如何实现判断radio是否选中

试过了不行啊！
<script language="javaScript">
function check()
  {
    for(var i=0;i<document.AssignedDisp.requestId.length;i++)
    {
        if (!(document.AssignedDisp.requestId[i].checked))
        {
           alert(document.AssignedDisp.requestId[i].value+":Ã»Ñ¡");
           return false;
        }
        return true;
}
</script>

你的程序是什么意思,第一次循环后，无论选没选都return了，后面的还做不做,
噢，不对，怎么看都像少了一个"}"

TO:dule_yu(独乐)
你的方法也不行啊，不知道为什么啊？？？？

更本没反应啊，不执行alert（）

你把我的代码拷贝到记事本里，然后保存为test.htm，注意扩展名，然后运行。我的IE4和IE5。5都行，你的IE5不行吗？如果再不行，建议重新安装IE

对了，你的方法是现在每个都要选中啊，不好，我只要有一个选中了就不再执行alert
还有我的radio的name是group_id"+groupId+" <input type=radio name=group_id"+groupId+" value="+userId+">";

你把那个判断语句改一下不就不执行alert()了吗？
radio的name要是一组的话，必须是相同的。
再有问题call 我：
010-68816215

net_lover(孟子E章)
有qq号么，告诉我，或在这里写出来啊，
单个的还行，但是多个合起来就不行了，

最近我不上QQ了，发的信箱：[email protected]

下面的代码不管你有多少个radio，都可以检查。<HTML>
<script language="javascript">
var ss=""
function clicked()
  {
  for(var i=0;i<document.mxh.elements.length;i++)
  {
  if((document.mxh.elements[i].type).toLowerCase()=="radio" && !(document.mxh.elements[i].checked))
  ss+=document.mxh.elements[i].value+":没选\n"

}
alert("您没有选的总数为：\n\n"+ss)
}
</script><form name=mxh>
<input type=radio name=radio value=a>a
<input type=radio name=radio value=b>b
<input type=radio name=radio value=c>c
<input type=radio name=radio value=d>d
<input type=radio name=radio value=e>e
<p>
<input>
<p>
<input type=radio name=radio1 value=aa>aa
<input type=radio name=radio1 value=bb>bb
<input type=radio name=radio1 value=cc>cc
<input type=radio name=radio1 value=dd>dd
<input type=radio name=radio1 value=ee>ee
<input type=button value="查询" onclick=clicked()>
</form></HTML>

好了，我现在把我的代码给你啊，现在是requestId可以了，主要是后面的groudid和group-id"+groupid+"都不行啊，其中groupid和requestid 都是一样的模式不知道怎么不行啊！

<form name=mxh>
<html>
<body>
<head>
<script language="javascript">
function clicked()
{
  var a=0,b=0,c=0;
  for(var i=0;i<document.mxh.requestId.length;i++)
  {
     if(document.mxh.requestId[i].checked)
      a++;
  }
   if(a==0)
   {
     alert("YOU must selelt one Item")
  }
  for(var j=0;j<document.mxh.groupid.length;j++)
  {
     if(document.mxh.groupid[j].checked)
      b++;
  }
   if(b==0)
   {
     alert("YOU must selelt one Item")
  }
  for(var k=0;k<document.mxh.group_id"+groupId+".length;k++)
  {
     if(document.mxh.group_id"+groupId+"[k].checked)
     c++;
  }
   if(c==0)
   {
     alert("YOU must selelt one Item")
  }}
</script>
</head>
<input type=radio name=requestId  value="+requestId+">
<input type=\"radio\" name=groupid  value="+groupId+">
<input type=radio name=group_id"+groupId+" value="+userId+">
</body>
</html>问题是第一个可以，第2个不行，第3个有语法错误，怎么办啊？？？

建议这么写：
<html>
<body>
<head>
<script language="javascript">
function clicked(){
  var a=0,b=0,c=0;
  for(var i=0;i<document.mxh.elements.length;i++)
  {
if(document.mxh.elements[i].checked && (document.mxh.elements[i].name=="requestId"))
      a++;
  }
  if(a==0)
  {
    alert("YOU must selelt one Item")
  }
  for(var j=0;j<document.mxh.elements.length;j++)
  {
    if(document.mxh.elements[j].checked && (document.mxh.elements[j].name=="groupId"))
      b++;
  }
  if(b==0)
  {
    alert("YOU must selelt one Item")
  }
  for(var k=0;k<document.mxh.elements.length;k++)
  {
    if(document.mxh.elements[k].checked && (document.mxh.elements[k].name=="group_id_groupId"))
    c++;
  }
  if(c==0)
  {
    alert("YOU must selelt one Item")
  }}
</script>
<form name=mxh>
<input type=radio name="requestId" value="+requestId+"><br><input type="radio" name="groupId" value="+groupId+"><br><input type="radio" name=group_id_groupId value="+userId+"><br>
<input type=button value="check it" onclick="clicked()">
</form>

<html>
<body>
<%@page import="java.io.*"%>
<%@ include file="taskHeader.jsp" %>
<head>
<title>assign task to group</title>
<script language="javascript">
function clicked()
{
  var a=0,b=0,c=0;
  for(var i=0;i<document.groupDisp.elements.length;i++)
  {
      if(document.groupDisp.elements[i].checked && (document.groupDisp.elements[i].value=="+requestId+"))
      a++;
  }
  if(a==0)
  {
    alert("YOU must selelt one Number")
  }
  for(var j=0;j<document.groupDisp.elements.length;j++)
  {
    if(document.groupDisp.elements[j].checked && (document.groupDisp.elements[j].value=="+groupId+"))
      b++;
  }
  if(b==0)
  {
    alert("YOU must selelt one Group Name!")
  }
  for(var k=0;k<document.groupDisp.elements.length;k++)
  {
    if(document.groupDisp.elements[k].checked && (document.groupDisp.elements[k].value=="+userId+"))
    c++;
  }
  if(c==0)
  {
    alert("YOU must selelt one User Name!")
  }
}
</script>
</head>
<%@ include file="taskHeader2.jsp" %>
<%
try {
con.connect();
java.sql.ResultSet myRs;
%><%--
check for the post method and save the assignment to database
--%>
<%
if(request.getParameter("submit")!=null){
   String requestId=request.getParameter("requestId");
   String groupId="";
   String transcriberId="";
   String supervisorId="";

   java.util.Enumeration e=request.getParameterNames();
   while(e.hasMoreElements()){
     String param=e.nextElement().toString();
     if(param.indexOf("groupid")>=0){
       groupId=request.getParameter("groupid");
       String tranStr="group_id"+groupId;
       boolean hasSuper=false;
       myRs=con.select("select userId from userGroup where groupId="+groupId);
       int tmpId=-1;
       while(myRs.next()){
         tmpId=myRs.getInt("userId");
         java.sql.Statement st1=con.con.createStatement();
         java.sql.ResultSet rs1=st1.executeQuery("select userId from users where sysGroupId=2 and userId="+tmpId);
         while(rs1.next()){
           hasSuper=true;
           supervisorId=rs1.getString("userId");
         }
       }

       if((transcriberId=request.getParameter(tranStr).toString())!=null){
          String sqlStr="";
   java.util.GregorianCalendar mycal=new java.util.GregorianCalendar();
   java.text.SimpleDateFormat formatter=new java.text.SimpleDateFormat("yyyy.MM.dd  hh:mm:ss");
   String dateStr=formatter.format(mycal.getTime());
          if(hasSuper){
            //if supervisorId=transcriberId means assign to just group,the supervisor assign it to transcriber later.
            if(Integer.valueOf(supervisorId).intValue()==Integer.valueOf(transcriberId).intValue()){
              sqlStr="update request set supervisorId="+supervisorId+",assignTime='"+dateStr+"' where requestId="+requestId;
            }else{
              sqlStr="update request set status=2,supervisorId="+supervisorId+",transcriberId="+transcriberId+",assignTime='"+dateStr+"' where requestId="+requestId;
            }
          }else{
            sqlStr="update request set status=2,transcriberId="+transcriberId+",assignTime='"+dateStr+"' where requestId="+requestId;
          }
         con.update(sqlStr);
       }//if
     }//if
   }//while
  }//if

