如何在SPQR中使用JSON标量

Question

我想在服务类中返回JSON字面

@GraphQLQuery(name = "renderUI", description = "Schema for your form")
public String renderUI() {
     String genratedSchema = "{" +
            "  "schema": {" +
            "    "type": "object"," +
            "    "id": "urn:jsonschema:profile:model:DemoForm"," +
            "    "properties": {" +
            "      "comment": {" +
            "        "type": "string"," +
            "        "title": "Comment"" +
            "      }" +
            "    }" +
            "  }," +
            "  "form": [" +
            "    {" +
            "      "key": "comment"," +
            "      "type": "textarea"," +
            "      "required": false," +
            "      "description": "Add your Comment here"," +
            "      "placeholder": "fill your comment please"" +
            "    }" +
            "  ]" +
            "}";
    return  genratedSchema;
}

上面的代码逃脱了响应中的所有引号

{
  "data": {
    "renderUI": "{  "schema": {    "type": "object",    "id": "urn:jsonschema:com:fnstr:bankprofile:gppbankprofile:model:DemoForm",    "properties": {      "comment": {        "type": "string",        "title": "Comment"      }    }  },  "form": [    {      "key": "comment",      "type": "textarea",      "required": false,      "description": "Add your Comment here",      "placeholder": "fill your comment please"    }  ]}"
  }
}

如何删除逃生字符？

Answer 1

graphQl响应已经是JSON，因此内部的任何字符串显然都需要适当地逃脱。如果要在其中添加动态对象，则实际上必须返回对象，而不是字符串。该对象可以是具有正确结构的任何东西，可以是Map，Jackson的ObjectNode，GSON的JsonObject或POJO。

，例如

@GraphQLQuery(name = "renderUI", description = "Schema for your form")
public Map<String, Object> renderUI() {
    Map<String, Object> dynamic = new HashMap<>();
    dynamic.put("schema", ...); //fill the whole structure
    return dynamic;
}

或

@GraphQLQuery(name = "renderUI", description = "Schema for your form")
public ObjectNode renderUI() {
    return ...;
}