spring配置国际化的消息资源文件以及spring3.0注解表单验证

<!-- 引入属性文件 -->

        <!--加载config.properties文件-->

<context:property-placeholder location="classpath:config.properties" />

<!-- 国际化的消息资源文件 -->

    <bean id="messageSource"         class="org.springframework.context.support.ReloadableResourceBundleMessageSource">

        <property name="basenames">

            <list>

            <value>classpath:包名/包名/包名/包名/文件名(不要后缀)</value>

            </list>

        </property>

        <!--defaultEncoding 默认编码是ISO-8859-1 这里设置为UTF-8-->

        <property name="defaultEncoding" value="UTF-8"/>

        <!--cacheSeconds 设置缓存文件加载性能的秒数 默认为-1-->

        <property name="cacheSeconds" value="60"/>

    </bean>

<!-- 会自动注册了validator  ConversionService  -->

    <mvc:annotation-driven validator="validator" conversion-service="conversion-service"/>

    

    <!-- 以下 validator  ConversionService 在使用 mvc:annotation-driven 会 自动注册-->

    <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">

        <property name="providerClass"  value="org.hibernate.validator.HibernateValidator"/>

        <!-- 如果不加默认到 使用classpath下的 ValidationMessages.properties -->

        <property name="validationMessageSource" ref="messageSource"/>

    </bean>

        @RequestMapping(value="/save",method=RequestMethod.POST)

public String add(@Valid  @ModelAttribute("cmsDifficultyLevel")CmsDifficultyLevel cmsDifficultyLevel,Errors errors,Model model){

//**参数@Valid 不能丢 Errors errors必须放在实体对象后不然报 org.springframework.validation.BeanPropertyBindingResult: 1 errors

if (errors.hasErrors()) {//判断是否出错

model.addAttribute("cmsDifficultyLevel", cmsDifficultyLevel);

return "cms/difficulty/difficulty_add";//这里的路径就是你进入当前页面的路径

}

if (cmsDifficultyLevel.getLevelId() != null) {

CmsDifficultyLevel difficultLevel = difficutlyLevelService.getById(cmsDifficultyLevel.getLevelId());

difficultLevel.setLevelName(cmsDifficultyLevel.getLevelName());

difficutlyLevelService.update(difficultLevel);

} else {

difficutlyLevelService.save(cmsDifficultyLevel);

}

return "redirect:/cms/difficulty";

}

    jsp页面错误打印信息

    <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>

    <span>${errorMsg}</span>

    <form:form commandName="cmsDifficultyLevel" class="form-horizontal" method="post" action="${path}/cms/difficulty/save">

<form:errors path="*" cssStyle="color:red"></form:errors>

    </form:form>

    实体 是用@NotBlank(message = "难易程度名不能为空")

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