ruby facets

to elaborate. Weaving (weaving) the process of applying facets to a target object to create a new proxy object. There are three ways that Spring uses the runtime, and why it is run, in the previous article "a discussion of spring AOP Development Ramble about the use of AOP and AspectJ" in the second label mentioned. Target Object – The original Java component of the project. AOP Proxy – Generates Java objects from the AOP framework. AOP Proxy

simultaneously. In principle, the caller calls directly the AOP container dynamically generated proxy object, and then the proxy object calls the target object to complete the original business logic processing, and the proxy object has already synthesized the tangent plane and the business logic method.Some of the concepts that are covered in figure 6-6 are explained below.Facets (Aspect): In fact, the realization of common functions. such as log plane, permission plane, transaction plane, and

Right-click the project and click Properties->project FacetsIf you can see the project as web2.3 java1.5 of course we can also change to the version we need, open the XML file My-app-web/.settings/org.eclipse.wst.common.project.facet.core.xml, modify it:XML code XML version="1.0" encoding="UTF-8"?> Faceted-project > fixed facet="Wst.jsdt.web"/> installed facet="java" version="1.8"/> installed facet="Jst.web" version="3.0"/> installed facet="Wst.jsdt.web" version="1.0"/>

1. AOP Concept: Aspect-oriented programming, refers to the extension function does not modify the source code, the function code is separated from the business logic code.Main functions: Logging, performance statistics, security control, transaction processing, exception handling and so on.The main intent: to divide the code of logging, performance statistics, security control, transaction processing, exception handling, and so forth from the business logic code, through the separation of these

Step1 Open Section Programming Open section programming (weaving @aspectj facets by configuration)- aop:aspectj-autoproxy/> Step2 writing a log annotation class@Target ({elementtype.parameter, elementtype.method}) @Retention (retentionpolicy.runtime) @Documented Public @interface Systemlog { default "";} @Aspect @componentPublicClassSystemlogaspect {@Pointcut ("@annotation (Com.tj.common.log.system.SystemLog)")PublicvoidControlleras

Springboot provides powerful AOP support, and we've explained AOP-oriented facets, so here's how the specific AOP principle complements the specific description;AOP aspect is mainly cut method, we usually engage in some log analysis and transaction operations, to use the plane, similar to interceptors;@Aspect annotations are facet annotation classes@Pointcut tangency Definition@Before is called before the method executes@After is called after the meth

); System.out.println ("Result:" +result); //result = Arithmeticcalculator.div (3, 0); //System.out.println ("Result:" + result); }}XML version= "1.0" encoding= "UTF-8"?>Beansxmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"Xmlns:context= "Http://www.springframework.org/schema/context"XMLNS:AOP= "HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP"xsi:schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/sche

Http://stackoverflow.com/questions/185697/the-most-efficient-way-to-find-top-k-frequent-words-in-a-big-word-sequencehttp://www.geeksforgeeks.org/find-the-k-most-frequent-words-from-a-file/Http://cs.stackexchange.com/questions/26427/word-frequency-with-ordering-in-on-complexityThe idea is roughly as follows:(1) Hash table statistics Word occurrences, and then look for top K appears, wherein the top K can use N*log (k) heap ideas, or quick-line ideas, or bucket sequencing ideas (previously in FBT

logging, transaction control, and so on.packagecom.tarena.vote.aspect;importorg.aspectj.lang.joinpoint;import org.aspectj.lang.proceedingjoinpoint;importorg.aspectj.lang.annotation.after;import org.aspectj.lang.annotation.afterreturning;importorg.aspectj.lang.annotation.afterthrowing;import org.aspectj.lang.annotation.around;importorg.aspectj.lang.annotation.aspect;import org.aspectj.lang.annotation.before;importorg.aspectj.lang.annotation.pointcut;import Org.springframework.stereotype.componen

tag of the transaction privatestaticthreadlocalService,dao's Factory classGenerate service agents, based on annotations to determine what to do before and after the service method executespublicclassbasicfactory{privatestaticbasicfactory Factory=newbasicfactory ();privatestaticproperties Prop=null;privatebasicfactory () {}static{ try{ prop=newproperties (); prop.load (Newfilereader (BasicFactory.class.getClassLoader () getresource (" Config.properties "). GetPath ());}catch (Exception e) {e.pri

