Iphone HTTP请求工具类

在项目中我封装了个http请求的工具类，因为项目中只用到post请求，所以get请求的方法只是刚开始试了下，行得通，不知到有没有错误，代码如下：

h文件：

#import <Foundation/Foundation.h> /* *自定义http代理 */ @protocol MyhttpUitlDelegate <NSObject> -(void) setServicereturnData:(NSString*)servicedata; @end @interface MyHTTPUtil : NSObject<NSXMLParserDelegate> { NSMutableData *webData;//异步请求返回回来的数据 id<MyhttpUitlDelegate> myhttputildelegate; NSString *dialogcanshow;//防止快速两次请求以上弹出多个等待对话筐 //等待对话筐 UIAlertView *mt; } @property(nonatomic,retain)id<MyhttpUitlDelegate> myhttputildelegate; @property(nonatomic,retain)UIAlertView *mt; @property(nonatomic,retain) NSString *dialogcanshow;//防止快速两次请求以上弹出多个等待对话筐 +(NSString *)httpForTongbuGET:(NSString *)urlstring; +(NSString *)httpForTongbuPOST:(NSString *)urlstring addParms:(NSData *)urlparms; //-(void)httpForYibuPOST:(NSString *)urlstring addParms:(NSString *)urlparms; -(void)httpForYibuPOSTForData:(NSString *)urlstring addParms:(NSData *)urlparms; -(void)httpForYibuGET:(NSString *)urlstring addParms:(NSString *)urlparms; -(void)httpForYibuPOSTPageparms:(NSString *)urlstring addParms:(NSData *)pageparms; -(void)showwaitalertview; @end
m文件

