微信小程序 TLS 版本必须大于等于1.2问题解决
此问题最近在微信小程序开发中，比较常见。
在解决这个问题之前，我们需要了解一下，当前的系统环境是否支持TLS1.2以上，可以参考一下表格：
请先确认系统支持TLS1.2以后，进行一下操作：（如不支持请升级系统到支持版本）
windows2008R2在配置SSL做小程序开发时候提示小程序的TLS版本必须大于等于1.2。
解决方法：
请先备份导出HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocols的值。如图：
将以下代码，保存到一个txt文件，然后修改后缀.reg，双击执行即可，完成这一步后，重启服务器。
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocols] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsMulti-Protocol Unified Hello] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsMulti-Protocol Unified HelloClient] "Enabled"=dword:00000000 "DisabledByDefault"=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsMulti-Protocol Unified HelloServer] "Enabled"=dword:00000000 "DisabledByDefault"=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsPCT 1.0] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsPCT 1.0Client] "Enabled"=dword:00000000 "DisabledByDefault"=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsPCT 1.0Server] "Enabled"=dword:00000000 "DisabledByDefault"=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 2.0] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 2.0Client] "DisabledByDefault"=dword:00000001 "Enabled"=dword:00000000 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 2.0Server] "Enabled"=dword:00000000 "DisabledByDefault"=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 3.0] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 3.0Client] "Enabled"=dword:00000000 "DisabledByDefault"=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 3.0Server] "Enabled"=dword:00000000 "DisabledByDefault"=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.0] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.0Client] "Enabled"=dword:00000001 "DisabledByDefault"=dword:00000000 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.0Server] "Enabled"=dword:00000001 "DisabledByDefault"=dword:00000000 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.1] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.1Client] "DisabledByDefault"=dword:00000000 "Enabled"=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.1Server] "DisabledByDefault"=dword:00000000 "Enabled"=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.2] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.2Client] "DisabledByDefault"=dword:00000000 "Enabled"=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.2Server] "Enabled"=dword:00000001 "DisabledByDefault"=dword:00000000
下面网址用来检查tls问题
https://www.ssllabs.com/ssltest/analyze.html
参考网址：
安卓真机调试request:fail ssl hand shake error 报错，苹果没有问题。