基于Target-Action 简化接口网络请求

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本文介绍如何使用HandleM类管理模块间的接口调用，通过自定义请求方法处理GET和POST请求，以及利用target-action转发和AFNetworking封装网络请求。实例展示了登录模块的接口实现和网络请求的回调处理。

一、接口URL

自定义一个.H文件

二、各模块接口调用

定义一个handleM类，该类增加一个请求方法

- (void)__requestWith:(NSString *)url dic:(NSMutableDictionary *)dic sel:(SEL)sel isPost:(BOOL)isPost{
    
    self.sel = sel;
    
    NSMutableDictionary *dicp = @{}.mutableCopy;
    
    NSString *baseUrl =  K_Base_Url;
    
    dicp[URLS] = [NSString stringWithFormat:@"%@%@",baseUrl,url];
    
    dicp[PRAMAS] = dic == nil ? @{}.mutableCopy : dic;
    
    [self routeTargetName:@"Data" actionName:isPost ? @"postWithDic:": @"getWithDic:" param:dicp];
    
}

-(void)__requestPicWith:(NSString *)url dic:(NSMutableDictionary *)dic sel:(SEL)sel isPost:(BOOL)isPost{
    
    self.sel = sel;
    
    NSMutableDictionary *dicp = @{}.mutableCopy;
    
    NSString *baseUrl =  K_Base_Url;
    
    dicp[URLS] = [NSString stringWithFormat:@"%@%@",baseUrl,url];
    
    dicp[PRAMAS] = dic == nil ? @{}.mutableCopy : dic;
    
    [self routeTargetName:@"Data" actionName:@"updatePicWithDic:" param:dicp];
    
}

根据模块对该类新建分类例如登录模块

@interface HandleM (Login)

新建登录方法

#import "HandleM.h"

NS_ASSUME_NONNULL_BEGIN

@interface HandleM (Login)

- (void)loginAction:(NSMutableDictionary *)dic;

实现该方法

#import "HandleM+Login.h"

@implementation HandleM (Login)

- (void)loginAction:(NSMutableDictionary *)dic{
    [self __requestWith:loginMPath dic:dic sel:@selector(loginAction:) isPost:YES];
}

三、target-action转发

#import <Foundation/Foundation.h>
#import "RequestProtocol.h"

NS_ASSUME_NONNULL_BEGIN

@interface NSObject (Set)

@property (nonatomic, strong) id<RequestProtocol>reqDelegate;

- (id)routeTargetName:(NSString *)targetName actionName:(NSString *)actionName;
- (id)routeTargetName:(NSString *)targetName actionName:(NSString *)actionName param:(id)param;;
- (id)routeTargetName:(NSString *)targetName actionName:(NSString *)actionName backParam:(void(^)(NSDictionary *))completion;
- (NSArray *)gettProperities;
 

@end

NS_ASSUME_NONNULL_END

实现方法

//
//  NSObject+Set.m
//  RongYiQiangDan
//
//  Created by maochengfang on 2020/11/16.
//

#import "NSObject+Set.h"

@implementation NSObject (Set)

- (id)routeTargetName:(NSString *)targetName actionName:(NSString *)actionName{
    
    return [self routeTargetName:targetName actionName:actionName param:nil];
}

- (id)routeTargetName:(NSString *)targetName actionName:(NSString *)actionName backParam:(void (^)(NSDictionary * _Nonnull))completion{
    return [self routeTargetName:targetName actionName:actionName param:completion];
}

- (id)routeTargetName:(NSString *)targetName actionName:(NSString *)actionName param:(id)param{
    
    Class targetClass = NSClassFromString(targetName);
    SEL   actionSel  = NSSelectorFromString(actionName);
    
    NSObject *targetObj = [targetClass new];
    targetObj.reqDelegate = self;
    
    if([targetObj respondsToSelector:actionSel]){
        NSMethodSignature *signature = [targetObj methodSignatureForSelector:actionSel];
        NSString *returnType = [NSString  stringWithUTF8String:signature.methodReturnType];
        
        if([returnType isEqualToString:@"@"]){
            return [targetObj performSelector:actionSel withObject:param];
        }else if([returnType isEqualToString:@"v"]||[returnType isEqualToString:@"V"]){
            
            [targetObj performSelector:actionSel withObject:param];
            return nil;
            
