我正在使用Java和HttpURLConnection编写一个Web爬虫,这是我得到的错误:
java.io.IOException: Server returned HTTP response code: 406 for URL: https://www.mkyong.com/kotlin/kotlin-how-to-loop-a-map/
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
at testing.HttpURLConnectionGo.sendGet(HttpURLConnectionGo.java:34)
at testing.DefinitelyNotSpiderLeg.crawl(DefinitelyNotSpiderLeg.java:55)
at testing.DefinitelyNotSpider.search(DefinitelyNotSpider.java:33)
at testing.Test.main(Test.java:9)
这是我用于连接的方法:
// HTTP GET request
public String sendGet(String url) throws Exception {
URL obj = new URL(url);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
// optional default is GET
con.setRequestMethod("GET");
//add request header
con.setRequestProperty("User-Agent", USER_AGENT);
BufferedReader in = new BufferedReader(
new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
return response.toString();
}
然后我使用Jsoup在另一个类中获取String:
String html = http.sendGet(url);
Document doc = Jsoup.parse(html);
为什么我会收到此错误?