获取优惠卷

src/main/java/com/rj/service/impl/LbUserCouponServiceImpl.java

@@ -7,6 +7,8 @@ import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.PropertyNamingStrategies;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.rj.dto.hxr.HxrMoneyCouponApiContext;
 import com.rj.dto.hxr.HxrUserLoginApiContext;
 import com.rj.entity.LbThirdIntegrationConfig;
@@ -211,43 +213,97 @@ public class LbUserCouponServiceImpl
             return null;
         }
 
-        int pageLimit = recentDays > 0 ? recentDays : 90;
-        String uri = couponApiBaseUrl + (couponApiBaseUrl.contains("?") ? "&" : "?") + "limit=" + pageLimit;
+        // 每页条数使用配置值
+        int pageSize = ctx.pageLimit() > 0 ? ctx.pageLimit() : 10;
+        // 总共需要获取的条数
+        int totalNeeded = recentDays > 0 ? recentDays : 90;
 
-        long timestamp = System.currentTimeMillis() / 1000;
-        String noncestr = randomNoncestr();
-        Map<String, Object> signParams = new LinkedHashMap<>();
-        signParams.put("timestamp", timestamp);
-        signParams.put("noncestr", noncestr);
-        String sign = HxrGoodsSignUtil.computeSign(signParams, ctx.appStr().trim());
+        List<JsonNode> allItems = new ArrayList<>();
+        int page = 1;
+        int fetched = 0;
 
         HttpClient client = HttpClient.newBuilder()
                 .connectTimeout(Duration.ofSeconds(60))
                 .followRedirects(HttpClient.Redirect.NORMAL)
                 .build();
 
-        HttpRequest request = HttpRequest.newBuilder()
-                .uri(URI.create(uri))
-                .timeout(Duration.ofSeconds(120))
-                .header("Accept", "application/json,*/*")
-                .header("Accept-Language", "zh-CN,zh;q=0.9,en;q=0.8")
-                .header("Origin", ctx.origin())
-                .header("Referer", ctx.referer())
-                .header("User-Agent", USER_AGENT)
-                .header(HEADER_TOKEN, ctx.token())
-                .header("S", sign)
-                .header("T", String.valueOf(timestamp))
-                .header("N", noncestr)
-                .GET()
-                .build();
+        while (fetched < totalNeeded) {
+            int limit = Math.min(pageSize, totalNeeded - fetched);
+            String uri = couponApiBaseUrl + (couponApiBaseUrl.contains("?") ? "&" : "?")
+                    + "cate=2&type=1&page=" + page + "&limit=" + limit;
 
-        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
-        int status = response.statusCode();
-        if (status < 200 || status >= 300) {
-            log.warn("优惠券API HTTP {} bodyPrefix={}", status, abbreviate(response.body(), 400));
+            long timestamp = System.currentTimeMillis() / 1000;
+            String noncestr = randomNoncestr();
+            Map<String, Object> signParams = new LinkedHashMap<>();
+            signParams.put("timestamp", timestamp);
+            signParams.put("noncestr", noncestr);
+            String sign = HxrGoodsSignUtil.computeSign(signParams, ctx.appStr().trim());
+
+            HttpRequest request = HttpRequest.newBuilder()
+                    .uri(URI.create(uri))
+                    .timeout(Duration.ofSeconds(120))
+                    .header("Accept", "application/json,*/*")
+                    .header("Accept-Language", "zh-CN,zh;q=0.9,en;q=0.8")
+                    .header("Origin", ctx.origin())
+                    .header("Referer", ctx.referer())
+                    .header("User-Agent", USER_AGENT)
+                    .header(HEADER_TOKEN, ctx.token())
+                    .header("S", sign)
+                    .header("T", String.valueOf(timestamp))
+                    .header("N", noncestr)
+                    .GET()
+                    .build();
+
+            HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
+            int status = response.statusCode();
+            if (status < 200 || status >= 300) {
+                log.warn("优惠券API HTTP {} bodyPrefix={}", status, abbreviate(response.body(), 400));
+                break;
+            }
+
+            JsonNode root = JSON.readTree(response.body());
+            int code = root.path("code").asInt(-1);
+            if (code != 0) {
+                log.warn("优惠券API返回错误 code={} msg={}", code, root.path("msg").asText(""));
+                break;
+            }
+
+            JsonNode listNode = root.path("data").path("list");
+            if (listNode.isMissingNode() || !listNode.isArray() || listNode.size() == 0) {
+                log.info("优惠券API返回空列表 page={}", page);
+                break;
+            }
+
+            for (JsonNode item : listNode) {
+                if (fetched >= totalNeeded) {
+                    break;
+                }
+                allItems.add(item);
+                fetched++;
+            }
+
+            // 如果返回的数据少于请求的limit，说明没有更多数据了
+            if (listNode.size() < limit) {
+                break;
+            }
+
+            page++;
+        }
+
+        if (allItems.isEmpty()) {
             return null;
         }
-        return response.body();
+
+        // 构建合并后的JSON
+        ObjectNode resultNode = JSON.createObjectNode();
+        resultNode.put("code", 0);
+        ObjectNode dataNode = resultNode.putObject("data");
+        ArrayNode listArray = dataNode.putArray("list");
+        for (JsonNode item : allItems) {
+            listArray.add(item);
+        }
+
+        return JSON.writeValueAsString(resultNode);
     }
 
     private int parseAndSaveCoupons(String couponJson, LbUser user, String tenantId) throws Exception {