        }else{
            
            [targetObj performSelector:actionSel withObject:param];
            return nil;
        }
    }else{
        NSLog(@"error:%@没有%@方法", targetName, actionName);
        return nil;
    }
}

- (id<RequestProtocol>)reqDelegate{
    
    return  objc_getAssociatedObject(self, @selector(reqDelegate));
}

- (void)setReqDelegate:(id<RequestProtocol>)reqDelegate{
    objc_setAssociatedObject(self, @selector(reqDelegate), reqDelegate, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

- (NSArray *)gettProperities
{
    unsigned int outCount = 0;
    objc_property_t *properties = class_copyPropertyList([self class], &outCount);
    
    NSMutableArray *arrayM = [NSMutableArray arrayWithCapacity:outCount];
    for (int i = 0; i < outCount; i++) {
        objc_property_t property = properties[i];
        const char *name = property_getName(property);
        [arrayM addObject:[NSString stringWithUTF8String:name]];
    }
    free(properties);
    
    return arrayM;
}

@end

四、网络数据请求回调协议

@protocol RequestProtocol <NSObject>

- (void)result:(id)data sel:(NSString *)sel;

- (void)faild:(id)data sel:(NSString *)sel;

五、封装AFNetWorking

定义方法

//
//  NSObject+Set.m
//  RongYiQiangDan
//
//  Created by maochengfang on 2020/11/16.
//

#import "NSObject+Set.h"

@implementation NSObject (Set)

- (id)routeTargetName:(NSString *)targetName actionName:(NSString *)actionName{
    
    return [self routeTargetName:targetName actionName:actionName param:nil];
}

- (id)routeTargetName:(NSString *)targetName actionName:(NSString *)actionName backParam:(void (^)(NSDictionary * _Nonnull))completion{
    return [self routeTargetName:targetName actionName:actionName param:completion];
}

- (id)routeTargetName:(NSString *)targetName actionName:(NSString *)actionName param:(id)param{
    
    Class targetClass = NSClassFromString(targetName);
    SEL   actionSel  = NSSelectorFromString(actionName);
    
    NSObject *targetObj = [targetClass new];
    targetObj.reqDelegate = self;
    
    if([targetObj respondsToSelector:actionSel]){
        NSMethodSignature *signature = [targetObj methodSignatureForSelector:actionSel];
        NSString *returnType = [NSString  stringWithUTF8String:signature.methodReturnType];
        
        if([returnType isEqualToString:@"@"]){
            return [targetObj performSelector:actionSel withObject:param];
        }else if([returnType isEqualToString:@"v"]||[returnType isEqualToString:@"V"]){
            
            [targetObj performSelector:actionSel withObject:param];
            return nil;
            
        }else{
            
            [targetObj performSelector:actionSel withObject:param];
            return nil;
        }
    }else{
        NSLog(@"error:%@没有%@方法", targetName, actionName);
        return nil;
    }
}

- (id<RequestProtocol>)reqDelegate{
    
    return  objc_getAssociatedObject(self, @selector(reqDelegate));
}

- (void)setReqDelegate:(id<RequestProtocol>)reqDelegate{
    objc_setAssociatedObject(self, @selector(reqDelegate), reqDelegate, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}


@end

实现GET POST 方法

- (void)__getDataWithUrl:(NSString *)url params:(NSDictionary *)params resultBlock:(void(^)(id result))block failureBlock:(void(^)( NSError * _Nonnull error))failureblock{
    
    BOOL flag = [self getProxyStatus:url];
    
    if (flag) {
        [SVProgressHUD showErrorWithStatus:@"网络异常"];
        return;
    }
    
    if (![self __judgeUrl:url]) {
        return;
    }
    
    /**
     取缓存
     */
    BOOL needCache = [params[@"cache"]boolValue];
    
    if (needCache) {
        
        id result =  [self getDataFromLocationWithPathName:url dic:params];
        
        if (result) {
            
            block(result);
        }
    }
    
    
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    manager.requestSerializer.timeoutInterval = 30;
    manager.securityPolicy.allowInvalidCertificates = YES;
    manager.responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSUTF8StringEncoding];
    [manager.responseSerializer setAcceptableContentTypes: [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript",@"text/html",@"text/css",@"text/plain", nil]];
    
