上傳型別

accept =".pdf" 限制只有pdf的可以上傳

<form action="clientCreditQueryOrder_importFile.do" id="form2" enctype="multipart/form-data" method="post" >
   <table width="100%">
      <input id="ccqoid" hidden="hidden" />
      <tr>
         <td >附件：</td> <td ><input 
 
id="file" type="file" accept=".pdf" name="file" size="chars"></td>
      </tr>
   </table>

</form>

function myUpLoadFile(i){
   var form = myUp.find('form:first');
   myUp.dialog({
      title:'上傳附件',
      width:'340',
      height:'160',
      buttons:[{
         text:'確定'
 
,
         handler:function(){
            console.log(i+" ------");
            $("#ccqoid").val(i);
            var file = document.getElementById('file').files[0];
            if(file == null){
               $.messager.alert('提示',"請選擇上傳檔案");
               return false;
            }
            var 
 
a = 2;
            var b = file.size;
            var c = b/(1024 * 1024);
            if(c>a){
               $.messager.alert('提示',"上傳失敗，建議檔案大小為2M以內");
               return false;
            }
            submitForm(i);
         }},
         {
            text:'取消',
            handler:function(){
               myUp.dialog('close');
            }
         }]
   });
   myUp.dialog('open');
}

function submitForm(i){
   var formDate = new FormData($("#form2")[0]);
   $.ajax({
      url:'upload_importFile.do?ccqoid='+i,
      type:'POST',
      data:formDate,
      async:false,
      cache:false,
      contentType:false,
      processData:false,
      success:function(data){
         if(data.success){
            $.messager.alert('提示','匯入成功!');
            myUp.dialog('close');
            dg.datagrid('refreshReload');
         }
      },error:function(returndata){
      }
   });
};

private String fileFileName;
private File file;
private String ccqoid;
private String fileContentType;

public String getFileContentType() { return fileContentType; }

public void setFileContentType(String fileContentType) { this.fileContentType = fileContentType; }

public String getFileFileName() { return fileFileName; }
public void setFileFileName(String fileFileName) { this.fileFileName = fileFileName; }
public File getFile() {
   return file;
}
public void setFile(File file) { this.file = file; }
public String getCcqoid() { return ccqoid; }
public void setCcqoid(String ccqoid) { this.ccqoid = ccqoid; }

/**
 * 上傳pdf檔案
 * @throws IOException
 */
public JObject importFile() throws IOException {
   String savePath = Constants.PDF_SAVEPATH;
   String relPath = "";
   File f1 = new File(savePath);
   if (!f1.exists()) {
      f1.mkdirs();
   }
   if(fileFileName==null||("".equals(fileFileName))){
      throw new RuntimeException("請選擇檔案！");
   }
   DateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
   String format = df.format(new Date());
   InputStream inputStream = new FileInputStream(file);
   byte[] data = new byte[1024];
   int len = 0;
   FileOutputStream fileOutputStream = null;
   try {
      relPath = savePath+""+format+"-"+fileFileName;
      fileOutputStream = new FileOutputStream(relPath);
      while ((len = inputStream.read(data)) != -1) {
         fileOutputStream.write(data, 0, len);
      }
   } catch (IOException e) {
      e.printStackTrace();
   } finally {
      if (inputStream != null) {
         try {
            inputStream.close();
         } catch (IOException e) {
            e.printStackTrace();
         }
      }
      if (fileOutputStream != null) {
         try {
            fileOutputStream.close();
         } catch (IOException e) {
            e.printStackTrace();
         }
      }
   }
   return new JResult("成功");
}