {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
        }
        Button mysql = (Button)findViewById(R.id.mysql);
        ProgressDialog dialog;
        InputStream is = null;
        mysql.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                new Insert().execute();
            }
        });
    }
}

runOnUiThread(new Runnable() {    

                @Override  
                public void run() {    
                    // TODO Auto-generated method stub

                }
            });