通过Canvas及File API缩放并上传图片完整示例

int len = data.length;
int len2 = imageData.length();
if(null == imageName || imageName.length() < 1){
imageName = System.currentTimeMillis()+”.png”;
}
saveImageToDisk(data,imageName);
//
success = 1;
message = “上传成功,参数长度:”+len2+”字符，解析文件大小:”+len+”字节”;
}
// 后台打印
System.out.println(“message=”+message);
%>
{
“message”: “<%=message %>”,
“success”: <%=success %>
}