Question

我是Spring MVC的新手，虽然不是Java的新手，并且在Struts2和Wicket上工作主要作为我的Web开发选择

我正在尝试使用spring MVC进行文件上传的POC，这里是我的jsp文件

<form  id="fileuploadForm" action="fileupload" method="POST" enctype="multipart/form-data" >
            <fieldset>
                <legend>Upload Fields</legend>

               <input id="file" type="file" name="file" />
                <p><button type="submit">Upload</button></p> 

            </fieldset>
        </form>

我的控制器是

@Controller
@RequestMapping("FileUpload/fileupload")
public class FileUploadController{



    public ModelAndView processUpload(@RequestParam MultipartFile file, WebRequest webRequest, Model model) {


        String orgFileName = file.getOriginalFilename();
        String filePath = "data/input" + orgFileName;
        ModelMap modelMap = new ModelMap(); 
        System.out.println("*******************************************");
        File dest = new File(filePath);
        try {
            file.transferTo(dest);
        } catch (IllegalStateException e) {
            e.printStackTrace();
            modelMap.addAttribute("result", "File uploaded failed:" + orgFileName);
            return new ModelAndView("results", modelMap);
                //return "File uploaded failed:" + orgFileName;
        } catch (IOException e) {
            e.printStackTrace();
            modelMap.addAttribute("result", "File uploaded failed:" + orgFileName);
            return new ModelAndView("results", modelMap);
        }


        modelMap.addAttribute("result", "File uploaded " + orgFileName);
        return new ModelAndView("results", modelMap);



    }

下面是dispatcher-servlet.xml的条目

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:security="http://www.springframework.org/schema/security"
    xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.0.xsd">

     <bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping" />
     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>
    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver"
         p:suffix=".jsp" />

    <bean name="/*" class="com.app.controller.FileUploadController"/>
</beans>

我也试过google但由于缺乏对spring MVC的了解而无法获得任何帮助可能无法找到好的资源我在哪里击中我的上传按钮我得到这个URL的404错误

http://localhost:7777/FileUpload/fileupload

我确信我正在做一些配置错误但无法指出它，任何帮助都会非常有帮助

的web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    id="WebApp_ID" version="2.5">
    <display-name>SpringExample17</display-name>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>WEB-INF/dispatcher-servlet.xml</param-value>
    </context-param>
    <listener>
        <listener-class>
        org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>*.htm</url-pattern>
    </servlet-mapping>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>    
</web-app>

提前致谢

Answer 1

有几点需要注意：

您已将仅以.htm结尾的网址映射到您的Spring Dispatcher，因此Controller永远无法看到您的请求。
如果FileUpload是您的网络应用程序的名称，则需要将其从@RequestMapping注释中删除。
<bean name="/*" class="com.app.controller.FileUploadController"/>应更改为<bean name="/fileupload.htm" class="com.app.controller.FileUploadController"/>

HTH

Answer 2

我总是用正斜杠开始我的映射，所以试试：

 @RequestMapping("/FileUpload/fileupload")

使用Spring MVC上传文件

2 个答案: