ios中封裝網路請求類

ios中封裝網路請求類

                       ios中封裝網路請求類#import "JSNetWork.h"//asiHttpRequest#import "ASIFormDataRequest.h"//xml 的解析#import "UseXmlParser.h"//判斷是否連網#import "Reachability.h"//sbJson，判斷json的解析#import "JSON.h"@implementation JSNetWork//建立一個單例+(JSNetWork*)shareNetWork{    static JSNetWork *network = NULL;        static dispatch_once_t onceToken;    dispatch_once(&onceToken, ^{        network = [[self alloc] init];    });    return network;}-(NSString*)JiangSuApiCacheFileName:(NSString*)fileName{        NSString * cacheFolder = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];    cacheFolder = [cacheFolder stringByAppendingPathComponent:@"JiangSu"];        NSFileManager * fmgr = [NSFileManager defaultManager];    if (![fmgr fileExistsAtPath:cacheFolder])    {        NSError * error;        [fmgr createDirectoryAtPath:cacheFolder withIntermediateDirectories:YES attributes:nil error:&error];    }    cacheFolder = [cacheFolder stringByAppendingPathComponent:fileName];    return cacheFolder;}-(NSDictionary*)getURLFromPlistWithKey:(NSString*)plKey{    NSString *path = [[NSBundle mainBundle] pathForResource:@"JiangSuURL" ofType:@"plist"];    NSDictionary *urlDic = [NSDictionary dictionaryWithContentsOfFile:path];    return ASDynamicCast(NSDictionary, [urlDic valueForKey:plKey]);}//網路請求方式--因為是單例所有傳遞的值要不同  必須加connectId-(void)JSNetWorkWith:(int)connectID Body:(NSString*)bodyString PostBody:(NSString*)postBody Delegate:(id)aDelegate{    //判斷是否連網    if (![self isConnectNetWork]) {        UIAlertView *myalert = [[UIAlertView alloc] initWithTitle:nil message:@"請串連網路後再使用" delegate:self cancelButtonTitle:@"確定" otherButtonTitles:nil];        myalert.tag = 0x9999;        [myalert show];        [myalert release];        if (aDelegate && [aDelegate respondsToSelector:@selector(NetWorkBackConnectID:BackString:WithNetState:)]) {            [aDelegate NetWorkBackConnectID:connectID BackString:nil WithNetState:0];        }        return;      }        if ([bodyString hasPrefix:@"http"] == NO) {        bodyString = [NSString stringWithFormat:@"%@/%@",HTTPURLPREFIX,bodyString];            }    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString:bodyString]];    [request setDelegate:self];    request.timeOutSeconds = 20;    [request setRequestMethod:@"POST"];    [request addRequestHeader:@"Content-Type" value:@"application/xml;charset=UTF-8;"];        NSArray *aa = [postBody componentsSeparatedByString:@"&"];    for (NSString *str in aa) {        NSArray *bb = [str componentsSeparatedByString:@"="];        [request setPostValue:[bb objectAtIndex:1] forKey:[bb objectAtIndex:0]];    }        //傳遞參數    [request setUserInfo:[NSDictionary dictionaryWithObjectsAndKeys:[NSString stringWithFormat:@"%d",connectID],@"tag",aDelegate,@"target", nil]];        [request startAsynchronous];}//請求成功- (void)requestFinished:(ASIHTTPRequest *)request{     NSDictionary *userInfo = [request userInfo];    id delegate = [userInfo objectForKey:@"target"];    int conTag = [[userInfo objectForKey:@"tag"] intValue];    NSLog(@"\n成功  地址:%@  \n ConnectId = %d   結果 = %@",[[request url] absoluteString],conTag,[request responseString]);        NSString *responseString = [request responseString];        //    if ([responseString hasPrefix:@"" withString:xmlHeader];//        //        UseXmlParser *xmlParser = [[UseXmlParser alloc] initWithParserData:[responseString dataUsingEncoding:NSUTF8StringEncoding] target:delegate connectId:conTag];//        [xmlParser parser];//        [xmlParser release];//    }else{        NSLog(@"%@",[responseString JSONValue]);                //得到資料來源，通過代理返回        if (delegate && [delegate respondsToSelector:@selector(NetWorkBackConnectID:BackString:WithNetState:)]) {            [delegate NetWorkBackConnectID:conTag BackString:responseString WithNetState:0];        }        //    }}//請求失敗- (void)requestFailed:(ASIHTTPRequest *)request{    NSLog(@"錯誤資訊:%@",[request error]);    NSDictionary *userInfo = [request userInfo];    id delegate = [userInfo objectForKey:@"target"];#pragma unused(delegate)    int conTag = [[userInfo objectForKey:@"tag"] intValue];    NSLog(@"\n失敗  地址:%@  \n ConnectId = %d   結果 = %@",[[request url] absoluteString],conTag,[request responseString]);        if (delegate && [delegate respondsToSelector:@selector(NetWorkBackConnectID:BackDic:WithNetState:)]) {        [delegate NetWorkBackConnectID:conTag BackDic:nil WithNetState:0];    }    if (delegate && [delegate respondsToSelector:@selector(NetWorkBackConnectID:BackString:WithNetState:)]) {        [delegate NetWorkBackConnectID:conTag BackString:@"" WithNetState:0];    }    UIAlertView *av = [[UIAlertView alloc] initWithTitle:@"" message:@"資料請求失敗" delegate:self cancelButtonTitle:@"確定" otherButtonTitles:nil, nil];    [av show];    [av release];}// 判斷是否連網-(BOOL)isConnectNetWork{    BOOL isExistenceNetwork = YES;    Reachability *r = [Reachability reachabilityWithHostName:@"www.baidu.com"];    switch ([r currentReachabilityStatus]) {        case NotReachable:            isExistenceNetwork=NO;            NSLog(@"沒有網路");            break;        case ReachableViaWWAN:            isExistenceNetwork=YES;            NSLog(@"正在使用3G網路");            break;        case ReachableViaWiFi:            isExistenceNetwork=YES;            NSLog(@"正在使用wifi網路");            break;    }    return isExistenceNetwork;}//彈出WiFi- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{    if (alertView.tag == 0x9999) {        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=WIFI"]];//        exit(0);    }}@end

