若依框架 --- pdf文件上传预览功能实现

闲话少说，上代码。 add.html上传图片；控制类保存； show.html展示图片文本。除此之外，文件上传需要配置存储在本地那个位置（application.yml中的profile），之后就可以通过查找该位置找到该文件。 add.html

<!DOCTYPE html>
<html lang="zh" xmlns:th="http://www.thymeleaf.org" >
<head>
    <th:block th:include="include :: header('修改整改任务')" />
    <th:block th:include="include :: bootstrap-fileinput-css"/>
    <th:block th:include="include :: select2-css" />
</head>
<body class="white-bg">
    <div class="wrapper wrapper-content animated fadeInRight ibox-content">
        <form class="form-horizontal m" id="form-reform-edit" th:object="${inspectionReform}">
            <input name="reformId" th:field="*{reformId}" type="hidden">
            <input name="reformCheckid" th:field="*{reformCheckid}" type="hidden">
            <div class="form-group">
                <label class="col-sm-3 control-label">整改照片路径：</label>
                <div class="col-sm-8 fileinput fileinput-new" data-provides="fileinput">
                    <div class="fileinput-preview thumbnail" data-trigger="fileinput" style="width: 200px; height: 150px;"></div>
                    <div class="">
                        <span class="btn btn-white btn-file"><span class="fileinput-new">选择图片</span><span class="fileinput-exists">更改</span> <input type="hidden" name="reformImgpath" th:field="*{reformImgpath}"><input id="filePath" type="file" th:field="*{reformImgpath}"></span>
                        <a href="#" class="btn btn-white fileinput-exists" data-dismiss="fileinput">清除</a>
                    </div>
                </div>
            </div>

        </form>
    </div>
    <th:block th:include="include :: footer" />
    <th:block th:include="include :: bootstrap-fileinput-js"/>
    <th:block th:include="include :: jasny-bootstrap-js" />
    <th:block th:include="include :: select2-js" />
    <script th:inline="javascript">
        var prefix = ctx + "model/reform";
        $("#form-reform-edit").validate({
            focusCleanup: true
        });

        function uploadFile(url) {
            var formData = new FormData();
            if ($('#filePath')[0].files[0] == null) {
                $.modal.alertWarning("请先选择文件路径");
                return false;
            }
            formData.append('reformId',$('#reformId').val());
            formData.append('file', $('#filePath')[0].files[0]);
         
            $.ajax({
                url: url,
                type: 'post',
                cache: false,
                data: formData,
                processData: false,
                contentType: false,
                dataType: "json",
                success: function(result) {
                    $.operate.successCallback(result);
                }
            });
        }

        function submitHandler() {
            if ($.validate.form()) {
                /*$.operate.save(prefix + "/edit", $('#form-check-edit').serialize());*/
                uploadFile(prefix+"/edit");
            }
        }
    </script>
</body>
</html>

控制类

/**
     * 修改保存整改任务
     */
    @RequiresPermissions("model:reform:edit")
    @Log(title = "整改任务", businessType = BusinessType.UPDATE)
    @PostMapping("/edit")
    @ResponseBody
    public AjaxResult editSave(@RequestParam("file") MultipartFile file, @RequestParam("userid")long userid,InspectionReform inspectionReform) throws IOException {
        User user = getSysUser();
        // 上传文件路径
        String filePath = RuoYiConfig.getUploadPath();
        // 上传并返回新文件名称
        String fileName = FileUploadUtils.upload(filePath, file);

        return toAjax(inspectionReformService.updateInspectionReform(inspectionReform));
    }

show.html

<!DOCTYPE html>
<html lang="zh" xmlns:th="http://www.thymeleaf.org" xmlns:shiro="http://www.pollix.at/thymeleaf/shiro">
<head>
    <th:block th:include="include :: header('整改任务列表')" />
</head>
<body class="gray-bg">
     <div class="container-div">
        <div class="row">
            <div class="col-sm-12 search-collapse">
                <form id="formId">
                    <div class="select-list">
                        <ul>
                            <li>
                                <label>创建人：</label>
                                <input type="text" name="reformCreateby"/>
                            </li>
                            <li>
                                <a class="btn btn-primary btn-rounded btn-sm" onclick="$.table.search()"><i class="fa fa-search"></i>&nbsp;搜索</a>
                                <a class="btn btn-warning btn-rounded btn-sm" onclick="$.form.reset()"><i class="fa fa-refresh"></i>&nbsp;重置</a>
                            </li>
                        </ul>
                    </div>
                </form>
            </div>

            <div class="btn-group-sm" id="toolbar" role="group">
               <!-- <a class="btn btn-success" onclick="$.operate.add()" shiro:hasPermission="model:reform:add">
                    <i class="fa fa-plus"></i> 添加
                </a>-->
                <a class="btn btn-primary single disabled" onclick="$.operate.edit()" shiro:hasPermission="model:reform:edit">
                    <i class="fa fa-edit"></i> 修改
                </a>
                <!--<a class="btn btn-danger multiple disabled" onclick="$.operate.removeAll()" shiro:hasPermission="model:reform:remove">
                    <i class="fa fa-remove"></i> 删除
                </a>-->
                <a class="btn btn-warning" onclick="$.table.exportExcel()" shiro:hasPermission="model:reform:export">
                    <i class="fa fa-download"></i> 导出
                </a>
            </div>
            <div class="col-sm-12 select-table table-striped">
                <table id="bootstrap-table"></table>
            </div>
        </div>
    </div>
    <th:block th:include="include :: footer" />
    <script th:inline="javascript">
        var editFlag = [[${@permission.hasPermi('model:reform:edit')}]];
        var removeFlag = [[${@permission.hasPermi('model:reform:remove')}]];
        var reformDeletedDatas = [[${@dict.getType('inspection_delete')}]];
        var reformStatusDatas = [[${@dict.getType('reform_status')}]];
        var prefix = ctx + "model/reform";

        $(function() {
            var options = {
                url: prefix + "/list",
                createUrl: prefix + "/add",
                updateUrl: prefix + "/edit/{id}",
                removeUrl: prefix + "/remove",
                exportUrl: prefix + "/export",
                modalName: "整改任务",
                columns: [{
                    checkbox: true
                },
                {
                    field: 'reformImgpath',
                    title: '整改照片路径',
                    formatter:function (value,row,index) {
                        return $.table.imageView(value);
                    }
                },
                {
                    title: '操作',
                    align: 'center',
                    formatter: function(value, row, index) {
                        var actions = [];
                        actions.push('<a class="btn btn-success btn-xs ' + editFlag + '" href="javascript:void(0)" onclick="$.operate.edit(\'' + row.reformId + '\')"><i class="fa fa-edit"></i>编辑</a> ');
                        actions.push('<a class="btn btn-danger btn-xs ' + removeFlag + '" href="javascript:void(0)" onclick="$.operate.remove(\'' + row.reformId + '\')"><i class="fa fa-remove"></i>删除</a>');
                        return actions.join('');
                    }
                }]
            };
            $.table.init(options);
        });
    </script>
</body>
</html>

若依框架 --- pdf文件上传预览功能实现

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