groovy case

There is nothing to say. You can understand it at a glance. Bitwise operations From groovy 1.0 Beta 10, groovy supports bitwise operations: (supported from grovvy1.0beta10) _Meaning_ Bitwise left shift operator > Bitwise right shift operator >>> Bitwise unsigned right shift operator | Bi

As a jvm-based language, groovy is increasing in popularity. This article demonstrates how the Groovy.lang.Script class, inherited by GdK, supports custom expression parsing in a Java class.Input:Represents a map structure for a row of data. In practical applications, the most common scenario in which this structure is generated may be access to the database through JDBC, a result set of rows obtained by invoking the WebService service, and so on.Targ

resources is a tricky issue. We need to define choreography, handle errors, and keep trying, and the system must be able to perform well under pressure. As an integrated framework, Mule provides everything we need. Consider an example of a business system that deals with new orders in a format that requires the following: Create a new order by sending an XML entity to the service. Look for the newly created order resource and extract the confirmation from it. Send a confirmation message to

A resilient and dynamic development environment is being given unprecedented attention, and even the scripting language shows this feature, which is exactly what we need, that is, we always need to build an application that is maintainable and that meets our needs. If we want to get involved in scripting language, we should consider a new scripting API provided by Java SE 6: A language-independent framework that allows developers to use scripting languages in Java code. With this new set of APIs

In recent years, AOP (aspect-oriented programming) has been widely used, we apply it to such as print log, permission control and so on. When it comes to AOP, we typically use tools such as spring AOP, and so on. Of course, tools are commonly used to implement system-level AOP, which is typically implemented with the help of configuration documents. When we need to implement a smaller range of AOP, such as AOP for certain methods of a finite number of classes, we generally do not want to use t

1. Program Entry You can write statements directly.You can also add a main method to the first class of the current groovy source file. See below: Class student{ static void Main (args) { print "HI" } } 2. Sample Code System.out.print () print ' hi\n '; for (int i=0;i * But,if the class implements comparable interface, ' = = ' in groovy was same as ' compareTo () ' in Java * /print (stud ENT1==STU

Tags: failed others encounter folder check settings successful 4.0 LenovoFirst, the background: use JMeter to do interface testing, background is MongoDB, it is inevitable to connect access. 1, JMeter itself originally has MONGODB.JMX script sample, but now is not recommended to use. 2, can only think of another way, because do not understand Java, so decided to take JMeter JSR request, through groovy script way, access to MongoDB. 3, encountered the

Import Java.sql.Connection Import Java.sql.DriverManager Import Javax.sql.DataSource Import GROOVY.SQL.SQL def CLI = new Clibuilder (usage: ' Groovy querymssql.groovy-h-S sqlserverhost [-P port]-u userid-p password-v VA Lue-t textfile queryfile [queryfile] ... ') cli.h (longopt: ' Help ', ' usage information ') Cli.s (argname: ' servername ', longopt: ' Server ', Args:1, Required:true, type:gstring, ' sqlserverhost ') CLI. P (argname: ' Port ',

); 　　　 } E.printstacktrace (); 　　　　　　　 finally { try { if (fs!=null) { Fs.close (); 　　　　　　　 if (wb!=null) { Wb.close () } catch (IoexcePtion e) {//TODO auto-generated catch block E.printstacktrace (); } Return RETN } The code above is a piece of code that I read from an Excel document using the JXL API, and in order to focus on what we're talking about, I'm going to delete a section of the code. In this way, we can see clearly the try...catch statements in the code, and the role t

When I execute: Curl-xpost ' localhost:9200/test/type1/1/_update '-d ' { "script": "Ctx._source.text = \" Some text\ ""} " Elasticsearch scripts of type [inline] was present, operation [UPDATE] and Lang [groovy] are disabled such errors Solution added in Elasticsearch.yml Script.inline:on Script.indexed:on Reboot can Original: Exception in thread "main" java.lang.IllegalArgumentException:script.disable_dynamic are not a supported sett

Groovy in Action (Chinese version) The 136th page explicitly says closure's this point closure himself. And this is also understood by the author from the code comment: Class mother{int field = 1int foo () {Return 2}Closure Birth (param) {def local = 3def closure = {caller->[ThisFieldFoo (),LocalParamCallerThis.owner]}return closure}}Mother Julia = new mother ()Closure = Julia.birth (4)Context = Closure.call (this)println context[0].class.name//(4) Sc

