本教程将教你如何管理使用Maven版本控制系统管理一个基于Web项目。在这里,将学习如何创建/构建/部署和运行Web应用程序:
创建Web应用程序
要创建一个简单的java web应用程序,我们将使用Maven的原型 - web应用插件。因此,让我们打开命令控制台,进入到C:
MVN目录并执行以下命令mvn命令。
C:MVN>mvn
archetype:generate
-DgroupId=com.companyname.automobile
-DartifactId=trucks
-DarchetypeArtifactId=maven-archetype-webapp
-DinteractiveMode=false |
Maven会开始处理,并建立完整的基于Web的Java应用程序项目结构。
[INFO] Scanning
for projects...
[INFO] Searching repository for plugin with
prefix: 'archetype'.
[INFO] -------------------------------------------------------------------
[INFO] Building Maven Default Project
[INFO] task-segment: [archetype:generate]
(aggregator-style)
[INFO] -------------------------------------------------------------------
[INFO] Preparing archetype:generate
[INFO] No goals needed for project - skipping
[INFO] [archetype:generate {execution: default-cli}]
[INFO] Generating project in Batch mode
[INFO] --------------------------------------------------------------------
[INFO] Using following parameters for creating
project
from Old (1.x) Archetype: maven-archetype-webapp:1.0
[INFO] --------------------------------------------------------------------
[INFO] Parameter: groupId, Value: com.companyname.automobile
[INFO] Parameter: packageName, Value: com.companyname.automobile
[INFO] Parameter: package, Value: com.companyname.automobile
[INFO] Parameter: artifactId, Value: trucks
[INFO] Parameter: basedir, Value: C:MVN
[INFO] Parameter: version, Value: 1.0-SNAPSHOT
[INFO] project created from Old (1.x) Archetype
in dir: C:MVN rucks
[INFO] -------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] -------------------------------------------------------------------
[INFO] Total time: 16 seconds
[INFO] Finished at: Tue Jul 17 11:00:00
IST 2012
[INFO] Final Memory: 20M/89M
[INFO] ------------------------------------------------------------------- |
现在去到C:/ MVN目录。您将看到创建了一个名为trucks (如artifactId指定)一个java应用程序项目。
Maven使用标准的目录结构。用上面的例子中,我们可以了解到以下关键概念
POM.xml
<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.companyname.automobile</groupId>
<artifactId>trucks</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>trucks Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>trucks</finalName>
</build>
</project> |
Maven还创建了一个示例JSP源文件
打开 C: > MVN > trucks > src > main
> webapp > 文件夹,你会看到index.jsp。
<html>
<body>
<h2>Hello World!</h2>
</body>
</html> |
构建Web应用程序
让我们打开命令控制台,进入到C:MVN rucks目录并执行以下命令mvn命令。
C:MVN rucks>mvn
clean package |
Maven将开始建设该项目。
[INFO] Scanning
for projects...
[INFO] -------------------------------------------------------------------
[INFO] Building trucks Maven Webapp
[INFO] task-segment: [clean, package]
[INFO] -------------------------------------------------------------------
[INFO] [clean:clean {execution: default-clean}]
[INFO] [resources:resources {execution:
default-resources}]
[WARNING] Using platform encoding (Cp1252
actually) to
copy filtered resources,i.e. build is platform
dependent!
[INFO] Copying 0 resource
[INFO] [compiler:compile {execution: default-compile}]
[INFO] No sources to compile
[INFO] [resources:testResources {execution:
default-testResources}]
[WARNING] Using platform encoding (Cp1252
actually) to
copy filtered resources,i.e. build is platform
dependent!
[INFO] skip non existing resourceDirectory
C:MVN ruckssrc est
esources
[INFO] [compiler:testCompile {execution:
default-testCompile}]
[INFO] No sources to compile
[INFO] [surefire:test {execution: default-test}]
[INFO] No tests to run.
[INFO] [war:war {execution: default-war}]
[INFO] Packaging webapp
[INFO] Assembling webapp[trucks] in [C:MVN
rucks arget rucks]
[INFO] Processing war project
[INFO] Copying webapp resources[C:MVN ruckssrcmainwebapp]
[INFO] Webapp assembled in[77 msecs]
[INFO] Building war: C:MVN rucks arget rucks.war
[INFO] -------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] -------------------------------------------------------------------
[INFO] Total time: 3 seconds
[INFO] Finished at: Tue Jul 17 11:22:45
IST 2012
[INFO] Final Memory: 11M/85M
[INFO] ------------------------------------------------------------------- |
部署Web应用程序
现在复制创建的trucks.war 到C: > MVN > trucks >
target >文件夹到web服务器的webapp目录下,然后重新启动Web服务器。
测试Web应用程序
使用URL运行Web应用程序 : http://<server-name>:<port-number>/trucks/index.jsp
验证输出。
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