SpringMVC でのページの国際化とファイルのアップロードの概要 (コード付き)

<!-- 注册国际化信息，必须有id，指定资源文件名称，资源文件在src目录下 -->
    <bean id="messageSource"
        class="org.springframework.context.support.ResourceBundleMessageSource">
        <property name="basename" value="i18n"></property>
    </bean>
    <!-- 配置LocalResolver用来获取本地化语言 -->
    <bean id="localeResolver"
        class="org.springframework.web.servlet.i18n.SessionLocaleResolver"></bean>
    <!-- 配置LocaleChanceInterceptor拦截器 -->
    <mvc:interceptors>
        <bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor" />
    </mvc:interceptors>

@RequestMapping(value="login",method=RequestMethod.GET)
    public String login(Locale locale,Map<String ,Object> map){
        String name = messageSource.getMessage("name", null, locale);
        String pass = messageSource.getMessage("pass", null, locale);
        String title = messageSource.getMessage("title", null, locale);
        String submit = messageSource.getMessage("submit", null, locale);
        map.put("title", title);
        map.put("pass", pass);
        map.put("name", name);
        map.put("submit", submit);
        map.put("user", new User());
        return "login";
    }

<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<%@ taglib uri="http://www.springframework.org/tags" prefix="spring" %>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form" %>

<form:form action="login" method="post" commandName="user">
        <fmt:message key="name"/>
        <form:input path="username"/>
        <form:errors path="username"/>
        <br>
        <fmt:message key="pass"/>
        <form:input path="userpass"/>
        <input type="submit" value="<spring:message code="submit"/>">
 </form:form>

<a href="login?locale=zh_CN">中文</a>
<a href="login?locale=en_US">英文</a>

<!-- 配置文件上传 -->
    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- 指定默认的编码格式 -->
        <property name="defaultEncoding" value="UTF-8" />
        <!-- 指定允许上传的文件大小，单位Byte -->
        <property name="maxUploadSize" value="512000" />
    </bean>

<form action="${pageContext.request.contextPath}/upload" method="post" enctype="multipart/form-data">
        <input type="file" name="file"/><br>
        <input type="file" name="file"/><br>
        <input type="file" name="file"/><br>
        <input type="submit" value="submit">
    </form>

/**
     *    单文件上传 :  MultipartFile file
     *    多文件上传 :  @RequestParam("file") MultipartFile[] file
     *    多文件上传必须加上 @RequestParam("file")注解否则会报错
     *  @author:MiYa.
     *  @time:2018-9-28 11:50
     */
    @RequestMapping(value="upload",method=RequestMethod.POST)
    public String testFileUpload(HttpServletRequest request , @RequestParam("file") MultipartFile[] file){
        for (int i = 0; i < file.length; i++) {
            MultipartFile multipartFile = file[i];
            System.out.println(" ContentType: " + multipartFile.getContentType());
            System.out.println(" Name: " + multipartFile.getName());
            System.out.println(" OriginalFilename: " + multipartFile.getOriginalFilename());
            System.out.println(" Size: " + multipartFile.getSize());
            //判断是否提交文件，如果没有那么跳过上传
            if(multipartFile.isEmpty()){
                continue;
            }
            // 获取文件的上传路径
            String uploadpath = request.getServletContext().getRealPath("uploads");
            //获取文件名称
            String filename = multipartFile.getOriginalFilename();
            //截取文件后缀
            String fileext = filename.substring(filename.lastIndexOf("."));
            //生成新的随机文件名称
            String newfileName = UUID.randomUUID() + fileext;    
            //文件保存路径
            File savepath = new File(uploadpath + "/" + newfileName);
            //上传文件
            try {
                multipartFile.transferTo(savepath);
            } catch (IllegalStateException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

        }
        return "welcome";
    }