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schoolNewsServ/common/common-util/src/main/java/org/xyzh/Main.java

@@ -1,7 +0,0 @@
-package org.xyzh;
-
-public class Main {
-    public static void main(String[] args) {
-        System.out.println("Hello world!");
-    }
-}

schoolNewsServ/common/common-util/src/main/java/org/xyzh/common/utils/ServletUtil.java

@@ -0,0 +1,189 @@
+package org.xyzh.common.utils;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.web.context.request.RequestContextHolder;
+import org.springframework.web.context.request.ServletRequestAttributes;
+
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+
+/**
+ * @description ServletUtil.java文件描述 Servlet工具类
+ * @filename ServletUtil.java
+ * @author yslg
+ * @copyright xyzh
+ * @since 2025-10-07
+ */
+public class ServletUtil {
+
+    private static final String TOKEN_PREFIX = "Bearer ";
+
+    /**
+     * @description 获取当前请求对象
+     * @return HttpServletRequest 当前请求对象，无当前请求时返回null
+     * @author yslg
+     * @since 2025-10-07
+     */
+    public static HttpServletRequest getRequest() {
+        ServletRequestAttributes requestAttributes = 
+            (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
+        return requestAttributes != null ? requestAttributes.getRequest() : null;
+    }
+
+    /**
+     * @description 获取当前响应对象
+     * @return HttpServletResponse 当前响应对象，无当前请求时返回null
+     * @author yslg
+     * @since 2025-10-07
+     */
+    public static HttpServletResponse getResponse() {
+        ServletRequestAttributes requestAttributes = 
+            (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
+        return requestAttributes != null ? requestAttributes.getResponse() : null;
+    }
+
+    /**
+     * @description 从当前请求中获取token（无参方法）
+     * @return String token值，未找到返回null
+     * @author yslg
+     * @since 2025-10-07
+     */
+    public static String getToken() {
+        HttpServletRequest request = getRequest();
+        return request != null ? extractTokenFromRequest(request) : null;
+    }
+
+    /**
+     * @description 从当前请求中获取指定请求头
+     * @param headerName 请求头名称
+     * @return String 请求头值，未找到返回null
+     * @author yslg
+     * @since 2025-10-07
+     */
+    public static String getHeader(String headerName) {
+        HttpServletRequest request = getRequest();
+        return request != null ? request.getHeader(headerName) : null;
+    }
+
+    /**
+     * @description 从当前请求中获取指定请求参数
+     * @param paramName 参数名称
+     * @return String 参数值，未找到返回null
+     * @author yslg
+     * @since 2025-10-07
+     */
+    public static String getParameter(String paramName) {
+        HttpServletRequest request = getRequest();
+        return request != null ? request.getParameter(paramName) : null;
+    }
+
+    /**
+     * @description 获取当前请求的客户端IP地址
+     * @return String IP地址，未找到返回null
+     * @author yslg
+     * @since 2025-10-07
+     */
+    public static String getClientIpAddress() {
+        HttpServletRequest request = getRequest();
+        if (request == null) {
+            return null;
+        }
+
+        String ip = request.getHeader("X-Forwarded-For");
+        if (NonUtils.isNotEmpty(ip) && !"unknown".equalsIgnoreCase(ip)) {
+            // 多次反向代理后会有多个IP值，第一个为真实IP
+            int index = ip.indexOf(',');
+            if (index != -1) {
+                return ip.substring(0, index);
+            } else {
+                return ip;
+            }
+        }
+
+        ip = request.getHeader("X-Real-IP");
+        if (NonUtils.isNotEmpty(ip) && !"unknown".equalsIgnoreCase(ip)) {
+            return ip;
+        }
+
+        ip = request.getHeader("Proxy-Client-IP");
+        if (NonUtils.isNotEmpty(ip) && !"unknown".equalsIgnoreCase(ip)) {
+            return ip;
+        }
+
+        ip = request.getHeader("WL-Proxy-Client-IP");
+        if (NonUtils.isNotEmpty(ip) && !"unknown".equalsIgnoreCase(ip)) {
+            return ip;
+        }
+
+        ip = request.getHeader("HTTP_CLIENT_IP");
+        if (NonUtils.isNotEmpty(ip) && !"unknown".equalsIgnoreCase(ip)) {
+            return ip;
+        }
+
+        ip = request.getHeader("HTTP_X_FORWARDED_FOR");
+        if (NonUtils.isNotEmpty(ip) && !"unknown".equalsIgnoreCase(ip)) {
+            return ip;
+        }
+
+        return request.getRemoteAddr();
+    }
+
+    /**
+     * @description 获取当前请求的User-Agent
+     * @return String User-Agent值，未找到返回null
+     * @author yslg
+     * @since 2025-10-07
+     */
+    public static String getUserAgent() {
+        return getHeader("User-Agent");
+    }
+
+    /**
+     * @description 获取当前请求的完整URL
+     * @return String 完整URL，无当前请求时返回null
+     * @author yslg
+     * @since 2025-10-07
+     */
+    public static String getRequestUrl() {
+        HttpServletRequest request = getRequest();
+        if (request == null) {
+            return null;
+        }
+
+        StringBuffer url = request.getRequestURL();
+        String queryString = request.getQueryString();
+        if (NonUtils.isNotEmpty(queryString)) {
+            url.append('?').append(queryString);
+        }
+        return url.toString();
+    }
+
+    /**
+     * @description 从请求中提取token
+     * @param request HTTP请求对象
+     * @return String token
+     * @author yslg
+     * @since 2025-10-07
+     */
+    private static String extractTokenFromRequest(HttpServletRequest request) {
+        // 优先从Authorization头获取
+        String authHeader = request.getHeader(HttpHeaders.AUTHORIZATION);
+        if (NonUtils.isNotEmpty(authHeader) && authHeader.startsWith(TOKEN_PREFIX)) {
+            return authHeader.substring(TOKEN_PREFIX.length());
+        }
+
+        // 从请求参数中获取token
+        String token = request.getParameter("token");
+        if (NonUtils.isNotEmpty(token)) {
+            return token;
+        }
+
+        // 从请求头中获取token
+        token = request.getHeader("token");
+        if (NonUtils.isNotEmpty(token)) {
+            return token;
+        }
+
+        return null;
+    }
+}