feat(validation): wjy添加系统过期校验拦截器

- 新增 ValidationInterceptor 拦截器实现系统过期检查
- 配置拦截器注册，排除 /error 路径
- 实现基于 Base64期日期配置 编码的过读取
- 添加系统过期时的 JSON 格式错误响应
- 提供静态方法供外部调用检查系统状态
- 记录系统过期检查相关日志信息

aucma-framework/src/main/java/com/aucma/framework/validation/InterceptorConfig.java

@@ -0,0 +1,28 @@
+package com.aucma.framework.validation;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+/**
+ * @author Wen JY
+ * @description: 系统校验拦截器配置
+ * @date 2025-10-09 17:14:00
+ * @version: 1.0
+ */
+@Configuration
+public class InterceptorConfig implements WebMvcConfigurer {
+
+    @Bean
+    public ValidationInterceptor interceptor() {
+        return new ValidationInterceptor();
+    }
+
+    @Override
+    public void addInterceptors(InterceptorRegistry registry) {
+        registry.addInterceptor(interceptor())
+                .addPathPatterns("/**")
+                .excludePathPatterns("/error");
+    }
+}

aucma-framework/src/main/java/com/aucma/framework/validation/ValidationInterceptor.java

@@ -0,0 +1,93 @@
+package com.aucma.framework.validation;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.servlet.HandlerInterceptor;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.time.Instant;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.Base64;
+
+/**
+ * @author Wen JY
+ * @description: 系统校验拦截器
+ * @date 2025-10-09 17:20:25
+ * @version: 1.0
+ */
+public class ValidationInterceptor implements HandlerInterceptor {
+
+    private static final Logger logger = LoggerFactory.getLogger(ValidationInterceptor.class);
+
+    // 配置系统过期日期（可以从配置文件中读取）
+    @Value("${system.expire.date:MjAyNi0wMS0wMQ==}") // 默认2026-01-01
+    private String expireDateBase64;
+
+    @Override
+    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+        // 检查是否已过期
+        if (isSystemExpired()) {
+            handleExpiredRequest(request, response);
+            return false; // 拦截请求
+        }
+        return true; // 放行请求
+    }
+
+    /**
+     * 检查系统是否已过期
+     */
+    public boolean isSystemExpired() {
+        try {
+            byte[] decode = Base64.getDecoder().decode(expireDateBase64);
+            String dateStr = new String(decode, StandardCharsets.UTF_8);
+
+            DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy-MM-dd");
+            LocalDate expireDate = LocalDate.parse(dateStr, dtf);
+            LocalDate currentDate = LocalDate.now();
+
+            logger.debug("系统过期检查: 当前日期={}, 过期日期={}, 是否过期={}",
+                    currentDate, expireDate, currentDate.isAfter(expireDate));
+
+            return currentDate.isAfter(expireDate);
+
+        } catch (Exception e) {
+            logger.error("系统过期检查失败，默认不拦截", e);
+            return false; // 解析失败时默认不拦截，避免影响系统正常运行
+        }
+    }
+
+    /**
+     * 处理过期请求
+     */
+    private void handleExpiredRequest(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        logger.warn("拦截过期系统访问: {} {}", request.getMethod(), request.getRequestURI());
+
+        response.setStatus(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
+        response.setContentType("application/json;charset=UTF-8");
+
+        String errorResponse = "{\"code\": 503, \"message\": \"系统已过期，请联系管理员\", \"timestamp\": \""
+                + Instant.now().toString() + "\"}";
+
+        response.getWriter().write(errorResponse);
+        response.getWriter().flush();
+    }
+
+    /**
+     * 静态方法，供其他类调用检查系统状态
+     */
+    public static boolean checkSystemStatus() {
+        try {
+            ValidationInterceptor interceptor = new ValidationInterceptor();
+            interceptor.expireDateBase64 = "MjAyNi0wMS0wMQ==";      //默认 2026-01-01
+            return !interceptor.isSystemExpired();
+        } catch (Exception e) {
+            return true; // 检查失败时默认系统可用
+        }
+    }
+
+}