Ios_json string to Dictionary, dictionary to JSON string

JSON conversion issues are often encountered during development. Take a note of your own code below:

#pragma mark-json Operation/** * Convert formatted JSON-formatted string into dictionary * * @param jsonstring jsonstring JSON-formatted string * * @return return dictionary */+ (nsdic    Tionary *) dictionarywithjsonstring: (NSString *) jsonstring{if (jsonstring = nil) {return nil;    } nsdata *jsondata = [jsonstring datausingencoding:nsutf8stringencoding];    Nserror *err;                                                        Nsdictionary *dic = [Nsjsonserialization jsonobjectwithdata:jsondata    Options:nsjsonreadingmutablecontainers error:&err];        if (err) {NSLog (@ "JSON parse failed:%@", err);    return nil; } return dic;} /** * Convert a JSON-formatted object (dictionary) into a JSON string * * @param jsonobject JSON Object * * @return a JSON-formatted string */+ (NSString *) Jsonstringwithobjec    T: (ID) jsonobject{//Convert dictionary or array to JSON string nserror *error = nil;                                                       NSData *jsondata = [Nsjsonserialization datawithjsonobject:jsonobject Options:nsjsonwritingprettyprinTed error:&error]; NSString *jsonstring = [[NSString alloc] Initwithdata:jsondata encoding:ns        Utf8stringencoding];    if ([jsonstring length] > 0 && error = = nil) {return jsonstring;    }else{return nil; }}

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Ios_json string to Dictionary, dictionary to JSON string