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ExtJS使用Sencha Cmd合并javascript文件为一个文件

senchaextjs构建javascript合并 
阅读更多
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.
Still we don’t have the iem-web JavaScript files.
Modify configuration files as described on section “Creating a production build manually” to configure iem-web project properly.

The folder structure looks like as following screenshot:


Modify pom.xml to do the integration
1) Copy iem-web JavaScript files to jsBuild/ext-4.2.1.883/ProjectBuild/IEM/ for build 

<plugin>
	<artifactId>maven-resources-plugin</artifactId>
	<version>2.4.3</version>
	<executions>
	
		<execution>
			<id>copy-single-files-for-sench-cmd-build</id>
			<phase>validate</phase>
			<goals>
				<goal>copy-resources</goal>
			</goals>
			<configuration>
				<outputDirectory>jsBuild/ext-4.2.1.883/ProjectBuild/IEM</outputDirectory>
				<resources>
					<resource>
						<directory>src/main/webapp/</directory>
				        <includes>
				          <include>api-debug.js</include>
				          <include>iemApp.js</include>
				          <include>iem.jsp</include>
				          <include>Util.js</include>
				        </includes>
					</resource>
				</resources>
			</configuration>
		</execution>
		
		<execution>
			<id>copy-app-folder-for-sench-cmd-build</id>
			<phase>validate</phase>
			<goals>
				<goal>copy-resources</goal>
			</goals>
			<configuration>
				<outputDirectory>jsBuild/ext-4.2.1.883/ProjectBuild/IEM/app</outputDirectory>
				<resources>
					<resource>
						<directory>src/main/webapp/app</directory>				
					</resource>
				</resources>
			</configuration>
		</execution>
</executions>
</plugin>


2) We need to do some modification, because we need to run the “sencha app build” command under jsBuild/ext-4.2.1.883/ProjectBuild/IEM folder, so we need to modify some related path in iem.jsp 

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-antrun-plugin</artifactId>
    <version>1.7</version>
    <executions>
        <execution>
            <id>modify iem.jsp for build</id>
            <phase>initialize</phase>
            <configuration>
                <target name="modify iem.jsp for build">
		<replace file="${basedir}/jsBuild/ext-4.2.1.883/ProjectBuild/IEM/iem.jsp" token="ext/resources/" value="../../resources/"/>
		<replace file="${basedir}/jsBuild/ext-4.2.1.883/ProjectBuild/IEM/iem.jsp" token="ext/ext-all-debug.js" value="../../ext-dev.js"/>
		<replace file="${basedir}/jsBuild/ext-4.2.1.883/ProjectBuild/IEM/iem.jsp" token="ext/ext-all.js" value="../../ext-dev.js"/>
		
                </target>
            </configuration>
            <goals>
                <goal>run</goal>
            </goals>
        </execution>                
        <execution>
            <id>copy sencha cmd output files and bankup the original jsp file</id>
            <phase>process-sources</phase>
            <configuration>
                <target name="copy sencha cmd output files and bankup the original jsp file">
                	<!-- first bankup the original iem.jsp -->
                    <copy file="${basedir}/jsBuild/ext-4.2.1.883/build/IEM/production/iem.jsp" tofile="${basedir}/src/main/webapp/iemc.jsp"/>
                    <copy file="${basedir}/jsBuild/ext-4.2.1.883/build/IEM/production/all-classes.js" tofile="${basedir}/src/main/webapp/all-classes.js"/>
                </target>
            </configuration>
            <goals>
                <goal>run</goal>
            </goals>
        </execution>
        <execution>
            <id>modify generated js file</id>
            <phase>process-sources</phase>
            <configuration>
                <target name="modify generated js file">
                    <replace file="${basedir}/src/main/webapp/iemc.jsp" token="../../resources" value="ext/resources"/>
                    <replace file="${basedir}/src/main/webapp/iemc.jsp">
		  <replacetoken><![CDATA[<link rel="stylesheet" href="resources/IEM-all.css"/>]]></replacetoken>
		  <replacevalue><![CDATA[]]></replacevalue>
		</replace>
                </target>
            </configuration>
            <goals>
                <goal>run</goal>
            </goals>
        </execution>
    </executions>
</plugin>


3) Start the build by executing external command in maven or use maven execution plug-in to do this
a) By executing external command 
<execution>
	<id>Creating a Production Build with Sencha Command</id>
	<phase>generate-sources</phase>
      <configuration>
          <target>
              <taskdef resource="net/sf/antcontrib/antcontrib.properties"/>
              <if>
	<equals arg1="${OS}" arg2="Windows_NT" />
	              <then>
		<echo message="invoking jsBuild.bat"/>
		<echo message="OS =${OS}" />
		<echo message="os.name = ${os.name}" />
		<echo message="os.arch = ${os.arch}" />
		<echo message="os.version = ${os.version}" />
		<exec dir="${basedir}" executable="${basedir}\jsBuild\jsBuild.bat"></exec>                                    
	              </then>
	              <else>
		<echo message="invoking jsBuild.sh"/>
		<echo message="OS =${OS}" />
		<echo message="os.name = ${os.name}" />
		<echo message="os.arch = ${os.arch}" />
		<echo message="os.version = ${os.version}" />
		<exec dir="${basedir}" executable="${basedir}\jsBuild\jsBuild.sh"></exec>                                    
	              </else>
              </if>
          </target>
      </configuration>
      <goals>
          <goal>run</goal>
      </goals>
</execution>


The content of jsBuild.bat: 
@echo off
set "CURRENT_DIR=%cd%"
cd jsBuild\ext-4.2.1.883\ProjectBuild\IEM
java -Xms256m -Xmx800m -jar ../../../senchaCmd/sencha.jar app build
cd "%CURRENT_DIR%"
exit


The content of jsBuild.sh 
#!/bin/bash
CURDIR=${PWD}
BASEDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

echo change to project directory
cd jsBuild\ext-4.2.1.883\ProjectBuild\IEM
echo current directory is ${PWD}

echo *********************************start building js********************************
java -Xms1024m -Xmx1280m -jar ../../../senchaCmd/sencha.jar app build
echo *********************************end building js**********************************

cd ${CURDIR}
exit


b) Use maven execution plug-in 

<execution>
	<id>Creating a Production Build with Sencha Command</id>
	<phase>generate-sources</phase>
	<configuration>
		<target name="Start building process">
			<echo message="os.name = ${os.name}"/>
			<echo message="os.arch = ${os.arch}"/>
			<echo message="os.version = ${os.version}"/>
			<echo message="java.class.path = ${java.class.path}"/>
			<java dir="${basedir}/jsBuild//ext-4.2.1.883/ProjectBuild/IEM"
				jar="${basedir}/jsBuild/senchaCmd/sencha.jar" fork="true"
				failonerror="false" maxmemory="800m">
				<sysproperty key="DEBUG" value="true"/>
				<jvmarg line="-Xms256m -Xmx800m"/>
				<arg value="app"/>
				<arg value="build"/>
				<classpath>
					<pathelement location="${basedir}/jsBuild/senchaCmd/sencha.jar"/>
					<pathelement path="${java.class.path}"/>
				</classpath>
			</java>							
		</target>
	</configuration>
	<goals>
		<goal>run</goal>
	</goals>
</execution>

The purpose of running bat or sh files is to run “sencha app build” under the specified folder jsBuild\ext-4.2.1.883\ProjectBuild\IEM, this is required by sencha cmd, otherwise they are a lot of configuration files need to adjusted and I am not sure whether we can adjust them correctly.

4) Also don’t forget to clean up the related files in a new round of building 
<plugin>  <!-- Clean up the rsults of copy resources -->
	<artifactId>maven-clean-plugin</artifactId>
	<configuration>
		<filesets>
			<fileset>
				<directory>${basedir}/src/main/resources/com</directory>
			</fileset>
			<fileset>
				<directory>${basedir}/src/test/resources/com</directory>
			</fileset>
			<!-- clean up the copied files for js build -->
			<fileset>
				<directory>${basedir}/jsBuild/ext-4.2.1.883/ProjectBuild/IEM/app</directory>
			</fileset>
			<fileset>
				<directory>${basedir}/jsBuild/ext-4.2.1.883/ProjectBuild/IEM</directory>
		        <includes>
		          <include>api-debug.js</include>
		          <include>iemApp.js</include>
		          <include>iem.jsp</include>
		          <include>Util.js</include>
		        </includes>
			</fileset>
			<!-- clean up the output files of js build -->
			<fileset>
				<directory>${basedir}/jsBuild/ext-4.2.1.883/build/IEM</directory>
			</fileset>
			<fileset>
				<directory>${basedir}/src/main/webapp</directory>
		        <includes>
		          <include>all-classes.js</include>
		          <include>iemc.jsp</include>
		        </includes>
			</fileset>
		</filesets>
	</configuration>
</plugin>


