restful使用不同的http访问方法请求URL

来源：互联网发布：网络推广平台又叫什么编辑：程序博客网时间：2024/05/16 07:59

restful是一种设计风格,知识提供一组设计原则和约束条件,主要用于客户端和服务器交互类的软件;

restful使用不同的http访问方法请求URL,由服务器端人员开发,前端人员使用,

http的请求方法有get ,post,head,put,delete,options,trace,connect,patch

get------获取数据----------datatask

post-------新增上传数据--------uploadtask

put-------修改上传数据------------uploadtask(需要用户名密码)

delete------删除数据--------------datatask(需要用户名密码)

__________________________________________________________________________

put 请求方法

- (void)uploadFile{

//1.session

NSURLSession *session =[NSURLSessionsharedSession];

NSURL *url = [NSURLURLWithString:@"http://127.0.0.1/uploads/2.JPG"];

//3请求

NSMutableURLRequest *request = [NSMutableURLRequestrequestWithURL:url];

//put方式提交数据

request.HTTPMethod = @"put";

//Authorization: Basic YWRtaW46YWRtaW4= ----- admin:admin

[request setValue:[selfgetAuthWithUsername:@"admin"password:@"admin"]forHTTPHeaderField:@"Authorization"];

//文件的URL

NSURL *fileURL = [[NSBundlemainBundle] URLForResource:@"2.JPG"withExtension:nil];

//2.创建上传任务

NSURLSessionUploadTask *uploadTask = [sessionuploadTaskWithRequest:request fromFile:fileURL completionHandler:^(NSData *_Nullable data, NSURLResponse *_Nullable response, NSError * _Nullable error) {

1.响应体

2.响应头

3.错误

NSLog(@"%@",data);

NSLog(@"%@",response);

}];

//4 开启

[uploadTask resume];

}

//拼接Authorization

//Authorization: Basic YWRtaW46YWRtaW4= ----- admin:admin

-(NSString *)getAuthWithUsername:(NSString *)username password:(NSString *)password{

//1.拼接用户名和密码 admin:admin

NSString *str = [NSStringstringWithFormat:@"%@:%@",username,password];

//YWRtaW46YWRtaW4=

NSString *base64String = [selfbase64Encode:str];

return [NSStringstringWithFormat:@"Basic %@",base64String];

}

//base64编码

-(NSString *)base64Encode:(NSString *)str{

NSData *data = [strdataUsingEncoding:NSUTF8StringEncoding];

return [database64EncodedStringWithOptions:0];

}

__________________________________________________________________________

delete请求方法

#import "ViewController.h"

@interface ViewController ()<NSURLSessionTaskDelegate>

@property(nonatomic,strong)NSURLSession *session;

@end

@implementation ViewController

//懒加载

-(NSURLSession *)session{

if(!_session){

NSURLSessionConfiguration *config = [NSURLSessionConfigurationdefaultSessionConfiguration];

_session = [NSURLSessionsessionWithConfiguration:config delegate:selfdelegateQueue:[NSOperationQueuemainQueue]];

}

return_session;

}

- (void)viewDidLoad {

[superviewDidLoad];

[selfdeleteFile];

}

//删除文件 delete请求

-(void)deleteFile{

NSURL *url = [NSURLURLWithString:@"http://127.0.0.1/uploads/2.JPG"];

//设置请求--删除

NSMutableURLRequest *request = [NSMutableURLRequestrequestWithURL:url];

//delete方式删除数据

request.HTTPMethod = @"delete";

//Authorization: Basic YWRtaW46YWRtaW4= ----- admin:admin

[request setValue:[selfgetAuthWithUsername:@"admin"password:@"admin"]forHTTPHeaderField:@"Authorization"];

//datatask

NSURLSessionDataTask *task = [self.sessiondataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {

NSLog(@"%@",data);

NSLog(@"%@",response);

}];

//开启操作

[task resume];

}

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