springMVC的一些配置(笔记)

<!--扫描组件-->
    <context:component-scan base-package="com.xbfinal.mvc"/>

 <bean id="viewResolver" class="org.thymeleaf.spring5.view.ThymeleafViewResolver">
        <property name="order" value="1"/>
        <property name="characterEncoding" value="UTF-8"/>
        <property name="templateEngine">
            <bean class="org.thymeleaf.spring5.SpringTemplateEngine">
                <property name="templateResolver">
                    <bean class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver">
                        <!-- 视图前缀 -->
                        <property name="prefix" value="/WEB-INF/templates/"/>
                        <!-- 视图后缀 -->
                        <property name="suffix" value=".html"/>
                        <property name="templateMode" value="HTML5"/>
                        <property name="characterEncoding" value="UTF-8" />
                    </bean>
                </property>
            </bean>
        </property>
    </bean>

<mvc:view-controller path="/" view-name="index"></mvc:view-controller>
    <mvc:view-controller path="/toAdd" 
    view-name="employee_add"></mvc:view-controller>

 <mvc:default-servlet-handler />

<mvc:annotation-driven />
<!--*************解决 Responsbody 返回的乱码-****************-->
  <!--开启mvc的注解驱动-->
    <mvc:annotation-driven>
        <!-- 解决 Responsbody 返回的乱码-->
        <mvc:message-converters>
            <bean class="org.springframework.http.converter.StringHttpMessageConverter">
                <property name="supportedMediaTypes" value="text/html; charset=UTF-8"/>
                <property name="defaultCharset" value="UTF-8"/>
            </bean>
        </mvc:message-converters>
    </mvc:annotation-driven>

 <!--配置异常处理-->
    <bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
        <property name="exceptionMappings">
            <props>
                <prop key="java.lang.ArithmeticException">errer<!--这里写跳转的页面--></prop>
            </props>
        </property>
        <!--存储异常信息，设置共享信息的键-->
        <property name="exceptionAttribute" value="ex"></property>
    </bean>
</beans>

 <!-- 中文乱码过滤器  !!!!!最好写在最前面,防止后面乱码
   因为过滤器是哪个mapping在前就先处理那个
   -->
  <filter>
    <filter-name>CharacterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
    <init-param>
      <param-name>forceResponseEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

<!--HHF过滤器-->
  <filter>
    <filter-name>HiddenHttpMethodFilter</filter-name>
    <!-- HHF -->
    <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>HiddenHttpMethodFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

<!--配置springMVC的前端控制器，对浏览器发送的请求进行统一处理-->
  <servlet>
    <servlet-name>SpringMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 通过初始化参数指定SpringMVC配置文件的位置和名称 -->
    <init-param>
      <!-- contextConfigLocation为固定值 -->
      <param-name>contextConfigLocation</param-name>
      <!-- 使用classpath:表示从类路径查找配置文件，例如maven工程中的src/main/resources -->
      <param-value>classpath:springMVC.xml</param-value>
    </init-param>
    <!--
    作为框架的核心组件，在启动过程中有大量的初始化操作要做
    而这些操作放在第一次请求时才执行会严重影响访问速度
    因此需要通过此标签将启动控制DispatcherServlet的初始化时间提前到服务器启动时
  -->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>/</url-pattern><!--  统一处理 所以写/  -->
  </servlet-mapping>

<!--必须通过文件解析器的解析才能将文件转换为MultipartFile对象-->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"></bean>

<mvc:interceptor>
方法一：
<bean class="com.atguigu.interceptor.FirstInterceptor"></bean>
方法二：注意@Component
<ref bean="firstInterceptor"></ref>
<!-- 以上两种配置方式都是对DispatcherServlet所处理的所有的请求进行拦截 -->
方法三：
    <mvc:mapping path="/**"/><!--拦截所有 -->
    <!--排除拦截 -->
    <mvc:exclude-mapping path="/testRequestEntity"/>
    <ref bean="firstInterceptor"></ref>
</mvc:interceptor>
<!-- 
  以上配置方式可以通过ref或bean标签设置拦截器，通过mvc:mapping设置需要拦截的请求，通过mvc:exclude-mapping设置需要排除的请求，即不需要拦截的请求
-->

<dependencies>
    <!-- SpringMVC -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.3.1</version>
    </dependency>
    <!-- 日志 -->
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>1.2.3</version>
    </dependency>
    <!-- ServletAPI -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
        <scope>provided</scope>
    </dependency>
    <!-- Spring5和Thymeleaf整合包 -->
    <dependency>
        <groupId>org.thymeleaf</groupId>
        <artifactId>thymeleaf-spring5</artifactId>
        <version>3.0.12.RELEASE</version>
    </dependency>
</dependencies>