我用一个单例类将一些常用的网络请求进行了二次封装，主要包括post请求 get请求 图片文件上传下载 视频的断点续传等功能。
首先大家先去github上下载AFN，将文件夹内的AFNetworking文件夹拖入工程中，然后创建一个图片文件参数类代码如下：
#import <Foundation/Foundation.h> @interface UploadParam : NSObject
/**
* 上传文件的二进制数据
*/
@property (nonatomic, strong) NSData *data;
/**
* 上传的参数名称
*/
@property (nonatomic, copy) NSString *name;
/**
* 上传到服务器的文件名称
*/
@property (nonatomic, copy) NSString *fileName; /**
* 上传文件的类型
*/
@property (nonatomic, copy) NSString *mimeType; @end
#import "UploadParam.h" @implementation UploadParam @end
然后创建网络工具AFNManager具体代码如下(此处我提供了代理和block两种方式进行传值供大家选择)：
#import <Foundation/Foundation.h>
#import "AFNManagerDelegate.h"
#import "UploadParam.h"
@interface AFNManager : NSObject @property (nonatomic, weak) id<AFNManagerDelegate> delegate; /**
* AFNManager单利
*/
+(AFNManager *)sharedManager;
#pragma mark --代理的方式传值
/**
* get
*/
- (void)GET:(NSString *)URLString parameters:(id)parameters; /**
* post
*/
- (void)Post:(NSString *)URLString parameters:(id)parameters; /**
* upload
*/
- (void)Upload:(NSString *)URLString parameters:(id)parameters uploadParam:(UploadParam *)uploadParam; #pragma mark --block的形式传值
/**
* get请求
*/
- (void)GET:(NSString *)URLString parameters:(id)parameters succeed:(void (^)(id data))succeed failure:(void (^)(NSError *error))failure;
/**
* post请求
*/
- (void)Post:(NSString *)URLString parameters:(id)parameters succeed:(void (^)(id data))succeed failure:(void (^)(NSError *error))failure;
/**
* upload
*/
- (void)Upload:(NSString *)URLString parameters:(id)parameters uploadParam:(UploadParam *)uploadParam succeed:(void (^)(id data))succeed failure:(void (^)(NSError *error))failure; #pragma mark --断点续传
/**
* 开始下载 断点续传
*
* @param URLString 请求接口
*/
- (void)downloadStartWithUrl:(NSString *)URLString fileName:(NSString *)fileName;
/**
* 开始上传 断点续传
*
* @param URLString 请求接口
*/
- (void)uploadStartWithUrl:(NSString *)URLString fileData:(NSData *)fileData;
/**
* 暂停操作 断点续传
*/
- (void)operationPause;
/**
* 继续操作 断点续传
*/
- (void)operationResume;
/**
* 取消操作
*/
- (void)operationCancel;
@end
#import "AFNManager.h"
#import "AFNetworking.h"
@interface AFNManager()
{
AFHTTPRequestOperation *operation; //创建请求管理（用于上传和下载）
}
@end
static AFNManager *manager = nil;
@implementation AFNManager
+(AFNManager *)sharedManager
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
if (manager == nil) {
manager = [[self alloc] init];
}
});
return manager;
} +(instancetype)allocWithZone:(struct _NSZone *)zone
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
if (manager == nil) { manager = [super allocWithZone:zone];
}
});
return manager;
}
- (void)GET:(NSString *)URLString parameters:(id)parameters
{
// 创建请求管理者
AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager]; [mgr GET:URLString parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) { if (self.delegate && [self.delegate respondsToSelector:@selector(AFNManagerDidSuccess:)]) { [self.delegate AFNManagerDidSuccess:responseObject];
} } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
if (self.delegate && [self.delegate respondsToSelector:@selector(AFNManagerDidFaild:)]) { [self.delegate AFNManagerDidFaild:error];
}
}];
} - (void)Post:(NSString *)URLString parameters:(id)parameters
{
// 创建请求管理者
AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager]; [mgr POST:URLString parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) { if (self.delegate && [self.delegate respondsToSelector:@selector(AFNManagerDidSuccess:)]) { [self.delegate AFNManagerDidSuccess:responseObject];
} } failure:^(AFHTTPRequestOperation *operation, NSError *error) { if (self.delegate && [self.delegate respondsToSelector:@selector(AFNManagerDidFaild:)]) { [self.delegate AFNManagerDidFaild:error];
}
}];
} - (void)Upload:(NSString *)URLString parameters:(id)parameters uploadParam:(UploadParam *)uploadParam
{
// 创建请求管理者
AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager]; [mgr POST:URLString parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { // 上传的文件全部拼接到formData /**
* FileData:要上传的文件的二进制数据
* name:上传参数名称
* fileName：上传到服务器的文件名称
* mimeType：文件类型
*/
[formData appendPartWithFileData:uploadParam.data name:uploadParam.name fileName:uploadParam.fileName mimeType:uploadParam.mimeType]; } success:^(AFHTTPRequestOperation *operation, id responseObject) {
if (self.delegate && [self.delegate respondsToSelector:@selector(AFNManagerDidSuccess:)]) { [self.delegate AFNManagerDidSuccess:responseObject];
} } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
if (self.delegate && [self.delegate respondsToSelector:@selector(AFNManagerDidFaild:)]) { [self.delegate AFNManagerDidFaild:error];
}
}]; }
