物联网内存吃紧,跑JVM这种内存大户肯定吃不消.

要跑还是跑C实现的服务,比如Nginx+PHP+SQLite.

比如一些家用无线路由器,系统是Linux发行版OpenWrt,内存只有64MB到128MB,单核580MHz.

而PHP内置HTTP服务器和SQLite数据库,在无线路由器里对外提供HTTP服务丝毫没有问题.

交叉编译PHP也很简单:

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

当然了,PHP还有Swoole这种网络编程框架.