%><%--
list the not assigned tasks and the group and transcriber and their existing tasks;
--%>
<%
for(int j=0;j<2;j++){
          out.println("<br>");
        }

        //get the url path from sysConfigure
        String urlPath="";
        myRs=con.select("select confValue from sysConfigure where confName=\'urlPath\'");
        while(myRs.next()){
          urlPath=myRs.getString("confValue");
        }

out.println("<form name=groupDisp method=post action=\"assignToGroup.jsp\">");
out.println("<center>");
out.println("<font size=4>");

//list the not assigned tasks:
out.println("<font color=darkblue size=5><B><I>Not assigned tasks</I></b></font>");
out.println("<table name=notAssigned border=1>");
int requestId;
        int clientId;
        int supervisorId;
        String requestTime="";
        String year="",month="",day="";
        int returnDate;
        int inputLang,outputLang;
        String subject="";
        int status,audioLen,docLen;
        String settle="";
        String clientName="";
out.println("<tr>");
out.println("<td>Number</td><td>Client Name</td><td>Request Time</td><td>Requested Turnaround Time</td><td>Language</td><td>Subject</td><td>Settled</td><td>Attachment</td>");
out.println("</tr>");


String sqlStr="select a.requestId requestId,a.clientId clientId,a.introduce,a.supervisorId supervisorId,";
sqlStr=sqlStr+"a.transcriberId transcriberId,a.requestTime requestTime,a.returnDate returnDate,";
sqlStr=sqlStr+"a.inputLang inputLang,a.outputLang outputLang,a.status status,a.audioLen audioLen,";
sqlStr=sqlStr+"a.docLen docLen,a.settle settle,b.userName clientName ";
sqlStr=sqlStr+" from request as a,users as b";
sqlStr=sqlStr+" where a.status=1 and a.clientId=b.userId and (supervisorId=0 or supervisorId is null) and parent<>-1";
myRs=con.select(sqlStr);
int tableCount=0;
while(myRs.next()){

  tableCount++;

  requestId=myRs.getInt("requestId");
  clientId=myRs.getInt("clientId");
  supervisorId=myRs.getInt("supervisorId");

  requestTime=myRs.getString("requestTime");
  year=requestTime.substring(0,4);
  month=requestTime.substring(4,6);
  day=requestTime.substring(6,8);
  String hour="",minute="";
  hour=requestTime.substring(8,10);
  minute=requestTime.substring(10,12);
  requestTime=year+"-"+month+"-"+day+" "+hour+":"+minute;

  returnDate=myRs.getInt("returnDate");
  inputLang=myRs.getInt("inputLang");
  //outputLang=myRs.getInt("outputLang");
  subject=myRs.getString("introduce");
  status=myRs.getInt("status");
  settle=myRs.getString("settle");
  clientName=myRs.getString("clientName");

  out.println("<tr>");
  out.println("<td width=60>");
  String tmpString="<input type=radio name=requestId  value="+requestId+">";
  out.println(tmpString);
  out.println(tableCount+"</td>");
  out.println("<td>"+clientName+"</td>");
  out.println("<td>"+requestTime+"</td>");
  out.println("<td>"+returnDate+"</td>");
  out.println("<td>"+util.getLanguage(inputLang)+"</td>");
  //out.println("<td>"+util.getLanguage(outputLang)+"</td>");
  out.println("<td>"+subject+"</td>");
  out.println("<td>"+settle+"</td>");

