代码

https://www.cnblogs.com/colder/p/16612582.html

httpClient = HttpClients.custom().setDefaultRequestConfig(config).setConnectionReuseStrategy(NoConnectionReuseStrategy.INSTANCE).setConnectionManager(poolingConnManager).build();

解决NoHttpResponseException问题
.setConnectionReuseStrategy(NoConnectionReuseStrategy.INSTANCE) = 禁止连接重用，每次请求不再链接复用，而是创建一个新的链接

https://blog.csdn.net/yzf279533105/article/details/126963611
https://blog.csdn.net/enweitech/article/details/79261439
https://www.cnblogs.com/yunnick/p/11290429.html
https://cloud.tencent.com/developer/article/1683704

检查参数

发出 GET 请求，服务器返回的内容会在命令行输出
curl "链接"
https://www.ruanyifeng.com/blog/2019/09/curl-reference.html

sysctl -a |grep "net.ipv4.tcp_tw_recycle"
sysctl -a |grep "net.netfilter.nf_conntrack_tcp_be_liberal"

https://blog.csdn.net/whatday/article/details/113427085
net.ipv4.tcp_tw_recycle = 1 表示开启TCP连接中TIME-WAIT sockets的快速回收，默认为0，表示关闭。应是0，而不是1

其他方案记录
https://blog.csdn.net/qq_35847021/article/details/115524923
https://blog.csdn.net/weixin_48184989/article/details/126153823
https://blog.csdn.net/flysun3344/article/details/81117403

https://www.cnblogs.com/zhouj850/p/13957713.html
https://zhuanlan.zhihu.com/p/130464111?utm_id=0
https://blog.csdn.net/weixin_46028606/article/details/120809449