Question

我是MongoDB和php的完全新手，我的问题是我的位置数据库中存储的图像没有显示。我有一个测试代码插入我的所有数据，包括我的图像名称。此图像名称将用于访问存储在同一数据库中的图像。

这是我的插入数据代码

 <?php
try {
    // open connection to MongoDB server

    $conn = new Mongo('localhost');

    //access database

    $db = $conn->location;

    //access collection
    $collection = $db->loc;

    // insert a new document
    $filename = "102120140913290.jpg";
    $data = array(
        'name' => 'Butuan',
        'latitude'=> 8.9576751,
        'longitude' => 125.5963283,
        'imagename' => $filename
        );

    $collection->insert($data);
    echo 'Inserted document withy ID:' . $data['_id'] . '<br/>';

    $img = $db->getGridFS();
    $path = "C:\\xampp\\htdocs\\mysite\\upload\\";


    $storedfile =   $img->storeFile($path . $filename,
             array("metadata" => array("filename" => $filename),
             "filename" => $filename));

    echo 'Stored file ID:' . $storedfile;

} catch (MongoConnectionException $e) {
  die('Error connecting to MongoDB server');
} catch (MongoException $e) {
  die('Error: ' . $e->getMessage());
}

?>

这是我的获取图像代码

<?php

    try{

        $conn = new Mongo('localhost');
        $db = $conn->location;
        $collection = $db->loc;

        $cursor = $collection->find();
        $imgname;
        echo $cursor->count(). 'document(s) found. <br/>';

        foreach($cursor as $obj){
            $imgname = $obj['imagename'];
        }


        $gridFS = $db->getGridFS();
        $image = $gridFS->findOne($imgname);

        header('Content-type: image/jpeg');
        echo $image->getBytes();

    } catch (MongoConnectionException $e) {
      die('Error connecting to MongoDB server');
    } catch (MongoException $e) {
      die('Error: ' . $e->getMessage());
    }

    ?>

我得到的只是一张破碎的图像。请帮帮我..谢谢..

Answer 1

只是检查一些事情

你应该使用＆＃34;新的MongoClient＆＃34; as＆＃34;新的Mongo＆＃34;已被诽谤。

尝试替换以下代码段：

$gridFS = $db->getGridFS();
$image = $gridFS->findOne($imgname);
$imageFile = $image->getBytes();

header('Content-type: image/jpeg');
header("Content-Length: " . strlen($imageFile));
ob_clean();
echo $imageFile;

另请查看storeUpload函数http://php.net/manual/en/mongogridfs.storeupload.php

图像不使用php在MongoDB中显示

1 个答案: