一个JavaScript防止表单重复提交的实例

时间：2021-05-02

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>防止重复表单提交</title> <style> #refresh{ display: none; width:200px; height:20px; background-color: #ff0; } </style> <script> var inprocess = false; window.onload = function(){ document.forms["picker"].onsubmit = validateSubmit; document.getElementById("refresh").onclick = startOver; } function validateSubmit () { // 防止重复的表单提交 if (inprocess) return; inprocess = true; console.log(inprocess); document.getElementById("submitbutton").disabled = true; document.getElementById("refresh").style.display = "block"; document.getElementById("message").innerHTML = "<p>正在processing，稍等</p>"; return false; } function startOver(){ inprocess = false; document.getElementById("submitbutton").disabled = false; document.getElementById("message").innerHTML = ""; document.getElementById("refresh").style.display = "none"; } </script> </head> <body> <form id="picker" method="post" action=""> group1:<input type="radio" name="group1" value="one" /> group2:<input type="radio" name="group1" value="two" /> group3:<input type="radio" name="group1" value="three" /><br /><br /> Input 1: <input type="text" id="intext" /> Input 2: <input type="text" id="intext2" /> Input 3: <input type="text" id="intext3" /> <input type="submit" id="submitbutton" value="send form" /> </form> <div id="refresh"> <p>单击我</p> </div> <div id="message"></div> </body> </html>

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