ajax 异步提交form表单

function getFileChange(value){
	var formData = new FormData($("#form0")[0]);
	$.ajax({
		url:'<?php echo $upload_excel;?>',type:'POST',dataType:'text',data:formData,//async:false,processData: false,contentType: false,success: function(data){
			if(data == 'success'){
				alert('导入数据成功！');
				//window.location = '<?php echo $indexUrl;?>';
			}
			else{
				alert(data);
			}
			window.location = '<?php echo $indexUrl;?>';
		},error: function(json){
			alert('网络错误，请重新上传文件');
		}
	});
}