我有一个应用程序,它最初创建静态配置文件(一次),在写入文件后,我需要重新初始化/重新启动应用程序.
是否有东西从自身重新启动node.js应用程序?
这是必需的,因为我在node.js中运行了两个运行级别的应用程序.
最初的一个启动完全同步,在此级别完成后,app在先前启动的环境中处于异步运行级别.
我知道有像nodemon这样的工具,但这不是我需要的.
我试图通过process.kill()杀死应用程序,但是我无法监听kill事件:
// Add the listener
process.on('exit', function(code) {
console.log('About to exit with code:', code);
// Start app again but how?
});
// Kill application
process.kill();
或者有更好,更清洁的方法来处理这个问题吗?
解决方法:
找到一个工作案例来从app本身重新启动node.js:
例:
// Optional part (if there's an running webserver which blocks a port required for next startup
try {
APP.webserver.close(); // Express.js instance
APP.logger("Webserver was halted", 'success');
} catch (e) {
APP.logger("Cant't stop webserver:", 'error'); // No server started
APP.logger(e, 'error');
}
// First I create an exec command which is executed before current process is killed
var cmd = "node " + APP.config.settings.ROOT_DIR + 'app.js';
// Then I look if there's already something ele killing the process
if (APP.killed === undefined) {
APP.killed = true;
// Then I excute the command and kill the app if starting was successful
var exec = require('child_process').exec;
exec(cmd, function () {
APP.logger('APPLICATION RESTARTED', 'success');
process.kill();
});
}
我在这里看到的唯一的问题是在控制台上松散输出,但如果有任何东西登录到日志文件,这不是问题.