在Java中动态修改未知JSON的JsonNode(Modify JsonNode of unknown JSON dynamically in Java)

 我试图修改一个JSON（未知结构），其中JsonPath及其等效的XML Xpath是我所知道的。 
 
 我已经厌倦了使用com.jayway.jsonpath.JsonPath库。 JsonPath的问题是，它返回值但我无法修改目标节点。 
 
 以下是我的代码片段 
 
JsonPath.read(jsonFile, jsonPath);
JsonPath.parse(jsonPath);
System.out.println("Author: "+JsonPath.read(jsonFile, jsonPath));
 
 我尝试使用杰克逊，如前面提到的排队中提到的，但它需要逐个节点遍历，如下所示 
 
((ObjectNode) parent).put(fieldName, newValue);
 
 由于结构未知，我无法做到这一点。 
 
 我已经尝试了递归解析JSON对象的问题的答案，但它说如何解析不修改 
 
 我需要做以下几点 
 
JsonNode root = mapper.readTree("Json in form of String");
((JsonNode)(root.get("JsonPath")).set("New Value");
 
 有什么办法可以实现这一目标吗？ 

I am trying to modify a JSON (of an unknown structure) where the JsonPath and its equivalent XML Xpath is known to me.
 
I have tired using com.jayway.jsonpath.JsonPath library for the same. The problem with JsonPath is, it returns me the value but I am not able to modify the Target Node.
 
Follows is my code snippet for the same
 
JsonPath.read(jsonFile, jsonPath);
JsonPath.parse(jsonPath);
System.out.println("Author: "+JsonPath.read(jsonFile, jsonPath));
 
I tried using Jackson as mentioned in previously asked quetion, But it needs to be traversed node by node as follows
 
((ObjectNode) parent).put(fieldName, newValue);
 
which I cannot do due to unknown structure.
 
I have tried the answer given to the question recursively parse JSON object but it says how to parse not modify
 
I need to do the follows
 
JsonNode root = mapper.readTree("Json in form of String");
((JsonNode)(root.get("JsonPath")).set("New Value");
 
Is there any way in which this can be achieved?

原文：https://stackoverflow.com/questions/41360172