1、application.yml文件配置
|
1 2 3 4 5 6 7 8 9 |
# 文件大小 MB必须大写 # maxFileSize 是单个文件大小 # maxRequestSize是设置总上传的数据大小 spring: servlet: multipart: enabled: true max-file-size: 20MB max-request-size: 20MB |
2、application-resources.yml配置（自定义属性）
|
1 2 3 |
#文件上传路径 file: filepath: O:/QMDownload/Hotfix2/ |
3、后台代码
（1）FileService.java
|
1 2 3 4 5 6 |
package com.sun123.springboot.service; import org.springframework.web.multipart.MultipartFile; import java.util.Map; public interface FileService { Map<String,Object> fileUpload(MultipartFile[] file); } |
（2）FileServiceImpl.java
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 |
package com.sun123.springboot.service.impl; import com.sun123.springboot.FileUtil; import com.sun123.springboot.service.FileService; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Service; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.File; import java.io.FileInputStream; import java.io.PrintWriter; import java.util.*; /** * @ClassName FileServiceImpl * @Description TODO * @Date 2019/3/22 22:19 * @Version 1.0 */ @Service public class FileServiceImpl implements FileService { private static Logger log= LoggerFactory.getLogger(FileServiceImpl. class ); //文件上传路径 @Service包含@Component @Value ( "${file.filepath}" ) private String filepath; Map<String, Object> resultMap = new LinkedHashMap<String, Object>(); //会将上传信息存入此处，根据需求自行调整 List<String> fileName = new ArrayList<String>(); //必须注入，不可以创建对象，否则配置文件引用的路径属性为null @Autowired FileUtil fileUtil; @Override public Map<String, Object> fileUpload(MultipartFile[] file) { HttpServletRequest request = null ; HttpServletResponse response; resultMap.put( "status" , 400 ); if (file!= null &&file.length> 0 ){ //组合image名称，[;隔开] // List<String> fileName =new ArrayList<String>(); PrintWriter out = null ; //图片上传 try { for ( int i = 0 ; i < file.length; i++) { if (!file[i].isEmpty()) { //上传文件，随机名称，","分号隔开 fileName.add(fileUtil.uploadImage(request, filepath+ "upload/" + fileUtil.formateString( new Date())+ "/" , file[i], true )+fileUtil.getOrigName()); } } //上传成功 if (fileName!= null &&fileName.size()> 0 ){ System.out.println( "上传成功！" ); resultMap.put( "images" ,fileName); resultMap.put( "status" , 200 ); resultMap.put( "message" , "上传成功！" ); } else { resultMap.put( "status" , 500 ); resultMap.put( "message" , "上传失败！文件格式错误！" ); } } catch (Exception e) { e.printStackTrace(); resultMap.put( "status" , 500 ); resultMap.put( "message" , "上传异常！" ); } System.out.println( "==========filename==========" +fileName); } else { resultMap.put( "status" , 500 ); resultMap.put( "message" , "没有检测到有效文件！" ); } return resultMap; } } |
（3）FileUtil.java
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 |
package com.sun123.springboot; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Component; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpServletRequest; import java.io.File; import java.text.SimpleDateFormat; import java.util.Date; /** * Created by wangluming on 2018/5/24. */ @Component public class FileUtil { // //文件上传路径 // @Value("${file.filepath}") // private String filepath; //文件随机名称 private String origName; public String getOrigName() { return origName; } public void setOrigName(String origName) { this .origName = origName; } /** * * @param request * @param path_deposit 新增目录名 支持多级不存在目录 * @param file 待文件 * @param isRandomName 是否要基于图片名称重新编排名称 * @return */ public String uploadImage(HttpServletRequest request, String path_deposit, MultipartFile file, boolean isRandomName) { //上传 try { String[] typeImg={ "gif" , "png" , "jpg" , "docx" , "doc" , "pdf" }; if (file!= null ){ origName=file.getOriginalFilename(); // 文件原名称 System.out.println( "上传的文件原名称:" +origName); // 判断文件类型 String type=origName.indexOf( "." )!=- 1 ?origName.substring(origName.lastIndexOf( "." )+ 1 , origName.length()): null ; if (type!