Question

我最近为我的网页制作了一个表单，但我不断收到来自表单的电子邮件。即使我没有发送表格，我也会收到电子邮件。

如果我提交表格，我会收到2或3封电子邮件。 1表示我的表格信息，2表示没有信息。

php代码：

                                <form action="" method="POST">
                                <em>Last name:</em></br>
                                <select name="title" id="title">
                                <option>Mr.</option>
                                <option>Mrs.</option>
                                <option>Dr.</option>
                                </select>
                                <input type="text" size="25" name="name" id="name" placeholder="Last name" required="required"><p /><br>
                                <em>company name:</em></br>
                                <input type="text" size="25" name="companyname" id="companyname" placeholder="Company Name" required="required"><p /><br>
                                <em>Email:</em></br>
                                <input type="text" size="25" name="mail" id="mail" placeholder="email" required="required"><p /><br>
                                <em>how many extra pages:</em><br>
                                <select name="extrapages" id="extrapages">
                                <option>0</option>
                                <option>1</option>
                                <option>2</option>
                                <option>3</option>
                                <option>4</option>
                                <option>5</option>
                                <option>6</option>
                                <option>7</option>
                                <option>8</option>
                                <option>9</option>
                                </select><br><br>
                                <em>Would you like us to put your site on the internet?</em><br>
                                <input type="radio" name="sow" id="sow" value="Yes" required="required">Yes
                                <input type="radio" name="sow" id="sow" value="No" required="required">No<br><br>
                                <input type="Submit" value="Send!" name="submit">
                            </form>

html代码：

public class MainActivity extends AppCompatActivity
{
EditText userName;
EditText password;
Button sButton;
HttpClient httpClient;
HttpPost httpPost;
HttpResponse httpResponse;
String username;
String pass;
@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    userName = (EditText)findViewById(R.id.user_id);
    password = (EditText) findViewById(R.id.user_password);
    sButton= (Button) findViewById(R.id.s_button);
    username = userName.getText().toString();
    pass = password.getText().toString();
    httpClient = new DefaultHttpClient();

    httpPost = new HttpPost("192.168.100.106/EMS/functions.php");
    final JSONObject jsonObject = new JSONObject();


    sButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view)
        {
                Thread thread = new Thread()
                {
                    @Override
                    public void run()
                    {
                        try

                        {
                            jsonObject.put("username", username);
                            jsonObject.put("password", pass);
                            Log.wtf("Sent data :","username and password");
                            httpPost.setEntity(new StringEntity(jsonObject.toString()));
                        }

                        catch(JSONException | UnsupportedEncodingException e)

                        {
                            e.printStackTrace();
                        }
                        try {
                            httpResponse = httpClient.execute(httpPost);
                            String str = EntityUtils.toString(httpResponse.getEntity());
                            JSONObject responseObject = new JSONObject(str);
                            String response = responseObject.getString("success");
                            if(response.equals("1"))
                            {
                                runOnUiThread(new Runnable() {
                                    @Override
                                    public void run() {
                                        Toast.makeText(getApplicationContext(), "Credentials match successful.",Toast.LENGTH_SHORT).show();
                                        Intent intent = new Intent(getApplicationContext(),index.class);
                                        startActivity(intent);

                                    }
                                });
                            }

                        } catch (IOException | JSONException e) {
                            e.printStackTrace();
                        }

                    }
                };thread.start();



        }
    });
}
}

Answer 1

因为您的表单设置为每次加载页面时都运行。您不检查是否提交表单。您还绝对没有验证。

要修复此包装，请将所有此代码包装在if语句中，以检查表单是否已提交。您可以查看包含$_SERVER超级全局和名为REQUEST_METHOD的密钥，它将告诉您页面是否是通过POST请求的（通常在提交表单时）或GET（在“典型的“页面加载”。如果它的值是“POST”，则表单已提交，您可以处理数据，如果没有，则忽略该代码。

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // your code goes here
}

为什么我不断收到表格中的电子邮件？

1 个答案: