我在向服务器发送 base64 图像字符串(嵌入在 json 对象中)时遇到问题。
这是JS代码:
var sMimeType;
var id_g;
var tipo_g;
var lang_g;
function fileLoaded(frEvnt){
var sFBody = frEvnt.target.result;
var sBodyBase64 = btoa(sFBody);
var myobj = {my_id: id_g, my_tipo: tipo_g, my_lang:lang_g, img_mime_type: sMimeType, img_base64 :sBodyBase64};
//$("#error").html(JSON.stringify(myobj));
$.ajax({
url: "up_img.php",
data: JSON.stringify(myobj),
type: 'POST',
success:function(a) {/*window.location = tipo_g+".php?l="+lang_g*/alert(a);},
error:function() {$("#error").html("error")}
});
}
function Upload(id,tipo){
lang = document[id].l.value;
var oFile = document[id].img.files[0];
id_g = id;
tipo_g = tipo;
lang_g = lang;
if(oFile){
var oFReader = new FileReader();
oFReader.onload = fileLoaded;
sMimeType = oFile.type;
oFReader.readAsBinaryString(oFile);
}
}
这是up_img.php
require_once('dbconn.php');
require_once('../utility/sec.php');
$json = json_decode(file_get_contents("php://input"),true);
$id = "";
$id = $json['my_id'];
$lang = "";
$lang = $json['my_lang'];
$tipo = "";
$tipo = $json['my_tipo'];
$img_mime = "";
$img_mime = $json['img_mime_type'];
$img_base64 = "";
$img_base64 = base64_decode($json['img_base64']);
$event = new event($tipo,$lang);
$event->upload_img($img_base64,$img_mime,$id);
这里是$event->upload_img($img_base64,$img_mime,$id);
public function upload_img($img,$mime,$id){
if($this->check_img($id)){
//$img = str_replace('data:image/png;base64,', '', $img);
switch($mime){
case "image/png": case "image/jpeg": case "image/jpg": case "image/gif": case "image/tiff":{
$img = str_replace(' ', '+', $img);
$data = $img;
$ext = explode('/',$mime);
$file = $this->get_folder_picture() . md5($id) . '.' . $ext[1];
$success = file_put_contents($file, $data);
if($success)
{
$newconn = new event($this->getTipo(),$this->getLang());
$newconn->open_conn();
$query = sprintf("insert into images (`Id`,`Ext`) values (%d,'%s')",
$id,$ext[1]);
$q = mysql_query($query,$newconn->getLink());
echo mysql_error($newconn->getLink());
$newconn->close_conn();
}else
echo 'Unable to save the file.';
break;
}
default:{
echo "not a valid image. image type accepted are jpge,jpg,png,tiff and gif: u gave ".$mime;
break;
}
}
}else{
print "image error";
}
}
问题是,一旦我可视化存储在服务器中的图像(图像的路径<img src=\"$img\" alt='' title='' class='box_img' name='img_view' />
在哪里$img
),我就会看到类似这样的东西
但我的原始图像看起来像这样
任何人都可以帮助我吗?