实现Nginx Upload 模块 功能上传文件。

时间：2024-01-21 21:00:57

分析（直接实践是最好的。。。。。）：

一、Ningx 上传（

1.安装Nginx 的模块文件(upload):https://www.nginx.com/resources/wiki/modules/upload/，默认Nginx 肯定是没安装这个扩展模块的，你可以准备删除Nginx重新去官网下载一个最新稳定版本，并且进行编译吧。。。。。。

# Upload form should be submitted to this location

    location /upload {

# Pass altered request body to this location

        upload_pass   /upload.php;

# Store files to this directory

# The directory is hashed, subdirectories 0 1 2 3 4 5 6 7 8 9 should exist

这里是扔到10个文件夹里去

        upload_store /usr/share/nginx/html/file 1;

# Allow uploaded files to be read only by user

        upload_store_access user:r;

就是在这里，他会自动给你命名。

# Set specified fields in request body

        upload_set_form_field "${upload_field_name}_name" $upload_file_name;

        upload_set_form_field "${upload_field_name}_content_type" $upload_content_type;

        upload_set_form_field "${upload_field_name}_path" $upload_tmp_path;

# Inform backend about hash and size of a file

        upload_aggregate_form_field "${upload_field_name}_md5" $upload_file_md5;

        upload_aggregate_form_field "${upload_field_name}_size" $upload_file_size;

        upload_pass_form_field "^submit$|^description$";

    }

这里是个大坑，因为如果默认就是当前的服务器的80端口，配置这个是会出错的，我就直接没用代理，直接
        upload_pass   /upload.php;
#如果是当前端口，设置proxy_pass会出现错误 
# Pass altered request body to a backend 
#location @test {
#  proxy_pass htpp://127.0.0.1; 
#}

2.Nginx的某个路由（看我下面的配置文件）检测到上传请求后，会分别将各个你定义的form file name，上传到不同的文件夹，一共是10个（创建10个文件夹，命名0 1  2 3 ...），文件位置自定义（但一定要包含那10个文件夹，这个切记），一定要检测你创建的文件夹Nginx是否具有写入权限，这个可以自己看log（这个相当重要），如果你配置完成后想玩点新花样，可以自己玩玩，还可以限制上传速度之类的，而且可以做转发，如果你配置的代理服务器本身就做了URL反向代理，那肯定可以转发上传文件到多个Nginx服务器（上传文件提交信息，比如文件位置在哪儿之类的。）去滴。。。

二、直接PHP上传

PHP上传文件，本身就要配置Nginx 模块，所以很多人会搞混，其实两者是有差异的，

正常的上传流程：html 提交上传文件，nginx 收到后 扔到tmp目录，PHP收到后，把TMP的上传文件扔到自己想放的文件夹。

-------------------------------------------------------------------

两者都需要编写HTML，直接提交给Nginx ，在Upload Modules 配置好了，是可以直接接受多个文件上传的。

<!-- 这是提交给nginx -->

<html lang="CN">

<head>

    <meta charset="UTF-8">

    <title>Test upload</title>

</head>

<body>

<h2>Select files to upload</h2>

<form enctype="multipart/form-data" action="/upload" method="post">

    <input type="file" name="file"><br>
    <input type="file" name="file1"><br>
    <input type="file" name="file2"><br>
    <input type="submit" name="submit" value="Upload">

    <input type="hidden" name="test" value="value">

</form>

</body>

</html>

<!-- 这是直接提交给php -->

<html lang="CN">

<head>

    <meta charset="UTF-8">

    <title>Test upload</title>

</head>

<body>

<h2>Select files to upload</h2>

<form enctype="multipart/form-data" action="/upload.php" method="post">

    <input type="file" name="file"><br>

    <input type="submit" name="submit" value="Upload">

    <input type="hidden" name="test" value="value">

</form>

</body>

</html>

　　

1：通过配置Ningx 安装 Upload Modules 进行 文件上传 再从PHP 接受 Ningx POST过来的参数。

2.直接通过编写PHP，从HTML 负责文件上传

server {

    listen       80;

    server_name  localhost;

charset utf-8;

access_log  /usr/local/nginx/logs/access.log  main;

    client_max_body_size 100m;

# Upload form should be submitted to this location

    location /upload {

# Pass altered request body to this location

        upload_pass   /upload.php;

# Store files to this directory

# The directory is hashed, subdirectories 0 1 2 3 4 5 6 7 8 9 should exist

        upload_store /usr/share/nginx/html/file 1;

