sign

静态方法中直接使用注入的bean对象

冷暖自知 提交于 2019-12-19 19:03:11
问题: 静态方法中注入bean 分析问题: 先看一段代码 @Component public class ScriptExecuteContent { @Autowired private static SignRepository signRepository; public static String checkSign(String certNo, String acctNo, String instCode) { Sign sign = signRepository.findByCertNoAndAcctNoAndInstCode(certNo, acctNo, instCode); if (null != sign && StringUtils.equals(sign.getStatus(), StatusEnum.SUCCESS.code()) && DateUtil.getCurrentDate().before(sign.getExpireTime())) { return "1"; } else { return "0"; } } } 该段代码晃眼一看没啥问题,但是运行就会null异常,因为此处注入的signRepository为null,这是因为静态方法是属于类的,普通方法才属于对象,spring注入是在容器中实例化变量的,并且静态是优先于对象存在的

How to move minus sign from right to left/back to front in R?

生来就可爱ヽ(ⅴ<●) 提交于 2019-12-19 10:07:18
问题 I've imported the data from a text file and the negative numbers are in the form of 100- (The minus sign in the right side) and I should convert it into -100. Any idea. Thanks in advance. 回答1: We can do this using sub . We capture the numbers as a group ( (\\d+) ) followed by a - at the end ( $ ) of the string and replace with - followed by the backreference ( \\1 ) of the capture group. as.numeric(sub("([0-9.]+)-$", "-\\1", v1)) #[1] -100.50 -100.05 0.22 -22.00 data v1 <- c(-100.5, '100.05-'

Attribute特性

女生的网名这么多〃 提交于 2019-12-18 12:40:03
Attribute是一个类,用来对程序中的元素进行标注,如类型、字段、方法和属性等。Attributes和Microsoft .NET Framework文件的元数据保存在一起,可以用来向运行时描述你的代码,或者在程序运行的时候影响应用程序的行为。根据不同的标签做出不同的处理。 [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false)] public class UserAuthorizeAttribute : AuthorizeAttribute { #region 字段和属性 /// <summary> /// 模块别名,可配置更改 /// </summary> public string ModuleAlias { get; set; } /// <summary> /// 权限动作 /// </summary> public string OperaAction { get; set; } /// <summary> /// 权限访问控制器参数 /// </summary> private string Sign { get; set; } /// <summary> /// 基类实例化 /// </summary> public

How do you sign a Java Midlet?

丶灬走出姿态 提交于 2019-12-18 10:30:34
问题 A simple question with a fairly complicated answer: How do you sign a Java Midlet so you can load it onto a mobile phone with less security prompts? 回答1: Get required software Java SDK (JDK) from Sun (you should already have this) Java Wireless Toolkit (WTK) also from Sun Optionally get and install Ant and Antenna to allow you to automate your build (I'd strongly recommend these) Import an existing certificate (if you have one) If you've purchased a certificate from Verisign (or another

How to associate a previous signature in a new signature field

不羁岁月 提交于 2019-12-17 20:43:32
问题 I have a signed PDF. I would like to show this signature in the document. I can add a new signature field, this way: Stamper.addSignature("My Signature", 1, 20f, 10f, 100f, 100f); But I can't find a way to associate it with the signature that is already in the document. How can I associate it? 回答1: The OP wants to attach an in-document signature visualization to an existing signature. First of all, this obviously is not allowed if your documents has been certified with no changes allowed

