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首先下载AFNetworking 然后在需要使用的类中,导入如下2个头文件:
#import "AFNetworking.h"//主要用于网络请求方法 #import "UIKit+AFNetworking.h"//里面有异步加载图片的方法
GET请求网络数据方式:
-(void)obtainData { // 启动系统风火轮 [UIApplication sharedApplication].networkActivityIndicatorVisible = YES; //前面写服务器给的域名,后面拼接上需要提交的参数,假如参数是key=1 NSString *domainStr = @"http://192.168.1.69/xffcol/index.php/Api/key/1/"; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; manager.responseSerializer = [AFHTTPResponseSerializer serializer]; //以get的形式提交,只需要将上面的请求地址给GET做参数就可以 [manager GET:domainStr parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { // 隐藏系统风火轮 [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; //json解析 NSDictionary *resultDic = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableLeaves error:nil]; NSLog(@"---获取到的json格式的字典--%@",resultDic); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { // 解析失败隐藏系统风火轮(可以打印error.userInfo查看错误信息) [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; }]; }
POST请求网络数据方式:
-(void)obtainData { // 启动系统风火轮 [UIApplication sharedApplication].networkActivityIndicatorVisible = YES; //服务器给的域名 NSString *domainStr = @"http://192.168.1.69/xffcol/index.php/Api/"; //假如需要提交给服务器的参数是key=1,class_id=100 //创建一个可变字典 NSMutableDictionary *parametersDic = [NSMutableDictionary dictionary]; //往字典里面添加需要提交的参数 [parametersDic setObject:@"1" forKey:@"key"]; [parametersDic setObject:@"100" forKey:@"class_id"]; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; manager.responseSerializer = [AFHTTPResponseSerializer serializer]; //以post的形式提交,POST的参数就是上面的域名,parameters的参数是一个字典类型,将上面的字典作为它的参数 [manager POST:domainStr parameters:parametersDic success:^(AFHTTPRequestOperation *operation, id responseObject) { // 隐藏系统风火轮 [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; //json解析 NSDictionary *resultDic = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableLeaves error:nil]; NSLog(@"---获取到的json格式的字典--%@",resultDic); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { // 解析失败隐藏系统风火轮(可以打印error.userInfo查看错误信息) [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; }]; }
实现上传多张图片:
-(void)uploadPictures{ //域名 NSString *domainStr = @"http://192.168.1.69/xffcol/index.php/Api/"; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; manager.responseSerializer = [AFHTTPResponseSerializer serializer]; //如果还需要上传其他的参数,参考上面的POST请求,创建一个可变字典,存入需要提交的参数内容,作为parameters的参数提交 [manager POST:domainStr parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { //_imageArray就是图片数组,我的_imageArray里面存的都是图片的data,下面可以直接取出来使用,如果存的是image,将image转换data的方法如下:NSData *imageData = UIImageJPEGRepresentation(image, 0.7); if (_imageArray.count > 0 ){ for(int i = 0;i < _imageArray.count;i ++){ NSData *data=_imageArray[i]; //上传的参数名 NSString *name = [NSString stringWithFormat:@"%d",i]; //上传的filename NSString *fileName = [NSString stringWithFormat:@"%@.jpg",name]; [formData appendPartWithFileData:data name:name fileName:fileName mimeType:@"image/jpeg"]; } } }success:^(AFHTTPRequestOperation *operation, id responseObject) { //关闭系统风火轮 [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; //json解析 NSDictionary * resultDic = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableLeaves error:nil]; NSLog(@"---resultDic--%@",resultDic); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { // 解析失败 [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; }]; }
设置网络图片的方法:
[leftView setImageWithURL:[NSURL URLWithString:@"http://pic25.nipic.com/20121205/5955207_182136452000__2.jpg"] placeholderImage:@"这里是网络图片还没加载出来的时候,显示的默认图片"];
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
[manager GET:URL parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) {
}
success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSLog(@"这里打印请求成功要做的事");
}
failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"%@",error); //这里打印错误信息
}];
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
NSMutableDictionary *parameters = @{@"":@"",@"":@""};
[manager POST:URL parameters:parameters progress:^(NSProgress * _Nonnull uploadProgress) {
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
}];
暂时用的比较多的就这两个,用到其他的 再来更新!!
