diff --git a/basic-interface/src/main/java/ink/wgink/interfaces/manager/IFilesShowCodeService.java b/basic-interface/src/main/java/ink/wgink/interfaces/manager/IFilesShowCodeService.java
new file mode 100644
index 00000000..7f07fc23
--- /dev/null
+++ b/basic-interface/src/main/java/ink/wgink/interfaces/manager/IFilesShowCodeService.java
@@ -0,0 +1,47 @@
+package ink.wgink.interfaces.manager;
+
+import ink.wgink.pojo.bos.files.FilesShowCode;
+
+/**
+ * @ClassName: IFilesShowCodeService
+ * @Description: 文件查看码业务
+ * @Author: wanggeng
+ * @Date: 2022/8/1 17:12
+ * @Version: 1.0
+ */
+public interface IFilesShowCodeService {
+
+    String FILE_SHOW_CODE_KEY = "files:showCode:";
+    long SHOW_CODE_TIMEOUT_MILLIS = 1 * 60 * 1000L;
+
+    /**
+     * 添加展示码
+     *
+     * @param code
+     * @param fileId
+     * @param fileName
+     */
+    void addShowCode(String code, String fileId, String fileName);
+
+    /**
+     * 清除超时的展示码
+     */
+    void clearTimeoutShowCode();
+
+    /**
+     * 获取文件展示码
+     *
+     * @param fileId
+     * @param code
+     * @return
+     */
+    FilesShowCode getShowCode(String fileId, String code);
+
+    /**
+     * 获取文件展示码
+     *
+     * @param fileId
+     * @return
+     */
+    FilesShowCode getShowCode(String fileId);
+}
diff --git a/basic-pojo/src/main/java/ink/wgink/pojo/bos/files/FilesShowCode.java b/basic-pojo/src/main/java/ink/wgink/pojo/bos/files/FilesShowCode.java
new file mode 100644
index 00000000..abe6500f
--- /dev/null
+++ b/basic-pojo/src/main/java/ink/wgink/pojo/bos/files/FilesShowCode.java
@@ -0,0 +1,62 @@
+package ink.wgink.pojo.bos.files;
+
+import java.io.Serializable;
+
+/**
+ * @ClassName: FilesShowCode
+ * @Description: 文件展示码
+ * @Author: wanggeng
+ * @Date: 2022/8/1 17:28
+ * @Version: 1.0
+ */
+public class FilesShowCode implements Serializable {
+
+    private static final long serialVersionUID = -9038597031617647650L;
+    private String code;
+    private String fileId;
+    private String fileName;
+    private Long latestUpdateTime;
+
+    public FilesShowCode() {
+    }
+
+    public FilesShowCode(String code, String fileId, String fileName) {
+        this.code = code;
+        this.fileId = fileId;
+        this.fileName = fileName;
+        this.latestUpdateTime = System.currentTimeMillis();
+    }
+
+    public String getCode() {
+        return code == null ? "" : code.trim();
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getFileId() {
+        return fileId == null ? "" : fileId.trim();
+    }
+
+    public void setFileId(String fileId) {
+        this.fileId = fileId;
+    }
+
+    public String getFileName() {
+        return fileName == null ? "" : fileName.trim();
+    }
+
+    public void setFileName(String fileName) {
+        this.fileName = fileName;
+    }
+
+    public Long getLatestUpdateTime() {
+        return latestUpdateTime == null ? 0 : latestUpdateTime;
+    }
+
+    public void setLatestUpdateTime(Long latestUpdateTime) {
+        this.latestUpdateTime = latestUpdateTime;
+    }
+
+}