iOS Base64编码

//.h

@interface NSString (util)

#pragma mark - base64

+ (NSString*)encodeBase64String:(NSString *)input;

+ (NSString*)decodeBase64String:(NSString *)input;

+ (NSString*)encodeBase64Data:(NSData *)data;

+ (NSString*)decodeBase64Data:(NSData *)data;@end

 

 

 

//.m

#import "ExtendNSString.h"

#import "GTMBase64.h"

 

static const char encodingTable[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

 

@implementation NSString (util)

#pragma mark - base64

+ (NSString*)encodeBase64String:(NSString * )input {

    NSData *data = [input dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];

    data = [GTMBase64 encodeData:data];

    NSString *base64String = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

    return base64String;

}

 

+ (NSString*)decodeBase64String:(NSString * )input {

    NSData *data = [input dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];

    data = [GTMBase64 decodeData:data];

    NSString *base64String = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

    return base64String;

}

 

+ (NSString*)encodeBase64Data:(NSData *)data {

    data = [GTMBase64 encodeData:data];

    NSString *base64String = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

    return base64String;

}

 

+ (NSString*)decodeBase64Data:(NSData *)data {

    data = [GTMBase64 decodeData:data];

    NSString *base64String = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

    return base64String;

}

@end