网络请求封装
有很多人面试时候都被问到，你是怎么封装网络请求的昵？？
所以来聊聊，如何封装网络请求
//// HTTPTool.h// HTTPNetworking//// Created by Evan on 16/7/3.// Copyright © 2016年 Evan. All rights reserved.//
#importtypedef NS_ENUM(NSInteger, HTTPRequestType) { // 请求类型
HTTPRequestTypeGET = 0,
HTTPRequestTypeHEAD,
HTTPRequestTypePOST,
HTTPRequestTypePUT,
HTTPRequestTypePATCH,
HTTPRequestTypeDELETE,
};
// 使用Block来进行回调，看后台返回的数据进行回调
typedef void(^HTTPRequestSuccess)(NSURLSessionDataTask *task, id responseObject);// 成功回调
typedef void(^HTTPRequestFailure)(NSURLSessionDataTask *task, NSError *error);// 失败回调
typedef void(^HTTPRequestAllCompletion)();// 所有回调
@class HTTPTool;
@interface HTTPTool : NSObject
+ (HTTPTool *)defaultHTTPHelper;
/**
* HTTP请求
*
* @param type 请求类型
* @param URLString 请求路径
* @param parameters 请求参数
* @param success 成功回调
* @param failure 失败回调
* @param allCompletion 完成回调
*/
- (NSURLSessionDataTask *)requestType:(HTTPRequestType)type URLString:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allcompletion:(HTTPRequestAllCompletion)allCompletion;
/**
* GET请求
*
* @param URLString 请求路径
* @param parameters 请求参数
* @param success 成功回调
* @param failure 失败回调
* @param allCompletion 完成回调
*/
- (NSURLSessionDataTask *)GET:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion;
/**
* HEAD请求
*
* @param URLString 请求路径
* @param parameters 请求参数
* @param success 成功回调
* @param failure 失败回调
* @param allCompletion 完成回调
*/
- (NSURLSessionDataTask *)HEAD:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion;
/**
* POST请求
*
* @param URLString 请求路径
* @param parameters 请求参数
* @param success 成功回调
* @param failure 失败回调
* @param allCompletion 完成回调
*/
- (NSURLSessionDataTask *)POST:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion;
/**
* PUT请求
*
* @param URLString 请求路径
* @param parameters 请求参数
* @param success 成功回调
* @param failure 失败回调
* @param allCompletion 完成回调
*/
- (NSURLSessionDataTask *)PUT:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion;
/**
* PATCH请求
*
* @param URLString 请求路径
* @param parameters 请求参数
* @param success 成功回调
* @param failure 失败回调
* @param allCompletion 完成回调
*/
- (NSURLSessionDataTask *)PATCH:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion;
/**
* DELETE请求
*
* @param URLString 请求路径
* @param parameters 请求参数
* @param success 成功回调
* @param failure 失败回调
* @param allCompletion 完成回调
*/
- (NSURLSessionDataTask *)DELETE:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion;
@end
实现网络请求方法
//
// HTTPTool.m
// HTTPNetworking
//
// Created by Evan on 16/7/3.
// Copyright © 2016年 Evan. All rights reserved.
//
#import "HTTPTool.h"
#import "AFNetworking.h"
@interface HTTPTool ()
@property (nonatomic, strong) AFHTTPSessionManager *manager;
@end
@implementation HTTPTool
- (instancetype)init
{
self = [super init];
if (self)
{
self.manager = [AFHTTPSessionManager manager];
self.manager.requestSerializer.timeoutInterval = 10;
self.manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects: @"text/plain", @"application/json", @"text/json", @"text/javascript", @"text/html", @"image/png", nil];
self.manager.responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments];
}
return self;
}
+ (HTTPTool *)defaultHTTPHelper;// 创建一个单例来管理
{
static HTTPTool *instances = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
instances = [[self alloc] init];
});
return instances;
}
- (NSURLSessionDataTask *)requestType:(HTTPRequestType)type URLString:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allcompletion:(HTTPRequestAllCompletion)allCompletion
{
switch (type) {// 判断是什么类型的网络请求，然后做出以下操作
case HTTPRequestTypeGET:
return [self GET:URLString parameters:parameters success:success failure:failure allCompletion:allCompletion];
case HTTPRequestTypeHEAD:
return [self HEAD:URLString parameters:parameters success:success failure:failure allCompletion:allCompletion];
case HTTPRequestTypePOST:
return [self POST:URLString parameters:parameters success:success failure:failure allCompletion:allCompletion];
case HTTPRequestTypePUT:
return [self PUT:URLString parameters:parameters success:success failure:failure allCompletion:allCompletion];
case HTTPRequestTypePATCH:
return [self PATCH:URLString parameters:parameters success:success failure:failure allCompletion:allCompletion];
case HTTPRequestTypeDELETE:
return [self DELETE:URLString parameters:parameters success:success failure:failure allCompletion:allCompletion];
default:
return nil;
break;
}
}
- (NSURLSessionDataTask *)GET:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion
{
return [self.manager GET:URLString parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) {
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
!success?:success(task,responseObject);// 这里使用三目运算来输出结果
!allCompletion?:allCompletion();
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
!failure?:failure(task,error);
!allCompletion?:allCompletion();
}];
}
- (NSURLSessionDataTask *)POST:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion
{
return [self.manager POST:URLString parameters:parameters progress:^(NSProgress * _Nonnull downloadProgress) {
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
!success?:success(task,responseObject);
!allCompletion?:allCompletion();
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
!failure?:failure(task,error);
!allCompletion?:allCompletion();
}];
}
- (NSURLSessionDataTask *)PATCH:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion
{
return [self.manager PATCH:URLString parameters:parameters success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
!success?:success(task,responseObject);
!allCompletion?:allCompletion();
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
!failure?:failure(task,error);
!allCompletion?:allCompletion();
}];
}
- (NSURLSessionDataTask *)HEAD:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion
{
return [self.manager HEAD:URLString parameters:parameters success:^(NSURLSessionDataTask * _Nonnull task) {
!success?:success(task,nil);
!allCompletion?:allCompletion();
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
!failure?:failure(task,error);
!allCompletion?:allCompletion();
}];
}
- (NSURLSessionDataTask *)PUT:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion
{
return [self.manager PUT:URLString parameters:parameters success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
!success?:success(task,nil);
!allCompletion?:allCompletion();
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
!failure?:failure(task,error);
!allCompletion?:allCompletion();
}];
}
- (NSURLSessionDataTask *)DELETE:(NSString *)URLString parameters:(NSDictionary *)parameters success:(HTTPRequestSuccess)success failure:(HTTPRequestFailure)failure allCompletion:(HTTPRequestAllCompletion)allCompletion
{
return [self.manager DELETE:URLString parameters:parameters success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
!success?:success(task,nil);
!allCompletion?:allCompletion();
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
!failure?:failure(task,error);
!allCompletion?:allCompletion();
}];
}
@end
Demo:https://github.com/EvanYeShao/HTTPNetworking-
