<dependencies>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-web</artifactId>
	</dependency>
	<!--graphql start-->
	<dependency>
		<groupId>com.graphql-java</groupId>
		<artifactId>graphql-spring-boot-starter</artifactId>
		<version>5.0.2</version>
	</dependency>
	<dependency>
		<groupId>com.graphql-java</groupId>
		<artifactId>graphql-java-tools</artifactId>
		<version>5.2.4</version>
	</dependency>
	<!--graphql end-->
	<dependency>
		<groupId>org.projectlombok</groupId>
		<artifactId>lombok</artifactId>
	</dependency>
</dependencies>

@Data
public class User {
    private int userId;
    private String userName;
    private String realName;
    private String email;
    private List<Post> posts;
    public User() {
    }
    public User(int userId, String userName, String realName, String email) {
        this.userId = userId;
        this.userName = userName;
        this.realName = realName;
        this.email = email;
    }
}

@Data
public class Post {
    private int postId;
    private String title ;
    private String text;
    private String  category;
    private User user;
    public Post() {
    }
    public Post(int postId, String title, String text, String category) {
        this.postId = postId;
        this.title = title;
        this.text = text;
        this.category = category;
    }
}

schema {
    query: Query,
}
type Query {
    # 獲取具體的用戶
    getUserById(id:Int) : User
    # 獲取具體的博客
    getPostById(id:Int) : Post
}
type User {
    userId : ID!,
    userName : String,
    realName : String,
    email : String,
    posts : [Post],
}
type Post {
    postId : ID!,
    title : String!,
    text : String,
    category: String
    user: User,
}

@Service
public class PostService implements GraphQLQueryResolver {
    /**
     * 為了測(cè)試，只查詢id為1的結(jié)果
     */
    public Post getPostById(int id){
        if(id == 1){
            User user = new User(1,"javadaily","JAVA日知錄","zhangsan@qq.com");
            Post post = new Post(1,"Hello,Graphql","Graphql初體驗(yàn)","日記");
            post.setUser(user);
            return post;
        }else{
            return null;
        }
    }
}

@Service
public class UserService implements GraphQLQueryResolver {
    List<User> userList = Lists.newArrayList();
    public User getUserById(int id){
        return userList.stream().filter(item -> item.getUserId() == id).findAny().orElse(null);
    }
    @PostConstruct
    public void  initUsers(){
        Post post1 = new Post(1,"Hello,Graphql1","Graphql初體驗(yàn)1","日記");
        Post post2 = new Post(2,"Hello,Graphql2","Graphql初體驗(yàn)2","日記");
        Post post3 = new Post(3,"Hello,Graphql3","Graphql初體驗(yàn)3","日記");
        List<Post> posts = Lists.newArrayList(post1,post2,post3);
        User user1 = new User(1,"zhangsan","張三","zhangsan@qq.com");
        User user2 = new User(2,"lisi","李四","lisi@qq.com");
        user1.setPosts(posts);
        user2.setPosts(posts);
        userList.add(user1);
        userList.add(user2);
    }
}

server.port = 8080
graphql.servlet.corsEnabled=true
# 配置端點(diǎn)
graphql.servlet.mapping=/graphql
graphql.servlet.enabled=true