如何在EditText中將PHP變量的值傳遞給Android Studio？
[英]How to pass the value of a PHP variable within an EditText to Android Studio?
問題描述
我想問你是否知道如何將PHP中變量的值傳遞給android studio中的EditText？ 讓我更好地解釋一下，我有一個android應用程序，其中有兩種形式的信息可以輸入並保存在MySQL數據庫中。 數據庫有一個用於第一個表單的表和一個用於第二個表單的表，這兩個表被鏈接，然后第二個表具有一個外部密鑰，該外部密鑰與用第一個表單插入的第一個表的主密鑰相關聯。
我無法做的是，一旦我在第一個表中輸入了數據並通過mysqli Insert_id ()獲得了主鍵，我就不知道如何在第二個表中的edittext中傳遞$ People_id中變量的值。形式
在下面，我留下了我的android代碼，第二種形式的代碼中存在問題，因為輸入的數據未到達PHP腳本。
因此，通過總結問題，有誰知道如何傳遞通過mysql insert id獲得的主鍵在php文件中mysql insert id並將此值放在第二種形式的EditText中？
第一種形式將數據保存到表“ Persone”中，該表中的字段為：
- id（PK）
- 姓名（VARCHAR）
第二種形式將數據保存在表“ Persone2”中，該表中的字段為：
- idP2（PK）
- FK_persone（外鍵）
- Squadra，Ruolo和Numero_maglia（VARCHAR）
PS。 在第二種形式中，數據保存在表“ People2”中，用戶輸入了“ Ruolo”，“ Squadra”和“ Numero_maglia”字段，但字段“ id_People2”必須已經插入（變量值必須為$ _SESSION ['People_id'] = $ People_id;我從第一種形式的PHP腳本獲得的值）。
第一種形式有效，idata保存在數據庫中，但是第二種形式不起作用，android studio .JAVA文件存在問題，但我不明白是什么問題:(
第一種形式的java文件是：
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Build;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.widget.Toast;
import java.net.FileNameMap;
import java.util.HashMap;
public class Activity1 extends AppCompatActivity {
private EditText nome, cognome;
private Button registrazione, login;
//REGISTRAZIONE
String F_Name_Holder, L_Name_Holder;
String finalResult ;
String HttpURLRegister = "http://provaord.altervista.org/NEW/RRR.php";
Boolean CheckEditText ;
ProgressDialog progressDialog;
HashMap<String,String> hashMap = new HashMap<>();
HttpParse httpParse = new HttpParse();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_1);
nome = (EditText)findViewById(R.id.editText6);
cognome = (EditText)findViewById(R.id.editText7);
registrazione = (Button)findViewById(R.id.button5);
login = (Button)findViewById(R.id.button3);
registrazione.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Checking whether EditText is Empty or Not
CheckEditTextIsEmptyOrNot();
if(CheckEditText){
// If EditText is not empty and CheckEditText = True then this block will execute.
UserRegisterFunction(F_Name_Holder,L_Name_Holder);
}
else {
// If EditText is empty then this block will execute .
Toast.makeText(Activity1.this, "Please fill all form fields.", Toast.LENGTH_LONG).show();
}
}
});
}
//REGISTRAZIONE
public void CheckEditTextIsEmptyOrNot(){
F_Name_Holder = nome.getText().toString();
L_Name_Holder = cognome.getText().toString();
if(TextUtils.isEmpty(F_Name_Holder) || TextUtils.isEmpty(L_Name_Holder) )
{
CheckEditText = false;
}
else {
CheckEditText = true ;
}
}
//REGISTRATION
@RequiresApi(api = Build.VERSION_CODES.CUPCAKE)
public void UserRegisterFunction(final String Nome, final String Cognome){
class UserRegisterFunctionClass extends AsyncTask<String,Void,String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog = ProgressDialog.show(Activity1.this,"Loading Data",null,true,true);
}
@Override
protected void onPostExecute(String httpResponseMsg) {
super.onPostExecute(httpResponseMsg);
progressDialog.dismiss();
Toast.makeText(Activity1.this,httpResponseMsg.toString(), Toast.LENGTH_LONG).show();
if(httpResponseMsg.equalsIgnoreCase("Registration Successfully")){
finish();
Intent intent = new Intent(Activity1.this, Activity2.class);
startActivity(intent);
}
}
//REGISTRATION
@Override
protected String doInBackground(String... params) {
hashMap.put("Nome",params[0]);
hashMap.put("Cognome",params[1]);
finalResult = httpParse.postRequest(hashMap, HttpURLRegister);
return finalResult;
}
}
UserRegisterFunctionClass userRegisterFunctionClass = new UserRegisterFunctionClass();
userRegisterFunctionClass.execute(Nome,Cognome);
}
}
第二種形式的java文件是：
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Build;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.widget.Toast;
import java.net.FileNameMap;
import java.util.HashMap;
public class Activity2 extends AppCompatActivity {
private EditText id, squadra, ruolo, numeromaglia;
private Button registrazionee;
//REGISTRAZIONE
String Squadra_Holder, Ruolo_Holder, Numero_Maglia_Holder;
String finalResult ;
String HttpURLRegister = "http://provaord.altervista.org/NEW/R22.php";
Boolean CheckEditText ;
ProgressDialog progressDialog;
HashMap<String,String> hashMap = new HashMap<>();
HttpParse httpParse = new HttpParse();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_2);
// id = (EditText)findViewById(R.id.editText6);
squadra = (EditText)findViewById(R.id.editText7);
ruolo = (EditText)findViewById(R.id.editText3);
numeromaglia = (EditText)findViewById(R.id.editText4);
registrazionee = (Button)findViewById(R.id.button55);
registrazionee.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Checking whether EditText is Empty or Not
CheckEditTextIsEmptyOrNot();
if(CheckEditText){
// If EditText is not empty and CheckEditText = True then this block will execute.
