zoukankan      html  css  js  c++  java
  • webmagic创始人回答:ebMagic默认的HttpClient只会用TLSv1去请求,对于某些只支持TLS1.2的站点(例如 https://juejin.im/) ,就会报错:

    见官方文档解决方案:https://github.com/code4craft/webmagic/issues/701

    webmagic创始人回答:

     code4craft commented on 29 Nov 2017 •
    
    更新会在0.7.4版本发布。
    
    临时适配方式,修改HttpClientGenerator中的buildSSLConnectionSocketFactory方法,
    
    return new SSLConnectionSocketFactory(createIgnoreVerifySSL(), new String[]{"SSLv3", "TLSv1", "TLSv1.1", "TLSv1.2"},
                        null,
                        new DefaultHostnameVerifier())
    WebMagic默认的HttpClient只会用TLSv1去请求,对于某些只支持TLS1.2的站点(例如 https://juejin.im/) ,就会报错:
    
    javax.net.ssl.SSLException: Received fatal alert: protocol_version
    	at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
    	at sun.security.ssl.Alerts.getSSLException(Alerts.java:154)
    	at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023)
    	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125)
    	at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
    	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
    	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
    	at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394)
    	at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353)
    	at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141)
    	at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
    	at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
    	at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
    	at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
    	at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
    	at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
    	at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
    	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
    	at us.codecraft.webmagic.downloader.HttpClientDownloader.download(HttpClientDownloader.java:85)
    
    现在的修改方式是在HttpClientGenerator中构建SSLConnectionSocketFactory时加上支持。
    
    做产品的程序,才是好的程序员!
  • 相关阅读:
    MYSQL查看数据表最后更新时间
    linux在终端模拟软件实现文件上传下载
    yum常用操作
    释放Linux占用端口
    CentOS7.3编译安装MariaDB10.2.6
    CentOS7编译安装Nginx1.10.1
    Linux系统安装ActiveMQ时遇到服务无法启动的问题
    需求分析读书笔记(一)
    实用地址分享
    元素居中汇总
  • 原文地址:https://www.cnblogs.com/asplover/p/12491454.html
Copyright © 2011-2022 走看看