strlen

  function strlen(str) {
      var len = 0;
      for (var i = 0; i < str.length; i++) {
          if (str.charCodeAt(i) > 255) len += 2; else len ++;
      }
      return len;
  }
  if(strlen(itemRemarks) >50 )
   {
    alert("备注不能超过50个字符，一个汉字占2个字符！")
    document.getElementById("gdbQcScoreitem.itemRemarks").focus();
    return ;
   }
  function checkNum(value) {
     return /^[0-9]+$/.test(value);
   }
  function checkForm(){
   var seqno = document.getElementById("gdbQcScoreitem.seqNo").value; 
   if(seqno !="" && !checkNum(seqno)){
    alert("序号只能为数字!");
    document.getElementById("gdbQcScoreitem.seqNo").focus();
    return;
   }

  <statement id="getTeacherInfoByNo" resultClass="int" parameterClass="teacherinfo">
    Select count(1)
     From es_teacher_info
     where school_key = #schoolkey#
       and teacher_no = #teacherno# and
    (-1 = #teacherkey# or teacher_key != #teacherkey#)
  </statement>

 

  int count = TeacherInfoService.getInstance().getTeacherInfoByNo(formbean.getTeacherinfo(), webUser.getSchoolKey1());

  TeacherInfo teacher = formbean.getTeacherinfo();

  ActionMessages message = new ActionMessages();
  System.out.println("count" + count);
  if (count > 0) {