JDBC中的executeBatch()方法用于批量执行SQL语句。下面是一个示例代码演示如何使用executeBatch()方法：
```java
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
public class BatchExecutionExample {
public static void main(String[] args) {
Connection connection = null;
PreparedStatement preparedStatement = null;
try {
// 创建数据库连接
connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydatabase", "root", "password");
// 创建预编译的SQL语句
String sql = "INSERT INTO my_table (column1, column2) VALUES (?, ?)";
preparedStatement = connection.prepareStatement(sql);
// 设置批量执行的参数
preparedStatement.setString(1, "value1");
preparedStatement.setString(2, "value2");
preparedStatement.addBatch();
preparedStatement.setString(1, "value3");
preparedStatement.setString(2, "value4");
preparedStatement.addBatch();
// 执行批量操作
int[] result = preparedStatement.executeBatch();
// 输出批量操作结果
for (int i : result) {
System.out.println("Number of rows affected: " + i);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
try {
if (preparedStatement != null) {
preparedStatement.close();
}
if (connection != null) {
connection.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
```
在这个示例中，我们首先创建数据库连接，然后创建一个预编译的SQL语句。接着设置批量执行的参数，调用addBatch()方法将每一组参数添加到批处理中。最后调用executeBatch()方法执行批处理操作，并获取执行结果。