The integration method of GraphQL Java Anotations and Java class libraries

Graphql Java Annotions is a library for defining Graphql Schema in the Java class.It provides a set of annotations that can easily map the GraphQL type to the Java class and map the method to the GraphQL field. To integrate GraphQL Java Annotation and Java Library, you need to follow the following steps: 1. Add dependencies: First of all, we need to add Graphql Java Annotations library to the dependence of the project.You can add the following dependencies to the construction file of the project through Maven or Gradle: <dependency> <groupId>com.graphql-java-kickstart</groupId> <artifactId>graphql-java-annotations</artifactId> <version>12.0.0</version> </dependency> 2. Define the GraphQL type: Use the annotations provided by the GraphQL Java Annotations library to define the GraphQL type for the Java class.For example, assuming we have a simple Person class, we can use `@Graphqlfype` to define it as Graphql type, and use the`@graphqlfield` to define its field: @GraphQLType public class Person { @GraphQLField private String name; // getters and setters } 3. Create Graphql Schema: Use the `Schemaparser` class provided by Graphql Java Annotations Library to convert the Java class with Graphql Schema.You can create GraphQL SCHEMA in the following way: SchemaParser schemaParser = new SchemaParser(); GraphQLSchema schema = schemaParser.parse(Person.class); 4. Analyze the GraphQL query: Use the `Graphql` class provided by the GraphQL Java library, create a GraphQL instance, and use this instance to analyze the Graphql query.For example, suppose we have a graphql query string: String query = "{ name }"; ExecutionResult executionResult = graphQL.execute(query); In the above example, we created a Graphql instance using the `Graphql` class in the GraphQL Java library, and used the` Execute` method to analyze the GraphQL query string.The results of the query will be included in the `ExecutionResult` object. In this way, we complete the integration of Graphql Java Annotations and Java class libraries.By using the GraphQL Java Annotations library, it can easily convert the Java class and Graphql Schema and use the existing features of the Java class library. Hope this article will help you!