使用node.js 制作网站前台后台_node.js(2)
复制代码 代码如下: exports.add = function(req, res) { var form = new formidable.IncomingForm(); form.uploadDir = path.join(__dirname, '../files'); form.keepExtensions = true; form.parse(req, f
复制代码 代码如下:
exports.add = function(req, res) {
var form = new formidable.IncomingForm();
form.uploadDir = path.join(__dirname, '../files');
form.keepExtensions = true;
form.parse(req, function(err, fields,files){
var //iconPath = files.icon.path,
//index = iconPath.lastIndexOf('/') <= 0 ? iconPath.lastIndexOf('\\') : iconPath.lastIndexOf('/') ,
icon = path.basename(files.icon.path), // iconPath.substr(index + 1,iconPath.length - index),
iconname = files.icon.name;
var title = fields.title;
id = fields.articleId;
title = fields.title,
content = fields.content,
mincontent = fields.mincontent,
sequencing=fields.sequencing == 0 ? 0 : 1,
category = fields.category;
Article.sync(); //如果不存在就创建表。
Category.find(category).success(function(c){
var article = Article.build({
title : title,
content:content,
mincontent:mincontent,
icon:icon,
iconname:iconname,
sequencing:sequencing
});
article.save()
.success(function(a){
a.setCategory(c);
return res.redirect('/admin/article');
});
}); //end category
});
}
path.basename:
复制代码 代码如下:
//iconPath = files.icon.path,
//index = iconPath.lastIndexOf('/') <= 0 ? iconPath.lastIndexOf('\\') : iconPath.lastIndexOf('/') ,
icon = <strong>path.basename</strong>(files.icon.path), // iconPath.substr(index + 1,iconPath.length - index),
获取文件名，比如：/a/b/aa.txt => aa.txt. 最初时候我使用截取字符串，也能实现，但是操作系统不一样的话就会有问题。mac使用'/' . window下面是'\\'，我也是部署完成之后才发现的问题 。 后来发现path.basename 直接替换（文档阅读的少，就吃亏啊）。对node.js的好感在加1分。：）
3. redis 缓存经常查询，而且很少变化的数据。
复制代码 代码如下:
getCountAll:function(objFun){
redis.get('articles_getCountAll', function(err,reply){
if(err){
console.log(err);
return;
}
if(reply === null){
db.all('SELECT count(articles.CategoryId) as count,categories.name,categories.id FROM articles left join categories on articles.categoryID = categories.id group by articles.CategoryId ', function(err,row){
redis.set('articles_getCountAll',JSON.stringify(row));
objFun(row);
});
}else{
objFun(reply);
}
});
精彩图集
精彩文章