样例代码
public static void getText(){
try {
Connection connect = Jsoup.connect("https://www.baidu.com/");
Document document = connect.get();
System.out.println(document.text());
} catch (Exception e) {
e.printStackTrace();
}
}
报错信息
Handler dispatch failed; nested exception is org.jsoup.UncheckedIOException: java.net.SocketTimeoutException: Read timeout] with root cause
原因
1.11.3版本前,这里继承的是Error
public class UncheckedIOException extends Error {
public UncheckedIOException(IOException cause) {
super(cause);
}
public IOException ioException() {
return (IOException) getCause();
}
}
1.11.3版本,这里继承的是Exception
public class UncheckedIOException extends RuntimeException {
public UncheckedIOException(IOException cause) {
super(cause);
}
public IOException ioException() {
return (IOException)this.getCause();
}
}
解决办法
方法1:(推荐)升级Jsoup版本到1.11.3(目前最新版本)
<!-- https://mvnrepository.com/artifact/org.jsoup/jsoup -->
<dependency>
<groupId>org.jsoup</groupId>
<artifactId>jsoup</artifactId>
<version>1.11.3</version>
</dependency>
方法2:try-catch
中加入catch error
建议方法1方法2 同时使用,本人长时间使用jsoup爬虫,在github上了解到,这个框架的开发人员目前也不清楚此bug的成因,已经将其标记为Unknown级别。
本人在爬数据过程中,也发现log中显示有时是catch到了exception,有时候则是catch到了error。
public static void getText(){
try {
Connection connect = Jsoup.connect("https://www.baidu.com/");
Document document = connect.get();
System.out.println(document.text());
} catch (Exception e) {
e.printStackTrace();
} catch (Error error){
error.printStackTrace();
}
}