xml可以定义spring初始化Bean的配置，具体语法可以看对应的xsd文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
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
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
....
</beans>
<!--配置User对象创建-->
<bean id="user" class="com.spring5.User"></bean>
<!--set方法注入属性-->
<bean id="book" class="com.spring5.Book">
<property name="bname" value="WeiSanJin"></property>
<property name="bauthor" value="WeiSanJin"></property>
</bean>
<bean id="orders" class="com.spring5.Orders">
<constructor-arg name="oname" value="WeiSanJin"></constructor-arg>
<constructor-arg name="address" value="WeiSanJin"></constructor-arg>
<!--可以使用 index代替name-->
</bean>
<bean id="userService" class="com.spring5.service.UserService">
<property name="userDao" ref="userDaoImpl"></property>
</bean>
// 配置dao对象
<bean id="userDaoImpl" class="com.spring5.dao.UserDaoImpl"></bean>
<!--可以改用外部bean的方式来写 其它bean对象就不能调用。-->
<bean id="emp" class="com.spring5.bean.Emp">
<property name="ename" value="WeiSanJin"></property>
<property name="genfer" value="WeiSanJin"></property>
<property name="dept">
<bean id="dept" class="com.spring5.bean.Dept">
<property name="dname" value="保安部"></property>
</bean>
</property>
</bean>
//方法一：转义字符
<property name="address" value="<北京&dt;"></property>
//方法二：CDATA
<property name="address">
<value>
<![CDATA[<北京>]]>
</value>
</property>
<bean id="stu" class="com.spring5.collectionytpe.Stu">
<!--数组类型属性注入 -->
<property name="courses">
<array>
<value>Java课程</value>
<value>数据库课程</value>
</array>
</property>
<!--list类型属性注入 -->
<property name="list">
<list>
<value>张三</value>
<value>小三</value>
</list>
<list>
<ref bean="course1"></ref>
<ref bean="course2"></ref>
</list>
</property>
<!--map类型属性注入 -->
<property name="maps">
<map>
<entry key="Java" value="java"></entry>
<entry key="PHP" value="php"></entry>
</map>
</property>
<!--set类型属性注入 -->
<property name="sets">
<set>
<value>Mysql</value>
<value>Redis</value>
</set>
</property>
</bean>
<!-- 创建多个course对象-->
<bean id="course1" class="com.spring5.collectionytpe.Course">
<property name="cname" value="String"></property>
</bean>
<bean id="course2" class="com.spring5.collectionytpe.Course">
<property name="cname" value="String"></property>
</bean>
beans只能存在bean对象，不能有list等集合标签。而util相当于将bean中的集合属性property抽出来单独当做一个bean对象操作，通过它就可以生成集合对象供其它bean引用。
spring配置文件中引入名称空间util
<?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:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<util:list id="bookList">
<value>三国演义</value>
<value>水浒传</value>
<value>西游记</value>
<value>红楼梦</value>
</util:list>
<bean id="book" class="com.spring5.collectionytpe.Book">
<property name="list" ref="bookList"></property>
</bean>
<!--实现自动装配
bean标签属性autowire，配置自动装配
autowire属性常用两个值：
byName根据属性名称注入，注入值bean的id值和类属性名称一样
byType根据属性类型注入
-->
<bean id="emp" class="com.spring5.autowire.Emp" autowire="byName">
</bean>
<bean id="dept" class="com.spring5.autowire.Dept"></bean>
<?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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 引入外部属性文件-->
<context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
<!-- 配置连接池-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${prop.driverClass}"></property>
<property name="url" value="${prop.url}"></property>
<property name="username" value="${prop.userName}"></property>
<property name="password" value="${prop.password}"></property>
</bean>
<context:component-scan base-package="com.zhh.service,com.zhh.DAO"></context:component-sacn>
<context:component-scan base-package="com.spring5"/>
<!--示例1
use-default-filters="false" 表示现在不使用默认filter，自己配置fillter
context:include-filter,设置扫描哪些内容
-->
<context:component-scan base-package="com.spring5" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!--示例2
下面配置扫描包所有内容
context:exclude-filter：设置哪些内容不进行扫描
-->
<context:component-scan base-package="com.spring5">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>