  out.println("<td>");
  out.println("<table name=table"+tableCount+" border=1>");
  //out.println("<tr><td>File Name</td><td>File Type</td></tr>");
  String fileName="",fileLocation="";
  java.sql.Statement stmt = con.con.createStatement();
  java.sql.ResultSet rest =stmt.executeQuery("select * from attachment where requestId="+requestId+" order by type");
  while (rest.next()) {
    fileName=rest.getString("fileName");
    fileLocation=rest.getString("fileLocation");
    out.println("<tr>");
    out.println("<td width=180>");
    out.println("<a href=\""+urlPath+fileLocation+"\">"+convertor.AsciiToChineseString(fileName)+"</a></td>");
    int fileType=rest.getInt("type");
    switch(fileType){
      case 1:
        out.println("<td width=180>Audio File</td>");
        break;
      case 2:
        out.println("<td width=180>Document for translation</td>");
        break;
      case 3:
        out.println("<td width=180>Glossary</td>");
        break;
     case 4:
        out.println("<td width=180>Transcript Format</td>");
        break;
     case 5:
        out.println("<td width=180>Hyperlink</td>");
        break;
     case 6:
        out.println("<td width=180>Transcript/Translated Doc</td>");
        break;
     case 7:
        out.println("<td width=180>Other attachments</td>");
        break;
    }
    out.println("</tr>");
   }//while(rest)
  out.println("</table>");//attachment table
  out.println("</td>");

  out.println("</tr>");
}
out.println("</table>");

for(int k=0;k<3;k++){
  out.println("<br>");
}
out.println("<b><I><font size=5><center>To Group:</center></font></I></b>");
out.println("<table name=transDisp border=1>");
out.println("<tr>");

int i=0;
String groupStr;
myRs=con.select("select distinct groupId from userGroup");
out.println("<td width=120>Group Name</td><td width=700>Stuff</td>");
out.println("</tr>");
while (myRs.next()) {
  i++;
  out.println("<tr><td width=120>");
  int groupId=myRs.getInt("groupId");
  String tmp="<input type=\"radio\" name=groupid  value="+groupId+">";
  out.println(tmp);
  java.sql.Statement st1 = con.con.createStatement();
  java.sql.ResultSet rs1 =st1.executeQuery("select groupName from groups where groupId=" + groupId);
  while (rs1.next()) {
    out.println(rs1.getString("groupName")+"</td>");
  }

  out.println("<td>");
  out.println("<table  border=1>");
  out.println("<tr>");
  out.println("<td width=200>User Name</td><td width=100>Role</td><td width=100>Status</td><td width=500>Existing Tasks</td>");
  out.println("</tr>");
  int count2=0;
  java.sql.Statement st2 = con.con.createStatement();
  java.sql.ResultSet rs2 =st2.executeQuery("select distinct userId from userGroup where groupId=" + groupId);

