修改为linkmap，计算last_page

src/main/java/cn/chjyj/szwh/service/impl/GoodsServiceImpl.java

@@ -168,7 +168,7 @@ public class GoodsServiceImpl implements GoodsService {
 
     @Override
     public Map<String, Object> getGoodsByMap(Map gmap, int page, int limit) {
-        Map retmap = new HashMap();
+        Map retmap = new LinkedHashMap();
         //分页
         int start = page > 1 ? (page - 1) * limit : 0;
         int end = page * limit;
@@ -243,7 +243,7 @@ public class GoodsServiceImpl implements GoodsService {
         retmap.put("start", start + 1); // start 默认为0
         retmap.put("end", end);
         retmap.put("curr_page", page);
-        retmap.put("per_page", limit);
+        retmap.put("last_page", Math.ceil(total/limit));
 
 
         return retmap;