前台JS读取本地文件内容,兼容IE7、8、9、10 FF Chrome等各种版本,纠结了好长时间,终于找到方法,希望能帮到你,代码如下。直接复制保存为html运行看效果。

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<script>
function upload(input) {
	//支持chrome IE10
	if (window.FileReader) {
		var file = input.files[0];
		filename = file.name.split(".")[0];
		var reader = new FileReader();
		reader.onload = function() {
			console.log(this.result)
			alert(this.result);
		}
		reader.readAsText(file);
	} 
	//支持IE 7 8 9 10
	else if (typeof window.ActiveXObject != 'undefined'){
		var xmlDoc; 
		xmlDoc = new ActiveXObject("Microsoft.XMLDOM"); 
		xmlDoc.async = false; 
		xmlDoc.load(input.value); 
		alert(xmlDoc.xml); 
	} 
	//支持FF
	else if (document.implementation && document.implementation.createDocument) { 
		var xmlDoc; 
		xmlDoc = document.implementation.createDocument("", "", null); 
		xmlDoc.async = false; 
		xmlDoc.load(input.value); 
		alert(xmlDoc.xml);
	} else { 
		alert('error'); 
	} 
}
</script>
<title>file upload</title>
</head>
<body>
	<input type="file" onchange="upload(this)" />
</body>
</html>

参考如下:

http://blog.csdn.net/lejuo/article/details/11528243