5) A sample pom.xml related SenchaCmd is as following:
SenchaCmd Intergration with Maven 
<plugin>
	<artifactId>maven-resources-plugin</artifactId>
	<version>2.4.3</version>
	<executions>
		<execution>
			<id>copy-single-files-for-sench-cmd-build</id>
			<phase>validate</phase>
			<goals>
				<goal>copy-resources</goal>
			</goals>
			<configuration>
				<outputDirectory>jsBuild/ext-4.2.1.883/ProjectBuild/IEM</outputDirectory>
				<resources>
					<resource>
						<directory>src/main/webapp/</directory>
				        <includes>
				          <include>api-debug.js</include>
				          <include>iemApp.js</include>
				          <include>iem.jsp</include>
				          <include>Util.js</include>
				        </includes>
					</resource>
				</resources>
			</configuration>
		</execution>									
		<execution>
			<id>copy-app-folder-for-sench-cmd-build</id>
			<phase>validate</phase>
			<goals>
				<goal>copy-resources</goal>
			</goals>
			<configuration>
				<outputDirectory>jsBuild/ext-4.2.1.883/ProjectBuild/IEM/app</outputDirectory>
				<resources>
					<resource>
						<directory>src/main/webapp/app</directory>				
					</resource>
				</resources>
			</configuration>
		</execution>					
	</executions>
</plugin>

<plugin>  <!-- Clean up the rsults of copy resources -->
	<artifactId>maven-clean-plugin</artifactId>
	<configuration>
		<filesets>
			<!-- clean up the copied files for js build -->
			<fileset>
				<directory>${basedir}/jsBuild/ext-4.2.1.883/ProjectBuild/IEM/app</directory>
			</fileset>
			<fileset>
				<directory>${basedir}/jsBuild/ext-4.2.1.883/ProjectBuild/IEM</directory>
		        <includes>
		          <include>api-debug.js</include>
		          <include>iemApp.js</include>
		          <include>iem.jsp</include>
		          <include>Util.js</include>
		        </includes>
			</fileset>
			<!-- clean up the output files of js build -->
			<fileset>
				<directory>${basedir}/jsBuild/ext-4.2.1.883/build/IEM</directory>
			</fileset>
			<fileset>
				<directory>${basedir}/src/main/webapp</directory>
		        <includes>
		          <include>all-classes.js</include>
		          <include>iemc.jsp</include>
		        </includes>
			</fileset>
		</filesets>
	</configuration>
</plugin>

<!-- 			<plugin> -->
<!-- 			  <groupId>org.codehaus.mojo</groupId> -->
<!-- 			  <artifactId>exec-maven-plugin</artifactId> -->
<!-- 			  <version>1.2</version> -->
<!-- 			  <executions>	 -->
<!-- 			    <execution> -->
<!-- 			      <id>Creating a Production Build with Sencha Command</id> -->
<!-- 			      <phase>generate-sources</phase> -->
<!-- 			      <goals> -->
<!-- 			        <goal>exec</goal> -->
<!-- 			      </goals> -->
<!-- 					<configuration> -->
<!-- 		                <executable>${jsBuildScript}</executable> -->
<!-- 		            </configuration> -->
<!-- 			    </execution> -->
<!-- 			  </executions> -->
<!-- 			</plugin> -->

