string(317) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%85%8D%E7%BD%AE%E4%BA%86%E7%8E%AF%E5%A2%83%E5%8F%98%E9%87%8Fjavac%E4%B8%8D%E6%98%AF%E5%86%85%E9%83%A8%E5%91%BD%E4%BB%A4%E6%80%8E%E4%B9%88%E5%8A%9E => Failed to connect to 101.89.159.206 port 38100: Connection refused"
配置了环境变量javac不是内部命令怎么办
