quora digest

An exception is thrown when you use javamail to send an email: Java. Lang. securityexception: sha1 digest error for COM/Sun/mail/SMTP/smtptransport. Class I am depressed for a long time, and finally found two problems 1. import all jar files in the project (this is not enough. It can be sent at this time, but an exception will always be reported. For the solution, refer to article 2. add all jar files to the Tomcat server {configure global path }. t

{messagedigest messagedigest= Messagedigest.getinstance ("SHA1"); FileInputStream FIS=Newfileinputstream (file); byte[] data =New byte[1024]; intRead = 0; while(read = Fis.read (data))! =-1) {messagedigest.update (data,0, read); } byte[] Hashbytes =messagedigest.digest (); StringBuffer SB=NewStringBuffer (); for(inti = 0; i ) {sb.append (integer.tostring (hashbytes[i) 0xff) + 0x100, +). SUBSTRING (1)); } String Filehash=sb.tostring (); System.out.println (File+ "SHA1 is:" +Filehash); r

the use of JS regular expressions JS can only enter regular expressions such as numbers or numbers and letters. JS Regular Expression Daquan (collation detailed and practical) JS verification phone number and phone support +86 regular expression JS Regular expression Validation numeric code JS Regular expression method for obtaining specific characters in a string JS Regular Expression Learning Note matching string The most detailed JS date in history regular express

this piece extremely chaotic, especially browser compatibility problem, side dish level is limited, this article is likely to have improper place, hope reader forgive. actually do not want to write such a long article, but for the reader to understand, always involuntarily want to give more examples. in order to alleviate the psychological pressure of the reader, this article does not have any CSS, HTML code, because now a lot of tutorials are a bunch of CSS code, see it annoying, don't say fin

converting from a string array to an int array in C #String[] input = {"1", "2", "3", "4", "5", "6", "7", "8", "9"};int[] output = array.convertall{return int. Parse (s);});Note:Convert using the static generic method ConvertAll in the array classDelegate (string s) {return int. Parse (s); }This sentence means: Establish an anonymous delegate, the method body associated with the delegate is: return int. Parse (s);Casts each string in the array to reshape and returns the add to outputHow to conve

table structure, there will be other values in this struct, which will not be described here. In the initial state, the cnt field of all hash structures is 0. 2. Create a KeyWord structure with the following struct: struct KeyWord{　　int start;　　KeyHash* key; 　　KeyWord* next; 　　KeyWord* prev; } The key field points to a created KeyWord that represents a KeyWord currently scanned. Multiple keywords scanned form a two-way linked list. The start field points to the starting position of the keywor

The refresh in spring is a fairly important method.It finishes the first phase of the IOC, transforming the beans in XML into beandefinition. Specify what you see.In, the process of creating obtainfreshbeanfactory is worth unfolding. The second stage of the IOC is Getbean. will be explained.Applicationeventmulticaster and listener are a standard observer design pattern, please refer to the http://blog.csdn.net/zxy861114/article/details/40046483.Blog purpose: To speak with the figure.Spring sourc

()) { // Delete folder Fs.rmdir ('./b ', function () {})} else { delete file fs.unlink ('./b ', function () {});}})} Use recursion to write a folder and create it sequentiallyfunctionMD (URL) {Let Paths=url.split ('/');//split the a/b/c into arrays [' A ', ' B ', ' C ']Let Index=0; functionMake (path) {if(index===paths.length+1) {//If you go to the end, stop recursion. return false; } if(!fs.existssync (path)) {//does not exist //Create a folderFs.mkdir

The algorithm mainly considers four aspects: The relationship between the words in the title and the other words in the text; The length of the sentence; The position of the sentence (the second sentence of the general article is more important than the first sentence, the author often introduces key points here); If some words appear more frequently on the site of the article, these words should be weighted. General automatic Summary comparison is commonly used to extract the k

Abstract 1:MD5Import hashlibmd5 = Hashlib.md5 () print (MD5) print (Md5.update (' How to use MD5 in Python hashlib? '). Encode (' Utf-8 ')) print (Md5.hexdigest ()) run Result: Abstract 2:SHA1IMPORTNBSP;HASHLIBSHA1NBSP;=NBSP;HASHLIB.SHA1 () sha1.update (' howtousesha1in '). Encode (' Utf-8 ')) sha1.update (' Pythonhashlib? '). Encode (' Utf-8 ')) print (Sha1.hexdigest ()) Operation Result:2c76b57293ce30acef38d98f6046927161b46a44Add Salt: saltThis is a custom algorithm.The same string can get the

