openConnection（）未定义 [英] openConnection() Not defined

问题描述

嗨


url.openConnection（）的问题是未定义的，对java来说是完全新的，这里是我上网的示例代码：

< br $>

 HttpURLConnection connection = null; 
 字符串 semifinalUrlString =   http：// www.google.com /; 
 URL url =  new  URL（semifinalUrlString）; 
 connection =（HttpURLConnection）url.openConnection（）; 
 connection.connect（）; 

获取openConnection（）我错过了什么？

解决方案

一个可能的原因可能是缺少正确的导入。必须有以下导入：

  import  java.io.BufferedReader; 
  import  java.io.InputStream; 
  import  java.io.InputStreamReader; 
   import  java.net.URL;  

欲了解更多信息可以在这里看一下讨论：

http://stackoverflow.com/questions/9977221/open-url-in-java-to-get-the-content [ ^ ]



Hope该问题将得到解决，如果没有，请用新的错误消息更新我们。感谢。

Hi
Problem with url.openConnection() is undefined and am completly new to java, here is a sample code i got online :

HttpURLConnection connection = null;       
		String semifinalUrlString = "http://www.google.com/";  
		URL url = new URL(semifinalUrlString);      
		connection = (HttpURLConnection)url.openConnection();      
		connection.connect(); 

What am I missing to get the openConnection()?

解决方案

One possible reason may be missing proper imports. There must be imports like:

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;

For more you can have a look on discussion here:
http://stackoverflow.com/questions/9977221/open-url-in-java-to-get-the-content[^]

Hope that issue will be resolved, if not please update us with new error message u get. Thanks.

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