/*
    初始化的類。這里不需要添加任何注解
*/
public class InitData {
    @Autowired
    private UserService userService;
    /*
        初始化方法
    */
    public void inits(){
        System.out.println("初始化方法執(zhí)行.....");
        List<User> userList = userService.queryAllUser();
        System.out.println(userList.toString());
    }
}

<?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:p="http://www.springframework.org/schema/p"    
        xmlns:context="http://www.springframework.org/schema/context" 
        xmlns:mvc="http://www.springframework.org/schema/mvc"
        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 
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd"
    default-lazy-init="true"><!-- 默認(rèn)懶加載（延遲加載）：調(diào)用的時(shí)候才實(shí)例化   -->
    <!-- 啟動(dòng)注解掃描包，獲取bean -->
    <context:component-scan base-package="ws.spring.mybatis.service" />
    <!-- 引入數(shù)據(jù)源 -->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    <!-- 注入數(shù)據(jù)源 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverClass}"></property>
        <property name="jdbcUrl" value="${jdbc.url}"></property>
        <property name="user" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>
    <!-- 容器啟動(dòng)后執(zhí)行：需要執(zhí)行初始化方法，所以必須直接實(shí)例化，取消懶加載-->
    <bean id="initData" class="ws.spring.mybatis.init.InitData" init-method="inits"  lazy-init="false" />
</beans>

<bean id="initializingBean" class="cn.base.core.init.Initializing" init-method="init"></bean>

public class Initializing implements InitializingBean{ 
 private static final Logger logger = LoggerFactory.getLogger(Initializing.class); 
 // 方法一
 @Override
 public void afterPropertiesSet() throws Exception {
  logger.info(">>>>>>>> init start...");
 }
 
 public void init() {
  logger.info(">>>>>>>> 初始化...");
 }
}

@PostConstruct
public void initConstruct() {
 System.out.println("注解初始化...");
}

<filter>  
     <filter-name>filterServlet</filter-name>  
     <filter-class>cn.base.web.interceptor.FilterServlet</filter-class>  
</filter>
<filter-mapping>
    <filter-name>filterServlet</filter-name>
   <url-pattern>/*</url-pattern>
   <dispatcher>REQUEST</dispatcher>
</filter-mapping>

public class FilterServlet implements Filter { 
 @Override
 public void init(FilterConfig filterConfig) throws ServletException {
  System.out.println("FilterServlet 初始化");
 }
 
 @Override
 public void doFilter(ServletRequest request, ServletResponse response, FilterChain         
chain)
   throws IOException, ServletException {
  chain.doFilter(request, response);
 }
 
 @Override
 public void destroy() {  
 }
}