JSONObject 试错

public static void main(String[] args) {
String context = "\"{\"business_scene\":\"scanApp\"}";
JSONObject jsonMap = JSONObject.fromObject(context);
System.out.println(ToStringBuilder.reflectionToString(jsonMap));
}

Exception in thread "main" net.sf.json.JSONException: A JSONObject text must begin with '{' at character 1 of "{"business_scene":"scanApp"}
at net.sf.json.util.JSONTokener.syntaxError(JSONTokener.java:512)
at net.sf.json.JSONObject._fromJSONTokener(JSONObject.java:1096)
at net.sf.json.JSONObject._fromString(JSONObject.java:1317)
at net.sf.json.JSONObject.fromObject(JSONObject.java:185)
at net.sf.json.JSONObject.fromObject(JSONObject.java:154)