物聯網內存吃緊,跑JVM這種內存大戶肯定吃不消.
要跑還是跑C實現的服務,比如Nginx+PHP+SQLite.
比如一些家用無線路由器,系統是Linux發行版OpenWrt,內存只有64MB到128MB,單核580MHz.
而PHP內置HTTP服務器和SQLite數據庫,在無線路由器里對外提供HTTP服務絲毫沒有問題.
交叉編譯PHP也很簡單:
cd /opt/miwifi/src/php-7.1.5
CC=mipsel-openwrt-linux-uclibc-gcc \
AR=mipsel-openwrt-linux-uclibc-ar \
LD=mipsel-openwrt-linux-uclibc-ld \
RANLIB=mipsel-openwrt-linux-uclibc-ranlib \
STRIP=mipsel-openwrt-linux-uclibc-strip \
./configure \
--host=mipsel-openwrt-linux-uclibc \
--prefix=/opt/miwifi/php/7.1 \
--enable-cli \
--disable-cgi \
--disable-fpm \
--disable-phpdbg \
--disable-all \
--with-sqlite3 \
--with-pdo-sqlite \
--enable-json \
--enable-session \
--enable-mbstring \
--enable-bcmath
當然了,PHP還有Swoole這種網絡編程框架.
http://www.oschina.net/news/85126/top-programming-languages-operating-systems-for-iot