Java 实例 - 获取 URL 响应头信息
Java 教程
· 2019-02-11 22:13:19
以下实例演示了如何获取指定 URL 的响应头信息：
Main.java 文件
import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import java.util.Map;
import java.util.Set;
public class Main {
public static void main(String[] args) throws IOException{
URL url = new URL("http://www.codercto.com");
URLConnection conn = url.openConnection();
Map headers = conn.getHeaderFields();
Set<String> keys = headers.keySet();
for( String key : keys ){
String val = conn.getHeaderField(key);
System.out.println(key+" "+val);
}
System.out.println( conn.getLastModified() );
}
}
以上代码运行输出结果为：
Transfer-Encoding chunked null HTTP/1.1 200 OK Server Tengine/1.3.0 Connection keep-alive Vary Cookie Date Mon, 04 May 2015 03:54:05 GMT X-Pingback http://www.codercto.com/xmlrpc.php X-Powered-By PHP/5.3.15 Content-Type text/html; charset=UTF-8
点击查看所有 Java 教程 文章: https://www.codercto.com/courses/l/12.html
Python for Data Analysis
Wes McKinney / O'Reilly Media / 2012-11-1 / USD 39.99
Finding great data analysts is difficult. Despite the explosive growth of data in industries ranging from manufacturing and retail to high technology, finance, and healthcare, learning and accessing d......一起来看看 《Python for Data Analysis》 这本书的介绍吧!
