Question

我有一些问题用php存储arraylist值到mysql数据库。这是我创建的一些代码。

首先，我有一些类来存储变量，它名为Constant.java：

public class Constant {

    public static final String FIRST_COLUMN = "First";
    public static final String SECOND_COLUMN = "Second";
    public static final String THIRD_COLUMN = "Third";
    public static final String FOURTH_COLUMN = "Fourth";

}

其次，我已将该类导入MainActivity.java，如下所示：

import static com.testing.informationsystem.Constant.FIRST_COLUMN;
import static com.testing.informationsystem.Constant.SECOND_COLUMN;
import static com.testing.informationsystem.Constant.THIRD_COLUMN;
import static com.testing.informationsystem.Constant.FOURTH_COLUMN;

第三，我通过这种方式将我的价值存储在arraylist中：

        btnInsert = (Button) findViewById(R.id.btnInsert);
        btnInsert.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                orderValue = txtOrderValue.getText().toString();
                price = txtPrice.getText().toString();

                valueSpinner = spnProductFocus.getSelectedItem().toString();

                HashMap temp = new HashMap();

                if(orderValue.equalsIgnoreCase("")){
                    orderValue = "0";
                }

                if(price.equalsIgnoreCase("")){
                    price = "1000";
                }

                double count = Double.parseDouble(orderValue) + Double.parseDouble(price);
                total = String.valueOf(count);

                if(count.equalsIgnoreCase("")){
                    count = "0";
                }

                temp.put(FIRST_COLUMN, valueSpinner);
                temp.put(SECOND_COLUMN, orderValue);
                temp.put(THIRD_COLUMN, price);
                temp.put(FOURTH_COLUMN, total);

                list.add(temp);
           }
        });

好的，现在我有arraylist包含我从按钮保存的值。现在我将它通过HTTPOST发送到PHP并将其存储到mysql。这是我将它发布到PHP的代码。

void saveOrder(){

        httpclient = new DefaultHttpClient();
        httppost = new HttpPost("http://dcmodular.com/saktisetia/mobile/order.php");
        nameValuePairs = new ArrayList<NameValuePair>(2);

       --nameValuePairs.add(new BasicNameValuePair(arraylist));--
        ----this is my problem about how to post it to PHP---

                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                response=httpclient.execute(httppost);
                Log.d("Value : ", response.toString());
                HttpEntity entity=response.getEntity();
                String feedback = EntityUtils.toString(entity).trim();
                Log.d("Feedback : ", feedback);

    }

最后，这是我自己的php文件，用于将其存储到mysql数据库中：

<?php

include('connection.php');

--receive arraylist from httppost--

$query = "insert into order(value1) values(value1)";

$execute = mysql_query($query) or die(mysql_error());

if($execute){
    echo "saved";
}else{
    echo "failed";
}

?>

这是我的代码和我的问题如何将该arraylist发布到PHP。谢谢你的帮助。

Answer 1

使用HttpUrlConnection作为Http不再支持默认客户端。试试这个

 public JSONObject function(String value_to_post, String  value_to_post,....){
        try {


            HashMap<String, String> params = new HashMap<>();

            params.put("your_database_field", value_to_post);



            Log.d("request", "starting");

            JSONObject json = jsonParser.makeHttpRequest(
                    your_URL, "POST", params);

            if (json != null) {
                Log.d("JSON result", json.toString());

                return json;
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

        return null;
    }

从您的活动中调用此功能

Answer 2

$_POST变量将保留您发布的数据。

Answer 3

在Android中：

postParameters.add(new Pair<>("value1", value1.toString()));

在Php中

$str = str_replace(array('[',']'),'',$_POST['value1']);
$str = preg_replace('/\s+/', '', $str);
$value1 = preg_split("/[,]+/", $str);
$i=0;
while($i<count($value1){
$query = "insert into order(value1) values(value1)";
}

Answer 4

//你必须有类似的东西。 //这只是一个想法，因为我不知道你如何宣称临时和arraylist

for (int i = 0; i < type.length; i++) {

             nameValuePairs.add(new BasicNameValuePair(list.get(i).getkey,list.get(i).getValue));

        }

Answer 5

您可以使用List<NameValuePair>向服务器发送POST请求。

 try {
        // Add your data
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
        nameValuePairs.add(new BasicNameValuePair("param1", "data1"));
        nameValuePairs.add(new BasicNameValuePair("param2", "data2"));
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

        HttpResponse response = httpclient.execute(httppost);

    } catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
    } catch (IOException e) {
        // TODO Auto-generated catch block
    }

如何将ArrayList值存储到MySQL数据库？

5 个答案: