如何在java中运行dql搜索查询？

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

String url = "jdbc:mysql://localhost:3306/database_name";
String username = "your_username";
String password = "your_password";

try {
    Connection connection = DriverManager.getConnection(url, username, password);
    // 连接成功后执行查询操作
} catch (SQLException e) {
    e.printStackTrace();
}

try {
    Statement statement = connection.createStatement();
    String query = "SELECT * FROM table_name WHERE condition";
    ResultSet resultSet = statement.executeQuery(query);
    // 处理查询结果
} catch (SQLException e) {
    e.printStackTrace();
}

try {
    while (resultSet.next()) {
        // 从结果集中获取数据
        String column1 = resultSet.getString("column1");
        int column2 = resultSet.getInt("column2");
        // 其他列的获取方式类似

        // 处理数据
        // ...
    }
} catch (SQLException e) {
    e.printStackTrace();
}