在自己写的借助于“若依”框架的springboot项目中，写上传下载功能，想记录一下，所以有了此篇文章。
##文件上传路径
// 定义文件上传路径 D:\\ 此为路径，可根据自己需求修改 file.fileUploadPath=D:\\AA\\bankCardService##定义上传FileUploadProp实体类
package com.cn.web.prop; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.PropertySource; import org.springframework.stereotype.Component; @Component @ConfigurationProperties(prefix = "file") @PropertySource(value = "filePath.properties") public class FileUploadProp { private String fileUploadPath; public String getFileUploadPath() { return fileUploadPath; } public void setFileUploadPath(String fileUploadPath) { this.fileUploadPath = fileUploadPath; } }##文件上传前端界面upload.html
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3"><head> <th:block th:include="include :: header('【请填写功能名称】列表')" /> </head> <body class="white-bg"> <div class="wrapper wrapper-content animated fadeInRight ibox-content"> <form class="form-horizontal m" id="form-appendix-add" enctype="multipart/form-data"> <input type="hidden" name="appendixRelevanceid" id="appendixRelevanceid" class="form-control" th:value="${arId}"> <div class="form-group"> <label class="col-sm-3 control-label">文件：</label> <div class="col-sm-8"> <input name="file" id="file" class="form-control" type="file"> </div> </div> <div class="form-group"> <label class="col-sm-3 control-label">说明：</label> <div class="col-sm-8"> <input type="text" name="appendixRemark" id="appendixRemark" class="form-control"> </div> </div> </form> </div> <th:block th:include="include :: footer" /> <script th:inline="javascript"> const prefix = ctx + "web/targetAppendix"; function submitHandler() { uploadFile(); } //上传方法 function uploadFile(){ // debugger; var formData = new FormData(); if ($('#file')[0].files[0] == null) { $.modal.alertWarning("请先选择文件"); return false; } //参数 formData.append('appendixRelevanceid', $("#appendixRelevanceid").val()); formData.append('appendixRemark', $("#appendixRemark").val()); //文件 formData.append('file', $('#file')[0].files[0]); //上传 $.ajax({ url: prefix + "/addAppendix", type: 'post', cache: false, data: formData, processData: false, contentType: false, dataType: "json", success: function(result) { $.operate.successCallback(result); } }); } </script> </body> </html>xxController.java
// 文件上传保存 @PostMapping("/addAppendix") @ResponseBody public AjaxResult addAppendix(@RequestParam("file") MultipartFile file, TargetAppendix targetAppendix) { System.out.println("资源查看附件"+fileUploadProp.getFileUploadPath()); if(file == null){ return AjaxResult.error("文件不允许为空"); } //文件名 String fileName = file.getOriginalFilename(); //文件后缀名 String suffixName = fileName.substring(fileName.lastIndexOf(".")+1); //新文件名 String newFileName = UUID.randomUUID().toString().replaceAll("-", "").toUpperCase(); //拿到路径 String realPath = fileUploadProp.getFileUploadPath(); //文件夹不存在的时候创建一个 File dir = new File(realPath); if(!dir.exists()){ dir.mkdirs(); } String transFerName = newFileName+"."+suffixName; //创建file对象，新地址新名字 File newFile = new File(realPath, transFerName); try { file.transferTo(newFile); } catch (IOException e) { e.printStackTrace(); return AjaxResult.error("文件上传失败"); } String id = TargetUtils.getUUID(); targetAppendix.setId(id); targetAppendix.setAppendixName(fileName); targetAppendix.setAppendixHidename(transFerName); targetAppendix.setAppendixUrl(realPath+"\\"+transFerName); //获取当前登陆人 SysUser sysUser = ShiroUtils.getSysUser(); targetAppendix.setCreateId(String.valueOf(sysUser.getUserId())); targetAppendix.setCreateBy(sysUser.getLoginName()); targetAppendix.setCreateTime(TargetUtils.getDate()); return toAjax(targetAppendixService.insertTargetAppendix(targetAppendix)); }希望对您有所帮助！
