package jdbc;
/*
* 动态查询
*/
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
public class Demo1 {
public static void main(String[] args) throws Exception {
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/usta", "root", "root");
String sql = "select * from student where id = ?";
PreparedStatement ps = con.prepareStatement(sql);
ps.setString(1, "3");
ResultSet rs = ps.executeQuery();
while(rs.next()) {
System.out.println(rs.getInt(1)+" "+rs.getString(2));
}
}
}
使用JDBC实现动态查询
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转载自blog.csdn.net/progammer10086/article/details/81198811
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