# Allow uploaded files to be read only by user

        upload_store_access user:r;

# Set specified fields in request body

        upload_set_form_field "${upload_field_name}_name" $upload_file_name;

        upload_set_form_field "${upload_field_name}_content_type" $upload_content_type;

        upload_set_form_field "${upload_field_name}_path" $upload_tmp_path;

# Inform backend about hash and size of a file

        upload_aggregate_form_field "${upload_field_name}_md5" $upload_file_md5;

        upload_aggregate_form_field "${upload_field_name}_size" $upload_file_size;

        upload_pass_form_field "^submit$|^description$";

    }

#如果是当前端口，设置proxy_pass会出现错误

# Pass altered request body to a backend

    #location @test {

    #   proxy_pass   htpp://127.0.0.1;

    #}

    location / {

        root           /usr/share/nginx/html/work/public;

        index  index.html index.htm index.php;

    }

    error_page  404              /404.html;

# redirect server error pages to the static page /50x.html

    error_page   500 502 503 504  /50x.html;

    location = /50x.html {

        root   /usr/share/nginx/html;

    }

    location ~ \.php$ {

        root           /usr/share/nginx/html/work/public;

        fastcgi_pass   unix:/opt/remi/php70/root/run/lock/php-fcgi.sock;

        fastcgi_index  index.php;

        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;

        include        fastcgi_params;

    }

    location ~ .*＼.(gif|jpg|jpeg|png|bmp|swf)$

    {

        expires       15d;

    }

    location ~ .*＼.(js|css)?$

    {

        expires       1d;

    }

}

　　

自己感受~~~~~

然后贴上Demo PHP 代码：

<?php

header('Content-Type: text/html;charset=UTF-8');

//文件后缀=>文件类型

$type = ['.pdf' => 'application/pdf'];

const FILE_DIR = '/usr/share/nginx/html/work/';

//如果非nginx upload module 上传文件

if (count(($file = $_FILES['file'])) > 0) {

    if ($file['error'] == 0) {

        //判断文件类型是否存在,文件后缀是我们自己的key去定义

        if ($fileType = array_search($file['type'], $type)) {

            //以当前的时间命名目录

            $date_dir = date('Y-m-d', time());

            //如果目录没创建,我们就自己创建一个

            if (!is_dir(FILE_DIR . $date_dir)) {

                if (!mkdir(FILE_DIR . $date_dir)) {

                    return header('location:503.html');

                }

            }

            //文件的MD5+当前unix时间戳+一个5位随机数,如果此处需求频繁也可以用微秒时间戳

            $filename = FILE_DIR . $date_dir . '/' . (md5_file($file['tmp_name']) . time() . rand(9999, 99999)) . $fileType;

            //生成新的文件

            if (rename($file['tmp_name'], $filename)) {

                return header('Location: success.html');

            }

        }

    }

    switch ($file['error']) {

        case 1:

            http_response_code(400);

            exit('文件大小超出了服务器的空间大小');

        case 2:

            http_response_code(400);

            exit('要上传的文件大小超出浏览器限制');

        case 3:

            http_response_code(400);

            exit('文件仅部分被上传');

        case 4:

            http_response_code(404);

            exit('没有找到要上传的文件');

        case 5:

            http_response_code(503);

            exit('服务器临时文件夹丢失');

        case 6:

            http_response_code(503);

            exit('文件写入到临时文件夹出错');

    }

}

//如果是nginx upload module

if (count(($file = $_POST)) > 0) {

    //判断文件类型是否存在,文件后缀是我们自己的key去定义

    if ($fileType = array_search($file['file_content_type'], $type)) {

        //以当前的时间命名目录

        $date_dir = date('Y-m-d', time());

        //如果目录没创建,我们就自己创建一个

        if (!is_dir(FILE_DIR . $date_dir)) {

            if (!mkdir(FILE_DIR . $date_dir)) {

                return header('location:503.html');

            }

        }

        //文件的MD5+当前unix时间戳+一个5位随机数,如果此处需求频繁也可以用微秒时间戳

        $filename = FILE_DIR . $date_dir . '/' . (md5_file($file['file_path']) . time() . rand(9999, 99999)) . $fileType;

        //生成新的文件

        if (rename($file['file_path'], $filename)) {

            return header('Location: success.html');

        }

    }

}

http_response_code(400);

exit('错误操作方式!');

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