分模块开发配置

一、在加载配置文件的时候，加载多个

准备两个配置文件分别为 applicationContext.xml applicationContext2.xml

package com.itzheng.spring.demo5; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /* * 复杂类型的属性注入 */ public class SpringDemo5 { @Test public void demo1() { ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml","applicationContext2.xml"); CollectionBean collectionBean = (CollectionBean) applicationContext.getBean("collectionBean"); System.out.println(collectionBean); } }

二、在一个配置文件当中引入多个配置文件

import

package com.itzheng.spring.demo5; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /* * 复杂类型的属性注入 */ public class SpringDemo5 { @Test public void demo1() { ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); CollectionBean collectionBean = (CollectionBean) applicationContext.getBean("collectionBean"); System.out.println(collectionBean); } }

三、完成测试代码

package com.itzheng.spring.demo5; import java.util.Arrays; import java.util.List; import java.util.Map; import java.util.Set; /* * 集合属性的注入： */ public class CollectionBean { private String[] arrs; private List<String> list; private Set<String> set; private Map<String, String> map; public void setArrs(String[] arrs) { this.arrs = arrs; } public void setList(List<String> list) { this.list = list; } public void setSet(Set<String> set) { this.set = set; } public void setMap(Map<String, String> map) { this.map = map; } @Override public String toString() { return "CollectionBean [arrs=" + Arrays.toString(arrs) + ", list=" + list + ", set=" + set + ", map=" + map + "]"; } }

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:p="http://www.springframework.org/schema/p" 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.xsd"> <!-- Spring的属性注入的方式 --> <!-- 构造方法的方式 --> <bean id="car" class="com.itzheng.spring.demo4.Car"> <constructor-arg name="name" value="宝马" /> <constructor-arg name="price" value="800000" /> </bean> <bean id="boos" class="com.itzheng.spring.demo4.Boos"> <constructor-arg name="name" value="李四" /> <constructor-arg name="car" ref="car" /> </bean> <!-- set方法方式符注入 --> <!-- <bean id="car2" class="com.itzheng.spring.demo4.Car2"> <property name="name" value="奔驰"></property> <property name="price" value="1000000"></property> </bean> --> <!-- SpEL的属性注入 --> <bean id="carInfo" class="com.itzheng.spring.demo4.CarInfo"> </bean> <bean id="car2" class="com.itzheng.spring.demo4.Car2"> <property name="name" value="#{carInfo.name}"></property> <property name="price" value="#{carInfo.calculatorPrice()}"></property> </bean> <bean id="employee" class="com.itzheng.spring.demo4.Employee"> <property name="name" value="#{'武九' }"></property> <property name="car2" value="#{car2}"></property> </bean> <import resource="applicationContext2.xml"/> </beans>

applicationContext2.xml

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:p="http://www.springframework.org/schema/p" 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.xsd"> <!-- Spring数组属性的注入 --> <!-- 注入数组类型 --> <bean id="collectionBean" class="com.itzheng.spring.demo5.CollectionBean"> <!-- 注入数组类型 --> <property name="arrs"> <list> <value>王西</value> <value>赵娜</value> <value>李武</value> </list> </property> <!-- 注入list集合 --> <property name="list"> <list> <value>张三</value> <value>李四</value> <value>登峰</value> </list> </property> <!-- 注入set集合 --> <property name="set"> <set> <value>aaa</value> <value>bbb</value> <value>ccc</value> <value>ddd</value> </set> </property> <property name="map"> <map> <entry key="111" value="iiii"></entry> <entry key="222" value="zzz"></entry> <entry key="333" value="bbb"></entry> <entry key="444" value="ddd"></entry> </map> </property> </bean> </beans> package com.itzheng.spring.demo5; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /* * 复杂类型的属性注入 */ public class SpringDemo5 { @Test public void demo1() { ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); CollectionBean collectionBean = (CollectionBean) applicationContext.getBean("collectionBean"); System.out.println(collectionBean); } }