一、基于schema格式的注入
1、基本的注入方式 （属性注入方式）
根据setXxx()方法进行依赖注入，Spring只会检查是否有setter方法，是否有对应的属性不做要求
<bean id="student" class="com.lq.ioc.Student">
<property name="name" value="zhansan"></property>
<property name="age" value="20"></property>
</bean>
<bean id="student" class="com.lq.ioc.Student">
<property name="name">
<value>zhangsan</value>
</property>
<property name="age">
<value>20</value>
</property>
</bean>
2.构造函数方式注入
<bean id="student1" class="com.lq.ioc.Student">
<constructor-arg name="name" value="zhangsan"></constructor-arg>
<constructor-arg name="age" value="20"></constructor-arg>
</bean>
<bean id="student1" class="com.lq.ioc.Student">
<constructor-arg type="java.lang.String"><value>lisi</value></constructor-arg>
<constructor-arg type="int"><value>15</value></constructor-arg>
</bean>
<bean id="student1" class="com.lq.ioc.Student">
<constructor-arg index="0" value="zhangsan"></constructor-arg>
<constructor-arg index="1" value="21"></constructor-arg>
</bean>
3.当注入的属性中含有xml中的特殊字符时，如： < > & " '
1.用<![CDATA[<wangwu>]]>
<bean id="student1" class="com.lq.ioc.Student">
<constructor-arg index="0">
<value><![CDATA[<wangwu>]]></value>
</constructor-arg>
<constructor-arg index="1" value="21"></constructor-arg> </bean>
2.用转义字符
<bean id="student1" class="com.lq.ioc.Student">
<property name="name">
<value><wang></value>
</property>
<property name="age" value="11"></property>
</bean>
4.引用其它bean
<bean id="school" class="com.lq.ioc.School"/>
<bean id="student1" class="com.lq.ioc.Student">
<property name="name">
<value><wang></value>
</property>
<property name="age" value="11"></property>
<property name="school" ref="school"></property> </bean>
5.内部bean
<bean id="student1" class="com.lq.ioc.Student">
<property name="name">
<value><wang></value>
</property>
<property name="age" value="11"></property>
<property name="school">
<bean id="school" class="com.lq.ioc.School"/>
</property>
</bean>
6.往bean中注入null
<property name="name">
<null/>
</property>
7.集合类属性
List
<bean id="school" class="com.lq.ioc.School">
<property name="name" value="ql"/>
<property name="student">
<list>
<ref bean="student1"/>
</list>
</property>
</bean>
set
<bean id="school" class="com.lq.ioc.School">
<property name="name" value="ql"/>
<property name="student">
<set>
<ref bean="student1"/>
</set>
</property>
</bean>
map
<bean id="school" class="com.lq.ioc.School">
<property name="name" value="ql"/>
<property name="student">
<map>
<entry>
<key><ref bean="student1"/></key>
<value>1</value>
</entry> </map>
</property>
</bean>
props
<bean id="school" class="com.lq.ioc.School">
<property name="name" value="ql"/>
<property name="student">
<props>
<prop key="student1">zhansa</prop>
<prop key="student2">lisi</prop>
</props>
</property>
</bean>
8.通过util配置集合
<util:properties id="List1">
<prop key="student1">zzz</prop>
<prop key="student2">lisi</prop>
</util:properties>
9.工厂类注入
<bean id="studentFactory" class="com.lq.ioc.StudentFactory"/>
<bean id="student" factory-bean="studentFactory"
factory-method="createStudent"/>
静态工厂类注入
<bean id="student" class="com.lq.ioc.StudentFactory"
factory-method="createStudent"/>
10.配置数据源
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close"
p:driverClassName="com.mysql.jdbc.Driver"
p:url="jdbc:mysql://localhost/sampledb"
p:username="root"
p:password="123"/>