发送POST请求代码---java转oc/c++

     前一段时间做的一个移植项目，做个笔记。

/** * 发送POST请求（以NAME-VALUE格式组织JSON对象） * @param paramName：JSON参数名称 * @param param：JSON参数对象 */public static JSONObject httpPost(String url, String paramName, JSONObject param){//使用NameValuePair来保存要传递的Post参数ArrayList<NameValuePair> paramList = new ArrayList<NameValuePair>();//添加要传递的参数String str = param.toString();paramList.add(new BasicNameValuePair(paramName,/* param.toString()*/str));String s = paramList.toString();//发送POST请求（NAME-VALUE格式），返回JSON对象return httpPost(url,paramList);}/** * 发送POST请求（NAME-VALUE格式） */public static JSONObject httpPost(String url, ArrayList<NameValuePair> paramList){try{//HttpPost对象声明HttpPost httpPost = new HttpPost(url);//设置字符集httpPost.setEntity(new UrlEncodedFormEntity(paramList,HTTP.UTF_8));//取得HttpClient对象HttpClient httpClient = new DefaultHttpClient();//请求HttpCLient，取得HttpResponseString s = httpPost.toString();HttpResponse httpRes = httpClient.execute(httpPost);//请求成功if(httpRes.getStatusLine().getStatusCode() == HttpStatus.SC_OK){//取得返回的字符串String json = EntityUtils.toString(httpRes.getEntity());//计数器清零timeoutCnt = 0;//返回JSON对象return new JSONObject(json);}}catch(Exception e){e.printStackTrace();}//返回[访问服务器异常]JSON对象return clientExceptionJsonObject();}

用扩展后的NSMutableArray*代替java的JSONArray，NSMutableDictionary*代替java的JSONObject。转换成oc代码如下：

扩展后的NSMutableArray，NSMutableDictionary代码：

typedef NSMutableArray* JSONArray;typedef NSMutableDictionary* JSONObject;pthread_mutex_t mutex3=PTHREAD_MUTEX_INITIALIZER;//用于网络连接

/** * HTTP通讯 */@interface NSMutableArray(JSONArray1)-(int)length;-(void)putt:(NSMutableDictionary*)json;-(NSMutableDictionary*)getJSONObject:(int)index;@end@implementation NSMutableArray(JSONArray1)-(int)length{    return [self count];}-(void)putt:(NSMutableDictionary*)json{    [self addObject:json];}-(NSMutableDictionary*)getJSONObject:(int)index{    return (NSMutableDictionary*)[self objectAtIndex:index];}@end@interface NSMutableDictionary(JSONCategories)+(NSMutableDictionary*)dictionaryWithContentsOfJSONURLString:(NSString*)urlAddress;+(NSMutableDictionary*)dictionaryWithContentsOfData:(NSData*)data;-(NSString*)getString:(NSString*)key;-(int)getInt:(NSString*)key;-(double)getDouble:(NSString*)key;-(void)putt:(id)value forKey:(id)key;-(NSMutableArray*)getJSONArray:(NSString*)json;//+(NSDictionary*)httpPost:(NSString*)nUrl name:(NSString*)paramNsName json:(NSDictionary*)jsonParam;+(NSData*)toJSON;@end@implementation NSMutableDictionary(JSONCategories)+(NSMutableDictionary*)dictionaryWithContentsOfJSONURLString:(NSString*)urlAddress{    NSData* data =[NSData dataWithContentsOfURL:[NSURL URLWithString: urlAddress]];    //NSData* data = [NSData dataWithContentsOfURL:[NSURL URLWithString:urlAddress options: error:    __autoreleasing NSError* error =nil;    id result =[NSJSONSerialization JSONObjectWithData:data                                               options:kNilOptions error:&error];    if(error !=nil)return nil;    return result;}-(NSString*)getString:(NSString*)key{    return (NSString*)[self objectForKey:key];}-(int)getInt:(NSString *)key{    return [((NSString*)[self objectForKey:key]) intValue];}-(double)getDouble:(NSString *)key{    return [((NSString*)[self objectForKey:key]) doubleValue];}-(void)putt:(id)value forKey:(id)key{    return [self setObject:value forKey:key];}-(NSMutableArray*)getJSONArray:(NSString*)json{    return (NSMutableArray*)[self objectForKey:json]; }+(NSMutableDictionary*)dictionaryWithContentsOfData:(NSData*)data{    NSDictionary* dict =[data objectFromJSONData];    NSArray* keys = [dict allKeys];    NSArray* values = [dict allValues];    return [NSDictionary dictionaryWithObjects:values forKeys:keys];    return nil;}

//用oc实现上面java代码，还没添加线程锁//+(NSDictionary*)httpPost:(NSString*)nUrl name:(NSString*)paramNsName json:(NSDictionary*)jsonParam//{ //    NSDictionary* dict = [NSDictionary dictionaryWithObject:jsonParam forKey:paramNsName];//    NSData* param = [dict toJSON];//    //    NSURL* url1 = [NSURL URLWithString:nUrl];//    NSMutableURLRequest* request= [NSMutableURLRequest requestWithURL:url1];     //    [request setHTTPMethod:@"POST"]; //    //[request setTimeoutInterval:20.0f];//    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];//    [request setHTTPBody:param];//    NSURLResponse* response;//    NSData* dataReply = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:nil];     //    [jsonParam release];//    //    if(nil !=response)//    {//        int statusCode = [(NSHTTPURLResponse*) response statusCode];//        NSLog(@"HTTP Status code:%d",statusCode);//        if(statusCode==200&&dataReply!=nil)//        {//            //timeoutCnt = 0;//            NSDictionary* ret = [NSMutableDictionary dictionaryWithContentsOfData:dataReply];//            [ret retain];//            return ret;//        }//    }//    return  nil;//}+(NSData*)toJSON{    NSError* error =nil;    id result =[NSJSONSerialization dataWithJSONObject:self options:kNilOptions error:&error];    if(error !=nil)return nil;    return result;}

//用c++实现java代码，功能与上面注释的代码一样

static JSONObject httpPost(String url, String paramName, JSONObject jsonParam){         pthread_mutex_lock(&mutex3);//添加线程锁        NSString* paramNsName = [NSString stringWithUTF8String:paramName.c_str()];        NSData* data = toJSON(jsonParam);           NSString* ss = [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];        NSString* ns = [NSString stringWithFormat:@"%@=%@",paramNsName,ss];        [ss release];                NSData* param = [ns dataUsingEncoding:NSUTF8StringEncoding];        NSString* nUrl = [NSString stringWithUTF8String:url.c_str()];        NSURL* url1 = [NSURL URLWithString:nUrl];        NSMutableURLRequest* request= [NSMutableURLRequest requestWithURL:url1];             [request setHTTPMethod:@"POST"];         //[request setTimeoutInterval:20.0f];        [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];        [request setHTTPBody:param];        NSURLResponse* response;        NSData* dataReply = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:nil];             [jsonParam release];//释放调用者传进来的对象，忌讳，还须改进                if(nil !=response)        {            int statusCode = [(NSHTTPURLResponse*) response statusCode];            NSLog(@"HTTP Status code:%d",statusCode);            if(statusCode==200&&dataReply!=nil)            {                //NSLog(@"Reply Date length:%d",dataReply.length);                timeoutCnt = 0;                JSONObject ret = [NSMutableDictionary dictionaryWithContentsOfData:dataReply];                [ret retain];                pthread_mutex_unlock(&mutex3);                return ret;            }        }        pthread_mutex_unlock(&mutex3);        return clientExceptionJsonObject();}