diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/only/controller/admin/only/onlyofController.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/only/controller/admin/only/onlyofController.java
index 5f6f4d8..20b6b64 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/only/controller/admin/only/onlyofController.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/only/controller/admin/only/onlyofController.java
@@ -129,6 +129,26 @@ public class onlyofController {
         return new ResponseEntity<Object>("上传成功", HttpStatus.OK);
     }
 
+    /**
+     * 预览文件的接口
+     */
+    @GetMapping("/view")
+    @Operation(summary = "编辑文件")
+    public ModelAndView viewDocFile(@RequestParam String name, String userName, String userId ,String cDate ,String token) {
+        String cDate2 = "";
+        cDate2 = cDate.isEmpty() ? cDate : cDate + "\\";
+        String path = filePath+cDate2+name;
+        ModelAndView mav = new ModelAndView();
+        Document document = documentService.getDocumentToken(documentService.buildDocument(path, name),token,cDate);
+        mav.addObject("document", document);
+        if (!documentService.canEdit(document)) {
+            return mav;
+        }
+        mav.addObject("documentEditParam", documentService.buildDocumentEditParamToken(userId, userName, name,token,cDate2));
+        mav.setViewName("viewer");
+        return mav;
+    }
+
     /**
      * 编辑文件的接口
      * @param name
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/resources/static/js/viewer.js b/yudao-module-bpm/yudao-module-bpm-biz/src/main/resources/static/js/viewer.js
new file mode 100644
index 0000000..0712344
--- /dev/null
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/resources/static/js/viewer.js
@@ -0,0 +1,175 @@
+var Editor = function () {
+    var docEditor;
+
+    var innerAlert = function (message) {
+        if (console && console.log)
+            console.log(message);
+    };
+
+    var onAppReady = function () {
+        innerAlert("文档编辑已就绪~");
+    };
+
+    var onDocumentStateChange = function (event) {
+        var title = document.title.replace(/\*$/g, "");
+        document.title = title + (event.data ? "*" : "");
+    };
+
+    var onError = function (event) {
+        if (event) {
+            innerAlert(event.data);
+        }
+    };
+
+    var onOutdatedVersion = function (event) {
+        //TODO
+        location.reload(true);
+    };
+    var onAppReady = function() {
+        console.log("ONLYOFFICE Document Editor is ready");
+    };
+    var onCollaborativeChanges = function () {
+        console.log("The document changed by collaborative user");
+    };
+    var onDocumentReady = function() {
+        console.log("Document is loaded");
+    };
+    var onDocumentStateChange = function (event) {
+        if (event.data) {
+            console.log("The document changed");
+            // docEditor.downloadAs();
+        } else {
+            console.log("Changes are collected on document editing service");
+            //
+        }
+    };
+    var onDownloadAs = function (event) {
+        console.log("ONLYOFFICE Document Editor create file: " + event.data);
+        window.top.postMessage(event.data);
+        createAndDownloadFile("test.docx",event.data)
+    };
+    window.addEventListener('message',function(e){
+        console.log(e.data)
+        if (e.data=="downloadAs") {
+            docEditor.downloadAs();
+        }
+    },false)
+
+    $("#insertImage").click(function(event) {
+        console.log("ONLYOFFICE Document Editor insertImage: "+ event.data);
+        docEditor.insertImage({
+            "fileType": "png",
+            "url": "http://192.168.0.58:20056/attachment/20190728测试上传文件名修改/2020January/1580363537940306800_small.png"
+        });
+    })
+
+    var onRequestInsertImage = function(event) {
+        console.log("ONLYOFFICE Document Editor insertImage" + event.data);
+        docEditor.insertImage({
+            "fileType": "png",
+            "url": "http://192.168.0.58:20056/attachment/20190728测试上传文件名修改/2020January/1580363537940306800_small.png"
+        });
+    };
+
+    var onError = function (event) {
+        console.log("ONLYOFFICE Document Editor reports an error: code " + event.data.errorCode + ", description " + event.data.errorDescription);
+    };
+    var onOutdatedVersion = function () {
+        location.reload(true);
+    };
+    var onRequestEditRights = function () {
+        console.log("ONLYOFFICE Document Editor requests editing rights");
+        // document.location.reload();
+        var he=location.href.replace("view","edit");
+        location.href=he;
+    };
+
+    //历史版本保留1个月。比如Unix时间戳（Unix timestamp）expires=1524547423
+    var onRequestHistory = function() {
+    };
+
+    var onRequestHistoryClose = function() {
+        document.location.reload();
+    };
+    var getUrlParam = function (name) {
+        //构造一个含有目标参数的正则表达式对象
+        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
+        //匹配目标参数
+        var r = window.location.search.substr(1).match(reg);
+        //返回参数值
+        if (r != null) {
+            return decodeURI(r[2]);
+        }
+        return null;
+    };
+
+    var getDocumentConfig = function (document) {
+        if (document) {
+            return {
+                "document": document
+            };
+        }
+        innerAlert("文档未指定！");
+        return null;
+    };
+    var onRequestHistoryData = function() {}
+    var сonnectEditor = function (document, documentEditParam) {
+
+        var config = getDocumentConfig(document);
+        console.log(document)
+        console.log(documentEditParam)
+        config.width = "100%";
+        config.height = "100%";
+        config.events = {
+            "onAppReady": onAppReady,
+            "onDocumentStateChange": onDocumentStateChange,
+            "onError": onError,
+            "onOutdatedVersion": onOutdatedVersion
+        };
+        //config.documentType = ""+document.fileType
+        config.editorConfig = {
+            "lang": "zh-CN",
+            "mode": "view",
+            "recent": [],
+            // 自定义一些配置
+            "customization": {
+                "chat": true, // 禁用聊天菜单按钮
+                "commentAuthorOnly": false, // 仅能编辑和删除其注释
+                "comments": false, // 隐藏文档注释菜单按钮
+                "compactHeader": false, // 隐藏附加操作按钮
+                "compactToolbar": false, // 完整工具栏(true代表紧凑工具栏)
+                "feedback": {
+                    "visible": true // 隐藏反馈按钮
+                },
+                "forcesave": false, // true 表示强制文件保存请求添加到回调处理程序
+                "goback": false,/*{
+                            "blank": true, // 转到文档时，在新窗口打开网站(false表示当前窗口打开)
+                            "text": "转到文档位置（可以考虑放文档打开源页面）",
+                            // 文档打开失败时的跳转也是该地址
+                            "url": "http://www.lezhixing.com.cn"
+                        },*/
+                "help": false, // 隐藏帮助按钮
+                "hideRightMenu": false, // 首次加载时隐藏右侧菜单(true 为显示)
+                "showReviewChanges": false, // 加载编辑器时自动显示/隐藏审阅更改面板(true显示 false隐藏)
+                "toolbarNoTabs": false, // 清楚地显示顶部工具栏选项卡(true 代表仅突出显示以查看选择了哪一个)
+                "zoom": 100 // 定义文档显示缩放百分比值
+            },
+
+
+
+
+        };
+        $.extend(config.editorConfig, documentEditParam);
+        console.log(config)
+
+
+        docEditor = new DocsAPI.DocEditor("iframeEditor",config);
+    };
+
+    return {
+        init: function (document, documentEditParam) {
+            console.log("-----сonnectEditor-----")
+            сonnectEditor(document, documentEditParam);
+        }
+    }
+}();
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/resources/static/js/viewer2.js b/yudao-module-bpm/yudao-module-bpm-biz/src/main/resources/static/js/viewer2.js
new file mode 100644
index 0000000..568a39e
--- /dev/null
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/resources/static/js/viewer2.js
@@ -0,0 +1,97 @@
+var Viewer = function() {
+    var docEditor;
+
+    var innerAlert = function (message) {
+        if (console && console.log)
+            console.log(message);
+    };
+
+    var onAppReady = function () {
+        innerAlert("文档查看已就绪~");
+    };
+
+    var onDocumentStateChange = function (event) {