1. Import Maven web project. 2. MAVEN => Update Pproject Configuration 3. project Properties => Project facets => convert to faceted form => select "dynamic web module" => click "further configuration available", change the 'content directory to your current folder, like 'src \ main \ webapp' 4. Make sure Maven dependencies embedded during run on Tomcat 7 by: Project Properties => deployment Assembly => Add => "Maven dependencies" Run on server now w

(!accesstoken.equals (Accesstokenkey)) { returnNewresult (false). Setmessage ("Parameter Error"); } intRequestcount=0; if(Stringutils.isnotempty (Accesstokenkey)) {RequestCount++; if(requestcount>100){ returnNewresult (false). Setmessage ("The request is too fast, take a break and try again.")); } } if(Result = =NULL){ //under all normal circumstances, continue to execute the intercepted methodresult =pjp.proceed (

(); String MethodName=point.getsignature (). GetName (); String logstring= "Exit Method:" + TargetName + "." + MethodName + ", the return result is:" +ReturnVal; Logger Logger=Logger.getlogger (Clazz); Logger.info (logstring); } /*** Method has an exception when the Operation*/@AfterThrowing (pointcut= "PointCut ()",throwing = "Error") Public voidDoafterthrow (joinpoint point, throwable error) {Class clazz=point.gettarget (). GetClass (); String TargetName=Clazz.getsimplename (); Stri

(); } }Else{ if(Resultvalue! =NULL) {msg=resultvalue.tostring (); } } if(Stringutils.isnotblank (msg)) {String res= Com.gmall88.server.util.StringUtils.lessWord (msg, 1000-3); Map Map=NewHashMap (); Map.put ("Code", code); Map.put ("Params", params); Map.put ("Message", RES); Jsonobject obj=jsonobject.fromobject (map); String type= "Afterreturning:"; String objstring=NewString (Obj.tostring (). GetBytes ("UTF-8")); String objUTF8= Urlencoder.encod

[] args) {ApplicationContext ctx=NewClasspathxmlapplicationcontext ("Bean.xml"); Performer Performer= (performer) Ctx.getbean ("Xingoo"); Performer.perform (); }}The following are the key configuration filesThe configuration file at this point is aware that spring will know which one is the normal bean and which is the notification. It is therefore necessary to add an attribute to ensure that AOP automatically recognizes notifications.Class="true"/>The configuration file is as follows:"1.0"en

AOP is the Aspect oriented program for slicing. In the AOP thought, the function is divided into the core business function and the periphery function.The so-called core business, such as landing, adding data, deleting data is called the core business.The so-called peripheral functions, such as performance statistics, logging, transaction management and so on.The perimeter function is defined as a slice in spring's aspect-oriented programming AOP idea . In the AOP idea, the core business functio

Often when you import a Web project in Eclipse, there is no way to project type problems, after the import is a Java project, has been a lot of experience, today there are colleagues have similar problems, put this solution to write down, lest later go everywhere to search. Steps to resolve: 1, enter the project directory, you can see the. project file, open. 2. Find the 3, in the 2nd step of the code snippet, add the following label content and save: 4. Right-click on the Eclipse projec

Often when you import a Web project in Eclipse, there is no way to project type problems, after the import is a Java project, has been a lot of experience, today there are colleagues have similar problems, put this solution to write down, lest later go everywhere to search. Steps to resolve: 1, enter the project directory, you can see the. project file, open. 2. Find the 3, in the 2nd step of the code snippet, add the following label content and save: 4. Right-click on the Eclipse projec