NSArray、NSDictionary转成JSONString

2019-11-14 19:12:31

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1.NSArray转换成JSONString

 //NSArray+JSONString.h@interface NSArray (JSONString)- (NSString *)jsonStringWithPRettyPrint:(BOOL)prettyPrint;@end

@implementation NSArray (JSONString)-(NSString*) jsonStringWithPrettyPrint:(BOOL) prettyPrint {    NSError *error;    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:self                                                       options:(NSJSONWritingOptions) (prettyPrint ? NSJSONWritingPrettyPrinted : 0)                                                         error:&error];    if (! jsonData) {        NSLog(@"jsonStringWithPrettyPrint: error: %@", error.localizedDescription);        return @"[]";    } else {        return [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];    }}@end

2.NSDictionary 转成 JSONString

 //NSDictionary+JSONString.h@interface NSDictionary (JSONString)-(NSString*) jsonStringWithPrettyPrint:(BOOL) prettyPrint;@end

//NSDictionary+JSONString.m@implementation NSDictionary (JSONString)  -(NSString*) jsonStringWithPrettyPrint:(BOOL) prettyPrint {     NSError *error;     NSData *jsonData = [NSJSONSerialization dataWithJSONObject:self                                                   options:(NSJSONWritingOptions)    (prettyPrint ? NSJSONWritingPrettyPrinted : 0)                                                     error:&error];     if (! jsonData) {        NSLog(@"jsonStringWithPrettyPrint: error: %@", error.localizedDescription);        return @"{}";     } else {        return [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];     }  }@end