//新增模板接口
@PreAuthorize("@ss.hasPermi('pshdhx:template:add')")
@Log(title="template",businessType=BusinessType.INSERT)
@PostMapping("add")
@ResponseBody
public AjaxResult add (Template template,MutipartFile file){
if(file!=null){
String filePath = MyProjectConfig.getUploadPath(); //获取服务器上传文件的路径
String templateFilePath = FileUploadUtil.upload(filePath,file); //文件上传，返回文件存储路径
template.setTemplateFilePath(templateFilePath);
template.setTemplateFileName(file.getOriginalFilename());
}
return toAjax(templateService.insertTemplate(template));
}
//文件上传工具类
/**
*@author pshdhx
*/
public class FileUploadUtil{
//默认大小
public static final long DEFAULT_MAX_SIZE = 50 *1024 *1024;
//默认的文件名最大长度
public static final int DEFAULT_FILE_NAME_LENGTH = 100;
//默认上传的服务器路径
private staitc String defaultBaseDir = MyProject.getProfile();
private staitc int counter = 0;
public static void setDefaultBaseDir(String defaultBaseDir){
FileUploadUtil.defaultBaseDir = defaultBaseDir;
}
public static String getDefaultBaseDir(){
return defaultBaseDir;
}
//以默认配置进行文件上传
public static final String upload(MutipartFile file) throws IOException{
try{
return upload(getDefaultBaseDir(),file,MimeTypeUtils.Default_ALLOWED_EXTENSION);
}
catch(Exception e){
throw new IOException(e.getMessage(),e);
}
}
//根据文件路径进行上传
public static final String upload(String baseDir,MultipartFile file) throws Excetion{
try{
return upload(baseDir,MimeTypeUtil.DEFAULT_ALLOWED_EXTENSION);
}catch(Exception){
throw new IOException(e.getMessage(),e);
}
}
//文件上传
public static final String upload(String baseDir,MutipartFile file,String[] allowedExtension)
throws FileSizeLimitExceededException,IOEXxception,FileNameLengthLimitExceedException,
InvalidExtensionException{
int fileNamelength = file.getOriginalFilename().length();
if(fileNamelength>FileUploadUti.DEFAULT_FILE_NAME_LENGTH){
throw new FileNameLengthLimitExceededException(FileUploadUtil.DEFAULT_FILE_NAME_LENGTH);
}
assertAllowed(file,allowedExtension);
String fileName = extracFilename(file);
File desc = getAbsoluteFile(baseDir,fileName);
file.transferTo(desc);
String pathFileName = getPathFileName(baseDir,fileName);
return pathFileName;
}
//编码文件名
public static final String extracFilename(MultiPartFile file){
String fileName = file.getOriginalFilename();
String extension = getExtension(file);
fileName = encodingFilename(fileName)+ "." + extension;
return fileName;
}
public static final File getAbsoluteFile(String uploadDir,String fileName) throws IOException{
File desc = new File(new File(uploadDir).getAbsolutePath()+File.spearator+fileName);
if(!desc.getParantFile().exists()){
desc.getParentFile().mkdirs();
}
if(!desc.exists()){
desc.createNewFile();
}
return desc;
}
private static final String getPathFileName(String uploadDir,String fileName) throws IOException{
int dirLastIndex = MyProject.getProfile().length()+1;
String currentDir = StringUtils.subString(uploadDir,DirLastIndex);
String pathFileName = "/"+currentDir+"/"+fileName;
return pathFileName;
}
//编码文件名
private static final String encodingFilename(String fileName){
fileName = fileName.replace("_"," ");
fileName = Md5Utils.hash(fileName);
return fileName;
}
//文件大小检验
public static final void assertAllowed(MultipartFile file,String[] allowedExtension) throws
FileSizeLimitExceededException,InvalidExtendsionException{
long size = file.getSize();
if(DEFAULT_MAX_SIZE !=-1 && size> DEFAULT_MAX_SIZE){
throw new FileSizeLimitExceededException(DEFAULT_MAX_SIZE/1024/2014);
}
String fileName = file.getOriginalFilename();
String extension = getExtension(file);
if(allowedExtension != null && !isAllowedExtension(extension,allowedExtension)){
if(allowedExtension == MimeTypeUtils.IMAGE_EXTENSION){
throw new InvalidExtensionException.InvalidImageExtensionException(allowedExtension,extension,fileName);
}else if(allowedExtension == MimeTypeUtils.FLASH_EXTENSION){
throw new InvalidExtension.InvalidFlashExtensionException(allowedExtension,extension,fileName);
}else if(allowedExtension == MimeTypeUtils.MEDIA_EXTENSION){
throw new InvalidExtensionException.InvalidMediaExtensionException(
allowedExtension,extension,fileName);
}else{
throw new InvalidExtensionException(allowedExtension,extension,fileName);
}
}
}
//判断ＭＩＭＥ类型是否是ＭＩＭＥ允许的类型
public static fianl boolean isAllowedExtension(String extension,String[] allowedExtension){
for(String str : allowedExtension){
