Unreal Engine Study

소스코드에서 아래 내용을 찾는다

PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore" });

위의 코드에 HTTP 관련 모듈이름을 추가한다

PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore"

,"Http", "Json", "JsonUtilities" });

[HTTP]

HttpTimeout=300

HttpConnectionTimeout=-1

HttpReceiveTimeout=-1

HttpSendTimeout=-1

HttpMaxConnectionsPerServer=16

bEnableHttp=true

bUseNullHttp=false

HttpDelayTime=0

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"

#include "GameFramework/Actor.h"

#include "Runtime/Online/HTTP/Public/Http.h"

#include "MyHttpActor.generated.h"

UCLASS()

class CPP_HTTP_API AMyHttpActor : public AActor

{

GENERATED_BODY()

public:

FHttpModule* Http;

UFUNCTION()

void MyHttpCall(); // http 요청에 사용할 함수

// http GET 요청 직후 호출되는 콜백함수

void OnResponseReceived(FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful);

// 생성자 함수를 약간 변경한다

AMyHttpActor(const class FObjectInitializer& ObjectInitializer);

protected:

// Called when the game starts or when spawned

virtual void BeginPlay() override;

public:

// Called every frame

virtual void Tick(float DeltaTime) override;

};

// Fill out your copyright notice in the Description page of Project Settings.

#include "MyHttpActor.h"

// Sets default values

AMyHttpActor::AMyHttpActor(const class FObjectInitializer& ObjectInitializer)

: Super(ObjectInitializer)

{

  // Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.

PrimaryActorTick.bCanEverTick = true;

Http = &FHttpModule::Get();

}

// Called when the game starts or when spawned

void AMyHttpActor::BeginPlay()

{

MyHttpCall();

Super::BeginPlay();

}

void AMyHttpActor::MyHttpCall()

{

TSharedRef<IHttpRequest> Request = Http->CreateRequest();

Request->OnProcessRequestComplete().BindUObject(this, &AMyHttpActor::OnResponseReceived);

//This is the url on which to process the request

Request->SetURL("http://unreal.mywebcommunity.org/getInt.php");

Request->SetVerb("GET");

Request->SetHeader(TEXT("User-Agent"), "X-UnrealEngine-Agent");

Request->SetHeader("Content-Type", TEXT("application/json"));

Request->ProcessRequest();

}

void AMyHttpActor::OnResponseReceived(FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful)

{

//Create a pointer to hold the json serialized data

TSharedPtr<FJsonObject> JsonObject;

//Create a reader pointer to read the json data

TSharedRef<TJsonReader<>> Reader = TJsonReaderFactory<>::Create(Response->GetContentAsString());

//Deserialize the json data given Reader and the actual object to deserialize

if (FJsonSerializer::Deserialize(Reader, JsonObject))

{

//Get the value of the json object by field name

int32 recievedInt = JsonObject->GetIntegerField("customInt");

//Output it to the engine

GEngine->AddOnScreenDebugMessage(1, 2.0f, FColor::Green, FString::FromInt(recievedInt));

}

}

// Called every frame

void AMyHttpActor::Tick(float DeltaTime)

{

Super::Tick(DeltaTime);

}

<?php
	//Create a variable to be used in 
	$theVar = array('customInt' => 5);

	//Set the headers
	header('Content-Type: application/json');

	//Encode the variable, and save the encoded string
	$encoded = json_encode($theVar);

	//Output it
	echo $encoded; 

?>

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"

#include "GameFramework/Actor.h"

#include "Runtime/Online/HTTP/Public/Http.h"

#include "MyHttpActor.generated.h"

UCLASS(BlueprintType, Blueprintable)

class CPP_HTTP_API AMyHttpActor : public AActor

{

GENERATED_BODY()

public:

FHttpModule* Http;

UFUNCTION(BlueprintCallable, Category="HTTP")

void MyHttpCall(FString url); // http 요청에 사용할 함수

// http GET 요청 직후 호출되는 콜백함수

void OnResponseReceived(FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful);

//블루프린트에서 구현할 함수 선언

//이 방법을 사용하면 블루프린트에서 구현된 이벤트함수를 C++에서 호출할 수 있다

UFUNCTION(BlueprintImplementableEvent, Category="HTTP")

void PrintOnScreen(bool bLogin); // 정수 파라미터라면 int32형을 사용해야 한다

// 생성자 함수를 약간 변경한다

AMyHttpActor(const class FObjectInitializer& ObjectInitializer);

protected:

// Called when the game starts or when spawned

virtual void BeginPlay() override;

public:

// Called every frame

virtual void Tick(float DeltaTime) override;

};

// Fill out your copyright notice in the Description page of Project Settings.

#include "MyHttpActor.h"

#include "../Public/MyHttpActor.h"

// Sets default values

AMyHttpActor::AMyHttpActor(const class FObjectInitializer& ObjectInitializer)

: Super(ObjectInitializer)

{

  // Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.

PrimaryActorTick.bCanEverTick = true;

Http = &FHttpModule::Get();

}

// Called when the game starts or when spawned

void AMyHttpActor::BeginPlay()

{

Super::BeginPlay();

}

void AMyHttpActor::MyHttpCall(FString url)

{

TSharedRef<IHttpRequest> Request = Http->CreateRequest();

Request->OnProcessRequestComplete().BindUObject(this, &AMyHttpActor::OnResponseReceived);

//This is the url on which to process the request

Request->SetURL(url);

Request->SetVerb("GET");

Request->SetHeader(TEXT("User-Agent"), "X-UnrealEngine-Agent");

Request->SetHeader("Content-Type", TEXT("application/json"));

Request->ProcessRequest();

}

void AMyHttpActor::OnResponseReceived(FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful)

{

//웹서버로부터 응답된 내용을 화면에 디버그 문자열로 출력해본다

//GEngine->AddOnScreenDebugMessage(1, 2.0f, FColor::Green, Response->GetContentAsString());

//Create a pointer to hold the json serialized data

TSharedPtr<FJsonObject> JsonObject;

//Create a reader pointer to read the json data

TSharedRef<TJsonReader<>> Reader = TJsonReaderFactory<>::Create(Response->GetContentAsString());

//Deserialize the json data given Reader and the actual object to deserialize

if (FJsonSerializer::Deserialize(Reader, JsonObject))

{

bool login = JsonObject->GetBoolField("login");

//이 클래스에서 선언하고 블루프린트에서 구현된 함수 호출

PrintOnScreen(login);

}

}

// Called every frame

void AMyHttpActor::Tick(float DeltaTime)

{

Super::Tick(DeltaTime);

}

<?php

header('Content-type: application/json; charset=UTF-8');

  $id = $_REQUEST["id"];

  $pwd = $_REQUEST["pwd"];

  $result = "";

  // DB 코드 시작

  $host='fdb24.awardspace.net';

  $user='2915954_user';

  $pass='2915954Database';

  $db='2915954_user';

  $arr = array();

  $conn = mysqli_connect($host,$user,$pass,$db);

  if ($conn->connect_error) {

$arr["error"] = true;

        echo json_encode($arr);

return;

  }

  if($conn) {

    $arr["connection"] = true;

  }

  $select_query = "SELECT * FROM Member WHERE memid='$id' AND mempwd='$pwd' ";

  $result_set = mysqli_query($conn, $select_query);

  if (mysqli_num_rows($result_set) > 0) {

$arr["login"] = true;

  } else {

$arr["login"] = false;

  }

  mysqli_close($conn);

  $json = json_encode($arr);

  echo $json;

?>