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Tag: json

Write java class with nested Map to custom json format using Gson

What Java data structure can be used to serialize to the following Json which have a set of child objects? Example: Writing John and Paul can be done by: Map<String,Person> but i cannot figure out how to nest the Child without having the ‘children’ property. Example: I am not sure it is relevant, but Gson is being used to create

SpringMVC, why ‘@RequestBody String body’ stops working after adding MappingJackson2HttpMessageConverter

need some help with jackson2 and springMvc. Issue: when adding MappingJackson2HttpMessageConverter jsons fail to parse (previously they did parse) with error below. I have following @Controller method in code: And it have been working just fine until I’ve decided to add MappingJackson2HttpMessageConverter() into converters. Like this: but after I do so, my requests stop to work with the following error

Cache-Control : no-cache

I tried to build an app in android studio which does json parsing from a URL server with ports (example: http://xxx.xxx.xxx.xxx:xxxx). So I found 3 methods such as asynctask, volley and okhttp. But the problem is everytime I parse it with these methods, the same exception always occurred. java.net.ProtocalException: Unexpected status line: HTTP/1.1 Cache-Control:no-cache Here is my code So is

String to JSONObject troubles

Is the first time I have to make this and I think I’m going to the wrong side. I trying to pass my String to a JSONObject but it’s nothing working. My code is this: The locationObj value after: (The code continue like a String and I don’t know why) The class I’m going to use to map later is

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