ASIHttpRequest加载网络数据和上传数据功能

//建立一个工程，导入第三方库，在AppDelegate.h
#import <UIKit/UIKit.h>
#import "ASIFormDataRequest.h"
@interface AppDelegate : UIResponder <UIApplicationDelegate,ASIHTTPRequestDelegate>
{
    //声明数据请求的成员变量
    ASIFormDataRequest *_request;
}
@property (strong, nonatomic) UIWindow *window;

@end

//在AppDelegate.m里写的代码

//通过POST请求加载数据
NSURL *url=[NSURL URLWithString:@"http://10.0.8.8/sns/my/login.php"];
//实例化成对象
_request=[[ASIFormDataRequest alloc]initWithURL:url];
//设置请求方式
[_request setRequestMethod:@"post"];
//添加参数
[_request addPostValue:@"aa_Zx" forKey:@"username"];
[_request addPostValue:@"ffff" forKey:@"password"];
//设置代理回调
_request.delegate=self;
//请求数据
[_request startAsynchronous];//异步请求，多线程

#param -mark ASIHttpRequest
-(void)requestFinished:(ASIHTTPRequest *)request
{
NSDictionary *dict=[NSJSONSerialization  JSONObjectWithData:request.responseData options:NSJSONReadingMutableContainers error:nil];
   NSLog(@"%@",dict);

}
- (void)requestFailed:(ASIHTTPRequest *)request
{
    NSLog(@"请求失败");
}

-(void)startLoadWebData:(NSString *)strURL
{
//实例化ASIHttpRequest对象
NSURL *url=[NSURL URLWithString:strURL];
_request=[[ASIHTTPRequest alloc]initWithURL:url];
_requent.delegate=self;
//开始加载数据
[_requenst startAsynchronous];
}
#pragma -mark ASIHttpRequestDelegate
//请求成功时调用该方法
-(void)requestFinished:(ASIHTTPRequest *)request
{
NSDictionary *dict=[NSJSONSerialization JSONObjectWithData:request.responseData
options:NSJSONReadingMutableContainers error:nil];
//代理接收数据
[self.delegate reciveData:[dict objectForKey:@"application"];
}
//请求网络数据失败时调用该方法
-(void)requestFailed:(ASIHTTPRequest *)request
{
NSLog(@"failed");
}