UserRegisterFunction(Squadra_Holder, Ruolo_Holder, Numero_Maglia_Holder);
}
else {
// If EditText is empty then this block will execute .
Toast.makeText(Activity2.this, "Please fill all form fields.", Toast.LENGTH_LONG).show();
}
}
});
}
//REGISTRAZIONE
public void CheckEditTextIsEmptyOrNot(){
Squadra_Holder = squadra.getText().toString();
Ruolo_Holder = ruolo.getText().toString();
Numero_Maglia_Holder = numeromaglia.getText().toString();
if(TextUtils.isEmpty(Squadra_Holder) || TextUtils.isEmpty(Ruolo_Holder) || TextUtils.isEmpty(Numero_Maglia_Holder) )
{
CheckEditText = false;
}
else {
CheckEditText = true ;
}
}
//REGISTRATION
@RequiresApi(api = Build.VERSION_CODES.CUPCAKE)
public void UserRegisterFunction(final String Squadra, final String Ruolo, final String Numero_maglia){
class UserRegisterFunctionClass extends AsyncTask<String,Void,String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog = ProgressDialog.show(Activity2.this,"Loading Data",null,true,true);
}
@Override
protected void onPostExecute(String httpResponseMsg) {
super.onPostExecute(httpResponseMsg);
progressDialog.dismiss();
Toast.makeText(Activity2.this,httpResponseMsg.toString(), Toast.LENGTH_LONG).show();
if(httpResponseMsg.equalsIgnoreCase("Registration Successfully")){
finish();
Intent intent = new Intent(Activity2.this, Activity3.class);
startActivity(intent);
}
}
//REGISTRATION
@Override
protected String doInBackground(String... params) {
hashMap.put("Squadra",params[0]);
hashMap.put("Ruolo",params[1]);
hashMap.put("Numero_maglia",params[2]);
finalResult = httpParse.postRequest(hashMap, HttpURLRegister);
return finalResult;
}
}
UserRegisterFunctionClass userRegisterFunctionClass = new UserRegisterFunctionClass();
userRegisterFunctionClass.execute(Squadra, Ruolo, Numero_maglia);
}
}
HttpParse.java文件的Java代碼是這樣的：
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
/**
* Created by Juned on 3/3/2017.
*/
public class HttpParse {
String FinalHttpData = "";
String Result ;
BufferedWriter bufferedWriter ;
OutputStream outputStream ;
BufferedReader bufferedReader ;
StringBuilder stringBuilder = new StringBuilder();
URL url;
public String postRequest(HashMap<String, String> Data, String HttpUrlHolder) {
try {
url = new URL(HttpUrlHolder);
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setReadTimeout(14000);
httpURLConnection.setConnectTimeout(14000);
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setDoInput(true);
httpURLConnection.setDoOutput(true);
outputStream = httpURLConnection.getOutputStream();
bufferedWriter = new BufferedWriter(
new OutputStreamWriter(outputStream, "UTF-8"));
bufferedWriter.write(FinalDataParse(Data));
bufferedWriter.flush();
bufferedWriter.close();
outputStream.close();
if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {
bufferedReader = new BufferedReader(
new InputStreamReader(
httpURLConnection.getInputStream()
)
);
FinalHttpData = bufferedReader.readLine();
}
else {
FinalHttpData = "Something Went Wrong";
}
} catch (Exception e) {
e.printStackTrace();
}
return FinalHttpData;
}
public String FinalDataParse(HashMap<String,String> hashMap2) throws UnsupportedEncodingException {
for(Map.Entry<String,String> map_entry : hashMap2.entrySet()){
stringBuilder.append("&");
stringBuilder.append(URLEncoder.encode(map_entry.getKey(), "UTF-8"));
stringBuilder.append("=");
stringBuilder.append(URLEncoder.encode(map_entry.getValue(), "UTF-8"));
}
Result = stringBuilder.toString();
return Result ;
}
}
第一種形式的PHP文件：
<?php
session_start();
if($_SERVER['REQUEST_METHOD']=='POST'){
include 'C.php';
$con = mysqli_connect($HostName,$HostUser,$HostPass,$DatabaseName);
$Nome = $_POST['Nome'];
$Cognome = $_POST['Cognome'];
$CheckSQL = "SELECT * FROM Persone WHERE Nome = '$Nome'";
$check = mysqli_fetch_array(mysqli_query($con,$CheckSQL));
if(isset($check)){
echo 'Utente già registrato';
}
else{
$Sql_Query = "INSERT INTO Persone (Nome, Cognome) values ('$Nome','$Cognome')";
if(mysqli_query($con,$Sql_Query))
{
echo 'Registration Successfully';
$People_id = mysqli_insert_id($con);
$_SESSION ['People_id'] = $People_id;
}
else
{
echo 'Something went wrong';
}
}
mysqli_close($con);
}
?>
第二種形式的PHP文件：
<?php
error_reporting(E_ALL);
ini_set('display_errors', 1);
session_start();
print_r($_POST);
if($_SERVER['REQUEST_METHOD']=='POST'){
include 'C.php';
$con = mysqli_connect($HostName,$HostUser,$HostPass,$DatabaseName);
$Squadra = $_POST['Squadra'];
$Ruolo = $_POST['Ruolo'];
$Numero_maglia = $_POST['Numero_maglia'];
$CheckSQL = "SELECT * FROM Persone, Persone2 WHERE Persone2.FK_persone = '" . ($_SESSION ['People_id']). "'";;
$check = mysqli_fetch_array(mysqli_query($con,$CheckSQL));
if(isset($check)){
echo 'Utente già registrato';
}
else{
$Sql_Query = "INSERT INTO Persone2 (FK_persone, Squadra, Ruolo, Numero_maglia) values ('" . ($_SESSION ['People_id']). "','$Squadra', '$Ruolo', '$Numero_maglia')";
if(mysqli_query($con,$Sql_Query))
{
echo 'Registration Successfully';
}
else
{
echo 'Something went wrong';
}
}
mysqli_close($con);
}
?>
將文件XML轉換為第二種形式：
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.bruzi.myord.Activity2">
<EditText
android:id="@+id/editText6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="32dp"
android:layout_marginStart="32dp"
android:layout_marginTop="32dp"
android:ems="10"
android:hint="ID_People2"
android:inputType="textPersonName"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="@+id/editText7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="32dp"
android:layout_marginStart="32dp"
android:layout_marginTop="32dp"
android:ems="10"
android:hint="Squadra"
android:inputType="textPersonName"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/editText6" />
<EditText
android:id="@+id/editText3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="32dp"
android:layout_marginStart="32dp"
android:layout_marginTop="32dp"
android:ems="10"
android:hint="Ruolo"
android:inputType="textPersonName"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/editText7" />
<EditText
android:id="@+id/editText4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="32dp"
android:layout_marginStart="32dp"
android:layout_marginTop="32dp"
android:ems="10"
android:hint="Numero maglia"
android:inputType="textPersonName"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/editText3" />
<Button
android:id="@+id/button55"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="32dp"
android:layout_marginEnd="32dp"
android:layout_marginStart="32dp"
android:layout_marginTop="32dp"
android:background="@android:color/holo_blue_light"
android:text="Registrazione"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/editText4" />
</android.support.constraint.ConstraintLayout>
1 個解決方案
解決方案1
1 已采納 2018-03-29 15:44:44
這是一個漫長的旅程，步驟如下：
首先：您需要確保php服務器以xml或json格式返回所需的值，可以根據需要通過創建Web服務來實現。
第二：從android應用程序中，您需要使用http post或get與Web服務進行通信。
第三：來自網絡服務的響應應由您的Android應用解析。 解析器將讀取響應並為您提供所需的字段值（有許多可用的解析包）
第四：獲得值之后，您可以選擇將它們存儲在首選項或sqlite表中（以備將來使用），或使用intent直接將其發送到下一個活動。
掌握這項技術后，您將可以制作需要后端服務器的任何類型的移動應用程序。
祝好運
如何在活動Android應用程序之間傳遞“ EditText”值
[英]How to pass an “EditText” value between activities Android Application
如何將android的edittext值傳遞給Java RESTFUL Web服務URL
[英]How to pass edittext value from android to java RESTFUL webservice url
如何限制在Android Studio / Java中輸入到EditText中的整數值
[英]How to limit an integer value entered into an EditText in Android Studio/Java
Android Studio Java：如何將 EditText Input 的值存儲為 double？
[英]Android Studio Java: How to I store the value of an EditText Input as double?
通過Android Studio中的AsyncTask將全局變量傳遞給php文件
[英]Pass global variable to php file through AsyncTask in Android Studio
聲明:本站的技術帖子網頁，遵循CC BY-SA 4.0協議，如果您需要轉載，請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.
相關問題
無法在Android的類中傳遞變量值
如何在活動Android應用程序之間傳遞“ EditText”值
如何將android的edittext值傳遞給Java RESTFUL Web服務URL
如何限制在Android Studio / Java中輸入到EditText中的整數值
Android Studio Java：如何將 EditText Input 的值存儲為 double？
將android studio中的變量值發送到php
如何在Android Studio中將變量名作為參數傳遞
通過Android Studio中的AsyncTask將全局變量傳遞給php文件
將edittext值從android傳遞到Web服務
Android工作室沒有從editText框中獲取價值
相關標簽