feat(biz): 实现可重试的HTTP客户端服务

- 新增RetryableHttpClient，支持自动登录和token刷新
- 实现线程安全的令牌管理机制
- 添加RestTemplate配置和条件化注入
- 创建业务HTTP客户端服务接口及实现类
- 集成Hutool工具库进行数据转换处理
- 实现API请求失败后的重试逻辑
- 添加详细的日志记录和异常处理机制

jeelowcode-module/jeelowcode-module-biz/src/main/java/com/jeelowcode/module/biz/config/HttpClientConfig.java

@@ -0,0 +1,22 @@
+package com.jeelowcode.module.biz.config;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * HttpClient配置类
+ *
+ * @author lingma
+ */
+@Configuration
+public class HttpClientConfig {
+
+    @Bean
+    @ConditionalOnMissingBean
+    public RestTemplate restTemplate() {
+        return new RestTemplate();
+    }
+
+}

jeelowcode-module/jeelowcode-module-biz/src/main/java/com/jeelowcode/module/biz/http/RetryableHttpClient.java

@@ -0,0 +1,149 @@
+package com.jeelowcode.module.biz.http;
+
+import cn.hutool.core.convert.Convert;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.HttpClientErrorException;
+import org.springframework.web.client.RestTemplate;
+
+import javax.annotation.PostConstruct;
+import javax.annotation.Resource;
+import java.util.Map;
+import java.util.concurrent.locks.ReentrantLock;
+
+/**
+ * 可重试的HttpClient，支持自动登录和token刷新
+ * 线程安全的实现，可以在并发环境下使用
+ */
+@Slf4j
+@Component
+@ConditionalOnProperty(
+        name = "jeelowcode.powerenv.baseurl", matchIfMissing = true)
+public class RetryableHttpClient {
+
+    @Value("${jeelowcode.powerenv.baseurl}")
+    private String baseUrl;
+
+    // 访问令牌URL
+    private static final String ACCESS_TOKEN_URL = "/_campus/open/accessToken.json";
+
+    // API接口URL
+    private static final String API_URL = "/_campus/open/api/invoked.json";
+
+    // 应用凭证
+    private static final String APP_KEY = "campusT0Yoh1U6tXD3ZVXy";
+    private static final String APP_SECRET = "3d4d89b5-8a14-4b83-a9aa-715bdc8264a1";
+
+    // 存储访问令牌及相关信息
+    private volatile String accessToken;
+    private volatile long tokenExpireTime;
+
+    // 用于保护令牌更新操作的锁
+    private final ReentrantLock tokenLock = new ReentrantLock();
+
+    // RestTemplate实例
+    @Resource
+    private RestTemplate restTemplate;
+
+    @PostConstruct
+    public void init() {
+        // 初始化时获取一次访问令牌
+        refreshAccessToken();
+    }
+
+    /**
+     * 获取API数据
+     *
+     * @return ResponseEntity<String> 响应结果
+     */
+    public ResponseEntity<String> getApiData() {
+        // 检查令牌是否过期，如果过期则刷新
+        if (isTokenExpired()) {
+            refreshAccessToken();
+        }
+
+        // 构建带access_token参数的URL
+        String url = API_URL + "?access_token=" + accessToken;
+
+        try {
+            // 尝试请求API
+            return restTemplate.getForEntity(url, String.class);
+        } catch (HttpClientErrorException.Unauthorized e) {
+            log.warn("API请求未授权，尝试刷新访问令牌后重试");
+            // 如果是401未授权错误，则刷新令牌后重试
+            refreshAccessToken();
+            url = API_URL + "?access_token=" + accessToken;
+            return restTemplate.getForEntity(url, String.class);
+        } catch (Exception e) {
+            log.error("请求API时发生异常", e);
+            throw e;
+        }
+    }
+
+    /**
+     * 刷新访问令牌
+     */
+    private void refreshAccessToken() {
+        tokenLock.lock();
+        try {
+            // 再次检查令牌是否已经被其他线程更新
+            if (!isTokenExpired()) {
+                return;
+            }
+
+            log.info("开始刷新访问令牌");
+
+            // 构造获取令牌的参数
+            String tokenUrl = baseUrl + ACCESS_TOKEN_URL + "?appKey=" + APP_KEY + "&" + APP_SECRET;
+
+            try {
+                // 请求访问令牌
+                ResponseEntity<?> response = restTemplate.getForEntity(tokenUrl, Map.class);
+
+                if (response.getStatusCode().is2xxSuccessful() && response.getBody() != null) {
+                    Map<String, Object> responseBody = Convert.toMap(String.class, Object.class, response.getBody());
+
+                    // 检查响应是否成功
+                    Boolean success = (Boolean) responseBody.get("success");
+                    if (success != null && success) {
+                        Map<String, Object> content = Convert.toMap(String.class, Object.class, responseBody.get("content"));
+
+                        // 更新访问令牌和过期时间
+                        accessToken = (String) content.get("access_token");
+                        Integer expiresIn = (Integer) content.get("expires_in");
+
+                        // 设置过期时间（提前5分钟过期以确保安全）
+                        tokenExpireTime = System.currentTimeMillis() + (expiresIn - 300) * 1000L;
+
+                        log.info("成功刷新访问令牌，新令牌将在 {} 过期", new java.util.Date(tokenExpireTime));
+                    } else {
+                        log.error("获取访问令牌失败: {}", responseBody);
+                        throw new RuntimeException("无法获取访问令牌: " + responseBody.get("msg"));
+                    }
+                } else {
+                    log.error("获取访问令牌失败，HTTP状态码: {}", response.getStatusCode());
+                    throw new RuntimeException("无法获取访问令牌，HTTP状态码: " + response.getStatusCode());
+                }
+            } catch (Exception e) {
+                log.error("刷新访问令牌时发生异常", e);
+                throw new RuntimeException("刷新访问令牌失败", e);
+            }
+        } finally {
+            tokenLock.unlock();
+        }
+    }
+
+    /**
+     * 检查令牌是否已过期
+     *
+     * @return boolean 如果令牌已过期返回true，否则返回false
+     */
+    private boolean isTokenExpired() {
+        // 如果令牌为空或者已经过期
+        return accessToken == null || System.currentTimeMillis() >= tokenExpireTime;
+    }
+
+}

jeelowcode-module/jeelowcode-module-biz/src/main/java/com/jeelowcode/module/biz/service/IBizHttpClientService.java

@@ -0,0 +1,18 @@
+package com.jeelowcode.module.biz.service;
+
+import org.springframework.http.ResponseEntity;
+
+/**
+ * 业务HTTP客户端服务接口
+ *
+ * @author lingma
+ */
+public interface IBizHttpClientService {
+
+    /**
+     * 获取API数据
+     *
+     * @return ResponseEntity<String> 响应结果
+     */
+    ResponseEntity<String> getApiData();
+}

jeelowcode-module/jeelowcode-module-biz/src/main/java/com/jeelowcode/module/biz/service/impl/BizHttpClientServiceImpl.java

@@ -0,0 +1,26 @@
+package com.jeelowcode.module.biz.service.impl;
+
+import com.jeelowcode.module.biz.http.RetryableHttpClient;
+import com.jeelowcode.module.biz.service.IBizHttpClientService;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+
+/**
+ * 业务HTTP客户端服务实现类
+ *
+ * @author lingma
+ */
+@Service
+public class BizHttpClientServiceImpl implements IBizHttpClientService {
+
+    @Resource
+    private RetryableHttpClient retryableHttpClient;
+
+    @Override
+    public ResponseEntity<String> getApiData() {
+        return retryableHttpClient.getApiData();
+    }
+
+}