IOS-网络(ASI使用)

一、ASI用法

  1 //
  2 //  ViewController.m
  3 //  IOS_0215_ASI
  4 //
  5 //  Created by ma c on 16/2/15.
  6 //  Copyright © 2016年 博文科技. All rights reserved.
  7 //
  8 
  9 #import "ViewController.h"
 10 #import "ASIHTTPRequest.h"
 11 
 12 @interface ViewController ()<ASIHTTPRequestDelegate>
 13 
 14 @end
 15 /*
 16  监听ASI请求：
 17  1>成为代理，遵守ASIHTTPRequestDelegate的协议，实现协议中的代理方法
 18  2>成为代理，不遵守ASIHTTPRequestDelegate的协议，自定义代理方法
 19  3>设置block
 20  */
 21 @implementation ViewController
 22 
 23 - (void)viewDidLoad {
 24     [super viewDidLoad];
 25     self.view.backgroundColor = [UIColor cyanColor];
 26 }
 27 
 28 - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
 29 {
 30     [self asynCustomMethod];
 31 }
 32 
 33 #pragma mark - 其他用法
 34 
 35 #pragma mark - 自定义方法
 36 - (void)asynCustomMethod
 37 {
 38     // 1.URL
 39     NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/video"];
 40     
 41     // 2.创建一个请求
 42     ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
 43     request.timeOutSeconds = 15;
 44     
 45     // 3.设置请求
 46     [request startAsynchronous];
 47     
 48     //设置监听方法
 49     request.delegate = self;
 50     [request setDidStartSelector:@selector(start:)];
 51     [request setDidFinishSelector:@selector(finish:)];
 52     
 53 }
 54 
 55 - (void)start:(ASIHTTPRequest *)request
 56 {
 57     NSLog(@"start------%@",request);
 58 }
 59 
 60 - (void)finish:(ASIHTTPRequest *)request
 61 {
 62     NSLog(@"finish------%@",[request responseString]);
 63 }
 64 
 65 #pragma mark - block方法
 66 - (void)asynBlock
 67 {
 68     /*
 69      如果同时设置了block和实现了代理方法，请求过程中block和代理方法都会调用
 70      调用顺序：代理方法 > block
 71      */
 72     
 73     // 1.URL
 74     NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/video"];
 75     
 76     // 2.创建一个请求
 77     ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
 78     request.timeOutSeconds = 15;
 79     
 80     // 3.开始请求
 81     [request startAsynchronous];
 82     
 83     // 4.设置block监听
 84     [request setStartedBlock:^{
 85         NSLog(@"setStartedBlock");
 86     }];
 87     [request setHeadersReceivedBlock:^(NSDictionary *responseHeaders) {
 88         NSLog(@"setHeadersReceivedBlock");
 89     }];
 90     [request setDataReceivedBlock:^(NSData *data) {
 91         NSLog(@"setDataReceivedBlock---%@",data);
 92     }];
 93     [request setCompletionBlock:^{
 94         NSLog(@"setCompletionBlock");
 95     }];
 96     [request setFailedBlock:^{
 97         NSLog(@"setFailedBlock");
 98     }];
 99 }
100 #pragma mark - 基本用法
101 
102 #pragma mark - 异步请求
103 /*
104 ///异步
105 - (void)asynGet
106 {
107     // 1.URL
108     NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/video"];
109     
110     // 2.创建一个请求
111     ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
112     request.timeOutSeconds = 15;
113     
114     // 3.设置代理
115     request.delegate = self;
116     
117     // 4.开始请求
118     [request startAsynchronous];
119 }
120 #pragma mark - ASIHTTPRequestDelegate代理方法
121 
122 //1.开始发送请求
123 - (void)requestStarted:(ASIHTTPRequest *)request
124 {
125     NSLog(@"requestStarted");
126 }
127 
128 //2.接收到服务器的响应头信息
129 - (void)request:(ASIHTTPRequest *)request didReceiveResponseHeaders:(NSDictionary *)responseHeaders
130 {
131     NSLog(@"didReceiveResponseHeaders");
132 }
133 
134 //3.接收到服务器的实体数据（具体数据）
135 //只要实现了这个代理方法，responseData\responseString就没有值 - 建议不要使用这个方法
136 - (void)request:(ASIHTTPRequest *)request didReceiveData:(NSData *)data
137 {
138     NSLog(@"didReceiveData----%@",data);
139 }
140 
141 //4.服务器的相应数据 接收完毕
142 - (void)requestFinished:(ASIHTTPRequest *)request
143 {
144     NSLog(@"requestFinished---%@",[request responseData]);
145 }
146 
147 //5.请求失败
148 - (void)requestFailed:(ASIHTTPRequest *)request
149 {
150     NSLog(@"requestFailed");
151 }
152  */
153 
154 #pragma mark - 同步请求
155 - (void)synGet
156 {
157     // 1.URL
158     NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/video"];
159     
160     // 2.创建一个请求
161     ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
162     request.timeOutSeconds = 15;
163     
164     // 3.开始请求（这段代码会卡住，等待服务器给数据）
165     [request startSynchronous];
166     
167     //4.请求完毕
168     NSError *error = [request error];
169     if (error) {
170         NSLog(@"请求失败---%@",error);
171     } else {
172         
173         //NSData *data = [request responseData];
174         //NSString *str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
175         NSString *str = [request responseString];
176         
177         NSLog(@"请求成功---%@",str);
178     }
179 }
180 
181 @end