springMvc配置攔截器無效

    說明

springMvc配置國際化攔截器失敗，點擊頁面按鈕切換中英文無效，排查發現沒有進入

LocaleChangeInterceptor 類中，判斷攔截器沒有起作用，那么是什么原因導致攔截器無效，通過查看官網配置及查找其他碼友分析，
判斷應該是annotation-driven 和 interceptors配置問題，調整兩者順序，果然解決問題，如下

         

<!-- if you use annotation you must configure following setting,
    2.這塊還能調整自定義跳轉正常 3.配置自定義轉換器 4. 配置validator-->
    <mvc:annotation-driven  conversion-service="conversionService" validator="validator" />

    <!--該攔截器通過名為”lang”的參數來攔截HTTP請求，使其重新設置頁面的區域化信息,
    #####特別提醒，interceptors必須在annotation-driven之后 ######-->
    <mvc:interceptors>
        <!-- 該攔截器通過名為”locale”的參數來攔截HTTP請求，使其重新設置頁面的區域化信息 【攔截所有請求】-->
        <bean id="localeChangeInterceptor" class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
        </bean>
    </mvc:interceptors>

 

1. springMvc 版本  

   4.3.12.RELEASE

2. springMvc 所用jar（參照別的碼友的整理）

IOC 
    core：資源訪問，類型轉換
    beans：bean工廠
    expression：${}獲取屬性
    context：核心接口ApplicationContext
AOP 
    aop：面向切面編程的實現
    aspects：對AspectJ的整合
DAO 
    jdbc：通過jdbc模板類訪問數據庫
    tx：事務的實現
    orm：與hibernate，mybatis的集成
    oxm：對象與xml數據之間的相互轉換
    jms：系統之間發送消息，異步通信
Web 
    web：與web項目的整合
    webmvc：子模塊springMVC
Test test：測試

    3. 相關配置文件及依賴

      pom文件（除了上面的基礎依賴之外的依賴jar包）

      

<!--springMvc DispatcherServlet depend on -->

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.0.1</version>
            <scope>provided</scope>
        </dependency>


        <!-- utils -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.5</version>
        </dependency>

        <!-- 日志 logback -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-core</artifactId>
            <version>0.9.28</version>
            <type>jar</type>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>0.9.28</version>
            <type>jar</type>
        </dependency>

        <dependency>
            <groupId>commons-configuration</groupId>
            <artifactId>commons-configuration</artifactId>
            <version>1.10</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.12</version>
            <scope>compile</scope>
        </dependency>
        <!--jsp依賴包-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
        </dependency>
        <!--springMvc validation -->
        <!-- https://mvnrepository.com/artifact/javax.validation/validation-api -->
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>2.0.1.FINAL</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>6.0.17.Final</version>
        </dependency>

        <!-- =================== BEGIN OF 后端傳遞集合數據到前端 =================== -->
        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.11.2</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.11.2</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.11.2</version>
        </dependency>
        <!-- END OF 后端傳遞集合數據到前端 -->

   spring.xml

   

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://www.springframework.org/schema/beans"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans-4.3.xsd">

    <!-- 國際化資源文件 messageSource配置的是國際化資源文件的路徑， classpath:messages指的是classpath路徑下的
        messages_zh_CN.properties文件和messages_en_US.properties文件 設置“useCodeAsDefaultMessage”，默認為false
        ，這樣當Spring在ResourceBundle中找不到messageKey的話，就拋出NoSuchMessageException，
        把它設置為True，則找不到不會拋出異常，而是使用messageKey作為返回值。
        ResourceBundleMessageSource 改為  -->
    <bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
        <property name="defaultEncoding" value="UTF-8" />
        <property name="useCodeAsDefaultMessage" value="true" />
        <property name="basename" value="classpath:message/i18n" />
    </bean>


    <!-- 存儲區域設置信息 SessionLocaleResolver類通過一個預定義會話名將區域化信息存儲在會話中 從session判斷用戶語言defaultLocale
        :默認語言 -->
    <bean id="localeResolver" class="org.springframework.web.servlet.i18n.SessionLocaleResolver">
        <!-- 設置session attribute的key -->
        <property name="localeAttributeName" value="locale"/>
        <!-- 設置默認的Locale -->
        <property name="defaultLocale" value="zh_CN" />
    </bean>


</beans>

 spring-mvc.mxl

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
                        http://www.springframework.org/schema/mvc
                        http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
    <!-- 允許對靜態資源文件的訪問 -->
    <mvc:default-servlet-handler />
    <!-- 掃描控制器類 -->
    <context:component-scan base-package="com.daisy" />
    <!-- if you use annotation you must configure following setting,
    2.這塊還能調整自定義跳轉正常 3.配置自定義轉換器 4. 配置validator-->
    <mvc:annotation-driven  conversion-service="conversionService" validator="validator" />

    <!--該攔截器通過名為”lang”的參數來攔截HTTP請求，使其重新設置頁面的區域化信息,
    #####特別提醒，interceptors必須在annotation-driven之后 ######-->
    <mvc:interceptors>
        <!-- 該攔截器通過名為”locale”的參數來攔截HTTP請求，使其重新設置頁面的區域化信息 【攔截所有請求】-->
        <bean id="localeChangeInterceptor" class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
        </bean>
    </mvc:interceptors>

    <!--ConversionServiceFactoryBean：只能轉換數據，FormattingConversionServiceFactoryBean：既能轉換數據也能對數據進行格式化-->
    <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
        <property name="converters">
            <set><!--tip Class Name first Charactor Lowercase-->
                <ref bean="myEmployeeConvert"/>
            </set>
        </property>
    </bean>
    <!--validation 驗證數據是否合法 -->
    <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
        <property name="providerClass"  value="org.hibernate.validator.HibernateValidator"/>
        <!--不設置則默認為classpath下的 ValidationMessages.properties -->
        <property name="validationMessageSource" ref="messageSource"/>
    </bean>

    <!-- 定義跳轉的文件的前后綴 -->
    <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
        <property name="viewResolvers">
            <list>
                <bean class="org.springframework.web.servlet.view.BeanNameViewResolver"/>
                <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
                    <property name="prefix" value="/WEB-INF/jsp/"/>
                    <property name="suffix" value=".jsp"/>
                </bean>
            </list>
        </property>
        <!--配置處理返回數據集合-->
        <property name="defaultViews">
            <list>
                <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView"/>
            </list>
        </property>
    </bean>

</beans>