<plugin>
 <groupId>org.apache.maven.plugins</groupId>
 <artifactId>maven-antrun-plugin</artifactId>
 <version>1.7</version>
 <executions>
     <execution>
            <id>modify iem.jsp for build</id>
            <phase>initialize</phase>
            <configuration>
                <target name="modify iem.jsp for build">
		<replace file="${basedir}/jsBuild/ext-4.2.1.883/ProjectBuild/IEM/iem.jsp" token="ext/resources/" value="../../resources/"/>
		<replace file="${basedir}/jsBuild/ext-4.2.1.883/ProjectBuild/IEM/iem.jsp" token="ext/ext-all-debug.js" value="../../ext-dev.js"/>
		<replace file="${basedir}/jsBuild/ext-4.2.1.883/ProjectBuild/IEM/iem.jsp" token="ext/ext-all.js" value="../../ext-dev.js"/>
		<replace file="${basedir}/jsBuild/ext-4.2.1.883/ProjectBuild/IEM/iem.jsp" token="ext/ext-all-dev.js" value="../../ext-dev.js"/>
                </target>
            </configuration>
            <goals>
                <goal>run</goal>
            </goals>
     </execution>

			<execution>
				<id>Creating a Production Build with Sencha Command</id>
				<phase>generate-sources</phase>
				<configuration>
					<target name="Start building process">
						<echo message="os.name = ${os.name}"/>
						<echo message="os.arch = ${os.arch}"/>
						<echo message="os.version = ${os.version}"/>
						<echo message="java.class.path = ${java.class.path}"/>
						<java dir="${basedir}/jsBuild//ext-4.2.1.883/ProjectBuild/IEM"
							jar="${basedir}/jsBuild/senchaCmd/sencha.jar" fork="true"
							failonerror="false" maxmemory="800m">
							<sysproperty key="DEBUG" value="true"/>
							<jvmarg line="-Xms256m -Xmx800m"/>
							<arg value="app"/>
							<arg value="build"/>
							<classpath>
								<pathelement location="${basedir}/jsBuild/senchaCmd/sencha.jar"/>
								<pathelement path="${java.class.path}"/>
							</classpath>
						</java>							
					</target>
				</configuration>
				<goals>
					<goal>run</goal>
				</goals>
			</execution>

        <execution>
            <id>copy sencha cmd output files and bankup the original jsp file</id>
            <phase>process-sources</phase>
            <configuration>
                <target name="copy sencha cmd output files and bankup the original jsp file">
                	<!-- first bankup the original iem.jsp -->
                    <copy file="${basedir}/jsBuild/ext-4.2.1.883/build/IEM/production/iem.jsp" tofile="${basedir}/src/main/webapp/iemc.jsp"/>
                    <copy file="${basedir}/jsBuild/ext-4.2.1.883/build/IEM/production/all-classes.js" tofile="${basedir}/src/main/webapp/all-classes.js"/>
                </target>
            </configuration>
            <goals>
                <goal>run</goal>
            </goals>
        </execution>
            
    	  <execution>
                <id>modify generated js file</id>
                <phase>process-sources</phase>
                <configuration>
                    <target name="modify generated js file">
                        <replace file="${basedir}/src/main/webapp/iemc.jsp" token="../../resources" value="ext/resources"/>
                        <replace file="${basedir}/src/main/webapp/iemc.jsp">
			  <replacetoken><![CDATA[<link rel="stylesheet" href="resources/IEM-all.css"/>]]></replacetoken>
			  <replacevalue><![CDATA[]]></replacevalue>
			</replace>
                    </target>
                </configuration>
                <goals>
                    <goal>run</goal>
                </goals>
    	  </execution>
    	</executions>
      <dependencies>
          <dependency>
              <groupId>ant-contrib</groupId>
              <artifactId>ant-contrib</artifactId>
              <version>20020829</version>
          </dependency>
      </dependencies>                
</plugin>


4. Frequent build failure error
1) Try not code in the following way
Ext.define(‘YourClass’,{
     name:’hello’,
     store: Ext.create(‘StoreClass’);
});

Try to instantiate store in initComponent method
2) Missed some required class
3) Required class is in all-classes.js, but its definition after its usage
  • 大小: 72 KB
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评论
2 楼 xiehuaidong880827 2015-05-13  
你好，我用sencha cmd打包完本地工程后，把app.js拷贝进去不能使用？能不能帮我看一下？QQ765273095  非常感谢
1 楼 cw_xcy 2014-07-18  
很实用！试试看看
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