error.js

/**
 * Created with JetBrains WebStorm.
 * User: Administrator
 * Date: 12-6-12
 * Time: 下午3:02
 * To change this template use File | Settings | File Templates.
 */


module.exports.boot = function(server) {
    bootErrorHandler(server);
};

function bootErrorHandler(server, express) {

  // When no more middleware require execution, aka
  // our router is finished and did not respond, we
  // can assume that it is "not found". Instead of
  // letting Connect deal with this, we define our
  // custom middleware here to simply pass a NotFound
  // exception
  server.use(express.errorHandler());  //使用express的错误处理

  //自定义的错误处理
  server.use(function(req, res, next){
      next(new NotFound(req.url));
  });

  // Provide our app with the notion of NotFound exceptions

  function NotFound(path){
      this.name = 'NotFound'
      if (path) {
          Error.call(this, 'Cannot find ' + path);
          this.path = path;
      } else {
          Error.call(this, 'Not Found');
      }
      Error.captureStackTrace(this, arguments.callee);
  };

  /**
   * Inherit from `Error.prototype`.
   */

  NotFound.prototype.__proto__ = Error.prototype;

  // We can call app.error() several times as shown below.
  // Here we check for an instanceof NotFound and show the
  // 404 page, or we pass on to the next error handler.

  // These handlers could potentially be defined within
  // configure() blocks to provide introspection when
  // in the development environment.

  server.error(function(err, req, res, next){
      if (err instanceof NotFound){
          console.log(err.stack);
          res.render('404', {
              status: 404,
              error: err,
              showStack: app.settings.showStackError,
              title: 'Oops! The page you requested desn\'t exist'
          })
      }
      else {
          console.log(err.stack);
          res.render('500', {
              status: 500,
              error: err,
              showStack: app.settings.showStackError,
              title: 'Oops! Something went wrong!'
          })
      }
  });
};