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我正嘗試將GraphQL Java(https://github.com/andimarek/graphql-java)原型化並開始從hello world示例構建它。我正在使用GraphiQL來調用帶有模式的graphQL服務,它正在爲模式{hello1}工作,但不適用於模式{testPojo}。請在下面找到我正在運行的代碼。有人能讓我知道下面的代碼有什麼問題。Graphql Java hello world:向父架構添加子架構失敗
static GraphQLSchema schema = null;
/**
* POJO to be returned for service method 2
* @author
*
*/
private class TestPojo {
String id;
String name;
TestPojo(String id, String name) {
this.id = id;
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
/**
* service method 1
* @return
*/
public String greeting1() {
return "Hello123";
}
/**
* service method 2
* @return
*/
public TestPojo greeting2() {
return new TestPojo("1","Jack");
}
/**
* GraphQl endpoint invoked using GraphiQl
* @param query
* @return
*/
@RequestMapping("/query")
public Object testGraphQLWithQuery(@RequestParam("query") String query) {
return new GraphQL(schema).execute(query).getData();
}
// Schema definition for graphQL
static {
// sub schema to be added to parent schema
GraphQLObjectType testPojo = newObject().name("TestPojo").description("This is a test POJO")
.field(newFieldDefinition().name("id").type(GraphQLString).build())
.field(newFieldDefinition().name("name").type(GraphQLString).build())
.build();
// parent schema
GraphQLObjectType queryType = newObject().name("helloWorldQuery")
.field(newFieldDefinition().type(GraphQLString).name("hello1").dataFetcher(new DataFetcher() {
@Override
public Object get(DataFetchingEnvironment arg0) {
Object a = new GrapgQLSampleController().greeting1();
return a;
}
}).build())
.field(newFieldDefinition().type(testPojo).name("testPojo").dataFetcher(new DataFetcher() {
@Override
public Object get(DataFetchingEnvironment arg0) {
Object a = new GrapgQLSampleController().greeting2();
return a;
}
}).build())
.build();
schema = GraphQLSchema.newSchema().query(queryType).build();
}