139 lines
4.2 KiB
Plaintext
139 lines
4.2 KiB
Plaintext
package Sdf1_login;
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import java.io.File;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.sql.Statement;
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public class QuestStorage {
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private Connection conn;
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public QuestStorage(File dataFolder) {
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try {
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Class.forName("org.sqlite.JDBC");
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File dbFile = new File(
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dataFolder,
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"quest_data.db");
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conn = DriverManager.getConnection(
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"jdbc:sqlite:"
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+ dbFile.getPath());
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initTable();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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private void initTable()
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throws SQLException {
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Statement stmt =
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conn.createStatement();
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stmt.executeUpdate(
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"CREATE TABLE IF NOT EXISTS "
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+ "quest_conditions ("
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+ "player TEXT NOT NULL, "
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+ "condition_key TEXT NOT NULL, "
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+ "value TEXT DEFAULT '1', "
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+ "timestamp INTEGER, "
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+ "PRIMARY KEY "
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+ "(player, condition_key))");
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stmt.close();
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}
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/**
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* 标记条件已完成（value = "1"）
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*/
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public void setCondition(
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String player,
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String condition) {
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setConditionRaw(
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player, condition, "1");
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}
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/**
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* 写入任意值（计数器等）
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*/
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public void setConditionRaw(
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String player,
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String condition,
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String value) {
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try {
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PreparedStatement ps =
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conn.prepareStatement(
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"INSERT OR REPLACE "
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+ "INTO "
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+ "quest_conditions "
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+ "(player, "
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+ "condition_key, "
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+ "value, timestamp) "
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+ "VALUES "
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+ "(?, ?, ?, ?)");
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ps.setString(1, player);
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ps.setString(2, condition);
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ps.setString(3, value);
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ps.setLong(4,
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System.currentTimeMillis());
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ps.executeUpdate();
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ps.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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/**
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* 查询条件值
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*/
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public Object getCondition(
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String player,
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String condition) {
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try {
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PreparedStatement ps =
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conn.prepareStatement(
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"SELECT value FROM "
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+ "quest_conditions "
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+ "WHERE player = ? "
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+ "AND "
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+ "condition_key = ?");
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ps.setString(1, player);
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ps.setString(2, condition);
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ResultSet rs =
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ps.executeQuery();
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if (rs.next()) {
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String val =
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rs.getString("value");
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rs.close();
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ps.close();
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// 尝试解析为数字
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try {
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if (val.contains(".")) {
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return Double.parseDouble(
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val);
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}
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return Long.parseLong(val);
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} catch (NumberFormatException e) {
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return val;
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}
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}
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rs.close();
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ps.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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return null;
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}
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public void close() {
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try {
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if (conn != null
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&& !conn.isClosed()) {
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conn.close();
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}
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}
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