    
    //无条件的信任服务器上的证书
    AFSecurityPolicy *securityPolicy =  [AFSecurityPolicy defaultPolicy];

    // 客户端是否信任非法证书
    securityPolicy.allowInvalidCertificates = NO;
    // 是否在证书域字段中验证域名
    securityPolicy.validatesDomainName = YES;
    manager.securityPolicy = securityPolicy;
  
    NSString *sessionId = [UIKitFactory  getCacheValueWithType:LoginValueSESSION];
//    NSString *sessionId = @"user:895daf4b-9ddd-4075-a384-8e52ee874aaa";
//    //[UIKitFactory  getCacheValueWithType:LoginValueSESSION];
     [manager.requestSerializer setValue:sessionId forHTTPHeaderField:@"token"];
    
    [manager.requestSerializer setValue:@"iOS" forHTTPHeaderField:@"systemVersion"];
    [manager.requestSerializer setValue:[UIDeviceHardware systemVersion] forHTTPHeaderField:@"systemName"];
    [manager.requestSerializer setValue:[UIDeviceHardware platformString] forHTTPHeaderField:@"phoneType"];
    [manager.requestSerializer setValue:[UIDeviceHardware appinfoType:1] forHTTPHeaderField:@"version"];
    [manager.requestSerializer setValue:[UIDeviceHardware appinfoType:2] forHTTPHeaderField:@"packageName"];
    [manager.requestSerializer setValue:@"App Store" forHTTPHeaderField:@"channel"];
     
     NSMutableDictionary *mDic = [NSMutableDictionary dictionaryWithDictionary:params];
     [mDic setValue:sessionId forKey:@"token"];

     params = mDic.mutableCopy;
    
    
    [manager GET:url parameters:params headers:nil progress:^(NSProgress * _Nonnull downloadProgress) {
            
        } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
            if (block) {
                
                block(responseObject);
                //插入缓存
                if (needCache) {
                    [self setDataToLocationData:responseObject pathName:url dic:params];
                    
                    
                }
            }
        } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
            if (failureblock) {
                failureblock(error);
            }
        }];
    
}

- (BOOL)getProxyStatus:(NSString *)url {
    NSDictionary *proxySettings = (__bridge NSDictionary *)CFNetworkCopySystemProxySettings();
    
    NSArray *proxies = (__bridge NSArray *)(CFNetworkCopyProxiesForURL((__bridge CFURLRef _Nonnull)([NSURL URLWithString:url]),(__bridge CFDictionaryRef _Nonnull)(proxySettings)));
    NSDictionary *settings = [proxies objectAtIndex:0];

    NSLog(@"host=%@", [settings objectForKey:(NSString *)kCFProxyHostNameKey]);
    NSLog(@"port=%@", [settings objectForKey:(NSString *)kCFProxyPortNumberKey]);
    NSLog(@"type=%@", [settings objectForKey:(NSString *)kCFProxyTypeKey]); if ([[settings objectForKey:(NSString *)kCFProxyTypeKey] isEqualToString:@"kCFProxyTypeNone"])
    { //没有设置代理
        return NO;
    } else { //设置代理了
        return YES;
    }
}

- (void)__postDataWithUrl:(NSString *)url params:(NSDictionary *)params resultBlock:(void(^)(id result))block failureBlock:(void(^)( NSError * _Nonnull error))failureblock{
    
    BOOL flag = [self getProxyStatus:url];
    
    if (flag) {
        [SVProgressHUD showErrorWithStatus:@"网络异常"];
        return;
    }
    
//    NSLog(@"flag=====%i",flag);
    
    if (![self __judgeUrl:url]) {
        return;
    }
    /**
     取缓存
     */
    BOOL needCache = [params[@"cache"]boolValue];
    if (needCache) {
        
        id result =  [self getDataFromLocationWithPathName:url dic:params];
        if (result) {
            block(result);
        }
    }
    
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    
    if (![AutoSwitchFlag shared].openAFNet ) {
        manager.requestSerializer = [AFJSONRequestSerializer serializer];
        manager.responseSerializer = [AFJSONResponseSerializer serializer];
    }
    
    

    manager.requestSerializer.timeoutInterval = 30;
    manager.securityPolicy.allowInvalidCertificates = YES;
    manager.responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSUTF8StringEncoding];
    
