1.分析
示意图
从图中我们看到：
1.每个页面的Controller负责组装para参数，调用Api类的接口方法
2.Api类在发起请求之前，追加公共参数
3.Api类序列化son数据(使用afn来完成)，并且返回NSDictionary的数据，和一个NSOpration类型的请求操作的引用。
4.使用ApiPath头文件来存放接口路径
返回一个NSOpration类型的请求操作的引用是为了能在Controller里面取消请求并且释放请求。
2.实现
api.png
ApiPath.h 存放所有接口的路径，是一组宏定义
//域名
#define kDomain @"https://api.xxx.cn/"
//注册
#define kRegiser [NSString stringWithFormat:@"%@login/regis",kDomain]
//登录
#define kLogin [NSString stringWithFormat:@"%@login/login",kDomain]
......
//以上两个接口举例子，剩下的就不多写了，没意义！
Api.h定义了项目所有的接口
#import <Foundation/Foundation.h>
#import <AFNetworking.h>//引入AFN
typedef void (^ApiSuccessBlock)(NSDictionary *dic);//请求成功的回调
typedef void (^ApiFailedBlock)(void);//请求失败的回调
@interface Api : NSObject
#pragma mark - 注册
+ (NSOperation *)apiRegisterWithPara:(NSMutableDictionary *)parameter
success:(ApiSuccessBlock)successBlock
failed:(ApiFailedBlock)failedBlock;
#pragma mark - 登陆
+ (NSOperation *)apiLogInWithPara:(NSMutableDictionary *)parameter
success:(ApiSuccessBlock)successBlock
failed:(ApiFailedBlock)failedBlock;
.....
@end
Api.m的实现部分
@implementation Api
//首先看一下发起请求的方法
/**
* 发起请求
*
* @param type 请求类型
* @param path 路径
* @param muDict 参数
* @param successBlock 成功回调
* @param failedBlock 失败回调
*
* @return 请求操作的引用
*/
+(AFHTTPRequestOperation *)sendRequestWith:(NSString *)type
path:(NSString *)path
parameters:(NSMutableDictionary *)muDict
success:(ApiSuccessBlock)successBlock
failed:(ApiFailedBlock)failedBlock
{
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
//1.设置超时时间
manager.requestSerializer.timeoutInterval = 15;
//2.添加用户信息
[self appendUserInfo:muDict];
if ([type isEqualToString:@"get"]) {
AFHTTPRequestOperation *request = [manager GET:path parameters:muDict success:^(AFHTTPRequestOperation *operation, id responseObject) {
GLLog(@"GET URL (SUCCESS) :\n%@",[operation.response.URL absoluteString]);
GLLog(@"GET URL (RESULT) : \n%@",responseObject);
successBlock(responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
GLLog(@"GET URL (FAILED) :\n%@",[operation.response.URL absoluteString]);
GLLog(@"GET URL (ERROR) : \n%@",error);
failedBlock();
}];
return request;
}else{
AFHTTPRequestOperation *request = [manager POST:path parameters:muDict success:^(AFHTTPRequestOperation *operation, id responseObject) {
GLLog(@"POST URL (SUCCESS): %@ \nPARAMETER -- \n%@",path,muDict);
GLLog(@"POST URL (RESULT) : %@ \nRESULT -- \n%@",path,responseObject);
successBlock(responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
GLLog(@"POST URL (FAILED): %@ \nPARAMETER : \n%@",path,muDict);
GLLog(@"POST URL (FAILED): %@ \nERROR INFO: \n%@",path,error);
failedBlock();
}];
return request;
}
}
/**
* 追加用户信息
*
*/
+ (void)appendUserInfo:(NSMutableDictionary *)parameter{
if ([GlobalObj shareObj].account) {
[parameter setObject:[NSString stringWithFormat:@"%d",[GlobalObj shareObj].account.user_id] forKey:@"user_id"];
[parameter setObject:[GlobalObj shareObj].account.access_token forKey:@"access_token"];
}
}
#pragma mark - 注册
+ (NSOperation *)apiRegisterWithPara:(NSMutableDictionary *)parameter
success:(ApiSuccessBlock)successBlock
failed:(ApiFailedBlock)failedBlock{
return [self sendRequestWith:@"post" path:kRegiser parameters:parameter success:successBlock failed:failedBlock];
}
#pragma mark - 登陆
+ (NSOperation *)apiLogInWithPara:(NSMutableDictionary *)parameter
success:(ApiSuccessBlock)successBlock
failed:(ApiFailedBlock)failedBlock
{
return [self sendRequestWith:@"get" path:kLoginWithMobile parameters:parameter success:successBlock failed:failedBlock];
}
//......
//后面的新的接口，在ApiPath中添加路径，在这后面添加方法就行了
@end
3.使用
以注册页面为例，在Controller中使用方法如下：
/**
* 用来接收发起的请求，你可以把这个属性抽出来放到父类中，避免写多次
*/
@property (nonatomic, strong) NSOperation *op;
[self.parameters setObject:self.phoneField.text forKey:@"user_name"];
[self.parameters setObject:self.pwField.text forKey:@"password"];
[self.parameters setObject:self.codeField.text forKey:@"code"];
self.op = [Api apiRegisterWithPara:self.parameters success:^(NSDictionary *dic) {
//正常
//在这里实现Model以及刷新数据
}
} failed:^{
//网络错误
}];
//在Controller的dealloc方法面，取消并释放请求
//同样的，你也可以把他写在父类中去、
- (void)dealloc{
[self.op cancel];
self.op = nil;
}
