我有一个使用JsonPath加载的json模式,并且正在修改特定节点的值。现在,我需要将此节点放回根节点。我如何在杰克逊实现这一目标?
val objectMapper = new ObjectMapper()
val rootNode : JsonNode = objectMapper.readTree(uiSchema)
// I read the json schema above
val jacksonJsonProvider = new JacksonJsonProvider()
val jsonConfiguration = Configuration.defaultConfiguration.jsonProvider(jacksonJsonProvider)
var modifiedUiSchemaString = uiSchema
// Only if the value from domain data is a non empty array it will replace the value
Try { //JsonArray is the array of SimulationSet Nodes.
val simSetArray:ArrayNode = JsonPath.using(jsonConfiguration).parse(uiSchema).read(keyPath)
if (simSetArray.size() > 0) {
val simSetNode = simSetArray.get(0)
val simSetDomainArray : ListBuffer[JsonNode] = new ListBuffer[JsonNode]()
//Loop through List buffer and add to array and then add this array to ArrayNode
simulationSetList.foreach(simulationSet => {
val element = objectMapper.createObjectNode()
element.put( "label", simulationSet)
element.put ("value", simulationSet)
simSetDomainArray.+=(element)
})
//First put the element back in simset and add this simSetNode to rootNode
if (simSetDomainArray.nonEmpty && !(simSetNode.findValues("values") == simSetDomainArray.toList)) {
simSetNode.("values", simSetDomainArray)
modifiedUiSchemaString = objectMapper.writeValueAsString(rootNode)
}
}
} match {
case _ => modifiedUiSchemaString
case Failure(f) => LOGGER.error(f.getStackTrace.toString)
modifiedUiSchemaString
}
在上面的代码中,我需要修改simSetNode中的values元素,然后需要将此simSetNode添加到rootNode,我该怎么做?