JSON解析例子

int CAsyncTCPServer::AnalyzeHttpJson(const char *buffer,int len)
{
	char *DevInfoBuffer = NULL;
	DevInfoBuffer = new char[len+1];
	assert(DevInfoBuffer != NULL);
	memset(DevInfoBuffer,0x00,len+1);
	strncpy(DevInfoBuffer, buffer, len);

	cJSON* AnalyJson = cJSON_Parse(DevInfoBuffer);
	if(!AnalyJson){
		return -1;
	}

	std::string sUID = "";
	std::string	Dev = "";

	if (AnalyJson)
	{
		cJSON* ChildJson = AnalyJson->child;
		while (ChildJson)
		{
			if (0 == strcmp(ChildJson->string,"devInfo"))
			{
				cJSON* AnalyJsonParam =  cJSON_GetObjectItem(AnalyJson,"devInfo");
				if (AnalyJsonParam)
				{
					cJSON* ChildJsonParam = AnalyJsonParam->child;
					while (ChildJsonParam)
					{
						if (0 == strcmp(ChildJsonParam->string,"GUID"))
						{
							sUID = ChildJsonParam->valuestring;
						}
						if (0 == strcmp(ChildJsonParam->string,"devStaticInfo"))
						{
							cJSON *DevStaticInfoJson=cJSON_GetObjectItem(AnalyJsonParam,"devStaticInfo"); 
							if (DevStaticInfoJson)
							{
								cJSON *item=cJSON_GetObjectItem(DevStaticInfoJson,"IP");
								if (0 == strcmp(item->string,"IP"))
								{
									//strncpy(TextBroad.sIP,item->valuestring,strlen(item->valuestring));
								}
							}
						}
						ChildJsonParam = ChildJsonParam->next;
					}
				}
			}
			ChildJson = ChildJson->next;
		}
	}

	if (DevInfoBuffer)
	{
		delete []DevInfoBuffer;
		DevInfoBuffer = NULL;
	}
	if (AnalyJson)
	{
		cJSON_Delete(AnalyJson);
	}
	return 0;
}