我正在使用nodeJS，express，swagger-tools来获取来自我的Heroku dyno中的/ docs的Swagger API文档 . 本地这是有效的，但在Heroku端口没有收听 .
app[web.1]: info: Swagger-ui is available on localhost:5765/docs
heroku[web.1]: State changed from crashed to starting
heroku[web.1]: Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch
heroku[web.1]: Stopping process with SIGKILL
heroku[web.1]: Process exited with status 137
在代码上，我有Heroku预定的端口 .
var listen_addr = 'localhost';
var listen_port = process.env.PORT || 8080;
var swaggerDoc = require(options.swaggerUi);
swaggerDoc.host = listen_addr +":" + listen_port; // making sure of add
swaggerTools.initializeMiddleware(swaggerDoc, function (middleware) {
app.use(middleware.swaggerMetadata());
app.use(middleware.swaggerValidator());
app.use(middleware.swaggerUi() );
app.use(middleware.swaggerRouter(options) );
app.listen(listen_port, listen_addr) {
winston.info('Server is listening on %s:%d', listen, port);
winston.info('Swagger-ui is available on %s:%d/docs', listen, port);
});
});
更新：问题似乎通过将app.listen更改为app.listen来解决（process.env.PORT || 3000，function（）