feat(ai): 添加AI服务鉴权工具类

- 新增 AiAuthTokenUtil 工具类用于获取AI服务访问令牌
- 实现基于用户名和密码的认证流程
- 集成 RestTemplate 发起登录请求
- 支持从配置文件读取认证所需URL及凭据
- 添加详细的日志记录便于调试和监控
- 处理认证过程中的异常情况并返回空值
- 解析响应体中的 access_token 并返回给调用方

alien-store/src/main/java/shop/alien/store/util/ai/AiAuthTokenUtil.java

@@ -0,0 +1,78 @@
+package shop.alien.store.util.ai;
+
+import com.alibaba.fastjson2.JSONObject;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.*;
+import org.springframework.stereotype.Component;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.util.StringUtils;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * AI 服务鉴权配置
+ */
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class AiAuthTokenUtil {
+
+    private final RestTemplate restTemplate;
+
+    @Value("${third-party-login.base-url}")
+    private String loginUrl;
+
+    @Value("${third-party-user-name.base-url}")
+    private String userName;
+
+    @Value("${third-party-pass-word.base-url}")
+    private String passWord;
+
+    /**
+     * 登录 AI 服务，获取 token
+     *
+     * @return accessToken
+     */
+    public String getAccessToken() {
+        log.info("登录Ai服务获取token...{}", loginUrl);
+        MultiValueMap<String, String> formData = new LinkedMultiValueMap<>();
+        formData.add("username", userName);
+        formData.add("password", passWord);
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
+        HttpEntity<MultiValueMap<String, String>> requestEntity = new HttpEntity<>(formData, headers);
+
+        ResponseEntity<String> response;
+        try {
+            log.info("请求Ai服务登录接口===================>");
+            response = restTemplate.postForEntity(loginUrl, requestEntity, String.class);
+        } catch (Exception e) {
+            log.error("请求AI服务登录接口失败", e);
+            return null;
+        }
+
+        if (response != null && response.getStatusCode() == HttpStatus.OK) {
+            String body = response.getBody();
+            log.info("请求Ai服务登录成功 postForEntity.getBody()\t{}", body);
+            if (StringUtils.hasText(body)) {
+                JSONObject jsonObject = JSONObject.parseObject(body);
+                if (jsonObject != null) {
+                    JSONObject dataJson = jsonObject.getJSONObject("data");
+                    if (dataJson != null) {
+                        return dataJson.getString("access_token");
+                    }
+                }
+            }
+            log.warn("AI服务登录响应解析失败 body: {}", body);
+            return null;
+        }
+
+        log.error("请求AI服务 登录接口失败 http状态：{}", response != null ? response.getStatusCode() : null);
+        return null;
+    }
+}
+
+