使用IDEA+MAVEN管理專案依賴
java jar檔案太多了，管理起來很繁瑣，是在每個專案下面放一個lib檔案，還是所有專案公用一個lib呢？都麻煩
IDEA+MAVEN 試試看吧，
下載maven2
在IDEA專案根資料夾新建一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>get_train_data</groupId>
<artifactId>get_train_data</artifactId>
<packaging>jar</packaging>
<version>1.0</version>
<build>
<sourceDirectory>src</sourceDirectory>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
<testSourceDirectory>test</testSourceDirectory>
<testResources>
<testResource>
<directory>src/main/resources</directory>
</testResource>
</testResources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-antrun-plugin</artifactId>
<executions>
<execution>
<id>runjar</id>
<phase>install</phase>
<configuration>
<tasks>
<property name="compile-classpath" refid="maven.compile.classpath"/>
<property name="runtime-classpath" refid="maven.runtime.classpath"/>
<ant target="runjar" inheritRefs="true"/>
</tasks>
</configuration>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>jboss</id>
<url>http://repository.jboss.com/maven2</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.12</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring</artifactId>
<version>2.0.6</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-mock</artifactId>
<version>2.0.8</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>commons-httpclient</groupId>
<artifactId>commons-httpclient</artifactId>
<version>3.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>8.3-603.jdbc3</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>hibernate</groupId>
<artifactId>hibernate3</artifactId>
<version>3.2.3.GA</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>hibernate-annotations</groupId>
<artifactId>hibernate-annotations</artifactId>
<version>3.3.0.GA</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>hibernate-commons-annotations</groupId>
<artifactId>hibernate-commons-annotations</artifactId>
<version>3.0.0.GA</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>hibernate-entitymanager</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>3.3.1.GA</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>hibernate-entitymanager</groupId>
<artifactId>ejb3-persistence</artifactId>
<version>3.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.1_3</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId> commons-collections</groupId>
<artifactId> commons-collections</artifactId>
<version>3.2</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId> asm</groupId>
<artifactId> asm</artifactId>
<version>1.5.3</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>antlr</groupId>
<artifactId>antlr</artifactId>
<version>2.7.6</version>
<scope>compile</scope>
</dependency>
</dependencies>
</project>
建立一個ant 的 build.xml檔案（我需要執行我的主類GetTrainData）：
<project name="get_train_data_antrun" basedir="." default="runjar">
<path id="classpath">
<path path="${runtime-classpath}"/>
</path>
<target name="runjar">
<java classname="com.zeeeitch.GetTrainData" fork="true" maxmemory="512m">
<classpath>
<path refid="classpath"/>
<path location="get_train_data-1.0.jar"/>
</classpath>
</java>
</target>
</project>
點選重新整理的圖示，IDEA project的dispendency自動就改了，原先設定被覆蓋了
點選install吧，直接就運行了。
說明一點，maven對資料夾結構的靈活性沒有IDEA好，所以只有讓IDEA稍稍修改一下資料夾結構，