java bean convention

uses this constant to specify that the package as the root package for the search action is the default value of Action,actions,struts,strtus2Specifies that the action from the root package of the action is forbidden. The default value is FalseAssuming that the constant is specified, convention only searches for the action class from the package that starts with that constant value.Specifies the package excluded from the search action. The default va

http://www.cnblogs.com/qq78292959/archive/2011/03/17/2076948.htmlJava programming styles and naming conventionsThe purpose of defining the specification is to unify the code style of the project so that the program is readable.Name of package (all lowercase, defined by domain name)The Java package name is made up of lowercase words. However, due to the Java object-oriented programming feature, each

module name + operation. such as: user_view.jsp3. The JSP page corresponds to the action's meaning as much as possible, such as the userlistaction counterpart user_list.jspInterface:Use hump-style naming. In addition to nouns, you can also use adjectives to name (reflect their functional characteristics)Method:The rule is named after the verb, which is suitable for the hump type, but the biggest difference from the class name is that the first letter must be lowercaseVariable:Rules are nouns, a

Xproperty (), x is the variable name.Public Stringproperty Firstnameproperty () {return firstName;}Public Stringproperty Lastnameproperty () {return lastName;}}We will then create a observablelist to store the instance data for these person.Observablelist data = ...//Add the instance of person in anyway.3. Data Model and Table AssociationTable.setitems (data);Okay, now the data is tied to the table! Since our data is in observablelist, the table's view is automatically updated whenever there is

General Linux technology-Linux programming and kernel information. For details, see below. Type escalation Convention In addition to raising byt and short types to int type, java defines several types of promotion rules for expressions (type promotion rules ). first, as described earlier, the values of all byte and short types are upgraded to int. secondly, if an operand is of the long type, the entire exp

1.spring MVC returns JSON data and only needs to return a Java Bean object, as long as the Java Bean Object implements serialization Serializeable2.@RequestMapping (value = {"/actor_details"}, Method ={requestmethod.post}) @ResponseBody Publicresultobject actordetails (@RequestBody actordetailsrequest req) {logger.debu

Examples on the official website JSON-lib is a Java class package used to convert beans, maps, and XML into JSON and convert JSON back to bean and dynabean.: Http://json-lib.sourceforge.net/The third-party package is also required:Org. Apache. commons (version 3.2 or later)Org. Apache. oroNet. SF. ezmorph (ezmorph-1.0.4.jar)Nu. XOM1. ListJava code Boolean[] Boolarray =NewBoolean[] {True,False,True}; Json

, rather than the development of a scale to replace a set of software systems. Then there was an increase in protocol requirements, and there was aEnterprise Bean. EJB has made some demands on the basis of JavaBean, which is of course more complicated.POJOThere is a call Josh Mackenzie people think, EJB is too complex, there is no need to use every time, so invented a pojo,pojo is ordinary javabean, what is ordinary, and EJB corresponding.In short, th

Spring also has an abstract bean. You only need to set the abstract attribute to true in the configuration file. It does not configure the class attribute because it will not be instantiated. When the bean of another spring inherits the abstract bean, You need to configure its parent attribute. If the parent bean is co

Turn from: http://www.ibm.com/developerworks/cn/webservices/ws-springjava/ Overview As we all know, the Spring framework is a driving factor in the control reversal (IOC) or Dependency injection (DI) pattern, which is implemented through a container based configuration. In the past, Spring allows developers to use xml-based configurations to manage bean dependencies by leveraging application context XML files. This file is outside the application and

MaintenanceJava EE deployment MaintenanceWsee Maintenance Java persistence API 1.0 (ejb3 entity bean) in Java ee5, Entity Bean, as the persistent component in the EJB specification, will gradually become a historical term, entity beans, which are the most prevalent in the J2EE 4 specification, were pushed back i

jdbcconnect.executeupdate (SQL, id);}Query operationsStudent.setid (Rs.getInt ("Stuid"));Student.setname (Rs.getString ("username"));(5). If the above database, Java class variable type is consistent, the use of the correct method is still the error, it may be the following error:When I define the function public IntegerGetID (){return ID;} When you get an error.HTTP Status 500-javax.el.propertynotfoundexception:property ' id ' not readable on type

in a class setXXX(xx) :Public Classsetmethods (classAbove, you can see the ability of introspection in Java, for example, Class Method.getReturnType Method.getParameterTypes .Inject by constructor functionSimilar to the following in spring:You can inject dependent beans through constructor parameters into the target object:listIts implementation:Public Object Buildwithconstructor (String name, classThe use Conven