string(316) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88java%E7%8E%AF%E5%A2%83%E5%8F%98%E9%87%8F%E9%85%8D%E7%BD%AE%E6%80%BB%E5%A4%B1%E8%B4%A5%E7%9A%84%E5%8E%9F%E5%9B%A0%E6%98%AF => Failed to connect to 101.89.117.144 port 38056: Connection refused"
为什么java环境变量配置总失败的原因是
