public class Customer { @Value("#{addressBean.country}") private String country;
package com.yiibai.core; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Component; @Component("customerBean") public class Customer { @Value("#{addressBean}") private Address address; @Value("#{addressBean.country}") private String country; @Value("#{addressBean.getFullAddress('yiibai')}") private String fullAddress; //getter and setter methods @Override public String toString() { return "Customer [address=" + address + "\n, country=" + country + "\n, fullAddress=" + fullAddress + "]"; } }
package com.yiibai.core; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Component; @Component("addressBean") public class Address { @Value("GaoDeng, QiongShang") private String street; @Value("571100") private int postcode; @Value("CN") private String country; public String getFullAddress(String prefix) { return prefix + " : " + street + " " + postcode + " " + country; } //getter and setter methods public void setCountry(String country) { this.country = country; } @Override public String toString() { return "Address [street=" + street + ", postcode=" + postcode + ", country=" + country + "]"; } }
執行結果
Customer obj = (Customer) context.getBean("customerBean"); System.out.println(obj);
輸出結果
Customer [address=Address [street=GaoDeng, QiongShang, postcode=571100, country=CN] , country=CN , fullAddress=yiibai : GaoDeng, QiongShang 571100 CN]
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> <bean id="customerBean" class="com.yiibai.core.Customer"> <property name="address" value="#{addressBean}" /> <property name="country" value="#{addressBean.country}" /> <property name="fullAddress" value="#{addressBean.getFullAddress('yiibai')}" /> </bean> <bean id="addressBean" class="com.yiibai.core.Address"> <property name="street" value="GaoDeng, QiongShang" /> <property name="postcode" value="571100" /> <property name="country" value="CN" /> </bean> </beans>