springMVC實現上傳文件功能

1.spring_fileupload.xml配置文件以下:

Xml代碼

1. <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
2. <!--<property name="maxUploadSize" value="10485760"></property>-->
3. </bean>

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    <!--<property name="maxUploadSize" value="10485760"></property>-->
</bean>

2.FileUploadAction控制器以下:

Java代碼

1. @RequestMapping(params = "method=up", method = RequestMethod.POST)
2. @ResponseBody
3. public Map<String, String> uploadSolver(@RequestParam MultipartHttpServletRequest request {
4. Map<String,String> info = new HashMap<String,String>();
5. MultipartFile patch = request.getFile("file");
6. if (!patch.isEmpty()) {
7. try {
8. String fileName = patch.getOriginalFilename();
10. /**
11. * 獲取文件後綴
12. */
13. System.out.println(fileName);
14. String suffix = fileName.substring(fileName.lastIndexOf("."));
16. /**
17. * 判斷上傳的文件格式是否正確
18. */
19. if ((".zip.rar.gz.tar.bz2.txt".indexOf(suffix.toLowerCase()) != -1)) {
20. Integer fileSize = (int) patch.getSize() / 1024;
22. /**
23. * 若是文件小於10M，則上傳文件，不然提示用戶不能超過10M
24. */
25. if (fileSize <= 10240) {
27. String uploadPath = ClassLoaderUtil.getProperties("uploadFile.properties").getProperty("filePath");
28. System.out.println(uploadPath);
29. File filePath = new File(request.getSession()
30. .getServletContext().getRealPath(uploadPath));
31. System.out.println(filePath.getAbsolutePath());
32. /**
33. * 判讀存儲文件路是否存在，不存在則建立
34. */
35. if (! filePath.exists()) {
36. filePath.mkdirs();
37. System.out.println("上傳文件路徑不存在，建立成功！");
38. }
39. /**
40. * 文件開始上傳到服務器上
41. */
42. patch.transferTo(new File(filePath.getAbsolutePath()+"\\"+fileName));
43. info.put("success", "true");
44. info.put("msg", "上傳成功！");
46. } else {
47. System.out.println("上傳的文件太大，文件大小不能超過10M");
48. info.put("success","false");
49. info.put("msg", "上傳的文件太大，文件大小不能超過10M");
50. }
51. } else {
52. System.out.println("上傳的文件格式不支持");
53. info.put("success","false");
54. info.put("msg", "上傳的文件格式不支持");
56. }
57. } catch (IOException e) {
58. e.printStackTrace();
59. System.out.println("系統異常");
60. info.put("success","false");
61. info.put("msg", "系統異常");
62. }
63. }
64. return info;
65. }

@RequestMapping(params = "method=up", method = RequestMethod.POST)
	@ResponseBody
	public Map<String, String> uploadSolver(@RequestParam MultipartHttpServletRequest request {
		Map<String,String> info = new HashMap<String,String>();
		MultipartFile patch = request.getFile("file");
		if (!patch.isEmpty()) {
			try {
				String fileName = patch.getOriginalFilename();

				/**
				 * 獲取文件後綴
				 */
				System.out.println(fileName);
				String suffix = fileName.substring(fileName.lastIndexOf("."));

				/**
				 * 判斷上傳的文件格式是否正確
				 */
				if ((".zip.rar.gz.tar.bz2.txt".indexOf(suffix.toLowerCase()) != -1)) {
					Integer fileSize = (int) patch.getSize() / 1024;

					/**
					 * 若是文件小於10M，則上傳文件，不然提示用戶不能超過10M
					 */
					if (fileSize <= 10240) {

						String uploadPath = ClassLoaderUtil.getProperties("uploadFile.properties").getProperty("filePath");
						System.out.println(uploadPath);
						File filePath = new File(request.getSession()
								.getServletContext().getRealPath(uploadPath));
						System.out.println(filePath.getAbsolutePath());
						/**
						 * 判讀存儲文件路是否存在，不存在則建立
						 */
						if (! filePath.exists()) {
							filePath.mkdirs();
							System.out.println("上傳文件路徑不存在，建立成功！");
						}
						/**
						 * 文件開始上傳到服務器上
						 */
						patch.transferTo(new File(filePath.getAbsolutePath()+"\\"+fileName));
						info.put("success", "true");
						info.put("msg", "上傳成功！");

					} else {
						System.out.println("上傳的文件太大，文件大小不能超過10M");
						info.put("success","false");
						info.put("msg", "上傳的文件太大，文件大小不能超過10M");
					}
				} else {
					System.out.println("上傳的文件格式不支持");
					info.put("success","false");
					info.put("msg", "上傳的文件格式不支持");
					
				}
			} catch (IOException e) {
				e.printStackTrace();
				System.out.println("系統異常");
				info.put("success","false");
				info.put("msg", "系統異常");
			}
		}
		return info;
	}

3.前端表單使用Extjs 以下：

Js代碼

1. Ext.onReady(function (){
3. var addFileTextField = new Ext.form.TextField({
4. name:'file',
5. allowBlank:false,
6. //使用HTML中的filetext
7. inputType:'file'
9. });
12. var addFileFormPanel = new Ext.form.FormPanel({
13. autoDestory:true,
14. fileUpload:true,
15. frame:true,
16. width:300,
17. autoHeight:true,
18. labelAlign:'right',
19. labelWidth:60,
20. defaultType:'textfield',
21. defaults:{width:200,allowBlank:false},
23. items: [addFileTextField]
24. });
27. var addFileWindow = new Ext.Window({
28. id : "addFileWindow",
29. title : "上傳文件",
30. width : 640,
31. height : 200,
32. resizable : false,
33. modal : true,
34. maximizable : false,
35. closeAction : "hide",
36. constrain : true,
37. layout : "vbox",
38. animateTarget:'target',
39. layoutConfig:{
40. align: "stretch"
41. },
42. items : [addFileFormPanel],
43. buttons:[
44. {text:'上傳',handler:function (){
45. if(! addFileFormPanel.getForm().isValid()) {
46. return false;
47. }
48. //上傳
49. addFileFormPanel.getForm().submit({
50. url:'uploadFile.do?method=up',
51. waitMsg: '正在上傳...',
52. success: function (form,response){
53. Ext.Msg.alert('success',response.result.msg);
54. },
55. failure: function (form,response){
56. Ext.Msg.alert('error',response.result.msg);
57. }
58. });
59. }
60. }
61. ]
62. });
63. });