URLConnection.openConnection（）和URLConnection.connect（）之间的区别？ [英] Difference between URLConnection.openConnection() and URLConnection.connect()?

问题描述

在code：

  HttpURLConnection的连接=（HttpURLConnection类）createMerchURL.openConnection（）;
connection.setRequestMethod（PUT）;
connection.addRequestProperty（姓名，值1）;connection.connect（）;..
connection.disconnect（）;
 

• 在该连接越来越竟开？在 .. createMerchURL.openConnection（）; ？或者在 connection.connect（）;




• 如何在连接对象设定网址和使用connection.connect（） ？（因为我与 .openConnection不太舒服（））

最后，是两者之间有什么区别呢？

谢谢..

解决方案

  

当连接越来越竟开？在..createMerchURL.openConnection（）; ？或connection.connect（）;

后者。前者只是解析URL，认定该协议，并创建 HttpURLConnection类对象。

  

我怎么可以在连接对象设定网址

您不能。

  

和与connection.connect使用（）？

您不能。

  

（因为我有.openConnection不太舒服（））

坏运气：获得舒适与它

。

In the code:

HttpURLConnection connection = (HttpURLConnection)createMerchURL.openConnection();
connection.setRequestMethod("PUT");
connection.addRequestProperty("Name", "Value1");

connection.connect();

..
connection.disconnect();

• When is the connection getting opened actually? At ..createMerchURL.openConnection(); ? or at connection.connect();?

• How can I set URL in the connection Object and use it with connection.connect()?(as I am less comfortable with .openConnection())

Finally, is there any difference between the two?

Thanks..

解决方案

When is the connection getting opened actually? At ..createMerchURL.openConnection(); ? or at connection.connect();?

The latter. The former just parses the URL, finds the protocol, and creates the HttpURLConnection object.

How can I set URL in the connection Object

You can't.

and use it with connection.connect()?

You can't.

(as I am less comfortable with .openConnection())

Bad luck: get comfy with it.

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