Question
Using Java is there an easy way to check whether a given file conforms to json format?
Using gson, the best i can do is:
private final JsonParser parser = new JsonParser();
jsonElement = parser.parse(new FileReader(fileName));
if (jsonElement.isJsonObject()) {
return true;
} else {
return false;
}
Any cleaner ideas?
Solution
Gson will throw JsonParseException
if the JSON is not parseable. You just have to catch
that with JsonParser#parse()
in the try
.
try {
new JsonParser().parse(jsonSource);
// Valid.
} catch (JsonParseException e) {
// Invalid.
}
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