php ajax无刷新上传图片实例代码

AJAX 客户端页面代码： index.html
复制代码 代码如下:


Ajax file upload sample

 
// 上传函数 
function btn_send.onclick() { 
data = “” 
spliter = “——-7d8d733180846” 
datadata = data + spliter + “\r\n” 
datadata = data + “Content-Disposition: form-data; name=\”photofile\”; filename=\”C:\\a.txt\”\r\n” 
// datadata = data + “Content-Type: image/pjpeg” + vbCrLf 
datadata = data + “Content-Type: text/plain” + “\r\n” + “\r\n” 
text = “My name is Wilson Lin.” 
postLength = text.length + data.length + 2 + spliter.length + 4 
package = data + text + “\r\n” + spliter + “–\r\n” 

alert(package) 
// 把XML文档发送到Web服务器 
var xmlhttp = new ActiveXObject(“Microsoft.XMLHTTP”); 
xmlhttp.open(“POST”,”./upload.php”,false); 
xmlhttp.setRequestHeader(“Content-Type”, “multipart/form-data; boundary=—–7d8d733180846”); 
xmlhttp.setRequestHeader(“Content-Length”, postLength); 
xmlhttp.send(package); 
// 显示服务器返回的信息 
result.innerHTML=xmlhttp.ResponseText; 
}