如何在Play Framework 2.1.1 Java中为RequireJs使用多个main.js文件

How to use multiple main.js files for RequireJs in Play Framework 2.1.1 Java?

本文关键字:文件 js main RequireJs 中为 Play Framework Java      更新时间:2023-09-26

我正在使用Play Framework 2.1.1中的AngularJs+RequireJs构建一个单页应用程序。我有两个应用程序坐在同一个播放服务器,管理面板和正常的网站。这就是为什么我有两个用于Admin Dashboard和Normal网站的main.js文件。应用程序结构如下所示。我从public/javascripts 得到的

我们想将这两个页面分开,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rootmain.js中,一切都很好。如果我转到我的应用程序http://localhost:9000/,一切都很好,如果我查看Firebug上的网络面板,我只看到require.js和main.js,这正是我所期望的。但是,当我转到管理面板http://localhost:9000/admin时,每个文件都被正确地缩小了。但当我查看网络时,我看到了所有的javascript文件,而这些文件本不应该是那样的。我认为每个脚本都应该从requireJ动态加载。因此,这意味着浏览器会多次调用以获取所有必要的文件,而不是只获取require.js和main.js来解决依赖关系。我做错什么了吗?

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

├── 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

你会注意到admin/里面有main.js,在根目录中我还有另一个main.js

代码看起来非常像这样。

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
});

这就是我的模板对于正常站点的样子

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

这就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"
  )

这就是我进行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",

我得到这个错误而不是

({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.

你可以看到它在requireJsShim中将两个字符串连接在一起,我需要它来引导angularjs。

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

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

然后,当您使用"play-start"开始播放时,requireJS会将这些单独的文件视为模块,您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,并在您的站点中,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,而不是播放框架文档中建议的默认rhino编译器,您可以在此处下载:https://raw.github.com/jrburke/r.js/master/dist/r.js

将该文件复制到您的项目文件夹中,并在requireJsShim行上方的build.scala中添加以下行:

    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",
 )