//

// NetWorkingHTTP.m

// NetWorkingHTTP

//

// Created by mac on 15/6/2.

// Copyright (c) 2015年 白仕云. All rights reserved.

//

#import "BSYNetWorkingHTTP.h"

@implementation BSYNetWorkingHTTP

//这个函数是判断网络是否可用的函数（wifi或者蜂窝数据可用，都返回YES）

+ (BOOL)bsy_NetWorkIsNetWorking{

if(

([[Reachability reachabilityForInternetConnection] currentReachabilityStatus]

!= NotReachable)

&&

([[Reachability reachabilityForLocalWiFi] currentReachabilityStatus]

!= NotReachable)

){

return YES;

}else{

return NO;

}

}

//post异步请求封装函数

+ (void)bsy_post:(NSString *)URL RequestParams:(NSDictionary *)params FinishBlock:(void (^)(NSURLResponse *response, NSData *data, NSError *connectionError)) block{

//把传进来的URL字符串转变为URL地址

NSURL *url = [NSURL URLWithString:URL];

//请求初始化，可以在这针对缓存，超时做出一些设置

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url

cachePolicy:NSURLRequestReloadIgnoringCacheData

timeoutInterval:20];

//解析请求参数，用NSDictionary来存参数，通过自定义的函数parseParams把它解析成一个post格式的字符串

NSString *parseParamsResult = [self parseParams:params];

NSData *postData = [parseParamsResult dataUsingEncoding:NSUTF8StringEncoding];

[request setHTTPMethod:@"POST"];

[request setHTTPBody:postData];

//创建一个新的队列（开启新线程）

NSOperationQueue *queue = [NSOperationQueue new];

//发送异步请求，请求完以后返回的数据，通过completionHandler参数来调用

[NSURLConnection sendAsynchronousRequest:request

queue:queue

completionHandler:block];

}

//把NSDictionary解析成post格式的NSString字符串

+ (NSString *)parseParams:(NSDictionary *)params{

NSString *keyValueFormat;

NSMutableString *result = [NSMutableString new];

//实例化一个key枚举器用来存放dictionary的key

NSEnumerator *keyEnum = [params keyEnumerator];

id key;

while (key = [keyEnum nextObject]) {

keyValueFormat = [NSString stringWithFormat:@"%@=%@&",key,[params valueForKey:key]];

[result appendString:keyValueFormat];

NSLog(@"post()方法参数解析结果：%@",result);

}

return result;

}

/**

* get请求

*/

// 将网络数读取为字符串

+ (NSString *)bsy_getDataByURL:(NSString *) url {

return [[NSString alloc] initWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]] encoding:NSUTF8StringEncoding];

}

//读取网络图片

+(UIImage *)bsy_getImageByURL:(NSString *) url {

return [[UIImage alloc] initWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]]];

}

@end