{"id":158873,"date":"2024-11-03T05:40:38","date_gmt":"2024-11-02T21:40:38","guid":{"rendered":"https:\/\/server.hk\/cnblog\/158873\/"},"modified":"2024-11-03T05:40:39","modified_gmt":"2024-11-02T21:40:39","slug":"%e7%ae%a1%e7%90%86%e6%96%b9%e6%a1%88%e4%bb%8b%e7%b4%b9mysql%e6%95%b8%e6%93%9a%e8%a1%a8%e4%b8%ad%e5%a6%82%e4%bd%95%e7%ae%a1%e7%90%86%e5%9c%96%e7%89%87%ef%bc%9f%e4%bb%a5%e4%b8%8b%e6%98%af%e4%b8%80","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/158873\/","title":{"rendered":"\u7ba1\u7406\u65b9\u6848\u4ecb\u7d39MySQL\u6578\u64da\u8868\u4e2d\u5982\u4f55\u7ba1\u7406\u5716\u7247\uff1f\u4ee5\u4e0b\u662f\u4e00\u4e9b\u95dc\u65bc\u5716\u50cf\u6587\u4ef6\u7684\u66f4\u4f73\u5be6\u8e10\u65b9\u6cd5\uff0c\u5305\u62ec\u5b58\u5132\u3001\u7e2e\u653e\u548c\u6aa2\u7d22\u7b49\u65b9\u9762\uff0c\u4ee5\u66f4\u512a\u89e3\u6c7a\u65b9\u6848\u4f86\u9054\u5230\u66f4\u597d\u7684\u7ba1\u7406\u8207\u7d50\u679c\u3002 (mysql \u6578\u64da\u5eab\u4e2d\u5716\u7247)"},"content":{"rendered":"

\u7ba1\u7406\u65b9\u6848\u4ecb\u7d39MySQL\u6578\u64da\u8868\u4e2d\u5982\u4f55\u7ba1\u7406\u5716\u7247<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u5b57\u6642\u4ee3\uff0c\u5716\u7247\u5df2\u6210\u70ba\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5e8f\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u7121\u8ad6\u662f\u7528\u65bc\u7522\u54c1\u5c55\u793a\u3001\u793e\u4ea4\u5a92\u9ad4\u9084\u662f\u5167\u5bb9\u7ba1\u7406\u7cfb\u7d71\uff0c\u5716\u7247\u7684\u7ba1\u7406\u90fd\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728MySQL\u6578\u64da\u5eab\u4e2d\u6709\u6548\u5730\u7ba1\u7406\u5716\u7247\uff0c\u5305\u62ec\u5b58\u5132\u3001\u7e2e\u653e\u548c\u6aa2\u7d22\u7b49\u65b9\u9762\u7684\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n

\u5716\u7247\u7684\u5b58\u5132\u65b9\u5f0f<\/h2>\n

\u5728MySQL\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u5716\u7247\u6709\u5169\u7a2e\u4e3b\u8981\u65b9\u6cd5\uff1a\u5c07\u5716\u7247\u76f4\u63a5\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u6216\u5c07\u5716\u7247\u5b58\u5132\u5728\u6587\u4ef6\u7cfb\u7d71\u4e2d\uff0c\u4e26\u5728\u6578\u64da\u5eab\u4e2d\u4fdd\u5b58\u5176\u8def\u5f91\u3002<\/p>\n

1. \u76f4\u63a5\u5b58\u5132\u5716\u7247<\/h3>\n

\u9019\u7a2e\u65b9\u6cd5\u6d89\u53ca\u5c07\u5716\u7247\u4ee5\u4e8c\u9032\u5236\u683c\u5f0f\uff08BLOB\uff09\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\u3002\u9019\u6a23\u505a\u7684\u512a\u9ede\u662f\u6240\u6709\u6578\u64da\u90fd\u96c6\u4e2d\u5728\u4e00\u500b\u5730\u65b9\uff0c\u4fbf\u65bc\u7ba1\u7406\u548c\u5099\u4efd\u3002\u7136\u800c\uff0c\u9019\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u5eab\u7684\u5927\u5c0f\u8fc5\u901f\u589e\u9577\uff0c\u5f71\u97ff\u6027\u80fd\u3002<\/p>\n

