2.spring注入的方式（设值注入和构造注入）

给cc.springIoc.test.TestDI类中的属性注入值

• 如果对象的属性的值是一个对象类型,<property name="ink" ref="gi"></property>
  用ref赋值,如果是String类型或基本数据类型,用value 赋值
  name是属性的名字,ref或value是属性的值
• 数组类型和List集合类型的注入方式一样

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-3.2.xsd
	http://www.springframework.org/schema/aop
	http://www.springframework.org/schema/aop/spring-aop-3.2.xsd">

		<!-- 注入不同类型的值 -->
	<bean id="tdi" class="cn.cc.springIoc.test.TestDI">
		<!-- XML有些字符是关键字
			使用ExceptionLanguage的<![CDATA[特殊值]]>
		 -->
		 <property name="scharacter1">
		 	<value><![CDATA[P&G]]></value>
		 </property>
		 
		 <property name="scharacter2">
		 	<value>P&amp;G</value>
		 </property>
		 
		 <!-- 对象类型 -->
		 <property name="printer">
		 	<bean class="cn.cc.springIoc.printer.Printer">
		 	</bean>
		 </property>
		 
		  <!-- 集合对象类型 -->
		 <!-- List<String> -->
		 <property name="listStr">
		 	<list>
		 		<value>篮球</value>
		 		<value>足球</value>
		 		<value>排球</value>
		 	</list>
		 </property>
		 
		 <!-- List<Printer> listPrinter -->
		 <property name="listPrinter">
			<list>
		 		<bean id="h1" class="cn.cc.springIoc.printer.Printer"></bean>
		 		<bean id="h2" class="cn.cc.springIoc.printer.Printer">
		 			<property name="ink" ref="gi"></property>
		 			<property name="paper" ref="a4"></property>
		 		</bean>
		 	</list>		 	
		 </property>
		 
		 
		 <!-- 数组类型  String[] aryStr -->
		 <property name="aryStr">
		 	<list>
		 		<value>篮球</value>
		 		<value>足球</value>
		 		<value>排球</value>
		 	</list>
		 </property>
		 
		 <!-- 对象数组类型  Printer[] aryObj-->
		 <property name="aryObj">
		 	<list>
		 		<bean id="hp1" class="cn.cc.springIoc.printer.Printer"></bean>
		 		<bean id="hp2" class="cn.cc.springIoc.printer.Printer">
		 			<property name="ink" ref="gi"></property>
		 			<property name="paper" ref="a4"></property>
		 		</bean>
		 	</list>
		 </property>
		 
		 <!-- Map类型  Map<String, String> mapStr -->
		 <property name="mapStr">
		 	<map>
		 		<entry>
		 			<key>
		 				<value>bb</value>
		 			</key>
		 			<value>篮球</value>
		 		</entry>
		 		<entry>
		 			<key>
		 				<value>fb</value>
		 			</key>
		 			<value>足球</value>
		 		</entry>
		 	</map>
		 </property>
		 
		 
		<!-- 值为对象的Map类型  Map<String, Printer> mapPrinter -->
		 <property name="mapPrinter">
		 	<map>
		 		<entry>
		 			<key>
		 				<value>c1</value>
		 			</key>
		 			<bean id="canon1" class="cn.cc.springIoc.printer.Printer"></bean>
		 		</entry>
		 		<entry>
		 			<key>
		 				<value>c2</value>
		 			</key>
		 			<bean id="canon2" class="cn.cc.springIoc.printer.Printer"></bean>
		 		</entry>
		 	</map>
		 </property>
		 
		 <!-- 字符串值""   String emptyValue-->
		 <property name="emptyValue">
		 	<value></value>
		 </property>
		 
		 <!-- 字符串值null  String nullValue -->
		 <property name="nullValue">
		 	<value>null</value>
		 </property>
	</bean>
	
</beans>

---

构造注入方式

applicationContext.xml

UserServiceImol.java