From 4fd3f760a30adf230f85b3e82d9a72af407266e7 Mon Sep 17 00:00:00 2001
From: 张洋洋 <10611411+yang-yang-z@user.noreply.gitee.com>
Date: 星期四, 20 二月 2025 11:14:01 +0800
Subject: [PATCH] [add]服务发布
---
src/main/java/com/se/simu/utils/CsvToSQLiteUtils.java | 64 ++++++++++++++++++++++++++++++++
1 files changed, 64 insertions(+), 0 deletions(-)
diff --git a/src/main/java/com/se/simu/utils/CsvToSQLiteUtils.java b/src/main/java/com/se/simu/utils/CsvToSQLiteUtils.java
index 46d9e63..85b398f 100644
--- a/src/main/java/com/se/simu/utils/CsvToSQLiteUtils.java
+++ b/src/main/java/com/se/simu/utils/CsvToSQLiteUtils.java
@@ -157,6 +157,35 @@
}
}
+ /**
+ * 璇诲彇 CSV 淇濆瓨鏈湴
+ *
+ * @param array 鏁版嵁
+ * @param tableName 琛ㄥ悕绉�
+ */
+ public static void readCsvSaveLocal(JSONArray array, String tableName) {
+ // 1. 鍒涘缓SQLite鏁版嵁搴撹繛鎺�
+ try (Connection conn = DriverManager.getConnection("jdbc:sqlite:rainfall.db")) {
+ if (conn != null) {
+ // 2. 鍒涘缓琛紙濡傛灉涓嶅瓨鍦級
+ createTableIfNotExists(conn, tableName);
+ // 3. 璁剧疆SQLite杩炴帴鐨勫瓧绗︾紪鐮佷负UTF-8
+ try (Statement stmt = conn.createStatement()) {
+ // 璁剧疆SQLite缂栫爜涓篣TF-8
+ stmt.execute("PRAGMA encoding = 'UTF-8';");
+ }
+ // 4. 寮�濮嬩簨鍔�
+ conn.setAutoCommit(false);
+ // 5. 璇诲彇CSV鏂囦欢骞舵彃鍏ユ暟鎹�
+ readCsvAndInsertDatas(array, conn, tableName);
+ // 6. 鎻愪氦浜嬪姟
+ conn.commit();
+ System.out.println("鏁版嵁鎴愬姛鎻掑叆鍒癝QLite鏁版嵁搴擄紒");
+ }
+ } catch (SQLException e) {
+ System.err.println("SQLite杩炴帴澶辫触: " + e.getMessage());
+ }
+ }
/**
* 璇诲彇 CSV 淇濆瓨鏈湴
@@ -190,6 +219,41 @@
return array;
}
+ private static void readCsvAndInsertDatas(JSONArray array, Connection conn, String tableName) {
+
+ String insertDataSql = "INSERT INTO " + tableName + " (station_name, rainfall, longitude, latitude, datetime) VALUES (?, ?, ?, ?, ?);";
+ try (PreparedStatement pstmt = conn.prepareStatement(insertDataSql)) {
+ // 鎵归噺澶у皬
+ int batchSize = 1000;
+ int count = 0;
+ for (int i = 0; i < array.size(); i++) {
+ JSONObject object = array.getJSONObject(i);
+ // 鑾峰彇姣忎竴鍒楃殑鏁版嵁
+ String stationName = object.getString("stationName");
+ double rainfall = object.getDouble("rainfall");
+ double longitude = object.getDouble("longitude");
+ double latitude = object.getDouble("latitude");
+ String datetime = object.getString("datetime");
+ // 璁剧疆鎻掑叆鏁版嵁鐨勫弬鏁�
+ pstmt.setString(1, stationName);
+ pstmt.setDouble(2, rainfall);
+ pstmt.setDouble(3, longitude);
+ pstmt.setDouble(4, latitude);
+ pstmt.setString(5, datetime);
+ // 娣诲姞鍒版壒澶勭悊
+ pstmt.addBatch();
+ count++;
+ // 姣廱atchSize鏉℃暟鎹墽琛屼竴娆℃壒閲忔彃鍏�
+ if (count % batchSize == 0) {
+ pstmt.executeBatch();
+ }
+ }
+ // 鎵ц鍓╀綑鐨勬壒閲忔彃鍏�
+ pstmt.executeBatch();
+ } catch (SQLException e) {
+ System.err.println("鎵归噺鎻掑叆鏁版嵁鏃跺嚭閿�: " + e.getMessage());
+ }
+ }
private static JSONArray readCsvAndInsertDatas(String csvFilePath, Connection conn, String tableName) {
// 浣跨敤 Apache Commons CSV 璇诲彇CSV鏂囦欢
--
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