完成操作日志的记录

src/main/java/cn/iocoder/dashboard/util/servlet/ServletUtils.java

@@ -5,6 +5,7 @@ import cn.hutool.extra.servlet.ServletUtil;
 import com.alibaba.fastjson.JSON;
 import org.springframework.http.MediaType;
 
+import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.io.IOException;
 import java.net.URLEncoder;
@@ -44,4 +45,13 @@ public class ServletUtils {
         IoUtil.write(response.getOutputStream(), false, content);
     }
 
+    /**
+     * @param request 请求
+     * @return ua
+     */
+    public static String getUserAgent(HttpServletRequest request) {
+        String ua = request.getHeader("User-Agent");
+        return ua != null ? ua : "";
+    }
+
 }