如题，方法如下：
// NSDictionary 转 jsonString
- (NSString *)convertNSDictionaryToJsonString:(NSDictionary *)json {
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:json options:NSJSONWritingPrettyPrinted error:&error];
if (error) {
NSLog(@"json解析失败:%@", error);
return nil;
}
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
return jsonString;
}
// jsonString 转 NSDictionary
- (NSDictionary *)convertJsonStringToNSDictionary:(NSString *)jsonString {
if (jsonString == nil) {
return nil;
}
NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSError *error;
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&error];
if (error) {
NSLog(@"jsonString解析失败:%@", error);
return nil;
}
return json;
}