if(str.equalIgnoreCase(extension)){
return true;
}
}
return false;
}
//获取文件名的后缀
public static final String getExtension(MultipartFile file){
String extension = FilenameUtils.getExtension(file.getOriginalFilename());
if(StringUtils.isEmpty(extension)){
extension = MimeTypeUtils.getExtension(file.getContentType());
}
return extension;
}
}
//媒体类型工具类
public class MimeTypeUtis{
public staitc final String IMAGE_PNG = "image/png";
public static final String IMAGE_JPG = "image/jpg";
public static fianl String IMAGE_JPEG = "image/jpeg";
public static final String IMAGE_BMP = "image/bmp";
public static final String IMAGE_GIF = "image/gif";
public static fanal String[] IMAGE_EXTENSION = {"bmp","gif","jpg","jpeg","png"};
public static final String[] FLASH_EXTENSION = {"swf","flv"};
public static final String[] MEDIA_EXTENSION = {"swf","flv","mp3","wav","wma","wmv","mid","avi","mpg","asf","rm","rmvb"};
public static final String[] DEFAULT_ALLOWED_EXTENSION = {
//图片
"bmp","gif","jpg","jpeg","png",
//word excel powerpoint
"doc","docx","xls","xlsx","ppt","pptx","html","htm","txt",
//压缩文件
"rar","zip","gz","bz2",
//pdf
"pdf"
}
public static String getExtension(String prefix){
switch(prefix){
case IMAGE_PNG:
return "png";
case IMGE_JPG:
return "jpg";
case IMAGE_JPEG
return "jpeg";
case IMAGE_BMP
return "bmp";
case IMAGE_GIT
return "gif";
default:
return "";
}
}
}
element-ui +vue 实现文件上传前端
<el-form-item label="上传文件">
<el-upload
ref="upload"
:limit="1"
:data=”form“ //form是后端回显过来的表单数据
:headers="upload.headers"
:action="upload.url"
:auto-upload="false"
drag
:on-error="uploadFalse"
:on-success="uploadSuccess"
:on-progress="handleFileUploadProgress"
:before-upload="beforeAvatarUpload"
:on-preview="downloadFile"
:on-change="fileChange"
:file-list="fileList"
>
<i class="el-icon-upload"></i>
<div class="el-upload_text">
将文件拖到此处，或<em>点击上传</em>
</div>
</el-upload>
</el-form-item>
定义数据对象：
data(){
return{
upload:{
headers:{Authorization:"Bearer"+getToken()},
url:process.env.VUE_APP_BASE_API+"/basesystem/formtemplate/edit",
isUploading:false
},
fileList:[],
}
}，
methods:{
fileChange(file){
this.form.fileName = file.name;
this.changeFile = true;
},
uploadFalse(response,file,fileList){
this.$message({
message:'文件上传失败',
type:"error"
})
},
uploadSucccess(response,file,fileList){
if(response.code == 200){
this.$message({
message:'上传成功',
type:'succcess'
})
this.open = false;
this.getList(); //重新请求页面数据
}else{
this.$message({
message:'上传失败',
type:'error'
})
this.open = false;
this.getList();
}
},
handleFileUploadProgress(event,file,fileList){
this.uploadisUploading = true
},
//文件下载
downloadFile(file){
let a = document.createElement("a");
a.href = this.downloadUrl;
a.setAttribute("download","文件");
a.click();
},
//上传之前
beforeAvatarUpload(file){
this.form.fileName = file.name;
let tmp = file.name.subString(file.name.lastIndexOf(",")+1);
const extension1 = temp==="xlsx";
const extension2 = temp==="xlsm";
const extension3 = temp==="xls";
const ext = extension1||extension2||extension3;
if(!extension1&&!extension2&&!extension3){
this.$message({
message:'上传文件必须是xls或是xlsx文件',
type:'error'
})
}
const isLt1m = file.size/1024/1024<1;
if(!isLt1M){
this.$message({
message:'上传文件大小不能超过1MB'
type:'error'
})
}
return ext&& isLt1M;
},
//添加表单操作
handleAdd(){
this.upload.url = process.evu.VUE_APP_BASE_API+"/basesystem/formtempaltemanage/add",
this.reset();
this.getTreeselectFormClass();
this.open = true;
this.title = "添加表单模板"
}，
//修改表单操作
handleUpdate(row){
this.reset();
this.downloadUrl = proceess.env.VUE_APP_BASE_API+"/common/showing?delete=false&fileName="+row.fileName;
const formTemplateId = row.formTemplateId || this.ids
getTemplate(formTemplateId).then(response=>{
this.form = response.data;
this.open = true;
this.title = "修改表单模板"
this.fileList = [];
this.fileList.push({name:response.data.fileName,url:process.evn.VUE_APP_BASE_API+
"common/showing/?delte=false&fileName-"+response.data.formPath});
})
},
//提交按钮
submitForm:function(form){ //此处的form是从upload传递过来的
delete form.params; //因为后端用实体类接受，所要删除前端自带的参数，要不然后端会报错
this.$refs["form"].validate(valid=>{
if(valid){
if(this.form.formTemplateId!=undefined){
//走修改接口
uploadTemplate(this.form).then(res=>{
if(res.code == 200){
this.msgSuccess("修改成功");
this.open = false;
this.getList(); //重新请求表单数据
}else{
this.msgError(response.msg);
}
})
}else{
//走添加接口
this.$refs.upload.submit();
}
}
})
}
},