mminky's

* 프레임워크 : Spring Boot

* 프로젝트 : Gradle

* 데이터베이스 : firebase의 firestore

[결과]

[ Firestore ]

우선 파이어스토어에 다음과 같이 데이터를 넣는다.

(문서ID를 FMgoGDQHyNQ7IfGycZ0h 이런 식으로 설정 할 필요는 없습니다!

제가 잘 모르고 자동완성ID를 한거에요ㅠ)

[ spring 코드 ]

controller / Restcontroller.java

package DSC4.cafein.controller;


import DSC4.cafein.domain.Member;
import DSC4.cafein.service.FirebaseService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

@org.springframework.web.bind.annotation.RestController
public class RestController {
    @Autowired
    FirebaseService firebaseService;

    @GetMapping("/insertMember")
    public String insertMember(@RequestParam Member member) throws Exception{
        return firebaseService.insertMember(member);
    }

    @GetMapping("/getMemberDetail")
    public Member getMemberDetail(@RequestParam String id) throws Exception{
        return firebaseService.getMemberDetail(id);
    }

    @GetMapping("/updateMember")
    public String updateMember(@RequestParam Member member) throws Exception{
        return firebaseService.updateMember(member);
    }

    @GetMapping("/deleteMember")
    public String deleteMember(@RequestParam String id) throws Exception{
        return firebaseService.deleteMember(id);
    }
}

domain / Member.java

package DSC4.cafein.domain;



public class Member {

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    private String email;
    private String username;
    private String id;
    private String password;




}

service / FirebaseService.java

package DSC4.cafein.service;

import DSC4.cafein.domain.Member;

public interface FirebaseService {
    public String insertMember(Member member) throws Exception;
    public Member getMemberDetail(String id) throws Exception;
    public String updateMember(Member member) throws Exception;
    public String deleteMember(String id) throws Exception;
}

service / FirebaseServiceImpl.java

package DSC4.cafein.service;

import DSC4.cafein.domain.Member;
import com.google.api.core.ApiFuture;
import com.google.cloud.firestore.DocumentReference;
import com.google.cloud.firestore.DocumentSnapshot;
import com.google.cloud.firestore.Firestore;
import com.google.cloud.firestore.WriteResult;
import com.google.firebase.cloud.FirestoreClient;
import org.springframework.stereotype.Service;

@Service
public class FirebaseServiceImpl implements FirebaseService{
    public static final String COLLECTION_NAME = "Member";
    @Override
    public String insertMember(Member member) throws Exception{
        Firestore firestore = FirestoreClient.getFirestore();
        ApiFuture<com.google.cloud.firestore.WriteResult> apiFuture =
                firestore.collection(COLLECTION_NAME).document(member.getId()).set(member);
        return apiFuture.get().getUpdateTime().toString();
    }

    @Override
    public Member getMemberDetail(String id) throws Exception {
        Firestore firestore = FirestoreClient.getFirestore();
        DocumentReference documentReference =
                firestore.collection(COLLECTION_NAME).document(id);
        ApiFuture<DocumentSnapshot> apiFuture = documentReference.get();
        DocumentSnapshot documentSnapshot = apiFuture.get();
        Member member = null;
        if(documentSnapshot.exists()){
            member = documentSnapshot.toObject(Member.class);
            return member;
        }
        else{
            return null;
        }
    }

    @Override
    public String updateMember(Member member) throws Exception {
        Firestore firestore = FirestoreClient.getFirestore();
        ApiFuture<com.google.cloud.firestore.WriteResult> apiFuture
                = firestore.collection(COLLECTION_NAME).document(member.getId()).set(member);
        return apiFuture.get().getUpdateTime().toString();
    }

    @Override
    public String deleteMember(String id) throws Exception {
        Firestore firestore = FirestoreClient.getFirestore();
        ApiFuture<WriteResult> apiFuture
                = firestore.collection(COLLECTION_NAME).document(id).delete();
        return "Document id: "+id+" delete";
    }
}

service / FirebaseInitializer.java

package DSC4.cafein.service;

import com.google.auth.oauth2.GoogleCredentials;
import com.google.firebase.FirebaseApp;
import com.google.firebase.FirebaseOptions;
import org.springframework.stereotype.Service;

import javax.annotation.PostConstruct;
import javax.swing.tree.ExpandVetoException;
import java.io.FileInputStream;

@Service
public class FirebaseInitializer {
    @PostConstruct
    public void initialize(){
        try{
            FileInputStream serviceAccount=
                    new FileInputStream("./src/main/resources/serviceAccountKey.json");
            FirebaseOptions options = new FirebaseOptions.Builder()
                    .setCredentials(GoogleCredentials.fromStream(serviceAccount))
                    .build();

            FirebaseApp.initializeApp(options);
        }
        catch(Exception e){
            e.printStackTrace();
        }
    }
}

build.gradle

implementation 'com.google.firebase:firebase-admin:6.8.1'

-> 이것만 추가해 주면 된다.

(전체코드)

plugins {
	id 'org.springframework.boot' version '2.3.5.RELEASE'
	id 'io.spring.dependency-management' version '1.0.10.RELEASE'
	id 'java'
}

group = 'DSC4'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'

repositories {
	mavenCentral()
}

dependencies {
	implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
	implementation 'org.springframework.boot:spring-boot-starter-web'
	//implementation 'android.arch.persistence.room:runtime:1.1.1'
	testImplementation('org.springframework.boot:spring-boot-starter-test') {
		exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
	}
	implementation 'com.google.firebase:firebase-admin:6.8.1'
	//annotationProcessor 'android.arch.persistence.room:compiler:1.1.1'


}

test {
	useJUnitPlatform()
}

[ 실행 방법 ]

application을 선택한 후 재생버튼 클릭

인터넷 창을 켜서 다음을 입력한다.

http://localhost:8080/getMemberDetail?id=문서아이디

※ 나의 경우 9070 port를 이용했다. ( http://localhost:9070/getMemberDetail?id=FMgoGDQHyNQ7IfGycZ0h )

id로 FMgoGDQHyNQ7IfGycZ0h을 줬기 때문에

문서id가 FMgoGDQHyNQ7IfGycZ0h인 것의 내용이 출력되는 것이다.

+) 참고

localhost 8080을 이용하고 있어서 9070으로 변경했다.

application.properties

server.port=9070

+) 참고2

serviceAccountKey.json 을 resource 폴더에 저장해서 관리했다.

하지만 이대로 깃허브에 올리면 난리가 나므로 .gitignore에 추가했다.

.gitignore

serviceAccountKey.json