Webwork2.1.5 IOC container method using spring

Webwork2.1.5 use spring's IOC container method:

First, create several classes:
Application. Java, container. Java, springcontainer. Java, defaapplapplicationsetuplistener. Java, componentnotfoundexception. Java
Container. Java is the interface, and springcontainer. Java implements the container. Java interface.
The Code is as follows:

Application:
Package util;

/**
* @ Author Davin
* @ Since 2007-12-23
* @ Version $ revision: 1.1 $
*/
Public class application {
Private container;
Private Static application instance;

Private application (){

}

Public static application getinstance (){
If (instance = NULL)
Instance = new application ();
Return instance;
}

Public container getcontainer (){
Return container;
}
Public void setcontainer (container ){
This. Container = container;
}
}

Container:
Package util;

/**
* @ Author Davin
* @ Since 2007-12-23
* @ Version $ revision: 1.1 $
*/
Public interface container {
Public object getcomponent (Object key) throws componentnotfoundexception;

Public void reload ();

Public void autowirecomponent (Object bean );

Public void close ();
}

 

Springcontainer:

Package util;

Import java. util. locale;

Import javax. servlet. servletcontext;

Import org. springframework. Beans. Factory. config. autowirecapablebeanfactory;
Import org. springframework. Context. applicationcontext;
Import org. springframework. Context. Support. abstractapplicationcontext;
Import org. springframework. Web. Context. Support. webapplicationcontextutils;

/**
* @ Author Davin
* @ Since 2007-12-23
* @ Version $ revision: 1.2 $
*/
Public class springcontainer implements container {
Private Static applicationcontext;

Public springcontainer (servletcontext ){
This. applicationcontext = webapplicationcontextutils. getwebapplicationcontext (servletcontext );
}

Public springcontainer (applicationcontext ){
This. applicationcontext = applicationcontext;
}

/**
* @ Param key
* Component class type or component name
* @ Return @ throws
* Componentnotfoundexception
*/
Public object getcomponent (Object key) throws componentnotfoundexception {
If (applicationcontext = NULL)
Throw new illegalstateexception ("Spring application context has not been set ");
If (Key = NULL)
Throw new componentnotfoundexception ("the component key can not be null ");
If (Key instanceof class ){
String Names [] = applicationcontext. getbeannamesfortype (class) Key );
If (names = NULL)
Throw new componentnotfoundexception ("the container is unable to resolve single instance of" + (class) Key). getname ()
+ ", None instances found ");
If (names. Length = 0 | names. length> 1)
Throw new componentnotfoundexception ("the container is unable to resolve single instance of" + (class) Key). getname ()
+ ", Number of instances found was:" + names. Length );
Key = Names [0];
}
Return applicationcontext. getbean (key. tostring ());
}
Public static object getbean (string beanname ){
Return applicationcontext. getbean (beanname );
}

Public static string getmessage (string messagename ){
String MSG = applicationcontext. getmessage (messagename, null, locale. China );
Return MSG;
}
Public void reload (){
Close ();
(Abstractapplicationcontext) applicationcontext). Refresh ();
}

Public void autowirecomponent (Object bean ){
(Abstractapplicationcontext) applicationcontext). getbeanfactory (). autowirebeanproperties (bean, autowirecapablebeanfactory. autowire_by_name, false );
}

Public void close (){
(Abstractapplicationcontext) applicationcontext). Close ();
}

}

Componentnotfoundexception:

Package util;
/**
* @ Author Davin
* @ Since 2007-12-23
* @ Version $ revision: 1.1 $
*/
Public class componentnotfoundexception extends runtimeexception {

Public componentnotfoundexception (string message ){
Super (Message );
}

Public componentnotfoundexception (string message, throwable cause ){
Super (message, cause );
}
}

Defaultapplicationsetuplistener:
Package listener;

Import javax. servlet. servletcontextevent;
Import javax. servlet. servletcontextlistener;

Import util. Application;
Import util. springcontainer;

/**
* Defaultapplicationsetuplistener that sets up the environment so that
* Xwork and webwork can load data and information from spring. relies on
* Spring's {@ link org. springframework. Web. Context. contextloaderlistener} Having
* Been called first.
*
* @ Author Davin
* @ Since 2007-12-22
* @ Version $ revision: 1.1 $
*/
Public class defaultapplicationsetuplistener implements servletcontextlistener {

Public void contextinitialized (servletcontextevent event ){
Springcontainer Container = new springcontainer (event. getservletcontext ());
Application. getinstance (). setcontainer (container );
}

Public void contextdestroyed (servletcontextevent arg0 ){
// Do nothing
}

}

After writing the code, you need to modify the configuration file.
First, add web. xml:
<Listener>
<Listener-class>
Listener. defaultapplicationsetuplistener
</Listener-class>
</Listener>
It must be followed by a spring listener.
Followed by modifying webwork-default.xml
<Interceptor name = "component-autowire" class = "Interceptor. componentautowireinterceptor"/>
Add the listener to the default listening range.

After the preceding configuration, you can write a simple service class.
Package Service. impl;

Import java. util. List;

Import service. loginservice;
Import Dao. abstractservice;
Import domain. admin;

Public class loginserviceimpl extends actservice implements loginservice {
Public Admin findadmin (string username ){
List <admin> List = This. gethibernatetemplate (). Find ("from Admin A where a. Username = '" + username + "'");
If (list. Size ()> 0)
Return list. Get (0 );
Else
Return NULL;
}
}
In the spring configuration file:
<Bean id = "loginservice" parent = "basetxproxy" Singleton = "false">
<Property name = "target">
<Bean class = "service. impl. loginserviceimpl" autowire = "byname"/>
</Property>
</Bean>

Write an action class:
Package action;

 

Import service. loginservice;
Import com. opensymphony. xwork. actionsupport;

Public class baseaction extends actionsupport {

Private loginservice;

Public loginservice getloginservice (){
Return loginservice;
}

Public void setloginservice (loginservice ){
This. loginservice = loginservice;
}

Public String execute () throws exception {
Return success;
}
}

Xwork. xml file
<Action name = "Index" class = "Action. baseaction">
<Result name = "success" type = "freemarker">/login. FTL </result>
</Action>
In this way, you can use