核心提示：ajax表单查询与写入代码实例!DOCTYPE htmlhtml lang=enheadmeta charset=UTF-8titleDocument/titlestyle*{font-size: 3...
ajax表单查询与写入代码实例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
*{
font-size: 30px;
line-height: 1.8;
}
</style>
</head>
<body>
<h1>员工查询</h1>
<label>请输入员工编号</label>
<input type="text" id="keyword">
<button id="search">查询</button>
<p id="searchResult"></p>
<h1>员工创建</h1>
<label>请输入员工姓名</label>
<input type="text" id="staffName"><br>
<label>请输入员工编号</label>
<input type="text" id="staffNumber"><br>
<label>请输入员工性别</label>
<select id="staffSex">
<option>男</option>
<option>女</option>
</select><br>
<label>请输入员工编号</label>
<input type="text" id="staffJob">
<button id="save">保存</button>
<p id="createResult"></p>
<script>
document.getElementById('search').onclick=function(){
var request = new XMLHttpRequest();
request.open("get","server.php?number="+document.getElementById("keyword").value);
request.send();
request.onreadystatechange = function() {
if(request.readyState===4) {
if(request.status===200){
document.getElementById("searchResult").innerHTML = request.responseText;
}else {
alert("发生错误:"+request.statue);
}
}
}
}
document.getElementById("save").onclick = function() {
var request = new XMLHttpRequest();
request.open("POST", "server.php");
var data = "name=" + document.getElementById("staffName").value
+ "&number=" + document.getElementById("staffNumber").value
+ "&sex=" + document.getElementById("staffSex").value
+ "&job=" + document.getElementById("staffJob").value;
request.setRequestHeader("Content-type","application/x-www-form-urlencoded");
request.send(data);
request.onreadystatechange = function() {
if (request.readyState===4) {
if (request.status===200) {
document.getElementById("createResult").innerHTML = request.responseText;
} else {
alert("发生错误：" + request.status);
}
}
}
}
</script>
</body>
</html>
json
request.onreadystatechange = function() {
if (request.readyState===4) {
if (request.status===200) {
var data = JSON.parse(request.responseText);
if (data.success) {
document.getElementById("searchResult").innerHTML = data.msg;
} else {
document.getElementById("searchResult").innerHTML = "出现错误：" + data.msg;
}
} else {
alert("发生错误：" + request.status);
}
}
}
