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: class Personvalidates_presence_of :namehas_many :addressesendView raw Person. RB this gist is brought to you using Simple gist embed. Overall, I find myself writing more dynamic code in ruby that I wocould do in groovy. For instance, I can generate classes on the fly: class Person View raw Struct. RB this gist is brought to you using Simple gist embed. It's possible to write similar code in groovy, bu
Oracle announces that it will participate in the Grails Open source program, helping to improve the productivity of Java program developers by closely matching the groovy instruction language.Grails builds on open source technologies such as spring, Hibernate, and Sitemesh, providing a rails-like platform for seamless integration with the Java platform. Groovy is
Taggroovy=NewTag (Name: "Groovy") def taggrails=NewTag (Name: "Grails")) user.addtotags (Taggroovy) user.addtotags (taggrails) user.save (failOnError:true) When:"The user tags fresh posts"def groovypost=NewPost (content: "A Groovy Post") user.addtoposts (groovypost) groovypost.addtotags (Taggroovy) def Bothpos T=NewPost (content: "A
Object-oriented in Groovy and Groovy object-oriented As mentioned above, groovy supports scripts and classes. The previous section briefly describes the relationship between scripts and classes. This section mainly introduces the knowledge of classes in groovy, that is, object-oriented knowledge.1. Type 1.1 Original Ty
Ruby on rail Despite the ongoing interest in software engineering, enterprise-class development rooms still have a lot of mistrust. Why? "Can the scripting language framework also fit into enterprise applications?" "The main argument for ROR is that they lack enterprise-class services (such as distributed transactions, messages, etc.)." For many businesses, platforms without these services are not considered at all. Grail is a fast enterprise-level rapid application development tool. It is based
Unit to develop a Web program, I do not understand PHP, Java, the emergency cramming Internet to find a bit, said Grails development how fast, and so on. A trial, a few minutes on the use of scaffold (scaffolding) developed a program, but the effect is full English, database fields do not accept Chinese. Online with the Chinese field, change the field display related articles, posts did not, had to buy the province science and Technology bookstore onl
Release date:Updated on: Affected Systems:VMWare Grails 2.xVMWare Grails 1.xDescription:--------------------------------------------------------------------------------Cve id: CVE-2012-1833 Grails is an open-source framework for rapid Web application development. Based on the Groovy programming language,
Three-day Dragon Boat Festival holiday, I learned jruby and groovy. At last I thought groovy was easy to use. Using groovy is a bit like writing basic, and there are no more rules like Java. During development, code is used to describe the execution logic, rather than writing a large number of classes that comply with Java "patterns" to implement certain logic fu
Idea error Cannot compile Groovy files: no Groovy library is defined for module 'XX', compilegroovy0. Cause description Clone the original project (the new project is generally not available)IntelliJ IDEA associates objects suffixed with groovy but does not configure Groovy libraries.1. Solution to cause 1 Cause:
1. Install Eclipse PluginLaunch Eclipse, click Help, Install New software ...In the pop-up window, click: Add ...Groovy Plugin's address: http://dist.springsource.org/release/GRECLIPSE/e4.4/Other versions of Eclipse can be reached: Https://github.com/groovy/groovy-eclipse/wikiDownload the corresponding versionIn the pop-up Install window, fill in the following:Na
thinking in Groovy the first chapter simplifies Java code with groovy Author: Chszs, reprint should be indicated. Blog home: Http://blog.csdn.net/chszs 1. Groovy's installation is currently in the latest version of Groovy is 2.1.2 version, download address: http://groovy.codehaus.org/DownloadAfter downloading, unzip groovy
in the command line and create it successfully. If creation fails, check groovy/target/test-reports.6) Done! Set the groovy Environment1. Download groovy-binary-1.5.6.zip and decompress it. For example, C:/groovy2) set the policy_home environment variable. in the Windows operating system, it is as follows:· Add a system variable named yy_home and set the value
_ The Convention is better than configuration __, and it is not unnecessary. Some necessary things must be configured, such as the lifeline of the database. In grails, what we need to configure is mainly in the 'conf' directory # 'Datasource. Groovy' Database Configuration # 'Datasource '-- Database Configuration ### 'Driverclassname' If it is MySQL, use its JDBC bar 'com. MySQL. JDBC. Driver' ### 'Username
It has been said before that many people choose groovy because of their low learning costs, as long as you have the basics of Java and learn quite quickly. In contrast, Scala (another JVM dynamic language) syntax is more difficult to learn (though not yet learned, but online reviews are).As a Java programmer, I'm going to get myself groovy.From JDK to GDK1. As the core of Java development, JDK is the part that all Java programmers need to learn and us
In the process of using Java, it is a little more difficult than the C # syntax, such as exceptions and get set. After all, Java has developed a lot longer than C, many problems were not taken into account at the beginning of the design. In order to forward compatibility, we had to keep a certain historical burden (such as generic processing, Java's erasure implementation is the subsequent compatibility considerations ). However, it is very convenient to use
1. spring-security-core 2. spring-security-ui 3. famfamfam, mail, jquery-ui, jquery, webxml 4. cal-client Modify the password encryption section of UserController and RegisterController in spring-security-ui. Add the following parameters to config. groovy Grails. plugins. springsecurity. userLookup. userDomainClassName = 'pk0. secuser' Grails. plugins. springsecu
command line and build successfully. If Setup fails, view Groovy/target/test-reports6) Done. Set up Groovy Environment1) Download Groovy-binary-1.5.6.zip, decompression. such as: C:/groovy2 Set the GROOVY_HOME environment variable, under the Windows operating system, as follows:· Add a system variable named Groovy_home, set its value to C:/
Groovy grails SCI Share First tutorial 1, download tool: Http://www.springsource.org/downloads/sts-ggts Direct address: Spring-tool-suite-3.0.0.release-e4.2-win32-installer.exe 2. Install and Open 3. Install Groovy and Grails plugins 4. Create a Grails project
/*. jpg" (controllers: "image ")' * '"/Images/controllers" (controllers: "image")'. The effect is the same as the preceding one. The variable name is used differently. * You can also use ** to map Multi-Level directories: '"/images/**. jpg" (controllers: "image ")' * A better method is: '"/images/$ name **. jpg "(controllers:" image ") ', so that the matched path will be placed in Params. name. _ In ing, we can also specify which URLs do not participate in ing. In urlmappings.
Let's look at an example of a Java regular expression.Import Java.util.regex.matcher;import Java.util.regex.pattern;public class Testmatch {public static void main ( String[] (args) { pattern pattern = pattern.compile ("g.*"); Matcher Matcher = Pattern.matcher ("Groovy"); System.out.println (Matcher.matches ());} }In fact, this code means that groovy is not a match for regular
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