html form when filling conditions bomb box

method one:

jsp in:

<c: IF the Test = "$ {param.message == '1'}">
　　<Script>
　　　　Alert ( '! donations success, thank you for your support and wish you a healthy and happy');
　　</ Script>
</ c: if>

<C: = IF Test "$ {param.message == '0'}">
　　<Script>
　　　　Alert ( 'system failure, the operation fails, add again!');
　　　　the window.location = 'addView.jsp';
　　< / Script>
</ C: IF>

in action:

     IF (OK) { 
         Response.sendRedirect ( "Message showLoveInHeartWeb. 1 =?"); // equal success. 1 
     } the else { 
            ; Response.sendRedirect // 0 for failure ( "Message showLoveInHeartWeb = 0?") 
    } 

Method two: 

JSP in :

<script>
    function check() {
        var formname = document.form1;
        if (formname.lname.value != "") {
            alert("添加成功");
            return true;
        }
        if (formname.lname.value == "") {
            alert("姓名不能为空！");
            formname.lname.focus();
            return false;
        }
    }
</script>

<form action="addLoveInHeartWeb" method="post" onSubmit="return check(this)" name="form1">

    <table border="1">
           <tr><td><input type="text" name="lname"></td></tr>
　　　　　　　<tr><td><input type="submit" value="提交"></td></tr>
    </table>

</form>

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