1、将jre文件夹复制到你本机所在的JDK下覆盖掉全部jre文件夹
2、将lib文件夹复制到你项目所在的lib，添加对应lib

import org.smslib.IOutboundMessageNotification;
import org.smslib.Library;
import org.smslib.MessageEncodings;
import org.smslib.MessageProtocols;
import org.smslib.OutboundMessage;
import org.smslib.Service;
import org.smslib.modem.SerialModemGateway;
import java.util.List;

public class SendSms {
    public SendSms() {
    }

    public void sendSMS(String[] phoneNumber) throws Exception {
        Service srv;
        OutboundMessage msg;
        OutboundNotification outboundNotification = new OutboundNotification();
        srv = new Service();
        SerialModemGateway gateway = new SerialModemGateway("modem.com1",
                "COM1", 9600, null, null);
        gateway.setInbound(true);
        gateway.setOutbound(true);
        gateway.setSimPin("0000");
        gateway.setOutboundNotification(outboundNotification);
        gateway.setProtocol(MessageProtocols.PDU);
        srv.addGateway(gateway);
        try {
            srv.startService();
            for (int i = 0; i < phoneNumber.length; i++) {
                msg = new OutboundMessage(phoneNumber[i], "您有会议待处理,请登陆查看！");
                msg.setEncoding(MessageEncodings.ENCUCS2);
                srv.sendMessage(msg);
            }
        } finally {
            srv.stopService();
        }
    }
    public class OutboundNotification implements IOutboundMessageNotification {
        public void process(String gatewayId, OutboundMessage msg) {
            System.out.println("Outbound handler called from Gateway: " +
                               gatewayId);
            System.out.println(msg);
        }
    }

    public static void main(String args[]) {
        SendSms app = new SendSms();
        try {
            app.doIt();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}