/**
* AFN3.0 下载
*/
- (void)downLoad{
//1.创建管理者对象
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
//2.确定请求的URL地址
NSURL *url = [NSURL URLWithString:@""];
//3.创建请求对象
NSURLRequest *request = [NSURLRequest requestWithURL:url];
//下载任务
NSURLSessionDownloadTask *task = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {
//打印下下载进度
WKNSLog(@"%lf",1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount);
} destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {
//下载地址
WKNSLog(@"默认下载地址:%@",targetPath);
//设置下载路径,通过沙盒获取缓存地址,最后返回NSURL对象
NSString *filePath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)lastObject];
return [NSURL URLWithString:filePath];
} completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {
//下载完成调用的方法
WKNSLog(@"下载完成:");
WKNSLog(@"%@--%@",response,filePath);
}];
//开始启动任务
[task resume];
}
/**
* AFN 3.0 上传
* 有两种方式
* upLoad1 和 upLoad2
*/
//第一种方法是通过工程中的文件进行上传
- (void)upLoad1{
//1。创建管理者对象
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
//2.上传文件
NSDictionary *dict = @{@"username":@"1234"};
NSString *urlString = @"22222";
[manager POST:urlString parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
//上传文件参数
UIImage *iamge = [UIImage imageNamed:@"123.png"];
NSData *data = UIImagePNGRepresentation(iamge);
//这个就是参数
[formData appendPartWithFileData:data name:@"file" fileName:@"123.png" mimeType:@"image/png"];
} progress:^(NSProgress * _Nonnull uploadProgress) {
//打印下上传进度
WKNSLog(@"%lf",1.0 *uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
//请求成功
WKNSLog(@"请求成功:%@",responseObject);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
//请求失败
WKNSLog(@"请求失败:%@",error);
}];
}
//第二种是通过URL来获取路径,进入沙盒或者系统相册等等
- (void)upLoda2{
//1.创建管理者对象
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
//2.上传文件
NSDictionary *dict = @{@"username":@"1234"};
NSString *urlString = @"22222";
[manager POST:urlString parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
[formData appendPartWithFileURL:[NSURL fileURLWithPath:@"文件地址"] name:@"file" fileName:@"1234.png" mimeType:@"application/octet-stream" error:nil];
} progress:^(NSProgress * _Nonnull uploadProgress) {
//打印下上传进度
WKNSLog(@"%lf",1.0 *uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
//请求成功
WKNSLog(@"请求成功:%@",responseObject);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
//请求失败
WKNSLog(@"请求失败:%@",error);
}];
}
- (void)AFNetworkStatus{
//1.创建网络监测者
AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager];
/*枚举里面四个状态 分别对应 未知 无网络 数据 WiFi
typedef NS_ENUM(NSInteger, AFNetworkReachabilityStatus) {
AFNetworkReachabilityStatusUnknown = -1, 未知
AFNetworkReachabilityStatusNotReachable = 0, 无网络
AFNetworkReachabilityStatusReachableViaWWAN = 1, 蜂窝数据网络
AFNetworkReachabilityStatusReachableViaWiFi = 2, WiFi
};
*/
[manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
//这里是监测到网络改变的block 可以写成switch方便
//在里面可以随便写事件
switch (status) {
case AFNetworkReachabilityStatusUnknown:
WKNSLog(@"未知网络状态");
break;
case AFNetworkReachabilityStatusNotReachable:
WKNSLog(@"无网络");
break;
case AFNetworkReachabilityStatusReachableViaWWAN:
WKNSLog(@"蜂窝数据网");
break;
case AFNetworkReachabilityStatusReachableViaWiFi:
WKNSLog(@"WiFi网络");
break;
default:
break;
}
}] ;
}
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原文地址:http://www.cnblogs.com/zhun/p/5535376.html