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index.js
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index.js
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/*Routing
* /controllers:自动设置controllers文件夹下面路由,请求/map/index会转到对应controllers下map.js内的index函数
* /public:放置静态文件
* /views:放置视图文件
* request.template 显示视图函数
* request.viewPath 存储请求路径变量
* url请求中按controller优先查找,若无则视为folder,找到action后,后面的url为参数
* 例如: /index/index/type/1/method/get 找到index的controller下面的index的action,get参数为type=1,method="get";
*/
var Routing = exports,
config = Routing.config = require('./config.js'),
express = require('express'),
url = require('url'),
path = require('path'),
errorCode = Routing.errorCode = require('./error.js').errorCode,
stringBuffer = require('./lib/libString.js').stringBuffer,
app = Routing.app = {},
inited = false;
Routing.init = function() {
//存储controller对象
app = Routing.app = express.createServer(),
controllers = Routing.controllers = require('./controllers.js').controllers,
template = require(config.template);
app.configure(function() {
app.set('view engine',config.templateExtension);
app.set('view',config.viewsDir);
app.register('html',template);
app.use(express.cookieParser());
app.use(express.bodyParser());
app.use(express.session({secret:config.session_secret}));
});
app.configure('development', function() {
app.use(express.static(config.rootPath + '/public'));
app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
});
app.configure('production', function() {
app.use(express.static(config.rootPath + '/public',{maxAge:config.static_maxage}));
app.use(express.errorHandler());
app.set('view cache',true);
});
//错误解析设置
if(!config.debug) {
app.error(function(err, req, res, next) {
for(var i in errorCode) {
if(err.message == i) {
return errorCode[i](req,res,next);
}
}
return errorCode['500'](req,res,next);
});
};
inited = true;
};
//不用route解析的文件
var publicFile = new RegExp(/\..*$/),
custom = [],
ports;
//配置config函数
Routing.configure = function(obj) {
for(var i in obj) {
if(i == 'rootPath') {
if(config['controllersDir'].match(config['rootPath']+'/controllers'))
config['controllersDir'] = obj[i] + '/controllers';
if(config['viewsDir'].match(config['rootPath'])+'/views')
config['viewsDir'] = obj[i] + '/views';
}
config[i] = obj[i];
}
}
//设置自定义路由解析
Routing.customRoute = function(fn) { //fn函数内用this或者Routing.app来指定express的server对象
custom.push(fn);
}
Routing.listen = function(p) {
if(ports) return;
ports = p;
if(!inited) {
console.log('Please use init() first');
return;
}
//设置自定义路由解析
for(var i in custom) custom[i].call(app);
//路由解析设置
app.all('/*',function(req,res) {
var reqUrl = url.parse(req.url).path;
if(publicFile.test(reqUrl)) return; //如果请求为静态文件不使用路由转向
reqUrl = path.normalize(reqUrl); //格式化url路径
var urlPath = stringBuffer(reqUrl.split('/')).remove().getArray();
if(urlPath.length == 0) { //设置默认路由转向
return res.redirect('/' + config.controller_default);
}
//路由文件查找
var routeFunction = controllers.findSet({path:urlPath,request:req});
if(routeFunction) {
res.template = function(obj) {
return res.render(req.viewPath.join('/'),obj);
};
return routeFunction(req,res);
} else {
throw new Error('404');
}
});
//开启服务
app.listen(ports);
}