continue.jsp

java web 开发,Java Xml 编程指南书籍源码

<!-- This is goon.jsp, included by several jsp files.
   the only jsp code places  the msgtext String into a
   textarea, as the starting point for a message.
  we use javascript to check parameters in an onsubmit.

  logout needs no other data;
  dodb needs a dbOperation (possibly with Parameter1, ..)
  send needs smtphost,retaddr,toaddr,subject,msgtext;
   the first two were set in the initial html page.
-->
<script>
  var argCount={LOOKUPFROMWHEN:1,LOOKUPFROMWHO:1,ADD:3,DELETE:1};
  function onsub(){
    var theForm=window.document.theForm;
    var theCmd=theForm.bbcmd.value;
    if(theCmd=="logout")return true;
    if(theCmd=="send") return sendOk(theForm);
    return doDBOk(theForm);
  }
  function sendOk(theForm){
    if(""==theForm.toaddr.value)
     {alert("must fill in toaddress");return false;}
    if(""==theForm.subject.value)
     {alert("must fill in subject");return false;}
    return true;
  }

  function doDBOk(){
    var theOp=theForm.dbOperation.value;
    var N=argCount[theOp]; if(!N)N=0;
    theForm.ParameterMax.value=N;
    for(var i=1;i<=N;i++)
      if(""==theForm["Parameter"+i].value)
        {alert("must fill in Parameter"+i);return false;}
    if(theOp=="BIRTHDAYLIST") // param passed as "when"
      theForm.when.value=theForm.Parameter1.value;
    return true;
  }
</script>
<form name="theForm" action="birthday.jsp" 
      method="post" onsubmit="return onsub()">
<input type=hidden name=ParameterMax value="0">
<input type=hidden name=when>

To Do:
<select name=bbcmd size=1>
<option value="dodb" selected>doDB Op</option>
<option value="send">send message</option>
<option value="logout">logout</option>
</select>
Database Op:
<select name=dbOperation size=1>
<option value="LOOKUPALL" selected>show the table</option>
<option value="BIRTHDAYLIST">birthday list for yyyy-MM-dd date</option>
<option value="LOOKUPFROMWHEN">look up a specific date</option>
<option value="LOOKUPFROMWHO">look up a specific person</option>
<option value="ADD">add a (who,when,addr) entry in dbase</option>
<option value="DELETE">delete a person (by name)</option>
</select>
<br><input type=submit>
<br>
Parameters for DB Queries:
<input type=text name=Parameter1 size=10 value="">
<input type=text name=Parameter2 size=10 value="">
<input type=text name=Parameter3 size=10 value="">
<br>
Or you can send mail. <br>
Send to: <input type=text name=toaddr value="" size=20>
about: <input type=text name=subject value="" size=20>
<br>
<textarea name=msgtext rows=10 cols=50>
<%= msgtext %>
</textarea>
</form>