圆的反演

Deadly 提交于 2019-12-17 19:54:30
ACM比赛计算几何就比较重要了,高中只学了个凸包,今儿从圆的反演学起吧。 先来看一道需要用反演解决的题: HDU4773 Problem of Apollonius 题意:给定两个圆(x1,y1,r1)、(x2,y2,r2),它们是相离的,在这两个圆外给定一个点p(x0,y0)。求符合条件:过点p的圆且与已知的两个圆外切的所有圆的总数和它们的圆心坐标和半径。 SOL:如果不知道反演,这道题的做法显然是列出两个方程: 然后发现这个东西根本就没有办法搞。所以就需要用到反演来解答此题。 反演的定义:已知一圆C,圆心为O,半径为r,如果P与P’在过圆心O的直线上,且 ,则称P与P'关于O互为反演点。 几条反演的重要性质: (1)过反演中心的圆,反形(经过反演之后的图形)为不过反演中心的直线。     (2)不过反演中心的直线,反形为过反演中心的圆。 证明的话比较显然,对于上面这个图,就是证明$|OM|*|OM^{'}| = |OC|*|OC^{'}|$就好了,也就是$\Delta OM^{'}C^{'} \sim \Delta OCM$。这个的话根据那个直角很容易得出。 (3)不过反演中心的圆,反形也为不过反演中心的圆,并且 反演中心为这两个互为反形的圆的位似中心 。 比如上图,O为反演中心,A和A'、B和B'都是互为反演点。证明从略。 这样的话显而易见的就得到了定理(4):

Signing Windows application on Linux-based distros

别来无恙 提交于 2019-12-17 08:17:20
问题 I have prepared an application and website where the customer can set several options for this application before he downloads it. Settings are stored in binary format on the end of the file (appended), then the edited file is sent to the end user. The problem is that the change of "contents" of the file will break the file signature - is there any chance to re-sign this changed file with any command line tools? I've tried to use Microsoft's SignTool, but it does not work properly on Linux.

Django入门(一)

落花浮王杯 提交于 2019-12-17 07:12:51
一、开始第一个 demo 1 、 Django 安装(略) 2 、创建项目与应用 创建项目:      django-admin startproject [项目名称]   例: django-admin startproject guest 目录结构: guest / ├── guest/ │ ├── __init__.py │ ├── settings.py │ ├── urls.py │ └── wsgi.py └── manage.py guest/__init__.py:一个空的文件,用它标识一个目录为Python 的标准包。 guest/settings.py:Django 项目的配置文件,包括Django 模块应用配置,数据库配置,模板配置等。 guest/urls.py:Django 项目的URL 声明。 guest/wsgi.py:为WSGI 兼容的Web 服务器服务项目的切入点。 manage.py:一个命令行工具,可以让你在使用Django 项目时以不同的方式进行交互。 创建应用: python manage.py startapp [应用名称] 例: cd guest python manage.py startapp sign 应用的目录:     migrations/:用于记录models 中数据的变更。 admin.py:映射models

How to Digitally Sign GST Return or eReturn using JavaScript form Browser and USB Token of user? Can I use WebCrypto API?

空扰寡人 提交于 2019-12-17 03:20:38
问题 Looking for Javascript code to sign GST or Income Tax eReturns from Browser using USB Token. 回答1: Recently much is being talked about WebCrypto API but as of now, WebCrypto API does not provide access to (Windows) or any other Key stores or local crypto USB/Smartcard device. Older methods being java applets, Active X, etc which are phased out or are being phased out from the Modern Browser offerings. Most of the web applications require Digital Signing pdf documents, files, eReturns (XML or

某宝新版本x-sign的hook方案

本小妞迷上赌 提交于 2019-12-16 03:32:10
某宝最新版本x-sign跟之前固定长度50位不一样,变成100多位不固定长度,其实就是加密后用了base64编码。x-pv为6.2之后变成这个版本啦 如: x-sign: azYBCM002xAAESxK0GTLRB8M9T9JsSxBJD8HdPvf42hxPDj4D3Wf5j%2BuLxfzlvDad0H9FM0S1N%2BfC%2BhNfHBoBv52%2FVEccSxBLHEsQS x-features: 27 x-app-conf-v: 19 x-pv:6.3 可以通过hook淘宝这个方法。 public String signRequest(SecurityGuardParamContext securityGuardParamContext) { if (securityGuardParamContext == null || securityGuardParamContext.paramMap == null) { return null; } try { SecurityGuardParamContext securityGuardParamContext2 = new SecurityGuardParamContext(); securityGuardParamContext2.appKey = securityGuardParamContext.appKey;