Decorate model believes that we are familiar with, is a "bangoffour" in one of the most commonly used mode, the realization is quite simple. If someone is unfamiliar, take a look at the decorate model of groovy exploration, which has an example to follow in this article. This example is a classic example of coffee in a café, coffee with original coffee, and a variety of additions depending on the taste of the customer, such as ice, milk, sugar, and s

In fact, blocking is used like the last example in the groovy Mop 13 interceptor Three (1), which is not used much, but is more about deciding whether to use interceptors in a customer who uses interceptors. Or the example in the previous article: class Hello { def hello(name) { "hello,$name" } } We are now explicitly intercepting all the methods in the class, and the Interceptor is as follows: class AllInterceptor implements Interceptor{ Object

In this series of Groovy Quest Mop Nine interceptor, we have detailed the various aspects of a simple interceptor class, allowing us to initially have the basis of interceptors. This article needs to further implement our AOP programming with interceptor classes, based on the previous interceptor class. First of all, in the first installment of this series, the methods we intercept are fixed. Now, we need to extend it to a user of the Interceptor cla

")} }Test Result:Tue Oct 17:46:18 CST 2015:info:startingtue Oct 17:46:18 CST 2015:info:earth circletue Oct 17:46:18 CST 2015:I Nfo:jupiter circletue Oct 17:46:18 CST 2015:info:mars circletue Oct 17:46:18 CST 2015:info:*************** Tue Oct 17:46:18 CST 2015:info:jupiter circletue Oct 17:46:18 CST 2015:info:jupiter Circletue Oct 17:46:18 CST 2015:info:mars circletue Oct 17:46:18 CST 2015:info:******************************* Tue Oct 17:46:18 CST 2015:info:pluto circletue Oct 17:46:18 CST

Iteration:def names = ["Sky", "Lily", "Tom"]names.foreach {println it.touppercase ()}map = [' A ': 1, ' B ': 2]map.each {key, value-GT Map[key] = value * 2}assert map = = [' A ': 2, ' B ': 4]//result Skylilytom trueCallbackdef Houston (Closure doit) {(10..1). Each {count--, doit (count)}}houston {println It}Higher order functionsSpecial Control logicDynamic method definitionResource allocationThread handlingThis article is from the "Java Small Novices" blog, be sure to keep this source http://le

Package Ch5numbers = [11, 12, 13, 14]def stafftel = [' Ken ': 2745, ' John ': 2746, ' Jessie ': 2772]println ("Numbers:${numbers}")//the contents of the double quotation mark will be interpretedprintln (' Staff Telephone:${stafftel} ')//the contents of the single quotation mark will not be interpretedprintf (' My name is Ken ', [])printf (' My name is ken\n ', [])def a = 10def b = 15printf ("The sum of%d and%d is%d \ n", [A, B, a + b])def x = 1.234Def y = 56.78printf ('%f from%f gives%f \ n ', [

,// program End Timer also ends automatically), note that There is also a timer class in the javax.swing// package, if you use the Swing package in import,// you should pay attention to the name conflict. timertasktask=newtimertask () {publicvoidrun () { ...//the code that needs to be executed every time you put it in here. }};//The following are several ways to schedule a task: timer.schedule (task,time);// Time is a date type: Executed once at the specified times. timer.schedule (task,firsttim

= [1,3,4,1,8,9,2,6]println lst.find{it > 4} output Result: 8//Find list element, return all eligible elements LST = [1,3,4,1,8,9,2,6]println lst.findall{it > 4} output result: [8,9,6]//Find list element, return element subscript lst = [1,3,4,1,8,9,2,6]println lst.findallindexof{it = = 4} output Result: 2 Sort by using listdef ids = [5,6,3,7,1,4,9] //Can be considered Comparator sort ids.sort {a,b-> return-a.compareto (b) } println IDs //Natural sort ids.sort (); println IDs output

Hash:HashSet set = new HashSet () Set.add ("India") Set.add ("USA") Set.add ("China") log.info "set size is:" + set.size () set.add ("C Hina ") Log.info" Set size is: "+ set.size () Iterator iter = Set.iterator (); Log.info" If have Next: "+iter.hasnext () log.in Fo Iter.next () while (Iter.hasnext ()) {Log.info iter.next ()}Result:Tue June 15:02:49 CST 2015:info:set size Is:3Tue June 15:02:49 CST 2015:info:set size Is:3Tue June 15:02:49 CST 2015:info:if has next:trueTue June 15:02:49 CST 2015:i