文件上传

一.文件上传    easyUI+ajax+SpringMVC

上传两个指定格式文件及基本信息，入库基本信息+将文件保存到服务器

1.jsp页面

    <div id="templatedlg" class="easyui-dialog" style="width:400px"
            closed="true" buttons="#templatedlg-buttons"  data-options="modal:true">
        <form id="templatefm" method="post" enctype="multipart/form-data" style="width:360px">
            <div style="margin-bottom:20px;font-size:14px;border-bottom:1px solid #ccc">模板信息</div>
            <div style="margin-bottom:10px">
                <input id="id" name="id" type="hidden">
                <input id="sourceCode" name="tplCode" class="easyui-textbox" required="true" label="编码:" style="width:100%">
            </div>
            <div style="margin-bottom:10px">
                <input id="sourceName" name="tplName" class="easyui-textbox" required="true" label="名称:" style="width:100%">
            </div>
            <div style="margin-bottom:10px">
                <input id="templateFile" class="easyui-filebox" name="templateFile" label="模板文件:" data-options="prompt:'请选择文件...'" style="width:100%">
            </div>
            <div style="margin-bottom:10px">
                <input id="jsonFile" class="easyui-filebox" name="jsonFile" label="json文件:" data-options="prompt:'请选择文件...',accept:'application/json'" style="width:100%">
            </div>
        </form>
    </div>
    <div id="templatedlg-buttons">
        <a id="templatesave" href="javascript:void(0)" class="easyui-linkbutton c6" iconCls="icon-ok" style="width:90px">保存</a>
        <a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-cancel" onclick="javascript:$('#templatedlg').dialog('close')" style="width:90px">取消</a>
    </div>
    <div id="templateloading">
         <div class="inputdiv" >
             <img class="prtspan span_1" src="${ctx}/statics/images/loading.gif"/>
             <h3 id="templatelodingMsg" class="prtspan span_1" >文件正在上传,请稍候......</h3>
         </div>
    </div>

 

2.js代码

    //（新增、编辑）弹窗保存
    $('#templatesave').bind("click", function(){
        var isValid = $("#templatefm").form('validate');
        if(!isValid){
            return isValid;
        }
        $('#templatefm').form({
            url: ctx + templateSaveOrUpdateURL,
            onSubmit: function () {
                template_loading_generate("upload");
            },
            success: function (date) {
                $('#templateloading').window('close');
                var result = JSON.parse(date);
                if (result.code == 0){
                    msgAlert('文件上传成功','success');
                    $('#templatedlg').dialog('close'); // close the dialog
                    $('#templatedg').datagrid('reload'); // reload the role data
                } else {
                    showMsg(result, 'error');
                }
            },
            error: function (date) {
                $('#templateloading').window('close');
                msgAlert('文件上传失败，请重试','error');
            }
        });
        $('#templatefm').submit();
    });
    //生成上传提示框
    function template_loading_generate(type){
        $('#templateloading').window({
            title:'系统提示',
            width:'300px',
            closable:false,
            collapsible:false,
            minimizable:false,
            maximizable:false,
            resizable:false,
            modal:true
        });
            $("#templatelodingMsg").text("文件正在上传,请稍候......")
        $('#templateloading').window('open');
    }

3.controller

    /**
     * 新增
     */
    @ResponseBody
    @RequestMapping(value = "/save", method = RequestMethod.POST)
    public R saveDataSource(
            @RequestParam String tplCode,
            @RequestParam  String tplName, 
            @RequestParam   MultipartFile templateFile,
            @RequestParam  MultipartFile jsonFile,
            HttpServletRequest request
            ) {
        Subject subject = SecurityUtils.getSubject();
        Object principal = subject.getPrincipal();
        JSONObject jsonObject = JSONObject.fromObject(principal);  
        String userId = jsonObject.getString("id"); 
        
        String tempName = templateFile.getOriginalFilename();
        String jsonName = jsonFile.getOriginalFilename();
        String[] tempType = tempName.split("\\.");
        String[] jsonType = jsonName.split("\\.");
        
        String check = fileCheck(tempType, jsonType);
        if(!StringUtils.isEmpty(check)){
             return R.error(check);
        }
        
        ReptTemplateVO template = new ReptTemplateVO();
        template.setTplCode(tplCode);
        template.setTplName(tplName);
        template.setJsonFile(jsonFile);
        template.setTemplateFile(templateFile);
        template.setTplFile(tempType[0]);
        template.setCreaterId(Long.valueOf(userId));
        template.setCreateTime(DateUtils.getCurrentTime());
        
        templateService.upload(template,request,0);
        return R.ok();
    }

4.service

    @Override
    public int upload(ReptTemplateVO template, HttpServletRequest request, Integer flag) {
        MultipartFile jsonFile = template.getJsonFile();
        MultipartFile templateFile = template.getTemplateFile();
        String tplFile = template.getTplCode();
        // 保存文件到服务器
        String realPath = request.getSession().getServletContext().getRealPath("/WEB-INF/jasper");
        try {
            if (!jsonFile.isEmpty())
                SaveFileFromInputStream(jsonFile, realPath , tplFile + ".json");
            if (!templateFile.isEmpty())
                SaveFileFromInputStream(templateFile, realPath , tplFile + ".jasper");
        } catch (IOException e) {
            e.printStackTrace();
        }

        // 入库记录
        if (flag == 0)
            templateDao.save(template);
        if (flag == 1) {
            templateDao.update(template);
        }
        return 0;
    }

    // 保存文件
    public void SaveFileFromInputStream(MultipartFile filedata, String path, String savefile) throws IOException {
        File tempFile = new File(path);
        if (!tempFile.exists()) {
            tempFile.mkdirs();
        }
        // 保存文件到服务器
        FileOutputStream fos;
        try {
            fos = new FileOutputStream(path + "//" + savefile);
            fos.write(filedata.getBytes());
            fos.close();
            // finalTime=(int)System.currentTimeMillis();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }