springMvc配置拦截器无效

    说明

springMvc配置国际化拦截器失败，点击页面按钮切换中英文无效，排查发现没有进入

LocaleChangeInterceptor 类中，判断拦截器没有起作用，那么是什么原因导致拦截器无效，通过查看官网配置及查找其他码友分析，
判断应该是annotation-driven 和 interceptors配置问题，调整两者顺序，果然解决问题，如下

         

<!-- if you use annotation you must configure following setting,
    2.这块还能调整自定义跳转正常 3.配置自定义转换器 4. 配置validator-->
    <mvc:annotation-driven  conversion-service="conversionService" validator="validator" />

    <!--该拦截器通过名为”lang”的参数来拦截HTTP请求，使其重新设置页面的区域化信息,
    #####特别提醒，interceptors必须在annotation-driven之后 ######-->
    <mvc:interceptors>
        <!-- 该拦截器通过名为”locale”的参数来拦截HTTP请求，使其重新设置页面的区域化信息 【拦截所有请求】-->
        <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（参照别的码友的整理）
IOC 
    core：资源访问，类型转换
    beans：bean工厂
    expression：${}获取属性
    context：核心接口ApplicationContext
AOP 
    aop：面向切面编程的实现
    aspects：对AspectJ的整合
DAO 
    jdbc：通过jdbc模板类访问数据库
    tx：事务的实现
    orm：与hibernate，mybatis的集成
    oxm：对象与xml数据之间的相互转换
    jms：系统之间发送消息，异步通信
Web 
    web：与web项目的整合
    webmvc：子模块springMVC
Test 
    test：测试

    3. 相关配置文件及依赖

      pom文件（除了上面的基础依赖之外的依赖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依赖包-->
        <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 后端传递集合数据到前端 =================== -->
        <!-- 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 后端传递集合数据到前端 -->

   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">

    <!-- 国际化资源文件 messageSource配置的是国际化资源文件的路径， classpath:messages指的是classpath路径下的
        messages_zh_CN.properties文件和messages_en_US.properties文件 设置“useCodeAsDefaultMessage”，默认为false
        ，这样当Spring在ResourceBundle中找不到messageKey的话，就抛出NoSuchMessageException，
        把它设置为True，则找不到不会抛出异常，而是使用messageKey作为返回值。
        ResourceBundleMessageSource 改为  -->
    <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>


    <!-- 存储区域设置信息 SessionLocaleResolver类通过一个预定义会话名将区域化信息存储在会话中 从session判断用户语言defaultLocale
        :默认语言 -->
    <bean id="localeResolver" class="org.springframework.web.servlet.i18n.SessionLocaleResolver">
        <!-- 设置session attribute的key -->
        <property name="localeAttributeName" value="locale"/>
        <!-- 设置默认的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">
    <!-- 允许对静态资源文件的访问 -->
    <mvc:default-servlet-handler />
    <!-- 扫描控制器类 -->
    <context:component-scan base-package="com.daisy" />
    <!-- if you use annotation you must configure following setting,
    2.这块还能调整自定义跳转正常 3.配置自定义转换器 4. 配置validator-->
    <mvc:annotation-driven  conversion-service="conversionService" validator="validator" />

    <!--该拦截器通过名为”lang”的参数来拦截HTTP请求，使其重新设置页面的区域化信息,
    #####特别提醒，interceptors必须在annotation-driven之后 ######-->
    <mvc:interceptors>
        <!-- 该拦截器通过名为”locale”的参数来拦截HTTP请求，使其重新设置页面的区域化信息 【拦截所有请求】-->
        <bean id="localeChangeInterceptor" class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
        </bean>
    </mvc:interceptors>

    <!--ConversionServiceFactoryBean：只能转换数据，FormattingConversionServiceFactoryBean：既能转换数据也能对数据进行格式化-->
    <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 验证数据是否合法 -->
    <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
        <property name="providerClass"  value="org.hibernate.validator.HibernateValidator"/>
        <!--不设置则默认为classpath下的 ValidationMessages.properties -->
        <property name="validationMessageSource" ref="messageSource"/>
    </bean>

    <!-- 定义跳转的文件的前后缀 -->
    <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>
        <!--配置处理返回数据集合-->
        <property name="defaultViews">
            <list>
                <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView"/>
            </list>
        </property>
    </bean>

</beans>
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原文地址：https://www.cnblogs.com/qianna-daisy/p/13738978.html