#import "MyHTTPUtil.h" #import "FileUtils.h" @implementation MyHTTPUtil //url公用部分 //NSString *baseurl = @"http://192.168.0.63:8080/mbtravel/"; //NSString *baseurl = @"http://192.168.0.63:8081/mbtr/"; NSString *baseurl = @"http://192.168.128.1:8080/mbtravel/"; NSInteger PagingRows = 5;//每页的行数 @synthesize myhttputildelegate; @synthesize dialogcanshow; @synthesize mt; -(void)dealloc{ [myhttputildelegate release]; [dialogcanshow release]; [mt release]; [super dealloc]; } -(id)init{ self.dialogcanshow = @"false"; return [super init]; } //http的同步get请求，返回服务器返回的数据 +(NSString *)httpForTongbuGET:(NSString *)urlstring{ NSString *allurl = [NSString stringWithFormat:@"%@%@",baseurl,urlstring]; NSURL* url = [NSURL URLWithString:allurl]; NSMutableURLRequest* request = [[[NSMutableURLRequest alloc]init]autorelease]; [request setURL:url]; [request setHTTPMethod:@"GET"]; NSString *contentType = [NSString stringWithFormat:@"text/xml"];//@"application/json" [request addValue:contentType forHTTPHeaderField:@"Content-Type"]; NSHTTPURLResponse *urlResponese = nil; NSError *error = [[NSError alloc]init]; NSData* data = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponese error:&error]; NSString* result= [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; if([urlResponese statusCode] >=200&&[urlResponese statusCode]<300){ return result; } return nil; [error release]; [result release]; } //异步get请求 -(void)httpForYibuGET:(NSString *)urlstring addParms:(NSString *)urlparms{ // if ([ValueUtils caseEquals:self.dialogcanshow to:@"true"]){ // [self showwaitalertview];//弹出等待对话筐 // } // NSString *allurl = [NSString stringWithFormat:@"%@%@%@",baseurl,urlstring,urlparms]; NSLog(@"%@",allurl); NSURL *url = [NSURL URLWithString:allurl]; NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:15]; [theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"]; //[theRequest setTimeoutInterval:15];//设置了也是无效 [theRequest setHTTPMethod:@"GET"]; NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self startImmediately:YES]; if(theConnection) { webData = [[NSMutableData data] retain]; } } // ////异步post请求,带参数 // //-(void)httpForYibuPOST:(NSString *)urlstring addParms:(NSString *)urlparms{ //// if ([ValueUtils caseEquals:self.dialogcanshow to:@"true"]) { //// [self showwaitalertview];//弹出等待对话筐 //// } // // NSString *allurl = [NSString stringWithFormat:@"%@%@%@",baseurl,urlstring,urlparms]; // //NSStringEncoding enc=CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000); //转换编码，包括中文 // // NSString *allurl2=[allurl stringByAddingPercentEscapesUsingEncoding:enc]; // NSString *allurl2= [allurl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; // NSLog(@"url===%@",allurl2); // NSURL *url = [NSURL URLWithString:allurl2]; // NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:15]; // [theRequest setValue:@"zh-cn" forHTTPHeaderField:@"Accept-Language"]; // [theRequest setValue:@"gzip, deflate" forHTTPHeaderField:@"Accept-Encoding"]; // [theRequest addValue: @"application/x-www-form-urlencoded;charset=UTF-8" forHTTPHeaderField:@"Content-Type"]; // //[theRequest setTimeoutInterval:15];//设置了也是无效 // [theRequest setHTTPMethod:@"POST"]; // NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self startImmediately:YES]; // // // if(theConnection) { // webData = [[NSMutableData data] retain]; // // } //} //基本上只用下面这三个方法 //http的同步post请求，返回服务器返回的数据 +(NSString *)httpForTongbuPOST:(NSString *)urlstring addParms:(NSData *)urlparms{ NSString *allurl = [NSString stringWithFormat:@"%@%@",baseurl,urlstring]; NSURL* url = [NSURL URLWithString:allurl]; NSMutableURLRequest* request = [[[NSMutableURLRequest alloc]init]autorelease]; [request setURL:url]; [request setHTTPMethod:@"POST"]; [request setValue:@"zh-cn" forHTTPHeaderField:@"Accept-Language"]; [request setValue:@"gzip, deflate" forHTTPHeaderField:@"Accept-Encoding"]; [request addValue: @"application/x-www-form-urlencoded;charset=UTF-8" forHTTPHeaderField:@"Content-Type"]; // [request addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];//写这句而不是上面那句，就会出错 [request setHTTPBody:urlparms]; NSHTTPURLResponse *urlResponese = nil; NSError *error = [[NSError alloc]init]; NSData* data = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponese error:&error]; NSString* result= [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; if([urlResponese statusCode] >=200&&[urlResponese statusCode]<300){ return result; } return nil; [error release]; [result release]; } //异步post请求，后面参数是nsdata类型，主要针对参数提交 -(void)httpForYibuPOSTForData:(NSString *)urlstring addParms:(NSData *)urlparms{ NSString *allurl = [NSString stringWithFormat:@"%@%@",baseurl,urlstring]; NSString *allurl2= [allurl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSURL *url = [NSURL URLWithString:allurl2]; NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:15]; [theRequest setValue:@"zh-cn" forHTTPHeaderField:@"Accept-Language"]; [theRequest setValue:@"gzip, deflate" forHTTPHeaderField:@"Accept-Encoding"]; [theRequest addValue: @"application/x-www-form-urlencoded;charset=UTF-8" forHTTPHeaderField:@"Content-Type"]; [theRequest setHTTPMethod:@"POST"]; [theRequest setValue:[NSString stringWithFormat:@"%d",PagingRows] forHTTPHeaderField:@"PagingRows"]; [theRequest setHTTPBody:urlparms]; if ([ValueUtils caseEquals:self.dialogcanshow to:@"true"]){ [self showwaitalertview];//弹出等待对话筐 } NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self startImmediately:YES]; if(theConnection) { webData = [[NSMutableData data] retain]; } } //异步post请求,主要针对分页查询 -(void)httpForYibuPOSTPageparms:(NSString *)urlstring addParms:(NSData *)pageparms{ // if ([ValueUtils caseEquals:self.dialogcanshow to:@"true"]) { // [self showwaitalertview];//弹出等待对话筐 // } NSString *allurl = [NSString stringWithFormat:@"%@%@",baseurl,urlstring]; NSString *allurl2= [allurl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSURL *url = [NSURL URLWithString:allurl2]; NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:15]; [theRequest setValue:@"zh-cn" forHTTPHeaderField:@"Accept-Language"]; [theRequest setValue:@"gzip, deflate" forHTTPHeaderField:@"Accept-Encoding"]; [theRequest addValue: @"application/x-www-form-urlencoded;charset=UTF-8" forHTTPHeaderField:@"Content-Type"]; [theRequest setHTTPMethod:@"POST"]; [theRequest setValue:[NSString stringWithFormat:@"%d",PagingRows] forHTTPHeaderField:@"PagingRows"]; [theRequest setHTTPBody:pageparms]; if ([ValueUtils caseEquals:self.dialogcanshow to:@"true"]){ [self showwaitalertview];//弹出等待对话筐 } NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self startImmediately:YES]; if(theConnection) { webData = [[NSMutableData data] retain]; } } - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { [webData setLength:0]; // if ([ValueUtils caseEquals:self.dialogcanshow to:@"true"]){ // [self showwaitalertview];//弹出等待对话筐 // } } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [webData appendData:data]; } - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { if (mt!=nil) { [mt dismissWithClickedButtonIndex:1 animated:YES]; } [self performSelectorInBackground:@selector(showerroralertview) withObject:nil]; //[mt dismissWithClickedButtonIndex:1 animated:YES]; } - (void)connectionDidFinishLoading:(NSURLConnection *)connection { if (mt!=nil) { [mt dismissWithClickedButtonIndex:1 animated:YES]; } [connection release]; NSString* result= [[NSString alloc] initWithData:webData encoding:NSUTF8StringEncoding]; [self.myhttputildelegate setServicereturnData:result];//为页面设值 [webData release]; [result release]; } //弹出error对话筐 -(void)showerroralertview{ UIAlertView *erroralert = [[UIAlertView alloc]initWithTitle:@"提示" message:@"请求数据失败" delegate:self cancelButtonTitle:nil otherButtonTitles:@"确定", nil]; [erroralert show]; [erroralert release]; } //弹出等待对话筐 -(void)showwaitalertview{ mt = [[UIAlertView alloc]initWithTitle:nil message:@"正在加载......" delegate:self cancelButtonTitle:nil otherButtonTitles:nil, nil]; [mt show]; } @end