The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive re

使用SpringMVC，頁面跳轉時出現Bad Request：

信息如下：

Type Status Report

Message Required String parameter 'description' is not present

Description The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).

提示信息Message那里提及到的‘description’，它是上傳表單的其中一個參數，因為這個是第一個參數，所以只顯示了description。使用springmvc上傳文件功能時出現Bad Request，除了表單類型與@RequestParam POJO的屬性類型不一致導致的原因外，還有一個可能性原因，就是沒有配置MultipartResolver，因為springmvc默認情況下沒有裝配MultipartResolver，下面是配置MultipartResolver：

<!-- 配置上傳文件 -->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize">
            <value>10485760</value>
        </property>
        <property name="defaultEncoding">
            <value>UTF-8</value>
        </property>
    </bean>