spring List,Set,Map,Properties,array的使用配置文件注入实例
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="chinese" class="Bean.collections.Chinese">
<!--List 注入例子-->
<property name="schools">
<list>
<value>小学</value>
<value>中学</value>
<value>大学</value>
</list>
</property>
<!--Properties 注入例子-->
<property name="health">
<props>
<prop key="血压">正常</prop>
<prop key="身高">178</prop>
</props>
</property>
<!--Map 注入例子-->
<property name="scores">
<map>
<entry key="数学">
<value>88</value>
</entry>
<entry key="语文">
<value>99</value>
</entry>
</map>
</property>
<!--Map 例子-->
<bean id="accountConfig" class="java.util.HashMap">
<constructor-arg>
<map>
<entry key="accountResourceSQL">
<value>SELECT * FROM ABC</value>
</entry>
</map>
</constructor-arg>
</bean>
<!-Set 注入例子-->
<property name="axes">
<set>
<value>字符串斧子</value>
<!-- 用嵌套bean定义属性 -->
<bean class="Bean.collections.WoodAxe"/>
<!-- 引用bean作为属性 -->
<ref local="steelaxe"/>
</set>
</property>
<!--array 注入例子-->
<property name="array">
<list>
<value>array1</value>
<value>array2</value>
</list>
</property>
</bean>
<bean id="steelaxe" class="Bean.collections.SteelAxe"></bean>
</beans>
实例java代码：
package Bean.collections;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import Bean.collections.Person;
public class Chinese implements Person {
private List schools=new ArrayList();
private Map scores=new HashMap();
private Properties health=new Properties();
private Set axes=new HashSet();
public Set getAxes() {
return axes;
}
public void setAxes(Set axes) {
this.axes = axes;
}
public Properties getHealth() {
return health;
}
public void setHealth(Properties health) {
this.health = health;
}
public List getSchools() {
return schools;
}
public void setSchools(List schools) {
this.schools = schools;
}
public Map getScores() {
return scores;
}
public void setScores(Map scores) {
this.scores = scores;
}
public void useAxe() {
System.out.println(schools);
System.out.println(scores);
System.out.println(axes);
System.out.println(health);
}
}
jdbc.properties配置文件实例：
/WEB-INF/jdbc.properties
jdbc.driver=org.postgresql.Driver
jdbc.url=jdbc:postgresql://localhost/test
jdbc.user=postgres
jdbc.password= Bean配置如下：
<bean id="propertyConfigurer"class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location">
<value>/WEB-INF/jdbc.properties</value>
</property>
</bean> 或者使用多个配置文件：
<bean id="propertyConfigurer"class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>/WEB-INF/jdbc.properties</value>
</list>
</property>
</bean> applicationContext.xml中数据源配置:
<bean id="dataSource"class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName">
<value>${jdbc.driver}</value>
</property>
<property name="url">
<value>${jdbc.url}</value>
</property>
<property name="username">
<value>${jdbc.user}</value>
</property>
<property name="password">
<value>${jdbc.password}</value>
</property>
</bean>
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