Java determines whether it is in json format

java determines whether the json format is legal

## Neither the JsonObject nor the JsonArray object can quickly determine whether the json format is legal There is no other way, so we have to use the method of catching exceptions to determine the legality of json.

The code is as follows:

/**
 * 判断是JsonObject
 * @param obj
 * @return
 */
public static boolean isJsonObject(Object obj) {
    String content = obj.toString();
    try {
        JSONObject.parseObject(content);
        if (content.startsWith("{")) {
            return true;
        } else {
            return false;
        }
    } catch (Exception e) {
        return false;
    }
}
/**
 * 判断是JsonArray
 * @param obj
 * @return
 */
public static boolean isJsonArray(Object obj) {
    String content = obj.toString();
    try {
        JSONArray.parseArray(content);
        if (content.startsWith("[")) {
            return true;
        } else {
            return false;
        }
    } catch (Exception e) {
        return false;
    }
}

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