Spring MVC實現的帶參數的form表單多文件上傳-

（由於字數限制請看項目裏代碼，下面省略部分不重要的代碼）

首先是web.xml

01	xmlversion="1.0"encoding="UTF-8"?>

02	<web-appversion="2.5"

03	xmlns="http://java.sun.com/xml/ns/javaee"

04	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

05	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee

06	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

07

<servlet>

08	<servlet-name>uploadservlet-name>

09	<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>

10	<load-on-startup>1load-on-startup>

11

servlet>

12	<servlet-mapping>

13	<servlet-name>uploadservlet-name>

14	<url-pattern>/url-pattern>

15	servlet-mapping>

16

17

<filter>

18	<filter-name>SpringCharacterEncodingFilterfilter-name>

19	<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>

20	<init-param>

21	<param-name>encodingparam-name>

22	<param-value>UTF-8param-value>

23	init-param>

24

filter>

25	<filter-mapping>

26	<filter-name>SpringCharacterEncodingFilterfilter-name>

27	<url-pattern>/*url-pattern>

28	filter-mapping>

29

30	<welcome-file-list>

31	<welcome-file>/WEB-INF/jsp/user/add.jspwelcome-file>

32	welcome-file-list>

33

web-app>

接下來是SpringMVC的配置文件upload-servlet.xml

01	xmlversion="1.0"encoding="UTF-8"?>

02	<beansxmlns="http://www.springframework.org/schema/beans"

03	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

04	xmlns:mvc="http://www.springframework.org/schema/mvc"

05	xmlns:context="http://www.springframework.org/schema/context"

06	xsi:schemaLocation="http://www.springframework.org/schema/beans

07	http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

08	http://www.springframework.org/schema/mvc

09	http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd

10	http://www.springframework.org/schema/context

11	http://www.springframework.org/schema/context/spring-context-3.0.xsd">

12	<context:component-scanbase-package="com.jadyer"/>

13

14	<beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver">

15	<propertyname="prefix"value="/WEB-INF/jsp/"/>

16	<propertyname="suffix"value=".jsp"/>

17

bean>

18

19

20	<beanid="multipartResolver"class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

21	<propertyname="defaultEncoding"value="UTF-8"/>

22

23	<propertyname="maxUploadSize"value="200000"/>

24

bean>

25

26

27

28	<beanid="exceptionResolver"class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">

29	<propertyname="exceptionMappings">

30

<props>

31

32	<propkey="org.springframework.web.multipart.MaxUploadSizeExceededException">error_fileuploadprop>

33

props>

34

property>

35

bean>

36

beans>

下面是用於上傳的表單頁面//WEB-INF//jsp//user//add.jsp

1	（由於字數限制請看項目裏代碼）

下面是上傳成功後打印用戶信息的頁面//WEB-INF//jsp//user//list.jsp

1	（由於字數限制請看項目裏代碼）

下面是上傳文件內容過大時的提示頁面//WEB-INF//jsp//error_fileupload.jsp

1	（由於字數限制請看項目裏代碼）

接下來是用到的實體類User.java

01	publicclassUser {

02	privateString username;

03	privateString nickname;

04	privateString password;

05	privateString email;

06

07	//{此處get.set省略}

08	publicUser() {

09

}

10

11	publicUser(String username, String nickname, String password, String email) {

12	this.username = username;

13	this.nickname = nickname;

14	this.password = password;

15	this.email = email;

16

}

17

}

最後是核心的UserController.java

01	@Controller

02	@RequestMapping("/user")

03	publicclassUserController {

04	privatefinalstaticMap users = newHashMap();

05

06	// 模擬數據源,構造初始數據

07	publicUserController() {

08	users.put("張起靈", newUser("張起靈", "悶油瓶", "02200059",

09	"[email protected]"));

10	users.put("李尋歡", newUser("李尋歡", "李探花", "08866659",

11	"[email protected]"));

12	users.put("拓拔野", newUser("拓拔野", "搜神記", "05577759",

13	"[email protected]"));

14	users.put("孫悟空", newUser("孫悟空", "美猴王", "03311159",

15	"[email protected]"));

16

}

17

18	@RequestMapping("/list")

19	publicString list(Model model) {

20	model.addAttribute("users", users);

21	return"user/list";

22

}

23

24	@RequestMapping(value = "/add", method = RequestMethod.GET)

25	publicString addUser() {

26	return"user/add";

27

}

28

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

30	publicString addUser(User user, @RequestParamMultipartFile[] myfiles,

31	HttpServletRequest request) throwsIOException {

32	// 如果只是上傳一個文件，則只需要MultipartFile類型接收文件即可，而且無需顯式指定@RequestParam註解

33	// 如果想上傳多個文件，那麼這裏就要用MultipartFile[]類型來接收文件，並且還要指定@RequestParam註解

34	// 並且上傳多個文件時，前臺表單中的所有

35	// type="file"/>的name都應該是myfiles，否則參數裏的myfiles無法獲取到所有上傳的文件

36	for(MultipartFile myfile : myfiles) {

37	// if (myfile.isEmpty()) {

38	// System.out.println("文件未上傳");

39	// } else {

40	System.out.println("文件長度: "+ myfile.getSize());

41	System.out.println("文件類型: "+ myfile.getContentType());

42	System.out.println("文件名稱: "+ myfile.getName());

43	System.out.println("文件原名: "+ myfile.getOriginalFilename());

44	System.out.println("========================================");

45	// 如果用的是Tomcat服務器，則文件會上傳到\\%TOMCAT_HOME%\\webapps\\YourWebProject\\WEB-INF\\upload\\文件夾中

46	// 這裏不必處理IO流關閉的問題，因爲FileUtils.copyInputStreamToFile()方法內部會自動把用到的IO流關掉，我是看它的源碼才知道的

47	// String realPath =

48	// request.getSession().getServletContext().getRealPath("/FileTest/WebContent/WEB-INF/upload");

49	String realPath = request.getSession().getServletContext()

50	.getRealPath("/WEB-INF/upload");

51	System.out.println(realPath);

52

53	FileUtils.copyInputStreamToFile(myfile.getInputStream(), newFile(

54	realPath, myfile.getOriginalFilename()));

55

// }

56

}

57	users.put(user.getUsername(), user);

58	return"redirect:/user/list";

59

}

60

}

補充：記得建立這個目錄，用於存放上傳的文件，即//WEB-INF//upload//

下面是程序運行截圖：

 

添加成功後：