[英]Unable to send data to server using volley android
I want to make a user registration page using volley but I am unable to send data to the server. 我想使用排球制作一个用户注册页面,但无法将数据发送到服务器。 It's the first time I am using volley.
这是我第一次使用凌空抽射。 I have included all the permissions and server is also running appropriately, I am just unable to send the data to the online database.
我已经包含所有权限,服务器也正在正常运行,我只是无法将数据发送到在线数据库。
When I run it, it gives the following message: "warning mysqli prepare() expects parameter 1 to be mysqli, boolean given in home..." 当我运行它时,它会显示以下消息:“警告mysqli prepare()期望参数1为mysqli,在家中给定的布尔值...”
Please help. 请帮忙。 Here's my android code: User class contains String of name, username, mobile, password.
这是我的android代码:用户类包含名称,用户名,手机,密码的字符串。
private void registerUser(final User user) {
StringRequest stringRequest = new StringRequest(Request.Method.POST, SERVER_ADDRESS + "Register.php",
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Toast.makeText(Register.this,response,Toast.LENGTH_LONG).show();
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(Register.this,error.toString(),Toast.LENGTH_LONG).show();
}
}){
@Override
protected Map<String,String> getParams(){
Map<String,String> params = new HashMap<String, String>();
params.put("name",user.name);
params.put("username", user.username);
params.put("mobile", user.mobile);
params.put("password", user.password);
Log.d(name+username+"her", "her");
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}
}
And here's the php file: 这是php文件:
<?php
if($_SERVER['REQUEST_METHOD']=='POST'){
$con=mysqli_connect("localhost","dbName","pass","userName");
$name = $_POST["name"];
$username = $_POST["username"];
$mobile = $_POST["mobile"];
$password = $_POST["password"];
$statement = mysqli_prepare($con, "INSERT INTO UserDetails (name, username, mobile, password) VALUES (?, ?, ?, ?)");
mysqli_stmt_bind_param($statement, "ssss", $name, $username, $mobile, $password);
mysqli_stmt_execute($statement);
echo $name, $username, $mobile, $password;
mysqli_stmt_close($statement);
mysqli_close($con);}
?>
You need to start the queue before adding any request to it. 您需要在添加任何请求之前启动队列。
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.start()
requestQueue.add(stringRequest);
Please make sure that you call start() only once.
请确保只调用一次start()。 Hence create a singleton class VolleyManager, when you create a instance of this class it should create a request queue and start it.
因此,创建一个单例类VolleyManager,当您创建此类的实例时,应创建一个请求队列并启动它。 For each API call just call VolleyManager.getInstance().getQueue().add(stringRequest)
对于每个API调用,只需调用VolleyManager.getInstance()。getQueue()。add(stringRequest)
Add 加
global $con 全球$ con
in your php file. 在您的php文件中。
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