CREATE TABLE images (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    image_data LONGBLOB,\n    image_type VARCHAR(255)\n);<\/code><\/pre>\n
2. \u5b58\u5132\u5716\u7247\u8def\u5f91<\/h3>\n
\u53e6\u4e00\u7a2e\u66f4\u5e38\u898b\u7684\u65b9\u6cd5\u662f\u5c07\u5716\u7247\u5b58\u5132\u5728\u6587\u4ef6\u7cfb\u7d71\u4e2d\uff0c\u4e26\u5728\u6578\u64da\u5eab\u4e2d\u4fdd\u5b58\u5176\u8def\u5f91\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\uff0c\u63d0\u9ad8\u6027\u80fd\uff0c\u4e26\u4e14\u66f4\u5bb9\u6613\u9032\u884c\u5716\u7247\u7684\u7ba1\u7406\u548c\u66f4\u65b0\u3002<\/p>\n
CREATE TABLE images (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    image_path VARCHAR(255),\n    image_type VARCHAR(255)\n);<\/code><\/pre>\n
\u5716\u7247\u7684\u7e2e\u653e\u8207\u58d3\u7e2e<\/h2>\n
\u5728\u5b58\u5132\u5716\u7247\u6642\uff0c\u8003\u616e\u5230\u6027\u80fd\u548c\u5b58\u5132\u7a7a\u9593\uff0c\u5c0d\u5716\u7247\u9032\u884c\u7e2e\u653e\u548c\u58d3\u7e2e\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u9019\u4e0d\u50c5\u53ef\u4ee5\u6e1b\u5c11\u6587\u4ef6\u5927\u5c0f\uff0c\u9084\u80fd\u63d0\u9ad8\u52a0\u8f09\u901f\u5ea6\u3002<\/p>\n
1. \u7e2e\u653e\u5716\u7247<\/h3>\n
\u4f7f\u7528\u5716\u50cf\u8655\u7406\u5eab\uff08\u5982GD\u6216ImageMagick\uff09\u53ef\u4ee5\u8f15\u9b06\u5730\u7e2e\u653e\u5716\u7247\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528PHP\u548cGD\u5eab\u7e2e\u653e\u5716\u7247\u7684\u793a\u4f8b\uff1a<\/p>\n
<?php\nfunction resizeImage($file, $width, $height) {\n    list($originalWidth, $originalHeight) = getimagesize($file);\n    $image_p = imagecreatetruecolor($width, $height);\n    $image = imagecreatefromjpeg($file);\n    imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $originalWidth, $originalHeight);\n    imagejpeg($image_p, 'path\/to\/resized_image.jpg', 100);\n}\n?><\/code><\/pre>\n
2. \u58d3\u7e2e\u5716\u7247<\/h3>\n
\u58d3\u7e2e\u5716\u7247\u53ef\u4ee5\u9032\u4e00\u6b65\u6e1b\u5c11\u6587\u4ef6\u5927\u5c0f\u3002JPEG\u683c\u5f0f\u7684\u5716\u7247\u53ef\u4ee5\u901a\u904e\u8abf\u6574\u8cea\u91cf\u53c3\u6578\u4f86\u9032\u884c\u58d3\u7e2e\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528PHP\u9032\u884cJPEG\u58d3\u7e2e\u7684\u793a\u4f8b\uff1a<\/p>\n
<?php\nfunction compressImage($source, $destination, $quality) {\n    $info = getimagesize($source);\n    if ($info['mime'] == 'image\/jpeg') {\n        $image = imagecreatefromjpeg($source);\n        imagejpeg($image, $destination, $quality);\n    }\n}\n?><\/code><\/pre>\n
\u5716\u7247\u7684\u6aa2\u7d22<\/h2>\n
\u5728\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u5716\u7247\u6642\uff0c\u6839\u64da\u5b58\u5132\u65b9\u5f0f\u7684\u4e0d\u540c\uff0c\u6aa2\u7d22\u7684\u65b9\u5f0f\u4e5f\u6703\u6709\u6240\u4e0d\u540c\u3002\u5982\u679c\u5716\u7247\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u6aa2\u7d22\u5716\u7247\uff1a<\/p>\n
SELECT image_data, image_type FROM images WHERE id = ?;<\/code><\/pre>\n
\u5982\u679c\u5716\u7247\u5b58\u5132\u5728\u6587\u4ef6\u7cfb\u7d71\u4e2d\uff0c\u5247\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u7372\u53d6\u5716\u7247\u8def\u5f91\uff0c\u7136\u5f8c\u4f7f\u7528HTML\u6a19\u7c64\u986f\u793a\u5716\u7247\uff1a<\/p>\n
<img src=\"path\/to\/image.jpg\" alt=\"Image\"><\/code><\/pre>\n
\u7d50\u8ad6<\/h2>\n
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\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc \u9999\u6e2fVPS<\/a> \u53ca\u5176\u5728\u5716\u7247\u7ba1\u7406\u65b9\u9762\u7684\u61c9\u7528\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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