DWR异常处理

dwr.xml
<convert converter="exception"
match="exception.BusinessException">
  <param name="include" value="errorCode" />
</convert>

BusinessException:
public BusinessException(String errorMessage) {
this.errorMessage = errorMessage;
}

public ErrorCode getErrorCode() {
return errorCode;
}

SubjectService.removeSubject(record,{

callback:function() {}
errorHandler:function(es,exception){
alert(exception.errorMessage);
}
----------------
打印出来的是unfined,请教DWR异常处理问题?


------解决方法--------------------------------------------------------
有exception.BusinessException("es",callback)么?