ExtJS使用Sencha Cmd合拢javascript文件为一个文件
日期：2014-05-16 浏览次数：20401 次
ExtJS使用Sencha Cmd合并javascript文件为一个文件
1. Motivation
To reduce page load time by reducing the requests of fetching JavaScript files.
2. Creating a production build manually
Download and Install Sencha Cmd and Extjs sdk
1) Download SenchaCmd-3.1.2.342-windows.exe and ext-4.2.1-gpl.zip
2) Install SenchaCmd-3.1.2.342-windows.exe
3) Add Sencha cmd bin directory to you path, for me, C:\tools\SenchaCmd\bin\Sencha\Cmd\3.1.2.342 is added to my path
4) Extract ext-4.2.1-gpl.zip, assume the extracted folder name is C:\tools\ext-4.2.1.883
Create a new Sencha Cmd Project for getting the configuration files required to build iem-web
1) Open a command prompt
2) Change directory to C:\tools\ext-4.2.1.883
3) Enter the following command
sencha generate app IEM ProjectBuild/IEM
4) You will see a generated project named IEM under C:\tools\ext-4.2.1.883\ProjectBuild\IEM
5) Why we need this step? We want to get the configuration files required by sencha cmd for iem-web, we can easily do modification on these files instead of creating them manually.
Copy Your Project files into the Sencha Cmd Project
1) Remove app folder under ProjectBuild/IEM
2) Copy iem-web/app folder to ProjectBuild/IEM
3) Copy iem-web/IemApp.js, iemForCompile.jsp, api-debug.js, Util.js to ProjectBuild/IEM
Create a Production Build
1) Modify ProjectBuild/IEM/.sencha/app/sencha.cfg file.
a) set app.classpath=${app.dir}/app,${app.dir}/iemApp.js
b) set app.page.name=iemForCompile.jsp
2) add “skip.sass=true” to ProjectBuild/IEM/.sencha/app/production.properties
3) Open a command prompt and change directory to ProjectBuild/IEM
4) Enter the following command:
sencha app build
5) You will see the generated files under C:\tools\ext-4.2.1.883\build\IEM\production
all-classes.js and iemForCompile.jsp
6) Rename iemForCompile.jsp to iem.jsp
7) Copy the all-classes.js and iem.jsp to your tomcat
8) Open iem.jsp and do the following change
a) Change
<link rel="stylesheet" type="text/css" href="../../resources/ext-theme-classic/ext-theme-classic-all.css">
To
<link rel="stylesheet" type="text/css" href="ext/resources/ext-theme-classic/ext-theme-classic-all.css">
b) Remove <link rel="stylesheet" href="resources/IEM-all.css"/>
9) Your final iem.jsp will look like this
Jsp related codes are omitted …
10) test your application at http://localhost:8080/iem-web/iem.jsp
3. Integrating the build with maven
Copy extjs related files and sencha cmd related files required by building process to iem-web\jsBuild folder.
Please note this step is to prepare the execution environment for iem-web, the JavaScript files of iem-web are not in this folder, and they will be copied in maven.
Run sencha generate app IEM ProjectBuild/IEM command under iem-web\jsBuild\ext-4.2.1.883 to generate an empty IEM project and the configuration files we need.
1. Motivation
To reduce page load time by reducing the requests of fetching JavaScript files.
2. Creating a production build manually
Download and Install Sencha Cmd and Extjs sdk
1) Download SenchaCmd-3.1.2.342-windows.exe and ext-4.2.1-gpl.zip
2) Install SenchaCmd-3.1.2.342-windows.exe
3) Add Sencha cmd bin directory to you path, for me, C:\tools\SenchaCmd\bin\Sencha\Cmd\3.1.2.342 is added to my path
4) Extract ext-4.2.1-gpl.zip, assume the extracted folder name is C:\tools\ext-4.2.1.883
Create a new Sencha Cmd Project for getting the configuration files required to build iem-web
1) Open a command prompt
2) Change directory to C:\tools\ext-4.2.1.883
3) Enter the following command
sencha generate app IEM ProjectBuild/IEM
4) You will see a generated project named IEM under C:\tools\ext-4.2.1.883\ProjectBuild\IEM
5) Why we need this step? We want to get the configuration files required by sencha cmd for iem-web, we can easily do modification on these files instead of creating them manually.
Copy Your Project files into the Sencha Cmd Project
1) Remove app folder under ProjectBuild/IEM
2) Copy iem-web/app folder to ProjectBuild/IEM
3) Copy iem-web/IemApp.js, iemForCompile.jsp, api-debug.js, Util.js to ProjectBuild/IEM
Create a Production Build
1) Modify ProjectBuild/IEM/.sencha/app/sencha.cfg file.
a) set app.classpath=${app.dir}/app,${app.dir}/iemApp.js
b) set app.page.name=iemForCompile.jsp
2) add “skip.sass=true” to ProjectBuild/IEM/.sencha/app/production.properties
3) Open a command prompt and change directory to ProjectBuild/IEM
4) Enter the following command:
sencha app build
5) You will see the generated files under C:\tools\ext-4.2.1.883\build\IEM\production
all-classes.js and iemForCompile.jsp
6) Rename iemForCompile.jsp to iem.jsp
7) Copy the all-classes.js and iem.jsp to your tomcat
8) Open iem.jsp and do the following change
a) Change
<link rel="stylesheet" type="text/css" href="../../resources/ext-theme-classic/ext-theme-classic-all.css">
To
<link rel="stylesheet" type="text/css" href="ext/resources/ext-theme-classic/ext-theme-classic-all.css">
b) Remove <link rel="stylesheet" href="resources/IEM-all.css"/>
9) Your final iem.jsp will look like this
Jsp related codes are omitted …
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title>IEM</title> <link rel="stylesheet" type="text/css" href="ext/resources/ext-theme-classic/ext-theme-classic-all.css"> <link rel="stylesheet" type="text/css" href="css/app_style.css"> <link rel="stylesheet" type="text/css" href="css/iemStyles.css"> </head> <body> <div align="center" id="divLoadPage" class="loadingText">Loading page, please wait ... </div> </body> <script type="text/javascript" src="all-classes.js"></script> </html>
10) test your application at http://localhost:8080/iem-web/iem.jsp
3. Integrating the build with maven
Copy extjs related files and sencha cmd related files required by building process to iem-web\jsBuild folder.
Please note this step is to prepare the execution environment for iem-web, the JavaScript files of iem-web are not in this folder, and they will be copied in maven.
Run sencha generate app IEM ProjectBuild/IEM command under iem-web\jsBuild\ext-4.2.1.883 to generate an empty IEM project and the configuration files we need.
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