+        var title = document.title.replace(/\*$/g, "");
+        document.title = title + (event.data ? "*" : "");
+    };
+
+    var onError = function (event) {
+        if (event) {
+            innerAlert(event.data);
+        }
+    };
+
+    var onOutdatedVersion = function (event) {
+        location.reload(true);
+    };
+
+    var getUrlParam = function (name) {
+        //构造一个含有目标参数的正则表达式对象
+        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
+        //匹配目标参数
+        var r = window.location.search.substr(1).match(reg);
+        //返回参数值
+        if (r != null) {
+            return decodeURI(r[2]);
+        }
+        return null;
+    };
+
+    var getDocumentConfig = function (document) {
+        if (document) {
+            return {
+                "document": document
+            };
+        }
+        innerAlert("文档未指定！");
+        return null;
+    };
+
+    var сonnectEditor = function (document) {
+        var config = getDocumentConfig(document);
+        config.width = "100%";
+        config.height = "100%";
+        config.events = {
+            "onAppReady": onAppReady,
+            "onDocumentStateChange": onDocumentStateChange,
+            "onError": onError,
+            "onOutdatedVersion": onOutdatedVersion
+        };
+        config.editorConfig = {
+            "lang": "zh-CN",
+            "mode": "view",
+            "recent": [],
+            // 自定义一些配置
+            "customization": {
+                "chat": false, // 禁用聊天菜单按钮
+                "commentAuthorOnly": true, // 仅能编辑和删除其注释
+                "comments": false, // 隐藏文档注释菜单按钮
+                "compactHeader": false, // 隐藏附加操作按钮
+                "compactToolbar": false, // 完整工具栏(true代表紧凑工具栏)
+                "feedback": {
+                    "visible": false // 隐藏反馈按钮
+                },
+                "forcesave": false, // true 表示强制文件保存请求添加到回调处理程序
+                "goback": false,/*{
+                            "blank": true, // 转到文档时，在新窗口打开网站(false表示当前窗口打开)
+                            "text": "转到文档位置（可以考虑放文档打开源页面）",
+                            // 文档打开失败时的跳转也是该地址
+                            "url": "http://www.lezhixing.com.cn"
+                        },*/
+                "help": false, // 隐藏帮助按钮
+                "hideRightMenu": false, // 首次加载时隐藏右侧菜单(true 为显示)
+                "showReviewChanges": false, // 加载编辑器时自动显示/隐藏审阅更改面板(true显示 false隐藏)
+                "toolbarNoTabs": false, // 清楚地显示顶部工具栏选项卡(true 代表仅突出显示以查看选择了哪一个)
+                "zoom": 100 // 定义文档显示缩放百分比值
+            }
+
+        };
+        docEditor = new DocsAPI.DocEditor("iframeEditor", config);
+    };
+
+    return {
+        init : function(document) {
+            сonnectEditor(document);
+        }
+    }
+}();
\ No newline at end of file
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/resources/templates/viewer.html b/yudao-module-bpm/yudao-module-bpm-biz/src/main/resources/templates/viewer.html
new file mode 100644
index 0000000..0fdef84
--- /dev/null
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/resources/templates/viewer.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org" lang="zh-CN">
+<head>
+    <title th:text="${document.title}"></title>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <link rel="stylesheet" type="text/css" th:href="@{/css/viewer.css}">
+</head>
+<!--//整个文件就是前端打开的编辑窗口的配置-->
+<body>
+<div class="form">
+    <div id="iframeEditor"></div>
+    <h1 th:text="${document.title}">Document Title</h1>
+    <pre th:text="${documentEditParam}">Document Edit Param</pre>
+</div>
+<script type="text/javascript" th:src="@{/js/jquery-1.8.2.js}"></script>
+<script type="text/javascript" th:src="@{${documentServerApiJs}}"></script>
+<script type="text/javascript" th:src="@{/js/viewer.js}"></script>
+<!-- 先通过 th:inline=“javascript” 添加到标签，这样js代码即可访问model中的属性 -->
+<script th:inline="javascript">
+    // js 中可以通过“[[${xxx}]]” 格式获得实际的值
+    Editor.init([[${document}]], [[${documentEditParam}]]);
+</script>
+<!--    <script type="text/javascript" src="http://192.168.1.15:7878/web-apps/apps/api/documents/api.js"></script>-->
+</body>
+</html>