jsoup-提示java.net.SocketTimeoutException:Read timed out

使用Jsoup.connect(url).get()连接某网站时偶尔会出现

java.net.SocketTimeoutException:Read timed out异常。

原因是默认的Socket的延时比较短,而有些网站的响应速度比较慢,所以会发生超时的情况。

解决方法:

链接的时候设定超时时间即可。

doc = Jsoup.connect(url).timeout(5000).get();

5000表示延时时间设置为5s。

测试代码如下:

1,不设定timeout时:

package jsoupTest;  
  
import java.io.IOException;  
  
import org.jsoup.*;  
import org.jsoup.helper.Validate;  
import org.jsoup.nodes.Document;  
import org.jsoup.nodes.Element;  
import org.jsoup.select.Elements;  
  
public class JsoupTest {  
    public static  void main(String[] args) throws IOException{  
    String url = "http://www.weather.com.cn/weather/101010400.shtml";  
    long start = System.currentTimeMillis();  
    Document doc=null;  
    try{  
        doc = Jsoup.connect(url).get();  
    }  
    catch(Exception e){  
        e.printStackTrace();  
    }  
    finally{  
        System.out.println("Time is:"+(System.currentTimeMillis()-start) + "ms");  
    }  
    Elements elem = doc.getElementsByTag("Title");  
    System.out.println("Title is:" +elem.text());  
    }     
}  

有时发生超时:

java.net.SocketTimeoutException: Read timed out

2,设定了则一般不会超时

package jsoupTest;  
  
import java.io.IOException;  
  
import org.jsoup.*;  
import org.jsoup.helper.Validate;  
import org.jsoup.nodes.Document;  
import org.jsoup.nodes.Element;  
import org.jsoup.select.Elements;  
  
public class JsoupTest {  
    public static  void main(String[] args) throws IOException{  
    String url = "http://www.weather.com.cn/weather/101010400.shtml";  
    long start = System.currentTimeMillis();  
    Document doc=null;  
    try{  
        doc = Jsoup.connect(url).timeout(5000).get();  
    }  
    catch(Exception e){  
        e.printStackTrace();  
    }  
    finally{  
        System.out.println("Time is:"+(System.currentTimeMillis()-start) + "ms");  
    }  
    Elements elem = doc.getElementsByTag("Title");  
    System.out.println("Title is:" +elem.text());  
    }     
}  
原文地址:https://www.cnblogs.com/hwaggLee/p/4738762.html