IT共论iOS学习笔记iOS进阶指南

利用api在微博上发表文章

2016-08-12  本文已影响125人  hunterzhu

今天写的是一个在微博上发文章的代码,封装了一个简单的方法,必须发图片和文字的一个接口。
1.在微博上注册一个开发者账号,点击API接口。
2.这里面有很多的接口,今天只讲一个。就是微博接口中的写入接口 statuses/upload 上传图片并发布一条微博。


位置

3.点击文档下面的API文档后面的“接口测试工具”,获取一个 Access Token:一个身份证明 这是一个关键的KEY。


这里面的内容.png
好了开始代码部分:

1.创建一个类
创建方法:


#import <Foundation/Foundation.h>

//block 传值,可以把自己想要的东西传回去
typedef void(^completeBlock)(NSData *_Nullable data,NSURLResponse * _Nullable response,NSError *_Nullable error);

@interface ManagerWeibo : NSObject

//上传图片和文字的方法
-(void)postUploadWeiboApi:(NSString *_Nullable)urlApi withContent:(NSString *_Nullable)content withImage:(NSString *_Nullable)image complete:(_Nullable completeBlock)block;

@end

2.方法实现

//
//  ManagerWeibo.m
//  UpLoadWeibo-demo
//
//  Created by mac on 16/8/12.
//  Copyright © 2016年 mac. All rights reserved.
//

#import "ManagerWeibo.h"
//获取Access_Toke,这里只是一个样板,并不能用
#define Access_Token @"2.006Z_qTFYCZGtBa09d247a83AzdrWDD"
//一个标识,可自己修改
#define boundary @"sentWeiboID"

@implementation ManagerWeibo


-(void) postUploadWeiboApi:(NSString *)urlApi withContent:(NSString *)content withImage:(NSString *)image complete:(completeBlock)block{
    
    //异步线程中调用
    dispatch_async(dispatch_get_global_queue(0, 0), ^{
        
        NSURL *url = [NSURL URLWithString:urlApi];
        
        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
        
        //请求方式
        request.HTTPMethod = @"POST";
        
        //请求头
        [request setValue:[NSString stringWithFormat:@"multipart/form-data; charset=utf-8;boundary=%@",boundary] forHTTPHeaderField:@"Content-Type"];
        //请求体
        NSString *path = [[NSBundle mainBundle] pathForResource:image ofType:nil];
        
        NSData *acceptData =[self buildBodyData:content withImagePath:path];
        
        NSURLSession *session = [NSURLSession sharedSession];
        //上传数据任务
        NSURLSessionUploadTask *task= [session uploadTaskWithRequest:request fromData:acceptData completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
            //回调回去
            block(data,response,error);
        }];
        [task resume];
        
    });
    
    
}
//请求体方法:
- (NSData *)buildBodyData:(NSString *)content withImagePath:(NSString *)path{
    
    NSMutableString *bodyStr = [NSMutableString string];
    
    /*
     上传数据的格式:
     --AaB03x
     Content-Disposition: form-data; name="key1"
     
     
     value1
     --AaB03x
     Content-disposition: form-data; name="key2"
     
     
     value2
     --AaB03x
     Content-disposition: form-data; name="key3"; filename="file"
     Content-Type: application/octet-stream
     
     图片数据...
     --AaB03x--
     */
    //PS:谨遵格式。这里我只写了几个必须要填的KEY

    //1.access_token
    [bodyStr appendFormat:@"--%@\r\n",boundary]; // \r回到行首 \n换行
    [bodyStr appendFormat:@"Content-Disposition: form-data; name=\"access_token\"\r\n\r\n"];
    [bodyStr appendFormat:@"%@\r\n",Access_Token];
    //2.status
    [bodyStr appendFormat:@"--%@\r\n",boundary];
    [bodyStr appendFormat:@"Content-Disposition: form-data; name=\"status\"\r\n\r\n"];
    [bodyStr appendFormat:@"%@\r\n",content];
    //3.pic
    [bodyStr appendFormat:@"--%@\r\n",boundary];
    [bodyStr appendFormat:@"Content-Disposition: form-data; name=\"pic\";filename=\"file\"\r\n"];
    [bodyStr appendFormat:@"Content-Type: application/octet-stream\r\n\r\n"];
    
     NSMutableData *bodyData = [NSMutableData data];
     
     //(1)startData
     NSData *startData = [bodyStr dataUsingEncoding:NSUTF8StringEncoding];
     [bodyData appendData:startData];
     
     //(2)pic
     NSData *picdata  =[NSData dataWithContentsOfFile:path];
     [bodyData appendData:picdata];
     
     //(3)--Str--
     NSString *endStr = [NSString stringWithFormat:@"\r\n--%@--\r\n",boundary];
     NSData *endData = [endStr dataUsingEncoding:NSUTF8StringEncoding];
     [bodyData appendData:endData];

    return bodyData;
    
}

@end

调用方法:

//
//  ViewController.m
//  UpLoadWeibo-demo
//
//  Created by mac on 16/8/12.
//  Copyright © 2016年 mac. All rights reserved.
//

#import "ViewController.h"
#import "ManagerWeibo.h"
@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    ManagerWeibo *manager = [[ManagerWeibo alloc] init];
    //获取API接口,发表的内容和图片
    [manager postUploadWeiboApi:@"https://api.weibo.com/2/statuses/upload.json" withContent:@"我是一个大大的神秘的有趣的码农" withImage:@"刘诗诗.jpg" complete:^(NSData *data, NSURLResponse *response, NSError *error) {
        NSLog(@"%@",response);
    }];

}
@end

最后在你的的微博上就能看到你写的文章了!!


结果
上一篇下一篇

猜你喜欢

热点阅读