我使用HttpURLConnection連接到一個網站,并收到一個ResponseCode = 404(HTTP_NOT_FOUND).但是,我的瀏覽器(IE)中打開網站沒有問題.

為什么有區別,我能做些什么呢？

問候,帕潘

這是我的節目

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.net.HttpURLConnection;

import java.net.URL;

import java.net.URLConnection;

public class TestGet {

private static URL source;

public static void main(String[] args) {

doGet();

}

public static void doGet() {

try {

source = new URL("http://localhost:8080/");

System.out.println("Url is" + source.toString());

URLConnection connection = source.openConnection();

connection.setRequestProperty("User-Agent","Mozilla/5.0 ( compatible ) ");

connection.setRequestProperty("Accept","*/*");

connection.setDoInput(true);

connection.setDoOutput(true);

System.out.println(((HttpURLConnection) connection).getResponseCode());

BufferedReader rdr = new BufferedReader(new InputStreamReader(

connection.getInputStream()));

StringBuffer b = new StringBuffer();

String line = null;

while (true) {

line = rdr.readLine();

if (line == null)

break;

b.append(line);

}

} catch (Exception e) {

e.printStackTrace();

System.err.println(e.toString());

}

}

}

堆棧跟蹤

Url ishttp://localhost:8080/

404

java.io.FileNotFoundException: http://localhost:8080/

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

at java.lang.reflect.Constructor.newInstance(Unknown Source)

at sun.net.www.protocol.http.HttpURLConnection$6.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at sun.net.www.protocol.http.HttpURLConnection.getChainedException(Unknown Source)

at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)

at TestGet.doGet(TestGet.java:28)

at TestGet.main(TestGet.java:11)

Caused by: java.io.FileNotFoundException: http://localhost:8080/

at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)

at java.net.HttpURLConnection.getResponseCode(Unknown Source)

at TestGet.doGet(TestGet.java:26)

... 1 more

java.io.FileNotFoundException: http://localhost:8080/

超強干貨來襲 云風專訪：近40年碼齡，通宵達旦的技術人生

總結

以上是生活随笔為你收集整理的java消费者中url找不到,java – URL可以使用浏览器访问,但是仍然是具有URLConnection的FileNotFoundException...的全部內容，希望文章能夠幫你解決所遇到的問題。

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