增加对下载数据的总数目上限的判断

search-console-b2b/src/main/java/com/uas/search/console/b2b/service/impl/IndexServiceImpl.java

@@ -290,7 +290,7 @@ public class IndexServiceImpl implements IndexService {
 		int fileIndex = 1;
 		if (startFileIndex != null) {
 			if (startFileIndex < 1) {
-				throw new SearchException("startFileIndex需大于1");
+				throw new SearchException("startFileIndex不小于1");
 			} else {
 				fileIndex = startFileIndex;
 			}
@@ -308,6 +308,10 @@ public class IndexServiceImpl implements IndexService {
 		Page<T> pageResult = dao.findAll(pageInfo);
 
 		// 数据库中数据的总数目
+		if (pageResult.getTotalElements() < (fileIndex - 1) * SINGLE_FILE_MAX_SIZE) {
+			throw new SearchException("startFileIndex不超过"
+					+ ((int) Math.ceil(pageResult.getTotalElements() / (1.0 * SINGLE_FILE_MAX_SIZE))));
+		}
 		long totalElements = pageResult.getTotalElements() - (fileIndex - 1) * SINGLE_FILE_MAX_SIZE;
 		logger.info("发现数据：" + totalElements + "条");
 		// 已翻页的数据数目