bean-properties.xml:

<?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:lang="http://www.springframework.org/schema/lang"xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsdhttp://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-4.0.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd"><!-- properties引用外部文件属性 --><context:property-placeholder location="classpath:db.properties"/><bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"><property name="user" value="${user}"></property><property name="password" value="${password}"></property><property name="driverClass" value="${driverClass}"></property><property name="jdbcUrl" value="${jdbcUrl}"></property></bean><bean id="adress" class="com.cwh.spring.bean.spel.Adress"><property name="location" value="#{'北方'}"></property><property name="city" value="北京"></property></bean><bean id="car" class="com.cwh.spring.bean.spel.Car"><property name="brand" value="东风"></property><!-- 使用SpEL引用类的静态属性 --><property name="tyrePerimeter" value="#{T(java.lang.Math).PI*10}"></property><property name="price" value="100"></property></bean><bean id="person" class="com.cwh.spring.bean.spel.Person"><property name="name" value="bibibibi"></property><!-- SpEL，使用别的bean的属性 --><property name="city" value="#{adress.city}"></property><!-- SpEl引用别的bean，类似ref --><property name="car" value="#{car}"></property><!-- SpEL,使用运算符 --><property name="info" value="#{car.price >= 150 ? '豪车':'普通车'}"></property></bean>
</beans>

db-properties:

user=root
password=zeng
driverClass=com.mysql.jdbc.Driver
jdbcUrl=jdbc:mysql://localhost:3306/cwhtest?useUnicode=true&characterEncoding=UTF-8

实体类（需要补上get(),set(),toString()）：

public class Adress {private String city;private String location;
}public class Car {private String brand;private double price;private double tyrePerimeter;
}public class Person {private String name;private Car car;//根据adress确定private String city;//根据car的price来决定private String info;
}

测试类：

package com.cwh.spring.bean.spel;import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;public class main {public static void main(String[] args){ApplicationContext applicationContext = new ClassPathXmlApplicationContext("beans-spel.xml");Adress adress = (Adress) applicationContext.getBean("adress");Car car = (Car) applicationContext.getBean("car");Person person = (Person) applicationContext.getBean("person");System.out.println(person);}
}