JSONException: java. lang. StringcannotbeconvertedtoJSONObject Solution

Using org. json. JSONException: java. lang. stringcannotbeconvertedtoJSONObject: print the string and check whether the json string is correct. After studying it for a long time, I finally found the problem ,... syn is using org. json. JSONException: java. lang. string cannot be converted to JSONObject: print the String and check whether the json String is correct. After studying it for a long time, I finally found the problem. The cause is that when writing a json file, it adopts UTF-8 encoding and utf8 has a BOM format. It is okay to remove this format. How to remove it? Another way is to remove the BOM header in java code: [java] public static String JSONTokener (String in) {// consume an optional byte order mark (BOM) if it exists if (in! = Null & in. startsWith ("\ ufeff") {in = in. substring (1) ;}return in ;}