Java如何创建可滚动的结果集？
package org.nhooo.example.jdbc;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class ScrollableResultSetExample {
private static final String URL = "jdbc:mysql://localhost/nhooo";
private static final String USERNAME = "root";
private static final String PASSWORD = "";
public static void main(String[] args) {
try (Connection connection =
DriverManager.getConnection(URL, USERNAME, PASSWORD)) {
//从JDBC2.0（JDK1.2）开始，可滚动的ResultSet是
//引入到java.sqlAPI系列。使用这个
//ResultSet使我们能够在以下位置导航结果集
//前进或后退方式。
//
//要启用可滚动的ResultSet，我们需要创建
//通过定义ResultSet类型的语句对象
//（ResultSet.TYPE_SCROLL_SENSITIVE，
//ResultSet.TYPE_SCROLL_INSENSITIVE）。如果您定义
//ResultSet类型设置为ResultSet.TYPE_FORWARD_ONLY，则您
//获取常规的ResultSet，您可以在其中前进
//仅与JDBC1.0中一样
Statement statement = connection.createStatement(
ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
//此结果集是可滚动的结果集
String query = "SELECT * FROM products";
ResultSet resultSet = statement.executeQuery(query);
} catch (SQLException e) {
e.printStackTrace();
}
}
}Maven依赖
<!-- https://search.maven.org/remotecontent?filepath=mysql/mysql-connector-java/8.0.17/mysql-connector-java-8.0.17.jar -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.17</version>
</dependency>