优化协同编辑查看功能，只读用户可以查看在线编辑用户编辑的内容

src/main/java/com/oo/onlyoffice/api/impl/OnlyServiceAPIImpl.java

             return documentEdit(map, collaborativeEditing, clientType);
         }
         if (VIEW.equals(mode)) {
-            return documentView(map, clientType);
+            return documentView(map, collaborativeEditing, clientType);
         }
+//        if (VIEW.equals(mode)) {
+//            return documentView(map, clientType);
+//        }
         return null;
     }
 
     private Map documentEdit(Map<String, Object> map, boolean collaborativeEditing, String clientType) {
-        FileConfig fileConfigDTO = openEditConfig(map, "edit", collaborativeEditing,clientType);
+        FileConfig fileConfigDTO = openEditConfig(map, "edit", collaborativeEditing, clientType);
         String json = JSON.toJSONString(fileConfigDTO);
         Map<String, Object> config = JSON.parseObject(json, Map.class);
         config.put("type", clientType);
         return config;
     }
 
+    private Map documentView(Map<String, Object> map, boolean collaborativeEditing, String clientType) {
+        FileConfig fileConfigDTO = openEditConfig(map, "view", collaborativeEditing, clientType);
+        String json = JSON.toJSONString(fileConfigDTO);
+        Map<String, Object> config = JSON.parseObject(json, Map.class);
+        config.put("type", clientType);
+        return config;
+    }
 
-    private Map documentView(Map<String, Object> map,String clientType) {
-        FileConfig fileConfigDTO = openEditConfig(map, "view", false,clientType);
+    private Map documentView(Map<String, Object> map, String clientType) {
+        FileConfig fileConfigDTO = openEditConfig(map, "view", false, clientType);
         String json = JSON.toJSONString(fileConfigDTO);
         Map<String, Object> config = JSON.parseObject(json, Map.class);
         config.put("type", clientType);
         return config;
     }
 
-    private FileConfig openEditConfig(Map<String, Object> map, String mode, boolean collaborativeEditing,String clientType) {
+    private FileConfig openEditConfig(Map<String, Object> map, String mode, boolean collaborativeEditing, String clientType) {
         try {
             map.put("mode", mode);
             log.info("开始生成文件信息");
             FileMetadata tempFileInfo = fileHandler.handlerFile(map, collaborativeEditing);
             //生成配置文件 TODO: 控制文件权限
             log.info("开始生成编辑器配置信息");
-            FileConfig fileConfigDTO = onlyOfficeConfigFactory.buildInitConfig(tempFileInfo.getUrl(), mode, tempFileInfo.getKey(), tempFileInfo.getOldName(),clientType);
+            FileConfig fileConfigDTO = onlyOfficeConfigFactory.buildInitConfig(tempFileInfo.getUrl(), mode, tempFileInfo.getKey(), tempFileInfo.getOldName(), clientType);
             log.info("生成编辑器配置信息结束");
             // TODO: 添加更多详细的自定义信息
             return fileConfigDTO;

src/main/java/com/oo/onlyoffice/core/FileConfigFactory.java

 package com.oo.onlyoffice.core;
 
 import cn.hutool.core.date.DateUtil;
+import com.alibaba.fastjson2.JSONObject;
 import com.oo.onlyoffice.config.OnlyProperties;
 import com.oo.onlyoffice.dto.DocumentConfig;
 import com.oo.onlyoffice.dto.EditorConfig;
      * @return 配置信息
      */
     @Override
-    public FileConfig buildInitConfig(String fileUrl, String mode, String key, String fileName,String clientType) {
+    public FileConfig buildInitConfig(String fileUrl, String mode, String key, String fileName, String clientType) {
 
         Map<String, Object> map = new HashMap<>();
 
         String callBackUrl = onlyProperties.getLocalhostAddress() + onlyProperties.getCallBackUrl();
 
         EditorConfig editorConfig = new EditorConfig(callBackUrl, mode);
-        editorConfig.setFileCustomization(getFileCustomization(mode,clientType));
+        editorConfig.setFileCustomization(getFileCustomization(mode, clientType));
         editorConfig.setFileUser(user);
         editorConfig.setPlugins(getPlugins());
-
-
+        //共同编辑"coEditing"配置：
+        //        "coEditing": {           "mode": "fast","change": true}
+        JSONObject coEditing = new JSONObject();
+        coEditing.put("mode", "fast");
+        coEditing.put("change", "true");
+        editorConfig.setCoEditing(coEditing);
         fileConfigDTO.setEditorConfig(editorConfig);
         map.put("editorConfig", editorConfig);
 
         return LoadConfigUtil.getCustomization();
     }
 
-    private FileCustomization getFileCustomization(String mode,String clientType) {
+    private FileCustomization getFileCustomization(String mode, String clientType) {
         FileCustomization customization = LoadConfigUtil.getCustomization();
         if (mode != null && !(mode.trim()).equals("") && mode.equals("edit")) {
             customization.setAutosave(true);
         }
         customization.setMobileForceView(false);
-        if(clientType!=null&&clientType!=""&&"mobile".equals(clientType)){
+        if (clientType != null && clientType != "" && "mobile".equals(clientType)) {
             customization.setMobileForceView(true);
         }
         return customization;

src/main/java/com/oo/onlyoffice/core/handler/FileHandlerImpl.java

                     cache.set(user.getId() + "_" + id, key);
                     cache.set("getID_" + key, id);
                 }
-            } else {//查看模式
-                key = id;
+            } else {
+                //查看模式
+                if (collaborativeEditing) {
+                    if (cache.get("collaborativeEditing_" + id) != null) {
+                        key = (String) cache.get("collaborativeEditing_" + id);
+                    } else {
+                        key = IdUtil.simpleUUID();
+                        cache.set("collaborativeEditing_" + id, key);
+                        cache.set("getID_" + key, id);
+                    }
+                } else {
+                    key = IdUtil.simpleUUID();
+                    FileUser user = SecurityUtils.getUserSession();
+                    cache.set(user.getId() + "_" + id, key);
+                    cache.set("getID_" + key, id);
+                }
+              //  key = id;
             }