Javier Irrazábal :
I need to get the value in this arrayNode (Just in case, I know it's going to be only one value in the array - Please, don't ask me why, It is the way that I'm receiving it):
"data": {
"services": [
"[email protected]"
]
}
I'm running this portion of code:
ArrayNode arrNode = (ArrayNode) new ObjectMapper().readTree(resBody).path("data").get("services");
if (arrNode.isArray()) {
for (final JsonNode objNode : arrNode) {
serviceId = objNode.get(0).textValue();
log.info("serviceId: " + serviceId + " is available");
}
}
I am getting a java.lang.NullPointerException: null in this line: serviceId = objNode.get(0).textValue();
Please, can anyone take a look at this? It would be highly appreciated.
Jon Skeet :
You're calling objNode.get(0), which would retrieve the first value of an array if objNode were an array node - but it's not, it's the node within the array. JsonNode.get(int) is documented to return null if the node isn't an array.
You just need:
serviceId = objNode.textValue();
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