iOS用ASIHttpRequest上传

1.新建一个single view工程，导入ASIHttpRequest库，导入MobileCoreServices、CFNetwork、SystemConfiguration和libz1.2.5.dylib四个系统库

2.随便导入一张图片，比如haoyou.png

3.ViewController.h

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#import <uikit uikit.h=""> #import "ASIHTTPRequest.h" #import "ASIFormDataRequest.h" @interface ViewController : UIViewController @property (nonatomic, copy)NSString *m_auth; @end</asihttprequestdelegate></uikit>

4.ViewController.m 添加两个按钮

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- (void)viewDidLoad {     [super viewDidLoad];           UIButton *loginBtn = [UIButton buttonWithType:UIButtonTypeRoundedRect];     loginBtn.frame = CGRectMake(100, 20, 120, 40);     [loginBtn setTitle:@"登录" forState:UIControlStateNormal];     [loginBtn addTarget:self action:@selector(login) forControlEvents:UIControlEventTouchUpInside];     [self.view addSubview:loginBtn];           UIButton *uploadBtn = [UIButton buttonWithType:UIButtonTypeRoundedRect];     uploadBtn.frame = CGRectMake(100, 80, 120, 40);     [uploadBtn setTitle:@"上传" forState:UIControlStateNormal];     [uploadBtn   addTarget:self action:@selector(upload) forControlEvents:UIControlEventTouchUpInside];     [self.view addSubview:uploadBtn]; }

5.实现login和upload两个方法

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- (void)login {     NSURL *url = [NSURL URLWithString:@"..."];//此处省略请求url     //请求     ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];     request.tag = 10;     request.delegate = self;     [request startAsynchronous]; }   - (void)upload {     NSURL* url = [NSURL URLWithString:@"..."];//此处省略请求url     UIImage* img = [UIImage imageNamed:@"haoyou.png"];     NSData* data = UIImagePNGRepresentation(img);     //ASIFormDataRequest请求是post请求，可以查看其源码     ASIFormDataRequest* request = [ASIFormDataRequest requestWithURL:url];     request.tag = 20;     request.delegate = self;     [request setPostValue:self.m_auth forKey:@"m_auth"]; //    [request setFile:@"tabbar.png" forKey:@"haoyou"];//如果有路径，上传文件     [request setData:data  withFileName:@"tmp.png" andContentType:@"image/png" forKey:@"headimage"]; //               数据                文件名,随便起                 文件类型            设置key     [request startAsynchronous]; }

6.实现协议

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- (void)requestFailed:(ASIHTTPRequest *)request {     NSLog(@"请求失败"); }   - (void)requestFinished:(ASIHTTPRequest *)request {     if (request.tag == 10) {         NSDictionary * dic = [NSJSONSerialization JSONObjectWithData:request.responseData options:0 error:nil];         self.m_auth = [dic objectForKey:@"m_auth"];         NSLog(@"%@", self.m_auth);     }     if (request.tag == 20) {         NSLog(@"%@", request.responseString);     } }