#pragma  mark -請求資訊-(void)RentNewsRequest{    NSString *ss = [NSString stringWithFormat:@"szzssw/taxCommon.action?code=1001&pagecode=%d&menucode=0300000000",NewsView.pageCode == 0 ? 1 : NewsView.pageCode];    [[JSNetWork shareNetWork] JSNetWorkWith:100 Body:ss PostBody:nil Delegate:self];    //先充緩衝裡面去讀取    NSString *cachestr=[self readApiCacheFileName:@"地稅新聞列表.txt"];    //只是對上拉資訊，讀取緩衝    if(cachestr.length>0 &&NewsView.pageCode==1){        [self NetWorkBackConnectID:100 BackString:cachestr WithNetState:0];    }}#pragma  mark -資料完成資訊- (void)NetWorkBackConnectID:(int)connectID BackString:(NSString *)aBackString WithNetState:(int)netState{    NewsView.aTable.pullTableIsRefreshing=YES;    NewsView.aTable.pullTableIsLoadingMore=YES;    NewsView.aTable.pullTableIsRefreshing=NO;    NewsView.aTable.pullTableIsLoadingMore=NO;    if(connectID==100){             NSDictionary *jsonDic=ASDynamicCast(NSDictionary, [aBackString JSONValue]);        //根據請求的內容判斷請求是否成功        if (![[jsonDic getStringByKey:@"dealcode"] isEqualToString:@"0000"]) {            NSLog(@"請求失敗-->%@",[jsonDic getStringByKey:@"dealmsg"]);            return;        }                //如果是上拉,進行緩衝      if (NewsView.pageCode==1) {         [self saveApiCacheFileName:@"地稅新聞列表.txt" textContent:aBackString Append:NO];      }        if (NewsView.dataArray.count>0 &&NewsView.pageCode==1) {            [NewsView.dataArray removeAllObjects];//向下拉只顯示20條，下拉只顯示就疊加        }              NSArray *contentArray=ASDynamicCast(NSDictionary, [aBackString JSONValue])[@"content"];      [NewsView.dataArray addObjectsFromArray:contentArray];       [NewsView.aTable reloadData];    }    }