initial commit: lottery 项目集（三工程统一管理）

- apps/lotteryServer, lotteryCapture, lotteryOpen 三个业务工程 - 忽略 archive/, tools/, infra/data/ 大目录与敏感配置文件 - 移除 lotteryServer 原嵌套 git，并入顶层统一管理
2026-09-17 19:03:32 +08:00
commit 3fc4dcc777
2251 changed files with 459578 additions and 0 deletions
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+package javautils.array;
+
+import java.util.List;
+
+public class ArrayUtils {
+	
+	/**
+	 * 针对数据库in
+	 * @param ids
+	 * @return
+	 */
+	public static String transInIds(int[] ids) {
+		StringBuffer sb = new StringBuffer();
+		for (int i = 0, j = ids.length; i < j; i++) {
+			sb.append(ids[i]);
+			if(i < j - 1) {
+				sb.append(",");
+			}
+		}
+		return sb.toString();
+	}
+	
+	public static String transInIds(Integer[] ids) {
+		StringBuffer sb = new StringBuffer();
+		for (int i = 0, j = ids.length; i < j; i++) {
+			sb.append(ids[i].intValue());
+			if(i < j - 1) {
+				sb.append(",");
+			}
+		}
+		return sb.toString();
+	}
+	
+	/**
+	 * 针对数据库in
+	 * @param ids
+	 * @return
+	 */
+	public static String transInIds(List<Integer> ids) {
+		StringBuffer sb = new StringBuffer();
+		for (int i = 0, j = ids.size(); i < j; i++) {
+			sb.append(ids.get(i).intValue());
+			if(i < j - 1) {
+				sb.append(",");
+			}
+		}
+		return sb.toString();
+	}
+	
+	/**
+	 * 存进数据库
+	 * @param ids
+	 * @return
+	 */
+	public static String transInsertIds(int[] ids) {
+		StringBuffer sb = new StringBuffer();
+		for (int i = 0, j = ids.length; i < j; i++) {
+			sb.append("[" + ids[i] + "]");
+			if(i < j - 1) {
+				sb.append(",");
+			}
+		}
+		return sb.toString();
+	}
+	
+	/**
+	 * 获取id的时候，解析成id数组
+	 * @param ids
+	 * @return
+	 */
+	public static int[] transGetIds(String ids) {
+		String[] tmp = ids.replaceAll("\\[|\\]", "").split(",");
+		int[] arr = new int[tmp.length];
+		for (int i = 0; i < arr.length; i++) {
+			arr[i] = Integer.parseInt(tmp[i]);
+		}
+		return arr;
+	}
+	
+	/**
+	 * 转换成字符串
+	 * @param list
+	 * @return
+	 */
+	public static String toString(List<Integer> list) {
+		StringBuffer sb = new StringBuffer();
+		for (int i = 0, j = list.size(); i < j; i++) {
+			sb.append(list.get(i));
+			if(i < j - 1) {
+				sb.append(",");
+			}
+		}
+		return sb.toString();
+	}
+}