Spring: XML Schema-based configuration (ii)

[This tutorial is translated from the official spring document and is properly deleted]

Continuation of the previous article:

<util:list/>

If you were to assemble a collection (List), you would write this:

<!--creates a Java.util.List instance with values loaded from the supplied sourceList--><bean id= "emails" class = "Org.springframework.beans.factory.config.ListFactoryBean" >    <property name= "SourceList" >        < list>            <value>[email protected]</value>            <value>[email protected]</value>            <value>[email protected]</value>            <value>[email protected]</value>        </list>    </property></bean>

Now you can:

<!--creates a java.util.List instance with the supplied values--><util:list id= "emails" >    <value> [Email protected]</value>    <value>[email protected]</value>    <value>[email protected]</value>    <value>[email protected]</value></util:list>

You can also customize the implementation of the list, such as <util:list id= "emails" list-class= "java.util.LinkedList" >

(The ID is set to reuse the collection)

The usage of Map,set is similar here not to introduce.

It is necessary to note that both,<list> and <set> can assemble any implementation or array of java.util.Collection.

referencing other beans,

<list>   <ref bean= "..."/><list>

Members of the list also include:<value><bean><null/>

For map,

<map>    <entry key= "GUITAR" value= "..."/>    <entry key= "cymbal" ref-value= "..."/></map >

• Jee Mode

JEE tags are designed to handle Java EE-related configurations, such as querying Jndi objects and defining references to EJBS. of course, you have to add a namespace before using it.

<?xml version= "1.0" encoding= "UTF-8"? ><beans xmlns= "Http://www.springframework.org/schema/beans"    Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"    xmlns:jee= "Http://www.springframework.org/schema/jee "Xsi:schemalocation="        Http://www.springframework.org/schema/beans http://www.springframework.org/schema/ Beans/spring-beans.xsd        Http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/ Spring-jee.xsd "> <!--bean definitions here--></beans>

The following example is a data source defined using Jndi,before you write this:

<bean id= "DataSource" class= "Org.springframework.jndi.JndiObjectFactoryBean" >    <property name= " Jndiname "value=" Jdbc/mydatasource "/></bean><bean id=" Userdao "class=" Com.foo.JdbcUserDao ">    <!--Spring would do the cast automatically (as usual)-    <property name= "DataSource" ref= "DataSource"/>& Lt;/bean>

Now, you can:

<jee:jndi-lookup id= "DataSource" jndi-name= "Jdbc/mydatasource"/><bean id= "Userdao" class= " Com.foo.JdbcUserDao >    <!--Spring would do the cast automatically (as usual)-    <property name= " DataSource "ref=" DataSource "/></bean>

The following is a more complex configuration:

<jee:jndi-lookup id= "Simple"        jndi-name= "Jdbc/mydatasource"        cache= "true"        resource-ref= "true"        Lookup-on-startup= "false"        expected-type= "Com.myapp.DefaultFoo"        proxy-interface= "Com.myapp.Foo"/>

Spring: XML Schema-based configuration (ii)