//    [manager.requestSerializer setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"contentType"];
    
    //无条件的信任服务器上的证书
    AFSecurityPolicy *securityPolicy =  [AFSecurityPolicy defaultPolicy];

    // 客户端是否信任非法证书
    securityPolicy.allowInvalidCertificates = NO;
    // 是否在证书域字段中验证域名
    securityPolicy.validatesDomainName = YES;
    manager.securityPolicy = securityPolicy;
    
    NSString* cmdStr = NSStringFromSelector(_cmd);
    
    NSMutableDictionary *mDic = [NSMutableDictionary dictionaryWithDictionary:params];
    NSString *sessionId = [UIKitFactory  getCacheValueWithType:LoginValueSESSION];
    //
     [manager.requestSerializer setValue:sessionId forHTTPHeaderField:@"token"];
    
    [manager.requestSerializer setValue:[UIDeviceHardware systemVersion] forHTTPHeaderField:@"systemVersion"];
    [manager.requestSerializer setValue:@"ios" forHTTPHeaderField:@"systemName"];
    [manager.requestSerializer setValue:[UIDeviceHardware platformString] forHTTPHeaderField:@"phoneType"];
    [manager.requestSerializer setValue:[UIDeviceHardware appinfoType:1] forHTTPHeaderField:@"version"];
    [manager.requestSerializer setValue:[UIDeviceHardware appinfoType:2] forHTTPHeaderField:@"packageName"];
    [manager.requestSerializer setValue:@"App Store" forHTTPHeaderField:@"channel"];

    params = mDic.mutableCopy;
    
    [manager.responseSerializer setAcceptableContentTypes: [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript",@"text/html",@"text/css", @"text/plain",nil,nil]];
    
    NSLog(@"🌰🌰🌰请求URL==========%@\n\n🍇🍇🍇请求sessionId==========%@\n\n🍮🍮🍮请求参数==========%@",url,sessionId,params);

    [manager POST:url parameters:params headers:nil progress:^(NSProgress * _Nonnull uploadProgress) {
            
        } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
            if (block) {
                
                block(responseObject);
                
                //插入缓存
                if (needCache) {
                    [self setDataToLocationData:responseObject pathName:url dic:params];
                    
                    
                }
            }
        } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
            if (failureblock) {
                
                failureblock(error);
                
            }
            
        }];
}
- (void)getWithDicNeedCache:(NSMutableDictionary *)dic{
    
    
    dic[PRAMAS][@"cache"] = @1;
    [self getWithDic:dic];
    
    
}


- (void)getWithDic:(NSMutableDictionary *)dic{
    
    
    [self __getDataWithUrl:dic[URLS] params:dic[PRAMAS] resultBlock:^(id result) {
        
        if (self.reqDelegate && [self.reqDelegate respondsToSelector:@selector(result:sel:)]) {
            
            [self.reqDelegate result:result sel:NSStringFromSelector(_cmd)];
            
        }
        
        
    } failureBlock:^(NSError * _Nonnull error) {
        
        if (self.reqDelegate && [self.reqDelegate respondsToSelector:@selector(faild:sel:)]) {
            
            [self.reqDelegate faild:error sel:NSStringFromSelector(_cmd)];
            
        }
        
        
    }];
    
    
    
    
}


- (void)postWithDic:(NSMutableDictionary *)dic{
    

    
    [self __postDataWithUrl:dic[URLS] params:dic[PRAMAS] resultBlock:^(id result) {
        
        if (self.reqDelegate && [self.reqDelegate respondsToSelector:@selector(result:sel:)]) {
            
            [self.reqDelegate result:result sel:NSStringFromSelector(_cmd)];
            
        }
        
    } failureBlock:^(NSError * _Nonnull error) {
        
        if (self.reqDelegate && [self.reqDelegate respondsToSelector:@selector(faild:sel:)]) {
            
            [self.reqDelegate faild:error sel:NSStringFromSelector(_cmd)];
            
        }
        
        
    }];
    
    
    
}

最后在HandleM文件中获取到网络请求数据

#import "HandleM.h"

@implementation HandleM

- (void)result:(id)data sel:(NSString *)sel{

}

- (void)faild:(id)data sel:(NSString *)sel{

}