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Difference between socket and websocket?
...cting to Application Server over a protocol similar to HTTP that runs over TCP/IP. So they are primarily for Web Applications that require a permanent connection to its server. On the other hand, plain sockets are more powerful and generic. They run over TCP/IP but they are not restricted to browser...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
...
TEST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = *<validhost>*)(PORT = *<validport>*))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = *<servicenamefromDB>*)
)
)
then I ran:
sqlplus user@TEST
Success!
The li...
difference between socket programming and Http programming
...point. Instead it relies on an underlying protocol which in HTTP's case is TCP.
You can read more about OSI layers if you are interested.
Sockets on the other hand are an API that most operating systems provide to be able to talk with the network. The socket API supports different protocols from...
HTTPS connections over proxy servers
...ou are contacting, i.e. no proxies. Normally, you use CONNECT to open up a TCP connection through the proxy. In this case, the proxy will not be able to cache, read, or modify any requests/responses, and therefore be rather useless.
If you want the proxy to be able to read information, you can take...
leancloud云存储(LeanDB)如何接入App Inventor 2？ - App Inventor 2 中文...
...语言的接入，而App Inventor 2由于没有专用组件，可以选择使用Java/Kotlin开发拓展接入，也能采用更通用的 curl 方式接入：
使用 “Web客户端”组件：
这个AI2组件几乎等同于通用的 curl 命令，能完成数据的 Post，Get，文本，二...
Debug Error \"pure virtual function call\" 原因解析 - 更多技术 - 清泛...
...常而未完全销毁，从而遗留下一个"次品"对象，程序继续使用此次品对象而调用到纯虚函数：
class Base
{
public:
~Base(){throw 0;} // . . . a)
virtual void virtualFunc() = 0;
};
class Derived: public Base
{
public:
virtual void virtualFunc(){}
};
Ba...
MySQL connection not working: 2002 No such file or directory
...t is bound to the use of Unix domain sockets. It is not possible to open a TCP/IP connection using the hostname localhost you must use 127.0.0.1 instead." - php.net/manual/en/mysqli.quickstart.connections.php. So basically something is not working with connecting to the Unix domain sockets that allo...
MFC RadioButton用法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
MFC RadioButton用法详解基础介绍：radiobutton通常都是成组使用的，在一组里面是互斥的。分组的原则是：1、首先将RadioButton控件定好Tab顺序，具体方法：工具栏格...基础介绍：
radio button通常都是成组使用的，在一组里面是互斥的...
How to kill a process running on particular port in Linux?
...
This fuser 8080/tcp will print you PID of process bound on that port.
And this fuser -k 8080/tcp will kill that process.
Works on Linux only. More universal is use of lsof -i4 (or 6 for IPv6).
...
what happens when you type in a URL in browser [closed]
...kes a DNS lookup and replies the IP address to the browser
browser opens a TCP connection to server (this step is much more complex with HTTPS)
browser sends the HTTP request through TCP connection
browser receives HTTP response and may close the TCP connection, or reuse it for another request
brows...