解析来自服务器的非常复杂的 JSON 响应，用于 android 应用程序

Question

I made a successfully connection to a remote server and the response i got was 15,000 words JSONObject. I'm pretty good with JSON parsing but this is nothing like I've seen before. this is a very small part of the JSON response i'm getting :

\\":\\"DI_Orders\\",\\"Query\\":\\"SELECT * from TBL_Orders\\",\\"DataSourceID\\":\\"29cdf9d8-b6fe-4ea5-ac14-e5860a9494db\\",\\"Columns\\":[{\\"@ID\\":\\"C1\\",\\"@DataType\\":\\"System.String\\",\\"ColumnName\\":\\"Branch\\"},{\\"@ID\\":\\"C2\\",\\"@DataType\\":\\"System.Int32\\",\\"ColumnName\\":\\"DelayInDays\\"},{\\"@ID\\":\\"C3\\",\\"@DataType\\":\\"System.Int32\\",\\"ColumnName\\":\\"OrderID\\"},{\\"@ID\\":\\"C4\\",\\"@DataType\\":\\"System.Int32\\",\\"ColumnName\\":\\"ProductID\\"},{\\"@ID\\":\\"C5\\",\\"@DataType\\":\\"System.String\\",\\"ColumnName\\":\\"ProductName\\"},{\\"@ID\\":\\"C6\\",\\"@DataType\\":\\"System.Int32\\",\\"ColumnName\\":\\"Quantity\\"},{\\"@ID\\":\\"C7\\",\\"@DataType\\":\\"System.String\\",\\"ColumnName\\":\\"OrderStatus\\"}],\\"PrimaryKeyColumns\\":{\\"Column\\":{\\"@ID\\":\\"C7\\"}}},{\\"@ID\\":\\"231c9c51-00e3-4141-bf38-dae6f08d861c\\",\\"@StructureType\\":\\"Regular\\",\\"@Type\\":\\"Query\\",\\"@DataSourceType\\":\\"Sql\\",\\"DataItemName\\":\\"DI_DailySales\\",\\"Query\\":\\"SELECT * from DailySales\\",\\"DataSourceID\\":\\"29cdf9d8-b6fe-4ea5-ac14-e5860a9494db\\",\\"Columns\\":[

it looks like some type of SQL.. does anybody knows what that is? or how do i parse it to get specific details? I have no idea what to do with this long response..

Answer 1

It will be extremely likely that this structure might change since its quite big and it is probably mapping database tables directly, meaning modifying the schema will introduce changes to the response and also your parsers. Be careful not to fail with the parsing if something changes.

I pretty much always use Jackson mapper to map the JSON responses to specific Java Models,

But in your case i don't think you should parse the whole thing, i would have a model which will just parse the things you need out of this response as opposed to everything.

It will save you a lot of time writing the parsers and debbuging if something changes. Feels more maintainable not to get the whole thing. Eventually as you require more things you can parse more stuff out.

One other option is just to put it in a json object and use it as a huge HashMap, just extract values where needed from keys. This is pretty much opposite of what i would ever do, but might work better in your case.

On a side note, whoever wrote the webservice which responds like this should be shot :)