.h 文件中

h文件.png

代码如下

import <Foundation/Foundation.h>

@interface LBNetWorkManager : NSObject

+(LBNetWorkManager *)netManager;

-(void)Post:(NSString *)urlStr obj:(id)obj Success:(void (^)(id result))success Fault:(void (^)(id result))fault;

@end

这个够简单了吧
再来.m文件中

m文件1.png m文件2.png m文件3.png m文件4.png m文件5.png m文件6.png

代码如下

import "LBNetWorkManager.h"

import<objc/runtime.h>

//定义成功的回调，接收传过来的block，在下载数据成功后回调到调用查询数据的地方
typedef void (^Success)(id result);
typedef void (^Fault) (id result);

@interface LBNetWorkManager()

//接收数据
@property (nonatomic,strong)NSMutableData * receiveData;

//使用copy是将block从栈转移到堆， 避免内存释放是栈上的被释放，如果那样子， 在调用处是无论如何都不能接收到返回数据
@property (nonatomic,copy)Success success;

@property (nonatomic,copy)Fault fault;

@end

@implementation LBNetWorkManager

+(LBNetWorkManager *)netManager{
//类方法创建对象， 最好每个请求都创建一个对象，这样子不会导致异步时的不确定性
LBNetWorkManager *netManager = [[LBNetWorkManager alloc]init];
return netManager;
}

pragma mark urlStr直接传入拼接的字符串 obj必须是传入一个对象

-(void)Post:(NSString *)urlStr obj:(id)obj Success:(void (^)(id result))success Fault:(void (^)(id result))fault{

//成功的回调，_suceess 的指针指向success，以后调用_success 就是调用success，下同
_success  = success;

//失败的回调
_fault  = fault;

//构建为请求url
NSURL * url = [NSURL URLWithString:urlStr];

//获取json格式的data
NSData *data = [self getJSON:obj];

//设置请求
NSMutableURLRequest *request = [[NSMutableURLRequest alloc]initWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10];
//请求方式
[request setHTTPMethod:@"POST"];

//请求内容格式
[request addValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

//请求体
[request setHTTPBody:data];

//开始连接
NSURLConnection * connection  = [[NSURLConnection alloc]initWithRequest:request delegate:self];

}

//当连接通了之后再做初始化

• (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{

  //请求的返回信息
  NSHTTPURLResponse *res = (NSHTTPURLResponse *)response;

  NSLog(@"%@",[res allHeaderFields]);

  self.receiveData = [NSMutableData data];
  }

//接收到服务器传输数据的时候调用，此方法根据数据大小执行若干次
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{

//信息是一个一个的来的 所以就需要将返回的信息追加到数据后面
[self.receiveData appendData:data];

}

//数据传完之后调用此方法
-(void)connectionDidFinishLoading:(NSURLConnection *)connection{

 //将得到的信息转为字典
NSDictionary * dictAnalysis= [self receiveDataChangeTouchDictionary];
//在这里返回数据到调用处
_success(dictAnalysis);

}
//请求成功后，将返回的数据转换为字典

• (NSDictionary *)receiveDataChangeTouchDictionary{
  //判断是否为空，为空则不转
  if (!_receiveData) {
  return nil;
  }
  NSError *error;
  //转为字典
  NSDictionary *dictAnalysis = [NSJSONSerialization JSONObjectWithData:self.receiveData options:NSJSONReadingMutableContainers error:&error];
  if(error) {
  NSLog(@"json解析失败：%@",error);
  return nil;
  }
  return dictAnalysis;
  }

//网络请求过程中，出现任何错误（断网，连接超时等）会进入此方法

-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error{

//返回错误信息，
_fault(error);

}

//获取json格式的数据
-(NSData*)getJSON:(id)obj{

return [self getJSON:obj options:NSJSONWritingPrettyPrinted error:nil];

}
-(NSData)getJSON:(id)obj options:(NSJSONWritingOptions)options error:(NSError*)error{

return [NSJSONSerialization dataWithJSONObject:[self getObjectData:obj] options:options error:error];

}
//将对象的属性和值对应起来， 作为字典的格式
-(NSDictionary*)getObjectData:(id)obj{

NSMutableDictionary
*dic = [NSMutableDictionary dictionary];

unsigned
int propsCount;

objc_property_t *props = class_copyPropertyList([obj class], &propsCount);

for(int i = 0;i < propsCount; i++){
    
    objc_property_t prop = props[i];
    
    NSString  *propName = [NSString stringWithUTF8String:property_getName(prop)];
    
    id value = [obj valueForKey:propName];
    
    if(value == nil) {
       value = [NSNull null];
    }
    
    else {
      value = [self getObjectInternal:value];
    }
    
    [dic setObject:value forKey:propName];
}
return dic;
}

-(id)getObjectInternal:(id)obj{

if([obj isKindOfClass:[NSString class]]
   || [obj isKindOfClass:[NSNumber class]]
   || [obj isKindOfClass:[NSNull class]]){
    
    return obj;
}

if([obj  isKindOfClass:[NSArray class]]) {
    
    NSArray *objarr = obj;
    
    NSMutableArray  *arr = [NSMutableArray arrayWithCapacity:objarr.count];
    
    for(int  i = 0;i < objarr.count; i++) {
        
        [arr setObject:[self getObjectInternal:[objarr objectAtIndex:i]] atIndexedSubscript:i];
    }
    
    return arr;
}

if([obj  isKindOfClass:[NSDictionary class]]) {
    
    NSDictionary  *objdic = obj;
    
    NSMutableDictionary  *dic = [NSMutableDictionary dictionaryWithCapacity:[objdic count]];
    
    for(NSString *key in objdic.allKeys){
      [dic  setObject:[self getObjectInternal:[objdic objectForKey:key]] forKey:key];
    }
    
    return  dic;
}

return [self getObjectData:obj];

}
@end

调用的时候

调用.png
代码如下
-(void)loginAction{
NSString * userName = [self makeInputStrToBeStandard:self.fieldUserName.text];
NSString * passWord = self.fieldPassWord.text;
NSString *URLStr = [NSString stringWithFormat:@"http://121.196.227.33:1688/api/%@",@"postSearch"];

LBLoginModel * loginModel = [[LBLoginModel alloc]initWithPhoneNumber:userName password:passWord];

loginModel.text  = [[LBLoginModelText alloc]init];
 loginModel.text.PhoneNumber = @"123";
 loginModel.text.WeiboId = @"234";

self.netManager = [LBNetWorkManager netManager];
[self.netManager Post:URLStr obj:loginModel Success:^(id result) {
    
} Fault:^(id result) {
    
}];

}