加了关键代码 ....&characterEncoding=utf-8" 还是乱码怎么办

import java.nio.charset.Charset;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import org.junit.Test;


public class JDBCConnect {

	@Test
	public void demo1() throws SQLException{
		try {
			Class.forName("com.mysql.jdbc.Driver");
			
			Connection conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/lin?useUnicode=true&characterEncoding=utf-8","root","root");
			String sql="select * from goods where price<3500";
			Statement statement=conn.createStatement();
			ResultSet rs=statement.executeQuery(sql);
			while(rs.next()){
				System.out.println(rs.getInt(1)+"     "+rs.getString(2)+"     "+rs.getFloat(3));
			}
			
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
}