1.NSURLConnection代理下载设置在本地的身骑着白马MP3
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.data = [NSMutableData data];
NSString * urlString = @"http://localhost/身骑白马.mp3";
//如果接口中有中文
urlString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL * url = [NSURL URLWithString:urlString];
NSURLRequest * request = [NSURLRequest requestWithURL:url];
NSURLConnection * connect = [NSURLConnection connectionWithRequest:request delegate:self];
//开启网络连接
[connect start];
}
//服务器返回响应信息
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
NSLog(@"%@",response);
}
//接受数据（多次调用）
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[self.data appendData:data];
NSLog(@"%@",data);
}
//请求完成
- (void)connectionDidFinishLoading:(NSURLConnection *)connection{
[self.data writeToFile:@"/Users/mac/Desktop/身骑白马.mp3" atomically:YES];
NSLog(@"网络请求完成");
}
2.GET请求
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//使用get请求，获取接口
NSString * String = @"http://localhost/login.php";
//拼接参数
NSString * urlString = [NSString stringWithFormat:@"%@?username=xubaoaichiyu&password=123456",String];
//如果有中文进行转码
urlString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL * url = [NSURL URLWithString:urlString];
NSURLRequest * request = [[NSURLRequest alloc]initWithURL:url cachePolicy: timeoutInterval:];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) {
NSString * string = [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];
NSLog(@"%@",string);
}];
}
@end
3.POST请求
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//使用post请求
//获取接口
NSString * string = @"http://localhost/login.php";
//中文转码
string = [string stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL * url = [NSURL URLWithString:string];
//可变请求
NSMutableURLRequest * requst = [[NSMutableURLRequest alloc]initWithURL:url cachePolicy: timeoutInterval:];
//设置传输方式
requst.HTTPMethod = @"POST";
NSString * bodyString = [NSString stringWithFormat:@"username=xubaoaichiyu&password=123456"];
//设置请求体
requst.HTTPBody = [bodyString dataUsingEncoding:NSUTF8StringEncoding];
[NSURLConnection sendAsynchronousRequest:requst queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) {
NSString * string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(@"%@",string);
}];
}