iOS 字串轉碼+解壓

標籤：ios   解壓   字串   編碼   

最近遇到這樣的一個問題，從伺服器上返回的字串是經過壓縮的。下面記錄下解決方案

////  ViewController.m//  字串解壓縮////  Created by 杜甲 on 14-5-8.//  Copyright (c) 2014年 杜甲. All rights reserved.//#import "ViewController.h"#import "LFCGzipUtillity.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad{    [super viewDidLoad];// Do any additional setup after loading the view, typically from a nib.    //測試字串    NSString* data1r = @"%1F%C2%8B%08%00%00%00%00%00%00%00%05%C3%81%C3%81%11%00+%08%04%C2%B1j%C2%B6%01F%10%C2%9E%C2%A0g%C3%BF%25%C2%99%60%0F%05%C3%A3%C3%A4%C2%A0%C2%A4%1F%C3%A5%C3%88%C3%A9Km%C2%B4%C3%A9C%07ZL2%C3%B6%01%C3%84%C3%B2%C2%A5+0%00%00%00:222";//[request responseString];    NSLog(@"%@",data1r);    //第一次解碼    NSString* decode = [ self StringDecode:data1r];    //轉換成NSData    NSData* data = [decode dataUsingEncoding:NSISOLatin1StringEncoding];    //解壓縮    NSData* data13 = [LFCGzipUtillity uncompressZippedData:data];    //    NSString* str = [[NSString alloc] initWithData:data13 encoding:NSUTF8StringEncoding];    //解碼    NSString* decode1 = [self StringDecode:str];    NSLog(@"decode1 = %@",decode1);}- (NSString *)StringDecode:(NSString*)str{    return [[str stringByReplacingOccurrencesOfString:@"+" withString:@" "] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];}- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end

輸出：

decode1 = /測試字串

代碼下載：http://download.csdn.net/detail/qqmcy/7314665