如何使用 Java 从服务器端的特定 URL 获取 HTML 内容？
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How can I get HTML content from a specific URL on server side by using Java?
提问by Arthur Ronald
I am designing an application that needs to load HTML content from a specific URL on server side by using Java. How can I solve it?
我正在设计一个需要使用 Java 从服务器端的特定 URL 加载 HTML 内容的应用程序。我该如何解决？
Regards,
问候，
回答by David Tinker
I have used the Apache Commons HttpClient library to do this. Have a look here: http://hc.apache.org/httpclient-3.x/tutorial.html
我使用了 Apache Commons HttpClient 库来做到这一点。看看这里：http: //hc.apache.org/httpclient-3.x/tutorial.html
It is more feature rich than the JDK HTTP client support.
它比 JDK HTTP 客户端支持功能更丰富。
回答by Hamza Yerlikaya
If all you need is read the url you do not need to resort to third party libraries, java has built in support to retrieve urls.
如果您只需要读取 url，则不需要求助于第三方库，java 内置了对检索 url 的支持。
import java.net.*;
import java.io.*;
public class URLConnectionReader {
public static void main(String[] args) throws Exception {
URL yahoo = new URL("http://www.yahoo.com/");
URLConnection yc = yahoo.openConnection();
BufferedReader in = new BufferedReader(
new InputStreamReader(
yc.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null)
System.out.println(inputLine);
in.close();
}
}
回答by Anthony
If it was php, you could use cURL, but since it's java, you would use HttpURLConnection, as I just found out on this question:
如果是 php，您可以使用cURL，但由于它是 java，您将使用HttpURLConnection，正如我刚刚在这个问题上发现的：
回答by Vaibs
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.net.MalformedURLException; import java.net.URL; import java.net.URLConnection;
导入 java.io.BufferedReader; 导入 java.io.IOException; 导入 java.io.InputStreamReader; 导入 java.net.MalformedURLException; 导入 java.net.URL; 导入 java.net.URLConnection;
public class URLConetent{ public static void main(String[] args) {
公共类 URLConetent{ public static void main(String[] args) {
URL url;
try {
// get URL content
String a="http://localhost:8080//TestWeb/index.jsp";
url = new URL(a);
URLConnection conn = url.openConnection();
// open the stream and put it into BufferedReader
BufferedReader br = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String inputLine;
while ((inputLine = br.readLine()) != null) {
System.out.println(inputLine);
}
br.close();
System.out.println("Done");
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
