怎樣編寫maven parent pom 文件

parent pom 定義你的項目模型，包括構建方式，項目環境，項目依賴，輸出JavaDoc，發佈source源碼等等，怎樣去編寫一份parent pom，這裏是一個現成的並正在某些項目中使用到的：點擊查看GitHub源碼

peaceful-basic-platform

A best global parent pom file , you can use it in jar or war project as your maven parent pom setting

<parent>
        <groupId>com.peaceful</groupId>
        <artifactId>peaceful-parent</artifactId>
        <version>1.0-SNAPSHOT</version>
</parent>

peaceful-parent

The basic configuration for build setting

1. project build coding:UTF-8

2. maven repositories:repo2

3. default profiles: dev、test、product. The pom think project should has three running env or build env:dev、test、product. you can specify the environment by :

   `mvn -Penv[test][product]  compile[deploy][jetty:run]`

   The default env is dev, you can get the env value in pom by ${project.environment} and in Java code by invoke Application.getRunningMode()

setting build plugin

1. buildnumber-maven-plugin:1.3 phase:validate desc:use timestamp as build version,you can get the version value by ${timestamp}
   in pom.xml and get the value in Java code by invoke Application.getBuildVersion()

2. maven-jar-plugin:2.6

3. maven-compiler-plugin:3.3

4. maven-war-plugin:2.0.2

5. maven-resources-plugin:2.7

6. maven-source-plugin:2.4 phase:deploy

7. maven-javadoc-plugin:2.9.1 phase:deploy

8. maven-surefire-plugin:2.7 desc: default skip test

9. yuicompressor-maven-plugin:1.5.0 desc:compress style file: .js .css

10. jetty-maven-plugin:8.1.8.v20121106 desc: start web project in jetty, default port 8888，you can change web port in your pom to override Settings

    <properties>        
           <jetty.stop.port>9999</jetty.stop.port>
           <jetty.run.port>8888</jetty.run.port>
       </properties>

setting dependencies

1. log:slf4j log4j perf4j

2. test：junit

3. common tools:guava、commons-lang三、httpclient

4. json：fastjson

5. web：jstl、javaee-api

6. db:mysql、c3p0

7. framework:spring、springMvc、mybatis

peaceful-common-utils

Cooperate with the parent pom configuration files, can read building basic information, such as building time, version number, running environment of the project

The parent pom define 3 kinds of profile：dev、test、product。If your project use the pom as parent pom,you need add peaceful-common-utils dependency in your pom file.

<dependency>
    <groupId>com.peaceful</groupId>
    <artifactId>peaceful-common-utils</artifactId>
    <version>1.0-SNAPSHOT</version>
</dependency>

The peaceful-common-utils will read your build info into application.properties.

get build version

Application.getVersion()

get running mode

Application.getRunningMode()
...
Application.isTest()
Application.isProduct()
Application.isDev()

get Running time

# you need invoke Application.loadToJVM() when your application start
Application.getRunningTime()