  while (rs2.next()) {
    int userId=rs2.getInt("userId");
    boolean bSuper=false;     java.sql.Statement st3 = con.con.createStatement();
    java.sql.ResultSet rs3 =st3.executeQuery("select userName,sysGroupId,AcctDisable from users where userId=" + userId+" and (sysGroupId=2 or sysGroupId=4) order by sysGroupId");
    while (rs3.next()) {
      out.println("<tr><td width=200>");
      String tmp2="<input type=radio name=group_id"+groupId+" value="+userId+">";
      out.println(tmp2);
      out.println(rs3.getString("userName")+"</td>");
      int sysGroupId=rs3.getInt("sysGroupId");
      switch(sysGroupId){
        case 2:
          out.println("<td width=100><font color=red><b>Supervisor</b></font></td>");
          bSuper=true;
          break;
        case 3:
          out.println("<td width=100>Client</td>");
          break;
        case 4:
          out.println("<td width=100> Transcriber</td>");
          break;
        default:
          out.println("<td width=100>Unknown</td>");
      }
      int acctDisable=rs3.getInt("AcctDisable");
      switch(acctDisable){
        case 0:
                out.println("<td width=100>Active</td>");
                break;
        case 1:
                out.println("<td width=100>Disable for login failing</td>");
                break;
        case 2:
                out.println("<td width=100>Disable for not paying</td>");
                break;
        default:
                out.println("<td width=100>Disble</td>");
      }
      //LIST THE TASKS OF THE TRANSCRIBER THAT HAVE BE ASSIGNED TO HIM
      out.println("<td width=500>");
      int tasks=0;
      int taskId=0;
      out.println("<table name=transTask"+userId+">");
      java.sql.Statement st4 = con.con.createStatement();
      java.sql.ResultSet rs4;
      //java.sql.ResultSet rs4 =st4.executeQuery("select requestId from request where transcriberId=" + userId+" or supervisorId="+userId);
      if(bSuper){
        rs4 =st4.executeQuery("select requestId from request where supervisorId="+userId+" and transcriberId is null");
      }else{
        rs4 =st4.executeQuery("select requestId from request where transcriberId=" + userId);
      }
      while (rs4.next()) {
        tasks++;
        String taskName="";
        taskId=rs4.getInt("requestId");
        java.sql.Statement st5 = con.con.createStatement();
        java.sql.ResultSet rs5 =st5.executeQuery("select fileName,fileLocation from attachment where requestId="+taskId+" and (type<=3)");
        while (rs5.next()) {
          taskName=taskName+"  "+"<a href="+urlPath+rs5.getString("fileLocation")+">"+convertor.AsciiToChineseString(rs5.getString("fileName"))+"</a>";
        }
        out.println("<tr><td width=300>");
        out.println(tasks+":"+taskName);
        out.println("</td></tr>");
      }
      out.println("</table>");
      out.println("</td>");
      //end of list

      out.println("</tr>");
    }//while(rs3)
  }//while(rs2)
  out.println("</table>");
  out.println("</td>");

}

out.println("</table>");

out.println("<p align=center><input name=submit type=submit value=Assign onclick=\"javascript:return clicked()\">     <input name=reset type=reset value=Reset></p>");
out.println("</center>");
out.println("</form>");
con.closeConnection();


} catch (java.sql.SQLException e1) {
while (e1 != null) {
out.println("The captured SQL exception is：");
out.println("SQLState:  " + e1.getSQLState());
out.println("Message:   " + e1.getMessage());
out.println("Vendor:    " + e1.getErrorCode());
e1 = e1.getNextException();
}
}

%>
<%@ include file="taskTailer.jsp" %>
</body>
</html>

现在是每次都执行alert
不管选与不选啊！

特别是最后那种啊，都没法得到最后那个参数啊？？？
有param 很request都不行啊！
怎么办啊！！！？？？？

我没时间看程序，
我只告诉你原理，如果没有选中的话，那个radio的值为null,
你可以通过这个来判断。

jsp是服务器端执行的代码，javascript是客户端执行的代码。
在服务器端你可以任何有意义的操作，包括数据库操作，然后，把你的代码输出到客户端，可以包含javascript函数的定义，form的分布个数。你不要把2者混为一谈，你能把你jsp输出的html代码拿出来吗？要是HTML代码不合法的话，那那就是你JSP输出的我问题了

我的jsp没有出错啊，只是你说的关系到数据库的操作是真的，我当时也考虑到了，关键是怎么在javascript里得到radio的各个参数啊，实在是很难啊，没什么办法啊！
谢谢各位拉，其实如果谁要改的话，只要主要，
form 的name//
radio的name//
就可以了，主要现在是解决这些问题了！

form的name随便就、起个合法的就行了
radio的name每组是一个名字，比如，性别的男女是一组，只能是一个名字，因为是单选的，你不能同时选男又选女。至于如何生成，根据程序需要来定，你不要把把每个radio都起不同的名字，那样失去了单选的意义。这里的name和调用时的必须一致。nane当然可以用程序输出，
比如：
out.println("<input type=radio name=");
out.println var
out.println(">")

net-lover 你是不是隐身了？
见不到你啊！！

调试易

如何实现判断radio是否选中

解决方案 »