下载最新的 Sqlite Jdbc 驱动程序jar文件,并添加到Java工程的class路径下;
二、使用以 sqlite Jdbc 驱动版本为 sqlitejdbc-v56.jar 为例
SqliteHelper.java 类
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* sqlite帮助类,直接创建该类示例,并调用相应的借口即可对sqlite数据库进行操作
*
* 本类基于 sqlite jdbc v56
*
* @author haoqipeng
*/
public class SqliteHelper {
final static Logger logger = LoggerFactory.getLogger(SqliteHelper.class);
private Connection connection;
private Statement statement;
private ResultSet resultSet;
private String dbFilePath;
/**
* 构造函数
* @param dbFilePath sqlite db 文件路径
* @throws ClassNotFoundException
* @throws SQLException
*/
public SqliteHelper(String dbFilePath) throws ClassNotFoundException, SQLException {
this.dbFilePath = dbFilePath;
connection = getConnection(dbFilePath);
}
/**
* 获取数据库连接
* @param dbFilePath db文件路径
* @return 数据库连接
* @throws ClassNotFoundException
* @throws SQLException
*/
public Connection getConnection(String dbFilePath) throws ClassNotFoundException, SQLException {
Connection conn = null;
Class.forName("org.sqlite.JDBC");
conn = DriverManager.getConnection("jdbc:sqlite:" + dbFilePath);
return conn;
}
/**
* 执行sql查询
* @param sql sql select 语句
* @param rse 结果集处理类对象
* @return 查询结果
* @throws SQLException
* @throws ClassNotFoundException
*/
public <T> T executeQuery(String sql, ResultSetExtractor<T> rse) throws SQLException, ClassNotFoundException {
try {
resultSet = getStatement().executeQuery(sql);
T rs = rse.extractData(resultSet);
return rs;
} finally {
destroyed();
}
}
/**
* 执行select查询,返回结果列表
*
* @param sql sql select 语句
* @param rm 结果集的行数据处理类对象
* @return
* @throws SQLException
* @throws ClassNotFoundException
*/
public <T> List<T> executeQuery(String sql, RowMapper<T> rm) throws SQLException, ClassNotFoundException {
List<T> rsList = new ArrayList<T>();
try {
resultSet = getStatement().executeQuery(sql);
while (resultSet.next()) {
rsList.add(rm.mapRow(resultSet, resultSet.getRow()));
}
} finally {
destroyed();
}
return rsList;
}
/**
* 执行数据库更新sql语句
* @param sql
* @return 更新行数
* @throws SQLException
* @throws ClassNotFoundException
*/
public int executeUpdate(String sql) throws SQLException, ClassNotFoundException {
try {
int c = getStatement().executeUpdate(sql);
return c;
} finally {
destroyed();
}
}