= null ) { boolean booIsType= false ; for ( int i = 0 ; i < typeImg.length; i++) { if (typeImg[i].equals(type.toLowerCase())) { booIsType= true ; } } //类型正确 if (booIsType) { //存放图片文件的路径 //String path="O:\\QMDownload\\Hotfix\\"; //String path=filepath; //System.out.print("文件上传的路径"+path); //组合名称 //String fileSrc = path+path_deposit; String fileSrc = path_deposit; //是否随机名称 if (isRandomName){ //随机名规则：文件名+_CY+当前日期+8位随机数+文件后缀名 origName=origName.substring( 0 ,origName.lastIndexOf( "." ))+ "_CY" +formateString( new Date())+ MathUtil.getRandom620( 8 )+origName.substring(origName.lastIndexOf( "." )); } System.out.println( "随机文件名：" +origName); //判断是否存在目录 File targetFile= new File(fileSrc,origName); if (!targetFile.exists()){ targetFile.getParentFile().mkdirs(); //创建目录 } //上传 file.transferTo(targetFile); //完整路径 System.out.println( "完整路径:" +targetFile.getAbsolutePath()); return fileSrc; } } } return null ; } catch (Exception e) { e.printStackTrace(); return null ; } } /** * 格式化日期并去掉]-[ * @param date * @return */ public String formateString(Date date){ SimpleDateFormat dateFormater = new SimpleDateFormat( "yyyy-MM-dd" ); String list[] = dateFormater.format(date).split( "-" ); String result = "" ; for ( int i= 0 ;i<list.length;i++) { result += list[i]; } return result; } } |
（4）MathUtil.java
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 |
package com.sun123.springboot; import java.security.MessageDigest; import java.util.Random; public class MathUtil { /** * 获取随机的数值。 * @param length 长度 * @return */ public static String getRandom620(Integer length){ String result = "" ; Random rand = new Random(); int n = 20 ; if ( null != length && length > 0 ){ n = length; } boolean [] bool = new boolean [n]; int randInt = 0 ; for ( int i = 0 ; i < length ; i++) { do { randInt = rand.nextInt(n); } while (bool[randInt]); bool[randInt] = true ; result += randInt; } return result; } /** * MD5 加密 * @param str * @return * @throws Exception */ public static String getMD5(String str) { MessageDigest messageDigest = null ; try { messageDigest = MessageDigest.getInstance( "MD5" ); messageDigest.reset(); messageDigest.update(str.getBytes( "UTF-8" )); } catch (Exception e) { //LoggerUtils.fmtError(MathUtil.class,e, "MD5转换异常！message：%s", e.getMessage()); } byte [] byteArray = messageDigest.digest(); StringBuffer md5StrBuff = new StringBuffer(); for ( int i = 0 ; i < byteArray.length; i++) { if (Integer.toHexString( 0xFF & byteArray[i]).length() == 1 ) md5StrBuff.append( "0" ).append(Integer.toHexString( 0xFF & byteArray[i])); else md5StrBuff.append(Integer.toHexString( 0xFF & byteArray[i])); } return md5StrBuff.toString(); } } |
（5）FileController.java
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 |
package com.sun123.springboot.controller; import com.sun123.springboot.service.FileService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; import java.util.Map; /** * @ClassName FileController * @Description TODO * @Date 2019/3/22 22:21 * @Version 1.0 */ @Controller @RequestMapping (value = "/upload" ) public class FileController { @Autowired private FileService fileService; @RequestMapping (value = "/UpLoadImage" ) @ResponseBody public Map<String,Object> fileUpload( @RequestParam ( "file" ) MultipartFile[] file) throws Exception { Map<String, Object> fileUpload = fileService.fileUpload(file); return fileUpload; } } |
4、前台代码（bootstrap）
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 |
<div class= "container" th:fragment= "fileupload" > <input id= "uploadfile" type= "file" class= "file" multiple= "multiple" name= "file" /> </div> <script> $( "#uploadfile" ).fileinput({ language: 'zh' , //设置语言 //uploadUrl: "http://127.0.0.1/testDemo/fileupload/upload.do", //上传的地址 uploadUrl: "/upload/UpLoadImage" , //上传的地址 allowedFileExtensions: [ 'jpg' , 'gif' , 'png' , 'docx' , 'zip' , 'txt' ], //接收的文件后缀 //uploadExtraData:{"id": 1, "fileName":'123.mp3'}, showClose: false , //是否显示关闭按钮 uploadAsync: true , //默认异步上传 showUpload: true , //是否显示上传按钮 //showBrowse: true, //是否显示浏览按钮 showRemove: true , //显示移除按钮 showPreview: true , //是否显示预览 showCaption: false , //是否显示标题 browseClass: "btn btn-primary" , //按钮样式 dropZoneEnabled: true , //是否显示拖拽区域 //previewFileType: ['docx'], //预览文件类型 //minImageWidth: 50, //图片的最小宽度 //minImageHeight: 50,//图片的最小高度 //maxImageWidth: 1000,//图片的最大宽度 //maxImageHeight: 1000,//图片的最大高度 maxFileSize:0, //单位为kb，如果为0表示不限制文件大小 //minFileCount: 0, maxFileCount: 10, //表示允许同时上传的最大文件个数 enctype: 'multipart/form-data' , validateInitialCount: true , previewFileIcon: "<iclass='glyphicon glyphicon-king'></i>" , msgFilesTooMany: "选择上传的文件数量({n}) 超过允许的最大数值{m}！" , }).on( "fileuploaded" , function (event, data, previewId, index) { }); </script> |
以上为个人经验，希望能给大家一个参考，也希望大家多多支持。
原文链接：https://HdhCmsTestcnblogs测试数据/116970u/p/10583176.html
查看更多关于SpringBoot+BootStrap多文件上传到本地实例的详细内容...