fix gitlab #1 . Add dispatch error try/catch and print error.

@@ -32,6 +32,9 @@ global.library = path.resolve('./library');
 global.middleware = path.resolve('./doraemon/middleware');
 global.utils = path.resolve('./utils');
 
+// logger
+const logger = require(global.library + '/logger');
+
 // 向模板注入变量
 app.locals.devEnv = app.get('env') === 'development';
 app.locals.version = pkg.version;
@@ -80,7 +83,11 @@ app.use((req, res, next) => {
 app.use(seo());
 
 // dispatcher
-require('./dispatch')(app);
+try {
+    require('./dispatch')(app);
+} catch (e) {
+    logger.error(e);
+}
 
 // listener
 app.listen(config.port, function() {