#!/usr/bin/env python#-*-coding:utf-8-*-__author__="Loki"#usage:hashlib ModuleImportHashlibImport Time#wrapper function Calc Length and use timedefLen_type_tools (res):defWrapper (*args, * *Kwargs): Cur_time=time.time () len_res= Len (res (*args, * *Kwargs)) Result= Res (*args, * *Kwargs) End_time= Time.time ()-Cur_timePrint('Primary HASH result length is {0}, use time {1:.2f}'. Format (len_res, end_time))returnresultreturnwrapperdefmenu_list (): Func_list= {} forIteminchHashlib.__dict__:

Essence | Digest-response object (2000.03.22) Response objects Response objects are useful and feature-rich. Here we are going to introduce to you the most basic function. Of course it's all a lot more functional than we're here to introduce, but we think the 20% of the The content is that you will be able to use it in 80% of the time. We think the main functions of the response object are as follows: # RESPONSE. WRITE # RESPONSE. Write can also be

Recently in the use of Google Rich Web Page Digest test tool, found that for the default WordPress blog, there will always be three error messages appear, today I would like to introduce, how to modify the wordpress template file to repair these error information methods. The error message content is: warning:missing Required Field "Entry-title". warning:missing Required Field "updated". Warning:missing Required HCard "author". The error messag

can also be converted in other formats, the most common is money, money,decimal type, and if the database is a varchar type, and then you throw in the int, Dateteime or something like that. CONVERT () it's simple.Format: CONVERT (the type to be transferred, the data to be transferred) For example: Convert (VARCHAR (), Tid) tid is int type to VARCHAR, very simpleWhen it comes to skilled use of the IsNULL () function, subtraction will have to wrap a layer of IsNULL () function outside.Format:IsNu

Similar to the content of the basic article, the difference is that the process uses the Digest certification: Tomcat configuration: 1 Create a new directory under Tomcat WebApps Authen, then create a subdirectory subdir, below a index.jsp 2 Set up the Web-inf directory under the Authen directory, and devolve the Web. xml file as follows XML code 3 in the Tomcat Tomcat-users.xml file, add a user name password of test,test user, role test.

we'll set up a catalogue.I built the directory, the inside is empty, we do not have to check.Then, let's see if we can execute the command without a path.The problem here, the basic solution, and you enter pt-, direct table, directly fill up your command, haha. It's much more convenient.The road is here, and the next exploration is not much to say. We are all ape-men, this spirit is still there.Finally attach the official website's help document, the English Austrian.Http://www.percona.com/doc/

current database orphaned usersEXEC sp_change_users_login ' report 'UserName UserSID---------- -----------------------Csidbo 0xafeef9da1ba20e43ac8b01c69574f91b b), mapping orphaned users to logins with the same name (not present)--The following example will create a new login named Csidbo, and set the password to XXX--Demo environment: Microsoft SQL Server R2 (RTM)-10.50.1600.1--Author:leshami--Blog:http://www.linuxidc.comUse crmnew;GOEXEC sp_change_users_login ' Auto_Fix ', ' csidbo ', NULL, '

The binlog parsing tool is widely used. mysqlbinlog is the most commonly used tool. It has its own merits. For DBA, this article only introduces pt-query-digest, which can be used to solve the problem. The binlog parsing tool is widely used. mysqlbinlog is the most commonly used tool. It has its own merits. For DBA, this article only introduces pt-query-digest, which can be used to solve the problem. T

A script for slow query log tracking based on pt-query-digest Percona-toolkit is called MySQL DBA's "Switzerland ***", and its strength is self-evident. The slow query and analysis tool "pt-query-digest" provides many additional attributes, such as flexible filters, compared with the official "mysqldumpslow, database and table-based analysis and sorting. Today, we will share a small script that automaticall

If you angular $apply, $digest, $watch indefinitely, then I believe that the following words can make you understand deeply! This article is aimed at the students who have known $apply, $digest, $watch. That is to say you have searched many blog forums for $apply, $digest, $watch, though somewhat masked, but indefinitely feeling. If you have never been to the u