post NSURLConnection请求网络数据

标签：

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    [self httpSendDataWithUrl:@"http://127.0.0.1/php/login.php" andUserName:@"zhang&san" andPsw:@"zhang"];

}

-(void)httpSendDataWithUrl:(NSString*)url andUserName:(NSString*)username andPsw:(NSString*)psw

{

    //get请求的时候URL中的汉字空格,特殊字符不会进行编码,如果不自行编码,会出现错喔

    NSString *name=username;

    //oc 自带方法只会对空格汉字进行转义,不会转义特殊字符

    name=[name stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

    //对特殊字符进行转义

    name=[self encodeToPercentEscapeString:name];

    NSString *pwd=psw;

    NSString *httpUrl=url;

    //----------------------Get方法的URL-------------

//    NSString *str=[NSString stringWithFormat:@"?username=%@&password=%@",name,pwd];

//    httpUrl=[httpUrl stringByAppendingString:str];

//    NSURLRequest*request=[NSURLRequest requestWithURL:[NSURL URLWithString:httpUrl]];

    //----------------------Get方法的URL-------------

    //----------------------Post方法的URL和请求头-----------

    NSMutableURLRequest *mRequest=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:httpUrl]];

    mRequest.HTTPMethod=@"post";

    NSString *strBody=[NSString stringWithFormat:@"username=%@&password=%@",name,pwd];

    mRequest.HTTPBody=[strBody dataUsingEncoding:NSUTF8StringEncoding];

    //----------------------Post方法的URL和请求头-----------

    [NSURLConnection sendAsynchronousRequest:mRequest queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {

        if (!connectionError) {

            NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;

            if (httpResponse.statusCode == 200) {

                NSError *error=nil;

                id json = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];

                if (error) {

                    NSLog(@"json解析错误!!!!!!");

                }

                else

                {

                    NSLog(@"%@",json);

                }

            }else{

                NSLog(@"服务器内部错误");

            }

        }else{

            NSLog(@"请求错误%@",connectionError);

        }

    }];

}

//进行url编码 （但是不对汉字和空格进行编码）

- (NSString *)encodeToPercentEscapeString: (NSString *) input

{

    NSString *outputStr = (NSString *) CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,(CFStringRef)input,NULL,(CFStringRef)@"!*‘();:@&=+ $,/?%#[]",kCFStringEncodingUTF8));

    return outputStr;

}

//url解码

- (NSString *)decodeFromPercentEscapeString: (NSString *) input

{

    return [input

            stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding] ;

}

@end

post NSURLConnection请求网络数据

标签：

原文地址：http://www.cnblogs.com/tangranyang/p/4718256.html