如何在Play Framework2.1.1Java中为RequireJs使用多个main.js文件？

Question

我正在使用Play Framework2.1.1中的AngularJs + RequireJs构建一个单页面应用程序。我有两个应用程序坐在同一个游戏服务器，管理仪表板和正常的网站。这就是为什么我有两个管理仪表板和正常网站的main.js文件。应用程序结构如下所示。这是我从public/javascripts那里得到的

我们希望将两个页面分开，这就是为什么我们有两个main.js文件。然而，我现在面临的问题是，在根main.js中一切都很好。如果我打开我的应用程序http://localhost:9000/，一切正常，如果我查看Firebug上的网络面板，我只看到require.js和main.js，这是我所期望的。但是，当我转到管理仪表板http://localhost:9000/admin时，每个文件都被正确缩小。但是当我查看网络时，我看到了所有本不应该存在的javascript文件。我认为每个脚本都应该是动态加载的。因此，这意味着浏览器进行多次调用来获取所有必要的文件，而不仅仅是获取require.js和main.js来解决依赖关系。我做错什么了吗？

我从这个https://github.com/maxdow/angularjs-requirejs-seed项目中得到了这个结构

├── admin
│   ├── app.js
│   ├── bootstrap.js
│   ├── controllers
│   │   ├── AdminAppController.js
│   │   └── index.js
│   ├── directives
│   │   ├── Directive.js
│   │   └── index.js
│   ├── filters
│   │   └── index.js
│   ├── impl.js
│   ├── main.js
│   └── routes.js
├── app.js
├── bootstrap.js
├── controllers
│   ├── Controller.js
│   └── index.js
├── directives
│   ├── Directive.js
│   └── index.js
├── filters
│   └── index.js
├── impl.js
├── lib
│   └── angular
│       ├── angular-cookies.min.js
│       ├── angular-flash.min.js
│       ├── angular-resource.min.js
│       └── angular.min.js
├── main.js
├── routes.js
└── services
    ├── Service.js
    └── index.js

您会注意到，在admin内部/有main.js，并且在根目录中我还有另一个main.js

代码看起来与下面的代码非常相似。

require.config({

    paths: {
        'angular': './lib/angular/angular.min',
        'angular-resource': './lib/angular/angular-resource.min',
        'angular-cookies': './lib/angular/angular-cookies.min'
    },

    /**
     * for libs that either do not support AMD out of the box, or
     * require some fine tuning to dependency mgt'
     */
    shim: {
        'angular': {
            exports: 'angular',
            deps: []
        },
        'angular-resource': {
            deps: ['angular']
        },
        'angular-cookies': {
            deps: ['angular']
        }
    }
});

require(['./bootstrap'], function () {
    //nothing to do here...see bootstrap.js
});

这是我的模板在普通网站上的样子

@helper.requireJs(core = routes.Assets.at("javascripts/require.js").url, module = routes.Assets.at("javascripts/main").url)

这是我的管理页面模板的样子

@helper.requireJs(core = routes.Assets.at("javascripts/require.js").url,
                            module = routes.Assets.at("javascripts/admin/main").url)

这是我的Build.scala

  val main = play.Project(appName, appVersion, appDependencies).settings(
    requireJs += "main.js",
    requireJsShim += "main.js"

  )

这是我执行play start时的构建外观

[info] Loading project definition from /Users/myuser/MyProject/project/main/project
[info] Set current project to project (in build file:/Users/myuser/MyProject/project/main/)
[info] RequireJS optimization has begun...
[info] app.build.js:
[info] ({appDir: "javascripts",
[info]           baseUrl: ".",
[info]           dir:"javascripts-min", mainConfigFile: "javascripts/main.js", modules: [{name: "main"}]})

Tracing dependencies for: main
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/admin/app.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/admin/bootstrap.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/admin/controllers/AdminAppController.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/admin/controllers/index.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/admin/directives/Directive.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/admin/directives/index.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/admin/filters/index.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/admin/impl.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/admin/main.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/admin/routes.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/app.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/bootstrap.js
min/controllers/Controller.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/directives/index.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/directives/Directive.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/filters/index.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/impl.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/lib/angular/angular-cookies.min.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/lib/angular/angular-flash.min.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/lib/angular/angular-resource.min.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/lib/angular/angular.min.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/main.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/routes.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/services/Service.js
Uglifying file: /Users/myuser/MyProject/project/main/target/scala-2.10/classes/public/javascripts-min/services/index.js

main.js
----------------
lib/angular/angular.min.js
filters/index.js
lib/angular/angular-resource.min.js
lib/angular/angular-cookies.min.js
services/index.js
directives/index.js
controllers/index.js
app.js
routes.js
controllers/Controller.js
directives/Directive.js
services/Service.js
impl.js
bootstrap.js
main.js

我在Build.scala中做了一些更改，以成为

requireJsShim += "main.js",
    requireJsShim += "admin/main.js",
    requireJs += "main.js",
    requireJs += "admin/main.js",

然后我得到了这个错误

({appDir: "javascripts",
[info]           baseUrl: ".",
[info]           dir:"javascripts-min", mainConfigFile: "javascripts/main.jsadmin/main.js", modules: [{name: "main"},{name: "admin/main"}]})
Error: /Users/user/MyProject/project/main/target/scala-2.10/classes/public/javascripts/main.jsadmin/main.js does not exist.

您可以看到它在requireJsShim中将两个字符串连接在一起，我需要它让bootstrap为angularjs工作。

Answer 1

在build.scala文件中，将所有动态js文件添加到requireJS，例如：

val main = play.Project(appName, appVersion, appDependencies).settings(

    requireJsShim += "main-normal.js"
    requireJs += "main-normal.js",
    requireJs += "main-admin.js",

 )

然后，当你使用'play start‘开始播放时，requireJS会将这些单独的文件作为模块，你可以在控制台输出中看到：

{
  appDir: "javascripts",
  baseUrl: ".",
  dir:"javascripts-min",
  mainConfigFile: "main-normal.js",
  modules: [
             {name: "main-normal"},
             {name: "main-admin"}
           ]
}

然后，它将开始解析这些js文件的依赖关系，在您的站点中，使用firebug/chrome dev工具进行检查，在网络选项卡中，它将反映更改，在浏览器中重新加载/删除缓存以查看更改。

此外，为了提高性能，我建议您使用r.js文件，而不是play框架文档中建议的默认rhino编译器，您可以在这里下载它：https://raw.github.com/jrburke/r.js/master/dist/r.js

将文件复制到您的项目文件夹中，并将以下行添加到requireJsShim行上方的build.scala中：

    requireNativePath := Some("r.js")

因此，实际上您的build.scala文件应该是：

val main = play.Project(appName, appVersion, appDependencies).settings(

    requireNativePath := Some("r.js"),
    requireJsShim += "main-normal.js"
    requireJs += "main-normal.js",
    requireJs += "main-admin.js",

 )