我有一个Java代码可以向SMPP提交长SMS，但是在执行过程中，我收到“ 长度必须小于或等于254。实际长度为270”错误。使用长字符串或任何阿拉伯字符时。
任何人都可以帮助我确定原因并建议我如何解决问题。
下面是我正在尝试的代码。
import java.io.IOException;
import java.util.Date;
import java.util.Random;
import org.jsmpp.InvalidResponseException;
import org.jsmpp.PDUException;
import org.jsmpp.bean.Alphabet;
import org.jsmpp.bean.BindType;
import org.jsmpp.bean.ESMClass;
import org.jsmpp.bean.GeneralDataCoding;
import org.jsmpp.bean.MessageClass;
import org.jsmpp.bean.NumberingPlanIndicator;
import org.jsmpp.bean.OptionalParameter;
import org.jsmpp.bean.OptionalParameters;
import org.jsmpp.bean.RegisteredDelivery;
import org.jsmpp.bean.SMSCDeliveryReceipt;
import org.jsmpp.bean.TypeOfNumber;
import org.jsmpp.extra.NegativeResponseException;
import org.jsmpp.extra.ResponseTimeoutException;
import org.jsmpp.session.BindParameter;
import org.jsmpp.session.SMPPSession;
import org.jsmpp.util.AbsoluteTimeFormatter;
import org.jsmpp.util.TimeFormatter;
public class SendLongSMSMessage
{
private static TimeFormatter timeFormatter = new AbsoluteTimeFormatter();
public String[] submitLongSMS(String MSISDN, String senderAddr, String message) throws Exception
{
SMPPSession session = getSession();
String[] msgId = null;
int splitSize = 135;
int totalSize = 140;
int totalSegments = 0;
RegisteredDelivery registeredDelivery = new RegisteredDelivery(SMSCDeliveryReceipt.DEFAULT);
GeneralDataCoding dataCoding = new GeneralDataCoding(false, false, MessageClass.CLASS1,
Alphabet.ALPHA_8_BIT);
ESMClass esmClass = new ESMClass();
if (message != null && message.length() > totalSize)
{
totalSegments = getTotalSegmentsForTextMessage(message);
}
Random random = new Random();
OptionalParameter sarMsgRefNum = OptionalParameters.newSarMsgRefNum((short) random.nextInt());
OptionalParameter sarTotalSegments = OptionalParameters.newSarTotalSegments(totalSegments);
String[] segmentData = splitIntoStringArray(message, splitSize, totalSegments);
msgId = new String[totalSegments];
for (int i = 0, seqNum = 0; i < totalSegments; i++)
{
seqNum = i + 1;
OptionalParameter sarSegmentSeqnum = OptionalParameters.newSarSegmentSeqnum(seqNum);
try
{ byte[] byteText = segmentData[i].getBytes("UTF-16BE");
msgId[i] = session.submitShortMessage("", TypeOfNumber.NATIONAL,
NumberingPlanIndicator.ISDN, "9999999999", TypeOfNumber.NATIONAL,
NumberingPlanIndicator.ISDN, MSISDN, esmClass, (byte) 0, (byte) 0, timeFormatter
.format(new Date()), null, registeredDelivery, (byte) 0, dataCoding, (byte) 0, byteText, sarMsgRefNum, sarSegmentSeqnum, sarTotalSegments);
System.out.println("Message id for segment " + seqNum + " out of totalsegment "
+ totalSegments + "is" + msgId[i]);
}
catch (PDUException e)
{
System.out.println("PDUException has occured" + e.getMessage());
}
catch (ResponseTimeoutException e)
{
System.out.println("ResponseTimeoutException has occured" + e.getMessage());
}
catch (InvalidResponseException e)
{
System.out.println("InvalidResponseException has occured" + e.getMessage());
}
catch (NegativeResponseException e)
{
System.out.println("NegativeResponseException has occured" + e.getMessage());
}
catch (IOException e)
{
System.out.println("IOException has occured" + e.getMessage());
}
}
session.unbindAndClose();
return msgId;
}
private SMPPSession getSession() throws Exception
{
return newSession();
}
private SMPPSession newSession() throws Exception
{
BindParameter bindParam = new BindParameter(BindType.BIND_TX, "<user_name>", "<pass_word>", "tdd",
TypeOfNumber.UNKNOWN, NumberingPlanIndicator.UNKNOWN, null);
return new SMPPSession("17.1.1.1", 6666, bindParam);
}
public int getTotalSegmentsForTextMessage(String message)
{
int splitPos = 135;
int totalsegments = 1;
if (message.length() > splitPos)
{
totalsegments = (message.length() / splitPos) + ((message.length() % splitPos > 0) ? 1 : 0);
}
return totalsegments;
}
public String[] splitIntoStringArray(String msg, int pos, int totalSegments)
{
String[] segmentData = new String[totalSegments];
if (totalSegments > 1)
{
int splitPos = pos;
int startIndex = 0;
segmentData[startIndex] = new String();
segmentData[startIndex] = msg.substring(startIndex, splitPos);
for (int i = 1; i < totalSegments; i++)
{
segmentData[i] = new String();
startIndex = splitPos;
if (msg.length() - startIndex <= pos)
{
segmentData[i] = msg.substring(startIndex, msg.length());
}
else
{
splitPos = startIndex + pos;
segmentData[i] = msg.substring(startIndex, splitPos);
}
}
}
return segmentData;
}
public static void main(String[] args) throws Exception
{
SendLongSMSMessage slSMS = new SendLongSMSMessage();
String message = "Tech Dive heralds the arrival of a community of Developers "
+ "who share, collaborate and exchange ideas, concepts, technical know-how. "
+ "This forum lets you take a deep dive in technical topics that are hot and happening as well as on legacy systems."
+ "The idea of the forum is to ensure collaboration amongst developers through exchange of ideas/concepts "
+ "so their technical skills are enhanced."
+ "We plan to bring in experienced professionals on board so content/blog written is authentic and precise."
+ "Come, join us and be a part of new way of collaboration!";
String MSISDN = "9500000000";
String senderAddr = "8500000000";
slSMS.submitLongSMS(MSISDN, senderAddr, message);
}
}
解决此类问题的最佳方法是使用SMPP官方文档：https://smpp.org/SMPP_v3_4_Issue1_2.pdf
要发送带有长消息的SubmitSm，您需要使用名为message_payload的optional_parameter而不是常用的short_message参数。
您也可以在文档中阅读此信息：
可以在sm_length字段中指定的最大消息长度是254个八位位组。如果ESME希望提交更长的信息如果长度超过254个八位字节，则必须将sm_length字段设置为NULL，并且message_payload可选参数必须填充消息长度值和用户数据。
要解决您的问题，您需要在每次发送消息时检查一次，其中有多少字节，如果大于254，则将message_payload添加为您的optional_parameter而不是short_message。
使用cloudhopper库，您可以这样操作：
if (length > 254) {
submitSm.setOptionalParameter(new Tlv(
SmppConstants.TAG_MESSAGE_PAYLOAD,
CharsetUtil.encode(messageBody, CharsetUtil.CHARSET_UCS_2),
"message_payload"));
} else {
submitSm.setShortMessage(CharsetUtil.encode(messageBody, CharsetUtil.CHARSET_UCS_2));
}