IOS开发之AFNetworking开源库的使用
IOS开发之AFNetworking开源库的使用
1.简介
常见的处理网络请求方式
(1)NSURLConnection/NSURLSession
(2)ASIHttpRequest 早期项目中比较常见, 由于作者不更新了
(3)AFNetworking 推荐使用, 项目中使用
(4)MKNetworkKit 试试
2.配置和使用
2.1 配置
库文件拖入工程中, 包含头文件
#import "AFNetworking.h"
2.2 使用
2.2.1.GET请求（html，json，xml）
-(void)testGetRequest{ NSString *urlstring = @"http://www.baidu.com"; urlstring = @"http://m.weather.com.cn/data/101010100.html"; urlstring = @"http://mp.manzuo.com/china/beijing/home_2.xml"; //定义AFNetworking管理 AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; //注意：默认数据是JSON，content-type也是JSON，responseObject是解析字典和数组，不是产生错误Code=-1016 //解决:设置解析器为HTTP形式，下载回来是NSData manager.responseSerializer = [AFCompoundResponseSerializer serializer]; [manager GET:urlstring parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { // responseObject重要参数，包含下载数据 // NSLog(@"o = %@",responseObject); NSString *str = [[NSString alloc]initWithData:responseObject encoding:NSUTF8StringEncoding]; NSLog(@"str = %@",str); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"error = %@",error); }]; }
2.2.2.POST请求
-(void)testPostRequest{ //POST接口: //参数1:@"user" : @"quiet" //参数2:@"password" : @"123" NSString *urlString = @"http://quiet.local/testdir/login.php"; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; manager.responseSerializer = [AFCompoundResponseSerializer serializer]; //参数1:传入地址 //参数2:传入URL请求的参数，格式传入字典 [manager POST:urlString parameters:@{@"user": @"quiet",@"password" : @"123"} success:^(AFHTTPRequestOperation *operation, id responseObject) { NSString *str = [[NSString alloc]initWithData:responseObject encoding:NSUTF8StringEncoding]; NSLog(@"str = %@",str); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"error = %@",error); }]; }
2.2.3.上传文件（上传图片）
-(void)testUploadFile{ //POST上传的接口 NSString *urlString = @"http://quiet.local/uploadtest/pk.php"; //参数名:image : 参数值是图片 AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; manager.responseSerializer = [AFCompoundResponseSerializer serializer]; [manager POST:urlString parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { NSString *path = [[NSBundle mainBundle]pathForResource:@"daji.jpg" ofType:nil]; [formData appendPartWithFileURL:[NSURL URLWithString:path] name:@"image" fileName:@"666.jpg" mimeType:@"image/jpeg" error:nil]; } success:^(AFHTTPRequestOperation *operation, id responseObject) { NSString *str = [[NSString alloc]initWithData:responseObject encoding:NSUTF8StringEncoding]; NSLog(@"str = %@",str); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"error = %@",error); }]; [manager POST:urlString parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { //实现:上传的数据附加到请求体中 //fileName:上传后的文件名 //mimeType:需要上网搜索mime，把相应的格式复制过来 NSString *path = [[NSBundle mainBundle]pathForResource:@"daji.jpg" ofType:nil]; [formData appendPartWithFileURL:[NSURL fileURLWithPath:path] name:@"image" fileName:@"666.jpg" mimeType:@"image/jpeg" error:nil]; } success:^(AFHTTPRequestOperation *operation, id responseObject) { NSString *str = [[NSString alloc]initWithData:responseObject encoding:NSUTF8StringEncoding]; NSLog(@"str = %@",str); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"error = %@",error); }]; }
2.2.4.下载文件
-(void)testDownloadFile{ NSString *urlString = @"http://imgcache.qq.com/club/item/avatar/zip/7/i87/all.zip"; //创建会话管理对象（通过默认配置） AFURLSessionManager *manager = [[AFURLSessionManager alloc]initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; NSURLSessionDownloadTask *task = [manager downloadTaskWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlString]] progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) { //返回文件保存的位置 NSString *path = [NSString stringWithFormat:@"%@/Documents/all.zip",NSHomeDirectory()]; NSLog(@"%@",NSHomeDirectory()); return [NSURL fileURLWithPath:path]; } completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) { NSLog(@"下载完成"); }]; //启动任务 [task resume]; }
2.2.5.监控网络状态
-(void)testMonitorNetworkStatus{ AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc]initWithBaseURL:[NSURL URLWithString:@"www.baidu.com"]]; [manager.reachabilityManager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) { NSDictionary *dict = @{ @(AFNetworkReachabilityStatusUnknown): @"未知", @(AFNetworkReachabilityStatusNotReachable): @"不可达", @(AFNetworkReachabilityStatusReachableViaWWAN): @"GPRS", @(AFNetworkReachabilityStatusReachableViaWiFi): @"Wifi", }; NSLog(@"状态为 %@",dict[@(status)]); }]; //开启状态监视 [manager.reachabilityManager startMonitoring]; }
2.2.6.图片异步功能（替代SDWebImage）
导入头文件
#import "UIKit+AFNetworking.h"
- (void)setImageWithURL:(NSURL *)url;
2.2.7.有一些特殊的请求头
BAIDU_WISE_UID=wapp_1428385381699_466;
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
[manager.requestSerializer setValue:@"wapp_1428385381699_466" forHTTPHeaderField:@"BAIDU_WISE_UID"];