-(void)GET:(NSString *)URLString parameters:(id)parameters succeed:(void (^)(id))succeed failure:(void (^)(NSError *))failure
{
// 创建请求管理者
AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager]; [mgr GET:URLString parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
if (responseObject == nil) {
return ;
}
succeed(responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { failure(error);
}];
}
-(void)Post:(NSString *)URLString parameters:(id)parameters succeed:(void (^)(id))succeed failure:(void (^)(NSError *))failure
{
// 创建请求管理者
AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager]; [mgr POST:URLString parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
if (responseObject == nil) {
return ;
}
succeed(responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) { failure(error);
}]; }
-(void)Upload:(NSString *)URLString parameters:(id)parameters uploadParam:(UploadParam *)uploadParam succeed:(void (^)(id))succeed failure:(void (^)(NSError *))failure
{
// 创建请求管理者
AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager]; [mgr POST:URLString parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { // 上传的文件全部拼接到formData /**
* FileData:要上传的文件的二进制数据
* name:上传参数名称
* fileName：上传到服务器的文件名称
* mimeType：文件类型
*/
[formData appendPartWithFileData:uploadParam.data name:uploadParam.name fileName:uploadParam.fileName mimeType:uploadParam.mimeType]; } success:^(AFHTTPRequestOperation *operation, id responseObject) {
if (self.delegate && [self.delegate respondsToSelector:@selector(AFNManagerDidSuccess:)]) { succeed(responseObject);
} } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
if (self.delegate && [self.delegate respondsToSelector:@selector(AFNManagerDidFaild:)]) { failure(error);
}
}]; }
-(void)downloadStartWithUrl:(NSString *)URLString fileName:(NSString *)fileName
{
NSString *filePath = [NSString stringWithFormat:@"%@/Documents/%@",NSHomeDirectory(), fileName]; operation = [[AFHTTPRequestOperation alloc] initWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:URLString]]]; operation.outputStream = [NSOutputStream outputStreamToFileAtPath:filePath append:NO];
// 可以在此设置进度条 // [operation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
//
// }];
__weak typeof(self) weakself = self;
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
// 请求成功做出提示
if (weakself.delegate && [weakself.delegate respondsToSelector:@selector(AFNManagerDidSuccess:)]) { [weakself.delegate AFNManagerDidSuccess:responseObject];
} } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
// 请求失败做出提示
if (weakself.delegate && [weakself.delegate respondsToSelector:@selector(AFNManagerDidFaild:)]) { [weakself.delegate AFNManagerDidFaild:error];
}
}]; [operation start];
}
- (void)uploadStartWithUrl:(NSString *)URLString fileData:(NSData *)fileData
{
operation = [[AFHTTPRequestOperation alloc] initWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:URLString]]]; operation.inputStream = [[NSInputStream alloc] initWithData:fileData]; // 设置进度条
// [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
//
// }];
__weak typeof(self) weakself = self;
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
// 请求成功做出提示
if (weakself.delegate && [weakself.delegate respondsToSelector:@selector(AFNManagerDidSuccess:)]) { [weakself.delegate AFNManagerDidSuccess:responseObject];
} } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
// 请求失败做出提示
if (weakself.delegate && [weakself.delegate respondsToSelector:@selector(AFNManagerDidFaild:)]) { [weakself.delegate AFNManagerDidFaild:error];
}
}]; [operation start];
}
- (void)operationPause
{
[operation pause];
}
- (void)operationResume
{
[operation resume];
}
- (void)operationCancel
{
[operation cancel];
} //网络监听（用于检测网络是否可以链接。此方法最好放于AppDelegate中，可以使程序打开便开始检测网络）
- (void)reachabilityManager
{
AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];
//打开网络监听
[mgr.reachabilityManager startMonitoring]; //监听网络变化
[mgr.reachabilityManager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
switch (status) { //当网络不可用（无网络或请求延时）
case AFNetworkReachabilityStatusNotReachable:
break; //当为手机WiFi时
case AFNetworkReachabilityStatusReachableViaWiFi:
break; //当为手机蜂窝数据网
case AFNetworkReachabilityStatusReachableViaWWAN:
break; //其它情况
default:
break;
}
}]; // //停止网络监听（若需要一直检测网络状态，可以不停止，使其一直运行）
// [mgr.reachabilityManager stopMonitoring];
} @end
网络工具代理协议代码如下：
#import <Foundation/Foundation.h>
@class AFNManager; @protocol AFNManagerDelegate <NSObject> @optional
/**
* 发送请求成功
*
* @param manager AFNManager
*/
-(void)AFNManagerDidSuccess:(id)data;
/**
* 发送请求失败
*
* @param manager AFNManager
*/
-(void)AFNManagerDidFaild:(NSError *)error;
@end
有很多不足之处请大家多多指正，可以评论或点关注进行技术交流。后续也会写一些自己平时学习的点点滴滴。