接收POST时出现错误404


Error 404 when receive POST

我需要用php从android向web服务器发送一个json POST。我尝试了很多代码,但都不起作用。

现在,我尝试使用Postman进行简单的POST,无论是否发送数据。并且总是收到404错误。如果我用GET发送数据,页面工作正常。

查看php,如果你想测试:

网址:http://gclimb.com/Androidphp/index.php

<?php
$json  = file_get_contents('php://input');
$obj = json_decode($json);
echo $obj["username"];
echo $obj["pass"];
if ($_POST["username"]) {
echo $_POST["username"];
}
if ($_GET["username"]) {
echo $_GET["username"];
}
 ?>

编辑

POSTMAN屏幕

404错误:

POST/androidphp/index.php HTTP/1.1主机:gclimb.com缓存控制:无缓存Postman令牌:de575030-0343-64d9-fce3-e640ce12780c内容类型:多部分/表单数据;boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW----获取404错误

工作精细:

获取/androidphp/index.php HTTP/1.1主持人:gclimb.com缓存控制:无缓存邮差代币:f2999796-9338-6ef6-9877-075be9a8e530

这里我将提供一个完整的PHP和一个android应用程序,用于将数据从android应用程序发送到服务器。

假设您的数据库中有以下表:

------------------------
| movie_id | movie_name|
------------------------

1-PHP脚本

<?php 
 $servername="localhost";
$username="root";
$password="";
$db="derar";
$connection=mysqli_connect($servername,$username,$password,$db);
$json = file_get_contents('php://input');
$obj = json_decode($json,true);
$movie_name=$obj['movie_name'];
mysqli_query($connection,"insert into  movie (movie_id, movie_name) VALUES (NULL,'$movie_name');");
echo "inserted";
?>

这段代码是简单的代码,您必须放入SQL注入。

2-Android应用程序

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.win7.derar.MainActivity">
   <Button
       android:id="@+id/send_button"
       android:layout_width="match_parent"
       android:text="إضغط لإرسال المعلومات"
       android:layout_height="wrap_content" />
</RelativeLayout>

主要活动

public class MainActivity extends AppCompatActivity {
    private  Button send_button;
    private String Server_URL="http://192.168.1.101/derar/insertDataToServer.php";
    private String movie_name="Titanic";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        send_button=(Button)findViewById(R.id.send_button);// Button Assignment
        send_button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                SendDataToServer sendDataToServer=new SendDataToServer();
                sendDataToServer.execute(Server_URL,movie_name);

            }
        });// Button On Click Listener
    }

    private class SendDataToServer extends AsyncTask<String, Void, Boolean> {
        @Override
        protected Boolean doInBackground(String... urls) {
            OutputStream os = null;
            InputStream is = null;
            HttpURLConnection conn = null;

            try {
                URL url = new URL(urls[0]);
                JSONObject jsonObject = new JSONObject();
                jsonObject.put("movie_name", urls[1]);
                String message = jsonObject.toString();
                Log.d(message, "Test");
                conn = (HttpURLConnection) url.openConnection();
                conn.setReadTimeout(10000);
                conn.setConnectTimeout(15000);
                conn.setRequestMethod("POST");
                conn.setDoInput(true);
                conn.setDoOutput(true);
                conn.setFixedLengthStreamingMode(message.getBytes().length);
                conn.setRequestProperty("Content-Type", "application/json; charset=utf-8");
                conn.setRequestProperty("X-Requested-With", "XMLHttpRequest");
                conn.connect();
                os = new BufferedOutputStream(conn.getOutputStream());
                os.write(message.getBytes());
                os.flush();
                is = conn.getInputStream();

            } catch (MalformedURLException e) {
                Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show();
                ;
                e.printStackTrace();
                return false;
            } catch (IOException e) {
                Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show();
                ;
                e.printStackTrace();
                return false;
            } catch (JSONException e) {
                e.printStackTrace();
            } finally {
                try {
                    assert os != null;
                    os.close();
                    assert is != null;
                    is.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                conn.disconnect();
            }

            return true;
        }

        @Override
        protected void onPostExecute(Boolean result) {
            if (result) {

                  Toast.makeText(getApplicationContext(), "لقد نجح إرسال المعلومات", Toast.LENGTH_LONG).show();
            } else {
                Toast.makeText(getApplicationContext(), "فشل في إرسال المعلومات", Toast.LENGTH_LONG).show();
            }
        }
    }
}

别忘了做:

1-将此权限添加到清单文件:

<uses-permission android:name="android.permission.INTERNET" />

2-更改此Server_URL="http://192.168.1.101/derar/insertDataToServer.php"; 的IP地址

到您自己的IP地址,以便运行localhost服务器。

我希望这对你有用。

在生成POST request时,不要忘记请求路径是区分大小写的!

试着用这个目标来执行你的请求:

http://gclimb.com/androidphp/index.php