store | 易学教程

How to store passwords in a database table

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问题 I am designing a C# application in which I need to store users' login information, including their passwords, in a database table. I was wondering what's a decent way of doing this. I know it is a terrible idea to store passwords as clear text. I was thinking of encrypting the passwords and then storing them. After that, every time the users enter their passwords, I can encrypt their input and compare that encrypted input with the one already in the database. My plan is to use a good has

store List in Global.asax

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问题 We can store application level strings in a global.asax file like: Global asax: void Application_Start(object sender, EventArgs e) { Application.Lock(); Application["msg"] = ""; Application.UnLock(); } And then in pages we get the "msg" variable as: a.aspx.cs: protected void Page_Load(object sender, EventArgs e) { string msg = (string)Application["msg"]; //manipulating msg.. } However, I want to store List of objects as application level variable instead of string msg. I tried this: Global

ExtJS 4.1 : How to combine local data with ajax loaded data in a single store?

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问题 I'm looking for a way to combine local data with ajax loaded data in a single store. It's difficult for me to explain this in english, I hope this piece of code will be more explicit : var store = Ext.create('Ext.data.Store', { autoLoad: true, fields: ['id', 'name'], proxy: { type: 'ajax', api: { read: '/read' } }, data: [{ id: 1, name: 'John' }] }); Json returned by "/read" : [{ id: 2, name: 'Jack' }] . Desired behaviour : store.count() // 2 回答1: You can use .load({addRecords: true} to add

Storing strings of different sizes in a MATLAB array?

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问题 I want to be able to store a series of strings of different sizes such as userinput=['AJ48 NOT'; 'AH43 MANA'; 'AS33 NEWEF']; This of course returns an error as the number of columns differs per row. I'm aware that all that is needed for this to work is adequate spaces in the first and second rows. However I need to be able to put this into an array without forcing the user to add these spaces on his/her own. Is there a command that allows me to do this? If possible I'd also like to know why

How to store data that remains after uninstall

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问题 I want to store some data that should remain also after application uninstall and to be accessible by a new version of this application. Share preferences/files are not a solution as they are removed when program is uninstalled, also writing to internal memory is not a solution (also removed with uninstall). Writing to external public folders I see that is not removed but this would require an external SD Card and don't want to be constrained by this. I don't know about using the SQLite

Java开发工具IntelliJ IDEA使用教程：将应用打包到App Store

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 在Intelli IDEA中，Android应用程序一旦完成编译，都将被打包为APK文件。这个程序包将包含二进制文件和资源。之后就可以被发布到Google Play等应用商店或者是直接安装在应用程序中。如果程序包没有数字签名，那么就不能发布到任何应用商店中。应用程序要签名的话,就必须先获得一个证书。证书将被用来识别应用程序的作者。 1 获得证书 Java SDK将提供一个用于生成和管理证书的工具keytool，用户可以在Java SDK的目录中找到。这样一来在Android开发中,就没有必要从专门的授权机构购买证书，使用keytool生成的证书就可以满足需求了。Intelli IDEA就具有这种工具，并且支持证书的生成。 2 应用程序签名拥有证书之后，开发者需要编译发布的应用程序并签署可执行文件。同时Intellij IDEA 也具有一个Java SDK的命令行工具:jarsigner。启动签署应用程序向导，单击Build|Generate为APK进行数字签名。 3 从IntellijIDEA 获取证书如果还没有创建证书,那么用户可以在前面的对话框中创建。只需要点击创建，就将显示下面的对话框。 4 部署应用程序在向导的最后，还必须完成APK文件的发布编辑和数字签名。因为这仅仅是上传应用程序到App

ExtJs4 Json TreeStore?

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问题 I am migrating my ExtJs3 application to ExtJs4. In ExtJs3 I had a tree grid which had a loader to load the tree data, like below: loader: new Ext.tree.TreeLoader({ dataUrl: 'Department/DepartmentTree', nestedRoot: 'Data.items' }) So I am trying to create a treeStore in ExtJs4 like below: var store = Ext.create('Ext.data.TreeStore', { model: 'DepartmentTreeModel', folderSort: true, proxy: { type: 'ajax', url: 'Department/DepartmentTree', reader: { type: 'json', root: 'Data.items' } } }); I get

Dijit Tree filtering and search not working on ObjectStoreModel

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问题 I have created a dijit tree and a textbox and I want to filter the tree nodes based on keywords provided in textbox. I implemented the solution provided in another question but it does not seem to work. When the user enter some word in textbox the tree is re-populated with same data. dijit.Tree search and refresh Following is my code: require(["dijit/form/TextBox","dojo/store/Memory","dijit/tree/ObjectStoreModel","dijit/Tree","dojo/domReady!"], function(TextBox, MemoryStore, ObjectStoreModel,

Store a dictionary in a file for later retrieval

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问题 I've had a search around but can't find anything regarding this... I'm looking for a way to save a dictionary to file and then later be able to load it back into a variable at a later date by reading the file. The contents of the file don't have to be "human readable" it can be as messy as it wants. Thanks - Hyflex EDIT import cPickle as pickle BDICT = {} ## Automatically generated START name = "BOB" name_title = name.title() count = 5 BDICT[name_title] = count name = "TOM" name_title = name

ExtJS 4: cloning stores

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问题 I'm trying to figure out how to clone an Ext.data.Store without keeping the old reference. Let me explain better with some code. Here's the source store: var source = Ext.create ('Ext.data.Store', { fields: ['name', 'age'] , data: [ {name: 'foo', age: 20} , {name: 'boo', age: 30} , {name: 'too', age: 10} , {name: 'yoo', age: 80} , {name: 'zoo', age: 30} ] }); Follows an example of what I want to do: var target = source; target.removeAll (); // Here I need to have target empty and source