<form enctype="multipart/form-data" id="uploadForm">

????<div id="uploadFileDiv" hidden="true" style="width: 60%;">

????????<input id="pdFile" name="file" type="file">

????????<div id="fileError" class="help-block"></div>

????????<br />

????</div>

</form>

????$("#pdFile").fileinput({

????????showPreview : false,

????????allowedFileExtensions : [ "zip", "bar", "bpmn", "bpmn20.xml" ], 限制文件类型

????????elErrorContainer : "#fileError",

????????browseClass : "btn btn-success",

????????browseLabel : "查找文件",

????????browseIcon : ‘<i class="glyphicon glyphicon-search"></i>‘,

????????removeClass : "btn btn-danger",

????????removeLabel : "删除",

????????removeIcon : ‘<i class="glyphicon glyphicon-trash"></i>‘,

????????uploadClass : "btn btn-info",

????????uploadLabel : "部署",

????????uploadIcon : ‘<i class="glyphicon glyphicon-upload"></i>‘,

????});

????$("#uploadForm").submit(function(event) {

????????var formData = http://www.mamicode.com/new FormData(this); 这里用的是this，如果是Form的话需要Form[0]

????????event.preventDefault(); 阻止当前提交事件，自行实现，否则会跳转

????????var grid = $(‘[data-role="pdGrid"]‘);

????????$.ajax({

????????????url : contextPath + ‘/activiti/pd/upload.koala‘,

????????????type : ‘POST‘,

????????????data : formData,

????????????contentType : false, 这两个参数需要被定义，否则报错

????????????processData : false,

????????????success : function(data) {

????????????????if (data.result == ‘success‘) {

????????????????????grid.message({

????????????????????????type : ‘success‘,

????????????????????????content : ‘部署成功‘

????????????????????});

????????????????????$("#uploadFileDiv").slideToggle("slow");

????????????????????grid.grid(‘refresh‘);

????????????????} else {

????????????????????grid.message({

????????????????????????type : ‘error‘,

????????????????????????content : data.result

????????????????????});

????????????????}

????????????},

????????????error : function() {

????????????????grid.message({

????????????????????type : ‘error‘,

????????????????????content : ‘部署失败‘

????????????????});

????????????}

????????});

????});

????@ResponseBody

????@RequestMapping("/upload")

????public Map<String, Object> uploadFile(@RequestParam MultipartFile file)

????{

????????Map<String, Object> dataMap = Maps.newHashMap();

????????String fileName = file.getOriginalFilename();

????????try

????????{

????????????InputStream fileInputStream = file.getInputStream();

XXXXXXXXXXXXXX

????????} catch (Exception e)

????????{

????????????dataMap.put("result", "部署流程时发生错误");

????????????e.printStackTrace();

????????}

????????dataMap.put("result", "success");

????????return dataMap;

????}

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" />