前言
日常开发中笔者对于网络请求的处理，一般是对AFNetworking封装一个基类方法，然后在网络请求类中调用该基类方法，这种处理方法即为集约型。
而YTKNetwork则是将每个网络请求抽象成一个对象，每个对象都可以单独的管理，称为离散型。
基类封装
在基类中我们可以全局设置超时时间、消息请求头等基础信息。
//WJBaseRequest.h
#import
NS_ASSUME_NONNULL_BEGIN
@interface WJBaseRequest : YTKRequest
@end
NS_ASSUME_NONNULL_END
#import "WJBaseRequest.h"
@implementation WJBaseRequest
- (YTKRequestSerializerType)requestSerializerType
{
return YTKRequestSerializerTypeJSON;
}
- (YTKResponseSerializerType)responseSerializerType
{
return YTKResponseSerializerTypeHTTP;
}
- (NSDictionary *)requestHeaderFieldValueDictionary
{
NSMutableDictionary *headerDic = [NSMutableDictionary dictionaryWithCapacity:0];
if (self.requestMethod == YTKRequestMethodGET) {
NSString *usString= [WJGlobalMethod getUserAgentString];
NSString *token = [WJUserInfoManager getWJLoginToken];
token = token == nil ?@"":token;
NSString *userid = [WJUserInfoManager getWJLoginUserId];
userid = userid == nil ?@"" :userid;
if([token length])
{
[headerDic setValue:token forKey:@"X-API-TOKEN"];
}
if([userid length])
{
[headerDic setValue:userid forKey:@"X-API-USERID"];
}
[headerDic setValue:usString forKey:@"User-Agent"];
NSString * userGa = [WJGlobalMethod getUserAgentString];
[headerDic setValue:userGa forKey:@"X-API-UA"];
} else if (self.requestMethod == YTKRequestMethodPOST) {
[headerDic setValue:@"application/x-www-form-urlencoded" forKey:@"Content-Type"];
NSString *usString= [WJGlobalMethod getUserAgentString];
[headerDic setValue:usString forKey:@"User-Agent"];
NSString * userGa = [WJGlobalMethod getUserAgentString];
[headerDic setValue:userGa forKey:@"X-API-UA"];
NSString *token = [WJUserInfoManager getWJLoginToken];
token = token == nil ?@"":token;
NSString *userid = [WJUserInfoManager getWJLoginUserId];
userid = userid == nil ?@"" :userid;
if([token length])
{
[headerDic setValue:token forKey:@"X-API-TOKEN"];
}
if([userid length])
{
[headerDic setValue:userid forKey:@"X-API-USERID"];
}
[headerDic setValue:usString forKey:@"User-Agent"];
}
return headerDic;
}
//请求超时时间
- (NSTimeInterval)requestTimeoutInterval
{
return 60;
}
- (void)requestFailedPreprocessor
{
[super requestFailedPreprocessor];
//可以在此方法内处理token失效的情况，所有http请求统一走此方法，即会统一调用
NSError * error = self.error;
if ([error.domain isEqualToString:AFURLResponseSerializationErrorDomain])
{
//AFNetworking处理过的错误
NSLog(@"AFURLResponseSerializationErrorDomain");
}else if ([error.domain isEqualToString:YTKRequestValidationErrorDomain])
{
//猿题库处理过的错误
NSLog(@"YTKRequestValidationErrorDomain");
}else{
//系统级别的domain错误，无网络等[NSURLErrorDomain]
//根据error的code去定义显示的信息，保证显示的内容可以便捷的控制
NSLog(@"RequestValidationErrorDomain");
}
]}
@end
创建网络请求
创建网络请求对象
这里需要设置请求域名、参数等
#import "WJBaseRequest.h"
NS_ASSUME_NONNULL_BEGIN
@interface WJGetInfoApi : WJBaseRequest
- (id)initWithUserId:(NSString *)userid;
@end
NS_ASSUME_NONNULL_END
#import "WJGetInfoApi.h"
#import "WJLocationManager.h"
@implementation WJGetInfoApi{
NSString *_userid;
}
- (id)initWithUserId:(NSString *)userid
{
self = [super init];
if (self) {
_userid = userid;
}
return self;
}
- (NSString *)requestUrl {
// 这里可以设置全局域名，如果设置了全局域名的话，就只需要写后缀如，return "/user";
return "http://www. example.com/user/getinfo";
}
- (YTKRequestMethod)requestMethod {
return YTKRequestMethodGET;
}
- (id)requestArgument {
NSString *userid = _userid;
userid = userid == nil ?@"":userid;
return @{
@"userid":_userid,
};
}
@end
网络请求接口调用
WJGetInfoApi *api = [[WJGetInfoApi alloc] initWithUserId:userId];
[api startWithCompletionBlockWithSuccess:^(YTKBaseRequest *request){
// 数据解析
NSDictionary *requestDict = [NSJSONSerialization JSONObjectWithData:request.responseObject options:NSJSONReadingMutableContainers error:nil];
} failure:^(YTKBaseRequest *request){
// 错误处理
}];
文件上传
不知道是不是我的使用方法不对，当用YTKNetwork上传图片的时候，YTKNetwork好像没有特定的方法或者类来处理，笔者这里是自定义了消息体。上传图片时需要设置请求头的“Content-Type”为@"multipart/form-data" ，并将图片data添加到HTTP body中。
// WJUploadImageApi.h
#import "WJBaseRequest.h"
NS_ASSUME_NONNULL_BEGIN
@interface WJUploadImageApi : WJBaseRequest
- (id)initWithImage:(UIImage *)image;
@end
NS_ASSUME_NONNULL_END
#import "WJUploadImageApi.h"
@implementation WJUploadImageApi{
UIImage *_image;
}
- (id)initWithImage:(UIImage *)image {
self = [super init];
if (self) {
_image = image;
}
return self;
}
- (YTKRequestMethod)requestMethod {
return YTKRequestMethodPOST;
}
- (NSString *)requestUrl {
return "http://www. example.com/user/upload";
}
- (NSDictionary *)requestHeaderFieldValueDictionary
{
NSMutableDictionary *headerDic = [NSMutableDictionary dictionaryWithCapacity:0];
// 上传图片时需要设置请求头的“Content-Type”为@"multipart/form-data"
[headerDic setValue:@"multipart/form-data" forKey:@"Content-Type"];
NSString *usString= [WJGlobalMethod getUserAgentString];
[headerDic setValue:usString forKey:@"User-Agent"];
NSString * userGa = [WJGlobalMethod getUserAgentString];
[headerDic setValue:userGa forKey:@"X-API-UA"];
NSString *token = [WJUserInfoManager getWJLoginToken];
token = token == nil ?@"":token;
NSString *userid = [WJUserInfoManager getWJLoginUserId];
userid = userid == nil ?@"" :userid;
if([token length])
{
[headerDic setValue:token forKey:@"X-API-TOKEN"];
}
if([userid length])
{
[headerDic setValue:userid forKey:@"X-API-USERID"];
}
[headerDic setValue:usString forKey:@"User-Agent"];
return headerDic;
}
// 设置HTTP body
- (AFConstructingBlock)constructingBodyBlock {
return ^(id formData) {
NSData *data = UIImageJPEGRepresentation(_image, 0.9);
NSString *name = @"image";
NSString *formKey = @"attachment";
NSString *type = @"image/jpeg";
[formData appendPartWithFileData:data name:formKey fileName:name mimeType:type];
};
}
- (id)jsonValidator {
return @{ @"url": [NSString class] };
}
@end