查询
直接扔代码。
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
* JdbcDemo
*/
public class JdbcDemo {
public static void main(String[] args) throws Exception {
Class.forName("com.mysql.jdbc.Driver").newInstance();
try (Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3307/taotao_db", "taotao",
"hiwwt_123")) {
PreparedStatement stmt = conn.prepareStatement("select id from user_accounts");
ResultSet resultSet = stmt.executeQuery();
while (resultSet.next()) {
System.out.println("got id=" + resultSet.getInt("id"));
}
} catch (SQLException ex) {
System.out.println("SQLException: " + ex.getMessage());
}
}
}
