Question

我需要一种无需反序列化即可解析json响应的方法。请在下面找到我的示例json响应：需要从results-> data-> categories获取值。不确定如何遍历类别值。提前致谢。请在下面找到我的示例json响应和示例代码：

{
    "results": {
        "data": {
            "columns": [{
                "data_type": 0,
                "key": "",
                "name": "",
                "sort_key": ""
            }],
            "categories": [{
                    "data_type": 0,
                    "key": "",
                    "name": "",
                    "sort_key": ""
                },
                {
                    "data_type": 0,
                    "key": "",
                    "name": "",
                    "sort_key": ""
                }
            ],
            "properties": {
                "container": false,
                "container_size": 0,
                "create_date": "",
                "create_user_id": 0,
                "description": "",
                "description_multilingual": {
                    "en": "",
                    "de": ""
                },
                "external_create_date": "date",
                "external_identity": "",
                "external_identity_type": "",
                "external_modify_date": "date",
                "external_source": "",
                "favorite": false,
                "guid": "",
                "icon": "",
                "icon_large": "",
                "id": 0,
                "modify_date": "date",
                "modify_user_id": 0,
                "name": "",
                "name_multilingual": {
                    "en": "",
                    "de": ""
                },
                "owner": "",
                "owner_group_id": 0,
                "owner_user_id": 0,
                "parent_id": 0,
                "reserved": false,
                "reserved_date": "",
                "reserved_user_id": 0,
                "type": 0,
                "type_name": "",
                "versions_control_advanced": false,
                "volume_id": 0
            }
        }
    },
    "links": {
        "data": {
            "self": {
                "body": "",
                "content_type": "",
                "href": "",
                "method": "",
                "name": ""
            }
        }
    }
}

请在下面找到我使用的示例代码：

ResponseEntity<LinkedHashMap<String, Object>> resp = restTemplate.exchange(url,HttpMethod.Get, entity,typeref);
resp.getBody().forEach((key, value)) ->{
if(key.equalsIgnoreCase("results")){
  LinkedHashMap<String, Object> results = (LinkedHashMap<String, Object>)value;
  LinkedHashMap<String, Object> data = (LinkedHashMap<String, Object>)results.get("data");
  LinkedHashMap<String, Object> categories= (LinkedHashMap<String, Object>)data.get("categories");
  //read category properties here

}
});

Answer 1

this is more simple example for json parse in java

在这里您可以做类似的事情：

//response is the string contains the json
JSONObject mainObj = new JSONObject(response);
//now we have the main json object 
String cat = mainObj.getJSONObject("results").getJSONObject("data").getString("categories");
//now we have the string contains the catigories 
JSONObject categories = new JSONObject(cat);

解析json响应并反序列化到对象java

1 个答案: