learning apache flink

Org. apache. commons. io -- FileUtils learning notes, fileutils FileUtils Application 1. Write a file; 2. Read from the file; 3. Create a folder, including a folder; 4. Copy files and folders; 5. delete files and folders; 6. Get the file from the URL address; 7. list files and folders through file filters and extensions; 8. Compare the file content; 9. last modification time of the file; 10. Calculate the c

genrsa-out httpd.key 2048) [[email protected] certs]# OpenSSL req-new -key httpd.key-out httpd.csr-days 350Send the generated HTTPD.CSR to the CA server[Email protected] certs]# SCP HTTPD.CSR [email protected]:/tmpConfigure on the CA server[[email protected] certs]# Cd/tmp/[[email protected] tmp]# OpenSSL ca-in httpd.csr-out httpd.crt-days 360 will generate HTTPD.CRT send back httpd server SCP httpd.crt [email protected]:/etc/httpd24/certs/(c) Configuring httpd to use digital certificatesNote:

token =NewUsernamepasswordtoken ("Zhang", "123"); the - Try { - //4. Login, that is, authentication - Subject.login (token); + } - Catch(authenticationexception e) { + //5. Authentication failed A } at -Assert.assertequals (true, subject.isauthenticated ());//assert that the user is logged in - System.out.println (Subject.getprincipal ()); - - //6. Exit - subject.logout (); in}Shiro2.ini also modified from tutorial1 [main]2 #指定s

The evening saw the third chapter of the tutorial .... Feel Shiro string permission is very useful .... But there are too few examples of tutorials ..... And some of the places are not very clear .... So I tested it myself .... Record the results of the test ....(1) *:viewThis type of string permission can match User:view,qwer:view, but cannot match qwe:qwe:view ...This means that the beginning of the * cannot match a string with a colon(2) user:*Can match User:view also can match user:view:qwe

First, httpd.conf configuration file main parametersServerRoot:Listen: Adding a listening port other than 80, such as 808, requires the selinux context to be added,[[email protected] ~]# semanage port-a-T http_port_t-p TCP 808Include: Loaded Modules[[email protected] ~]# httpd-m view loaded modulesServerName: Set the site name, tag different sites;DocumentRoot: Site Home DirectoryDirectory: Directories[Email protected] test]# HTPASSWD-MC htpasswd Tom. htaccess 1 AuthName "test" 2 authtype Basic

Apache Shiro is a security framework for Java. Shiro can be very easy to develop a good enough application, not only can be used in the javase environment, but also can be used in the Java EE environment.The basic function points are as follows:Authentication : identity Authentication/login, verify that the user has the corresponding identity;Authorization : authorization, which is authentication of permissions, verifies that a authenticated user has

1.1 IntroductionApache Shiro is a security framework for Java. Currently, there are more and more people using Apache Shiro, because it is fairly simple, compared to spring security, it may not be as powerful as spring security, but it may not need to be as complex as it actually works. So the use of small and simple Shiro is enough. For the two of them in the end which is good, this does not have to struggle, can be easier to solve the project proble

{case (key, value) = > value.tostring (). Split ("\\s+"); Map (Word = > (word, 1)). Reducebykey (_ + _) Where the Flatmap function converts a record into multiple records (One-to-many relationships), the map function converts a record to another record (one-to-one relationship), and the Reducebykey function divides the same data into a bucket and calculates it in key units. The specific meaning of these functions can be referred to: Spark transformation. Step 4: Save the resulting rdd dataset to

/wKiom1SNi4LA9J7oAALEVi9j3fs250.jpg "title=" 2014-12-14_202827.png "alt=" Wkiom1sni4la9j7oaalevi9j3fs250.jpg "/>10. Login Database650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/56/C4/wKioL1SNjJyhWy81AALnDYOYPVw868.jpg "title=" 2014-12-14_203306.png "alt=" Wkiol1snjjyhwy81aalndyoypvw868.jpg "/>11. Successful Landing650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/56/C7/wKiom1SNjILxNy97AAMmCoknDrQ629.jpg "title=" 2014-12-14_203324.png "alt=" Wkiom1snjilxny97aammcokndrq629.jpg

Label:Implementation class for the Resultsethandler interfaceKeyedhandler (name): Encapsulates each row of data in the result set into a map and then saves the map to a map with the key specified.public void Testkeyedhandler () throws sqlexception{Queryrunner runner = new Queryrunner (Dbmanager.getdatasource ());String sql = "SELECT * from users";mapFor (map.entryint id = Me.getkey ();mapFor (map.entryString name = Innerme.getkey ();Object value = Innerme.getvalue ();SYSTEM.OUT.PRINTLN (name + "

Apache Thrift is an efficient framework for Facebook to implement remote service calls that support multiple programming languages.Objective:There are a number of popular service invocation methods, such as a WEB service based on a SOAP message format, a RESTful service based on a JSON message format, and so on. The data transmission methods used include Xml,json, but the XML is too large, the transmission efficiency is low, the JSON is small and nove

. Apache. Axis2. Axisfault;Importcom. Csdn. WS. Axis2. Recipe01. Helloworldstub;public class Client {public static void main (string[] args) {try {helloworldstub stub = new Hellow Orldstub ();//Create Helloworldstub ObjectHelloworldstub. SayHelloSayHello = new Helloworldstub. SayHello();//Create SayHello objectSayHello. Setargs0 ("Jane");//Set ParametersHelloworldstub. SayhelloresponseResp = stub. SayHello(SayHello);System. out. println(RESP. Get_retu

by the user who accessed the protected page.4, Fsize: Displays the size of the specified file, can be combined with the sizefmt parameter of the config command to customize the output format.5, Flastmod: Display the last modified date of the specified file, you can combine the timefmt parameter of the config command to control the output format.Here, we can use the Flastmod parameter to display the updated date of all linked pages on a page. Here's how:The results shown are:File April 19, 2000A

the RM with several HA-related options and switches the Active/standby mode. The HA command takes the RM service ID set by the Yarn.resourcemanager.ha.rm-ids property as the parameter.$ yarn rmadmin-getservicestate rm1 Active $ yarn rmadmin-getservicestate RM2 StandbyIf automatic recovery is enabled, then you can switch commands without having to manually.$ yarn Rmadmin-transitiontostandby rm1 Automatic failover is enabled for [email protected] refusing to manually manage HA State, since it cou

Test.ffm83.commons.codec;import org.apache.commons.codec.CharEncoding;import Org.apache.commons.codec.net.URLCodec;import org.apache.commons.lang.BooleanUtils;import org.apache.commons.lang.StringUtils;/*** through Apache Commonscodec of the Net Package for URL Encryption of Data** @author Fan Fangming*/Public class Urlcodecusage {Public static void main (string[] args)throws exception{Urlcodecusage usage = new urlcodecusage ();Usage.useurle

http broadcast spark.broadcast.port jetty-based, Torrentbroadcast does not use this port, it sends data through the Block manager executor driver random spark.replclassserver.port jetty-based, Only for spark shell Executor/driver Executor/driver Random Block Manager Port Spark.blockManager.port Raw socket via Serversocketchannel For security configuration parameters

=650; "src=" http://s3.51cto.com/wyfs02/M02/70/F6/wKioL1XCKb3R6hh1AAEhSLpSWKE095.jpg "style=" float: none; "title=" 15.png "alt=" Wkiol1xckb3r6hh1aaehslpswke095.jpg "/>In the configuration file, add 8080 port, default is 80650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/70/F6/wKioL1XCKb2z-1aiAABiiBI1Agw839.jpg "style=" float: none; "title=" 16.png "alt=" Wkiol1xckb2z-1aiaabiibi1agw839.jpg "/>Modify Virtual Host Settings650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/70/F9/w

*:* users: (("sshd", 1276,3) listen 0128 127.0.0.1:631 *:* users: (("CUPSD", 1117,7)) listen 0128 ::1:631 :::* users: (("CUPSD ", 1117,6)) listen0100 ::1:25 :::* users: (("Master", 1384,13) listen 0100 127.0.0.1:25 *:* users: (("Master", 1384,12) LISTEN 0128 :::47422 :::* Users: (("rpc.statd", 1041,11)) listen0128 *:52751 *:* users: (("rpc.statd", 1041,9)) listen0 128 :::111 :::* users: (("Rpcbind", 1021,11)) listen0128 *:111 *:* users: (("Rpcbind"

Ruchunli's work notes , a good memory is worse than a bad pen Integrating Apache Shiro into spring-based applicationsShiro components are Javabean/pojo-type components, so it's easy to use spring for component management, to easily migrate from INI configuration to spring for management, and to support integration of Javase applications and Web applications.Web applications1. Web. xml2, Applicationcontext.xmlIn your Applicationcontext.xml file,

SHiro supports three different ways of authorizing:1. Programming: By writing If/else Authorization code block complete:Subject Subject = securityutils.getsubject (); if (Subject.hasrole ("admin")) { // have permission else { // No permissions 2. Annotation: complete by placing the corresponding annotations on the executing Java method:@RequiresRoles ("admin") publicvoid hello () { // has permission } 3.JSP/GSP Tags: in the JSP/GSP page through the corresponding label t