如何使httpredirect工作无redirect循环

我有以下nginx conf文件，我想要的一切工作除了httpredirect到https的stream量。 当我将server_name example.com添加到将httpredirect到https的（第一个）服务器块时，浏览器中出现redirect循环错误。 我究竟做错了什么。 如何在不redirect循环的情况下将httpstream量redirect到https，同时保留wwwredirect到根域

 server { listen 80 default_server; listen [::]:80 default_server ipv6only=on; rewrite ^(.*) https://example.com$1 permanent; } server { server_name www.example.com; rewrite ^(.*) https://example.com$1 permanent; } server { server_name example.com; root /usr/share/nginx/html; index index.php index.html index.htm; ssl_certificate /root/cert_chain.crt; ssl_certificate_key /root/example.com.key; ssl_protocols TLSv1 TLSv1.1 TLSv1.2; ssl_prefer_server_ciphers on; ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH'; location ~* \.(?:ico|css|js|gif|jpe?g|png)$ { expires 30d; add_header Pragma public; add_header Cache-Control "public"; } location / { try_files $uri $uri/ =404; } location /balcony-covers/ { return 301 $scheme://$host/balcony-screens/; } error_page 404 /404/; error_page 500 502 503 504 /50x.html; location = /50x.html { root /usr/share/nginx/html; } } 

 server { listen 80; server_name example.com; return 301 https://www.example.com$request_uri; } server { listen 80; server_name www.example.com; return 301 https://www.example.com$request_uri; } 

 server { listen 443; server_name www.example.com; ssl on; ssl_certificate /opt/nginx/example.com/certs/example.ca-bundle; ssl_certificate_key /opt/nginx/example.com/certs/private/example.key; ssl_session_timeout 5m; ssl_protocols SSLv2 SSLv3 TLSv1; ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP; ssl_prefer_server_ciphers on; location / { root /opt/nginx/example.com/public_html/www; index index.html index.htm index.php; } access_log /opt/nginx/example.com/logs/www/access.log main; location ~ \.php$ { root html; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /opt/nginx/example.com/public_html/www$fastcgi_script_name; include fastcgi_params; }