NotFound

HelloHttpClientNotFoundMain

存在しないファイルURLにアクセスしたとき

■コード

package hello.org.apache.commons.httpclient;

import java.io.IOException;

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.HttpException;

import org.apache.commons.httpclient.HttpMethod;

import org.apache.commons.httpclient.HttpStatus;

import org.apache.commons.httpclient.methods.GetMethod;

public class HelloHttpClientNotFoundMain {

public static void main(String[] args) {

String urlNotExists = "http://www.apache.org/notexists";

HttpClient client = new HttpClient();

// not throws Exception but response is 404

HttpMethod method = new GetMethod(urlNotExists);

try {

int res = client.executeMethod(method);

if (res == HttpStatus.SC_NOT_FOUND) {

System.err.println("not found.");

}

byte[] responseBody = method.getResponseBody();

System.out.println(new String(responseBody));

} catch (HttpException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

} finally {

method.releaseConnection();

client.getHttpConnectionManager().closeIdleConnections(0);

}

■結果

not found.

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">

<title>404 Not Found</title>

</head><body>

<h1>Not Found</h1>

<p>The requested URL /notexists was not found on this server.</p>

<hr>

<address>Apache/2.3.8 (Unix) mod_ssl/2.3.8 OpenSSL/1.0.0a Server at www.apache.org Port 80</address>

</body></html>