Spring 全家桶之 Spring Web MVC（十）- Spring、Spring MVC 整合（下）

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <!--Spring-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring.xml</param-value>
    </context-param>     
    <!--DispatchServlet-->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <!--
            DispatcherServlet是Spring MVC最核心的对象
            DispatcherServlet用于拦截Http请求,
            并根据请求的URL调用与之对应的Controller方法,来完成Http请求的处理
        -->
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>
        <!--
            在Web应用启动时自动创建Spring IOC容器,
            并初始化DispatcherServlet
        -->
        <load-on-startup>0</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <!--"/" 代表拦截所有请求,/*拦截所有请求包括jsp页面这些请求-->
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!--Rest支持-->
    <filter>
        <filter-name>hiddenHttpMethodFilter</filter-name>
        <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>hiddenHttpMethodFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>
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<?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"
       xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/util
        http://www.springframework.org/schema/util/spring-util-4.3.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <context:component-scan base-package="com.citi">
    </context:component-scan>
    <!--配置试图解析器，自动拼接页面地址，自动在jsp页面前增加/WEB-INF/pages/-->
    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>
    <!-- 默认前端控制器是拦截所有资源（除过jsp），js文件就404了；要js文件的请求是交给tomcat处理的
http://localhost:8080/7.SpringMVC_crud/scripts/jquery-1.9.1.min.js -->
    <!-- 告诉SpringMVC，自己映射的请求就自己处理，不能处理的请求直接交给tomcat -->
    <!-- 静态资源能访问，动态映射的请求就不行 -->
    <mvc:default-servlet-handler/>
    <!-- springmvc可以保证动态请求和静态请求都能访问 -->
    <mvc:annotation-driven conversion-service="conversionServiceFactory">
    </mvc:annotation-driven>
    <bean id="conversionServiceFactory" class="org.springframework.context.support.ConversionServiceFactoryBean">
    </bean>
</beans>
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<?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"
       xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/util
        http://www.springframework.org/schema/util/spring-util-4.3.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <context:component-scan base-package="com.citi">
    </context:component-scan>
</beans>
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@Controller
public class HalloController {
    // 添加构造方法，实例化是打印日志
    public HalloController(){
        System.out.println(this.getClass().getName() + "被实例化了...");
    }
}
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@Service
public class HalloService {
    public HalloService(){
        System.out.println(this.getClass().getName() + "被实例化了...");
    }
}
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <h2>SUCCESS</h2>
</body>
</html>
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<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
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<context:component-scan base-package="com.citi" use-default-filters="false">
    <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
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<context:component-scan base-package="com.citi">
    <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
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@Autowired
private HalloService halloService;
@RequestMapping("/hallo")
public String hallo(){
    System.out.println("halloService组件为：" + halloService);
    return "success";
}
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@Service
public class HalloService {
    @Autowired
    private HiController hiController;
    public HalloService(){
        System.out.println(this.getClass().getName() + "被实例化了...");
    }
}
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<context:component-scan base-package="com.citi" use-default-filters="false">
    <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    <context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
</context:component-scan>