composer 自动加载(php-amqplib)

最近要使用RabbitMQ 做消息队列,也是刚接触到.因为用的的TP框架,comoser又下载不下来,所以只能手动下载拓展包,做手动加载,在php-amqplib是我手动下载下来的拓展包,创建一个composer.json文件,在里面输入

{
  "name": "php-amqplib/php-amqplib",
  "replace": {
    "videlalvaro/php-amqplib": "self.version"
  },
  "type": "library",
  "description": "Formerly videlalvaro/php-amqplib.  This library is a pure PHP implementation of the AMQP protocol. It's been tested against RabbitMQ.",
  "keywords": ["rabbitmq", "message", "queue"],
  "homepage": "https://github.com/php-amqplib/php-amqplib/",
  "authors": [
    {
      "name": "Alvaro Videla",
      "role": "Original Maintainer"
    },
    {
      "name": "John Kelly",
      "email": "johnmkelly86@gmail.com",
      "role": "Maintainer"
    },
    {
      "name": "Raúl Araya",
      "email": "nubeiro@gmail.com",
      "role": "Maintainer"
    }
  ],
  "require": {
    "php": ">=5.3.0",
    "ext-bcmath": "*",
    "ext-mbstring": "*"
  },
  "require-dev": {
    "phpunit/phpunit": "^4.8",
    "scrutinizer/ocular": "^1.1",
    "squizlabs/php_codesniffer": "^2.5"
  },
  "suggest": {
    "ext-sockets": "Use AMQPSocketConnection"
  },
  "autoload": {
    "psr-4": {
      "PhpAmqpLib\": "php-amqplib/PhpAmqpLib/"　　//主要是这里,他是你加载包的路径,PhpAmqpLib 是空间命名,遵循的是PSR-4 自动加载原则
    }
  },
  "autoload-dev": {
    "psr-4": {
      "PhpAmqpLib\Tests\Functional\": "tests/Functional",
      "PhpAmqpLib\Tests\Unit\": "tests/Unit"
    }
  },
  "license": "LGPL-2.1",
  "extra": {
    "branch-alias": {
      "dev-master": "2.7-dev"
    }
  }
}

php composer.phar dump-autoload 就会生成一个vendor文件夹,使用的时候,你就只需把vendor文件夹里的autoload.php 文件引入进去就可以自动加载了