6.23 Block封装post异步网路请求& AFNetworking第三方封装

1,Block封装post异步网路请求
2,AFNetworking第三方封装

//  ViewController.m
//  6.23.UI
//
//  Created by rimi on 15/6/23.
//  Copyright (c) 2015年 rectinajh. All rights reserved.
//

#import "ViewController.h"
#import "NetWorkingManager.h"

#define APP_KEY @"79396f95d9bf1e813672358f2890cfa7"


@interface ViewController ()<NetWorkingManagerDelegate>

- (IBAction)buttonPressed:(id)sender;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}


- (void)requestFinished:(id)successObject{

    NSLog(@"ViewController类中实现的协议方法：%@",successObject);

}
- (void)requestFail:(id)errorDescription{

}


- (IBAction)buttonPressed:(id)sender {   
//    //配置body
    //key = 您申请的KEY&pageindex = 1 & pagesize = 2 &keyword =上海
    NSMutableDictionary *dic = [NSMutableDictionary dictionary];
    [dic setObject:@"1" forKey:@"pageindex"];
    [dic setObject:@"1" forKey:@"pagesize"];
    [dic setObject:@"上海" forKey:@"keyword"];
    [dic setObject:@"79396f95d9bf1e813672358f2890cfa7" forKey:@"key"];

     NetWorkingManager *manager = [[NetWorkingManager alloc]init];
    [manager sendAsynWithPOST:@"http://api2.juheapi.com/xiecheng/senicspot/ticket/search" param:dic success:^(id responseObject) {

        NSLog(@"block中的传值数据：%@",responseObject);
        //刷新界面操作
    }];


}



@end

//  NetWorkingManager.h
//  6.23.UI
//
//  Created by rimi on 15/6/23.
//  Copyright (c) 2015年 rectinajh. All rights reserved.
//

#import <Foundation/Foundation.h>

typedef void (^Block)(id responseObject);

@protocol  NetWorkingManagerDelegate<NSObject>

- (void)requestFinished:(id)successObject;
- (void)requestFail:(id)errorDescription;

@end

@interface NetWorkingManager : NSObject

//为什么delegate对象用weak？（手动管理下，避免循环引用）为什么用id？（签订协议的人不同）assign与weak？（arc模式下用weak）
@property (nonatomic ,weak) 
// http://www.z081.com/first.html 比较好的解释
id<NetWorkingManagerDelegate>  delegate;

- (void)sendAsynWithPOST:(NSString *)urlString
                   param:(NSMutableDictionary *)dictionary;
//封装成BLOCK
- (void)sendAsynWithPOST:(NSString *)urlString
                   param:(NSMutableDictionary *)dictionary
                 success:(Block)successBlock;

@end

封装部分

//  NetWorkingManager.m
//  6.23.UI
//
//  Created by rimi on 15/6/23.
//  Copyright (c) 2015年 rectinajh. All rights reserved.
//

#import "NetWorkingManager.h"

#import "Manager.h"


@interface NetWorkingManager ()<NSURLConnectionDelegate>


{
    NSMutableData * _data;
}

//
@property(nonatomic, copy)Block success;

@end

@implementation NetWorkingManager


- (void)sendAsynWithPOST:(NSString *)urlString
                   param:(NSMutableDictionary *)dictionary
{

    NSMutableString *bodystring = [NSMutableString string];
    for (NSString *key in dictionary) {
        //key = dic[key]
        [bodystring appendFormat:@"%@=%@&",key ,dictionary[key]];
    }

    NSData *data = [bodystring dataUsingEncoding:NSUTF8StringEncoding];
    //创建对象
    NSURL *url = [NSURL URLWithString:urlString];
    NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
    //确定request
    urlRequest.HTTPMethod = @"POST";
    [urlRequest setHTTPBody:data];

    //发送请求
    [NSURLConnection connectionWithRequest:urlRequest delegate:self];

#pragma mark - block调用
    Manager *manager = [[Manager alloc]init];
    [manager sendNetworkwithURL:@"" block:^(id object) {
        NSLog(@"%@",object);
    }];
}

#pragma mark - 封装成BLOCK
- (void)sendAsynWithPOST:(NSString *)urlString
                   param:(NSDictionary *)dictionary
                 success:(Block)successBlock
{

    NSMutableString *string = [NSMutableString string];
    for (NSString *key in dictionary) {
        //key = dic[key]
        [string appendFormat:@"%@=%@&",key ,dictionary[key]];//字符串拼接不能空格
    }
    NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding];

    //创建对象
    NSURL *url = [NSURL URLWithString:urlString];
    NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
    //确定request
    urlRequest.timeoutInterval = 10;
    urlRequest.HTTPMethod = @"POST";
    [urlRequest setHTTPBody:data];

    //发送请求
    [NSURLConnection connectionWithRequest:urlRequest delegate:self];

    //记录block
    self.success = successBlock;

}

#pragma mark -- 四个协议 正式协议protocol（类名加delegate），非正式协议，创建多个协议只是占用代码区的内存
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    NSLog(@"%@", error.localizedDescription);
}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    NSLog(@"收到请求，开始回复");
    _data = [[NSMutableData alloc] init];
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [_data appendData:data];
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    //NSLog(@"%@", _data);
    NSError * error = nil;
    id object = [NSJSONSerialization JSONObjectWithData:_data options:NSJSONReadingMutableLeaves error:&error];

    if (error) {
        NSLog(@"%@", error.localizedDescription);
    }
   //NSLog(@"%@", object);

    //使用代理传值
    //判断delegate对象存在，方法实现
//    if (_delegate && [_delegate respondsToSelector:@selector(requestFinished:)]) {
//        
//        [_delegate requestFinished:object];
//    }
    //使用block传值
    self.success(object);

}

@end

AFNetworking第三方封装

https://github.com/AFNetworking/AFNetworking
将第三方库，添加到工程

#import "AFNetworking.h"



 NSMutableDictionary *dic = [NSMutableDictionary dictionary];
    [dic setObject:@"1" forKey:@"pageindex"];
    [dic setObject:@"1" forKey:@"pagesize"];
    [dic setObject:@"上海" forKey:@"keyword"];
    [dic setObject:@"79396f95d9bf1e813672358f2890cfa7" forKey:@"key"];
#pragma mark - AfnetWorking第三方网络请求
    AFHTTPRequestOperationManager *maneger = [AFHTTPRequestOperationManager manager];
    [maneger POST:@"http://api2.juheapi.com/xiecheng/senicspot/ticket/search" parameters:dic success:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSLog(@"%@",responseObject);
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"error reason:%@",error.localizedDescription);
    }];