#import "NSDataToDictionaryTools.h" @implementation NSDataToDictionaryTools +(NSData *)NSDictionaryToNSData:(NSDictionary *)dictionary { NSMutableData *data = [[NSMutableData alloc] init]; NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data]; [archiver encodeObject:dictionary forKey:@"KeyValue"]; [archiver finishEncoding]; return data; } +(NSString *)NSDictionaryToJSON:(NSDictionary *)dictionary { NSData *prettyJson = [NSJSONSerialization dataWithJSONObject:dictionary options:NSJSONWritingPrettyPrinted error:nil]; NSString *jsonstr = [self NSDataToNSString:prettyJson]; return jsonstr; } +(NSDictionary *)NSDataToNSDictionary:(NSData *)data { //NSData-->NSDictionary NSDictionary *myDictionary = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil]; //NSData-->NSDictionary // NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:data]; // NSDictionary *myDictionary = [unarchiver decodeObjectForKey:@"KeyValue"]; // [unarchiver finishDecoding]; return myDictionary; } //NSString和NSData转换(即可作json串互相转换) +(NSString *)NSDataToNSString:(NSData *)data { //NSData-> NSString NSString *myString = [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding]; return myString; //NSString->NSData //NSString *aString = @"我是NSString"; //NSData *testData = [testString dataUsingEncoding: NSUTF8StringEncoding]; } @end