標籤：
get請求1： NSURL*url = [NSURLURLWithString:@"http://127.0.0.1/demo.json"];
NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:1 timeoutInterval:15];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
//
if (!connectionError) {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
//判斷伺服器返回是否成功
if (httpResponse.statusCode == 200) {
//處理伺服器返回的資料(解析json)
//把json形式的字串 解析成對象
// NSJSONReadingMutableContainers = (1UL << 0), //返回的數組或字典是可變的
// NSJSONReadingMutableLeaves = (1UL << 1), //設定json中的字串是可變的 .但是ios7之後.就不起作用了
//以上兩種方式要求.返回的資料必須是json形式的字串,否則解析會出錯
// NSJSONReadingAllowFragments = (1UL << 2) //不要求資料是json形式的字串
// 解析json返回的對象,只有兩種類型 字典 數組
NSError *error= nil;
id json = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
//判斷解析json的時候是否出錯
if (!error) {
NSLog(@"%@",json);
// NSLog(@"%@ %@",json[@"message"],[json[@"message"] class]);
}else{
NSLog(@"解析json出錯:%@",error);
}
}else{
NSLog(@"伺服器內部錯誤");
}
}else{
NSLog(@"發送請求錯誤 %@",connectionError);
}
}];} get請求2：（要求標頭攜帶參數需要轉義） @interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
//當url的字串，有特殊內容（漢字，空格，url中的特殊符號） NSString *name = @"abc&123"; //只會對漢字 空格進行百分比符號的轉義 name = [name stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
//對url中的特殊符號進行轉義
name = [self encodeToPercentEscapeString:name];
NSString *pwd = @"abc";
NSString *str = [NSString stringWithFormat:@"http://127.0.0.1/php/login.php?username=%@&password=%@",name,pwd];
NSURL *url = [NSURL URLWithString:str];
NSLog(@"%@",url);
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
//
if (!connectionError) {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
if (httpResponse.statusCode == 200) {
//
id json = [NSJSONSerialization JSONObjectWithData:data options:0 error:NULL];
NSLog(@"%@",json);
}else{
NSLog(@"伺服器內部錯誤");
}
}else{
NSLog(@"請求錯誤%@",connectionError);
}
}];
}
//進行url編碼 （但是不對漢字和空格進行編碼）
- (NSString *)encodeToPercentEscapeString: (NSString *) input
{
NSString *outputStr = (NSString *) CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,(CFStringRef)input,NULL,(CFStringRef)@"!*‘();:@&=+ $,/?%#[]",kCFStringEncodingUTF8));
return outputStr;
}
//url解碼
- (NSString *)decodeFromPercentEscapeString: (NSString *) input
{
return [input
stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding] ;} post請求：（攜帶參數請求體傳遞） #import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//當url的字串，有特殊內容（漢字，空格，url中的特殊符號）
NSURL *url = [NSURL URLWithString:@"http://127.0.0.1/php/login.php"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
//設定發送post請求
request.HTTPMethod = @"post";
//請求體 沒有對url中的特殊符號轉義
NSString *name = @"abc123"; //自動對漢字和空格做了百分比符號轉義
NSString *pwd = @"abc";
NSString *strBody = [NSString stringWithFormat:@"username=%@&password=%@",name,pwd];
request.HTTPBody = [strBody dataUsingEncoding:NSUTF8StringEncoding];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
//
if (!connectionError) {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
if (httpResponse.statusCode == 200) {
//
id json = [NSJSONSerialization JSONObjectWithData:data options:0 error:NULL];
NSLog(@"%@",json);
}else{
NSLog(@"伺服器內部錯誤");
}
}else{
NSLog(@"請求錯誤%@",connectionError);
}
}];}
NSURLConnection iOS2.0蘋果原生請求
