本文介绍了JSoup检索URL不起作用的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
I have a URL and I use JSoup to retieve web page indicated by this url.
try{
doc = Jsoup.connect(url).timeout(5000).get();
}catch(IOException e){
e.printStackTrace();
}
但是我得到以下异常:
Exception in thread "main" java.lang.IllegalArgumentException: Must supply a valid URL
at org.jsoup.helper.Validate.notEmpty(Validate.java:102)
at org.jsoup.helper.HttpConnection.url(HttpConnection.java:48)
at org.jsoup.helper.HttpConnection.connect(HttpConnection.java:24)
at org.jsoup.Jsoup.connect(Jsoup.java:59)
检查以下内容:
url
变量.url
variable. Jsoup的Validate.java中的方法notEmpty
检查Url是否为空.
The Method notEmpty
in Validate.java of Jsoup checks if the Url is not empty.
public static void notEmpty(String string) {
if (string == null || string.length() == 0)
throw new IllegalArgumentException("String must not be empty");
}
这篇关于JSoup检索URL不起作用的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!