添加jar包到maven本地仓库
- 添加jar包到maven本地仓库
mvn install:install-file -DgroupId=com.oracle -DartifactId=ojdbc14 -Dversion=9.0.2.0.0 -Dpackaging=jar -Dfile=ojdbc14.jar
跳过单元测试
mvn package -Dmaven.test.skip=true
发布项目到私有仓库
- 在项目Pom.xml中之间加入
<distributionManagement>
<repository>
<id>releases</id>
<name>Popocloud Release Repository</name>
<url>http://maven:8081/nexus/content/repositories/releases/</url>
</repository>
<snapshotRepository>
<id>snapshots</id>
<name>Popocloud Snapshot Repository</name>
<url>http://maven:8081/nexus/content/repositories/snapshots/</url>
</snapshotRepository>
</distributionManagement>
- 确保maven.setting.xml中加入了私有仓库用户名和密码
<server>
<id>releases</id>
<username>admin</username>
<password>admin123</password>
</server>
<server>
<id>snapshots</id>
<username>admin</username>
<password>admin123</password>
</server>
</servers>
- 对项目执行maven deploy命令，可实现将项目发布的maven私有仓库供其他开发人员使用。
mvn deploy:deploy-file -Dmaven.test.skip=true -Dfile=alipay-sdk-java20151021120052-1.0.jar -DgroupId=alipay -DartifactId=alipay-sdk-java20151021120052 -Dversion=1.0 -Dpackaging=jar -DrepositoryId=nexus-thirdparty -Durl=http://192.168.13.145:10081/nexus/content/repositories/thirdparty/
maven依赖管理
- 第一声明优先原则
示例：
<dependencies>
<!-- spring-beans-4.2.4 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
<!-- spring-beans-3.0.5 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-spring-plugin</artifactId>
<version>2.3.24</version>
</dependency>
- 路径近者优先原则
示例：
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
- 排除原则
示例：
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-spring-plugin</artifactId>
<version>2.3.24</version>
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
</exclusion>
</exclusions>
</dependency>
- 版本锁定原则
示例：
<properties>
<spring.version>4.2.4.RELEASE</spring.version>
<hibernate.version>5.0.7.Final</hibernate.version>
<struts.version>2.3.24</struts.version>
</properties>
<!-- 锁定版本，struts2-2.3.24、spring4.2.4、hibernate5.0.7 -->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
依赖管理技巧
- 全局排除依赖
项目里使用了log4j2做日志处理，要排除掉Spring Boot 很多jar里边默认依赖的日志包spring-boot-starter-logging。一个一个写依赖排除也可以，但是太繁琐了，经过尝试，只让它依赖个spring-boot-starter-logging的空壳，里边的东西全部排除掉即可。使用下边的方式就可以达到想要的效果。
<!--全局排除spring-boot-starter-logging内的所有依赖-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
<exclusions>
<exclusion>
<groupId>*</groupId>
<artifactId>*</artifactId>
</exclusion>
</exclusions>
</dependency>
要全局排除其他依赖，也可采用这种方式。
依赖调解
当依赖冲突时，maven依照以下原则自动进行选择优先的依赖版本
- 依赖调解第一原则：路径优先，优先路径深度最短的版本
- 依赖调解第二原则：声明优先，假设路径深度相等，那么声明在前的会被引用。
查看依赖树
- 可执行以下命令查看依赖数，-表示被忽略掉的依赖
mvn dependency:tree
[INFO] +- junit:junit:jar:4.12:compile
[INFO] | \- org.hamcrest:hamcrest-core:jar:1.3:compile
[INFO] +- org.springframework.boot:spring-boot-starter-web:jar:1.4.2.RELEASE:compile
[INFO] | +- org.springframework.boot:spring-boot-starter:jar:1.4.2.RELEASE:compile
[INFO] | | +- org.springframework.boot:spring-boot-starter-logging:jar:1.4.2.RELEASE:compile
[INFO] | | | +- ch.qos.logback:logback-classic:jar:1.1.7:compile
[INFO] | | | | \- ch.qos.logback:logback-core:jar:1.1.7:compile
[INFO] | | | +- org.slf4j:jul-to-slf4j:jar:1.7.21:compile
[INFO] | | | \- org.slf4j:log4j-over-slf4j:jar:1.7.21:compile
[INFO] | | +- org.springframework:spring-core:jar:4.3.4.RELEASE:compile
[INFO] | | \- org.yaml:snakeyaml:jar:1.17:runtime
[INFO] | +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.4.2.RELEASE:compile
[INFO] | | +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.5.6:compile
[INFO] | | +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.5.6:compile
[INFO] | | \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.5.6:compile
[INFO] | +- org.hibernate:hibernate-validator:jar:5.2.4.Final:compile
[INFO] | | +- javax.validation:validation-api:jar:1.1.0.Final:compile
[INFO] | | +- org.jboss.logging:jboss-logging:jar:3.3.0.Final:compile
[INFO] | | \- com.fasterxml:classmate:jar:1.3.3:compile
[INFO] | +- org.springframework:spring-web:jar:4.3.4.RELEASE:compile
[INFO] | | +- org.springframework:spring-aop:jar:4.3.4.RELEASE:compile
[INFO] | | +- org.springframework:spring-beans:jar:4.3.4.RELEASE:compile
[INFO] | | \- org.springframework:spring-context:jar:4.3.4.RELEASE:compile
[INFO] | \- org.springframework:spring-webmvc:jar:4.3.4.RELEASE:compile
[INFO] | \- org.springframework:spring-expression:jar:4.3.4.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-starter-data-jpa:jar:1.4.2.RELEASE:compile
[INFO] | +- org.springframework.boot:spring-boot-starter-aop:jar:1.4.2.RELEASE:compile
[INFO] | | \- org.aspectj:aspectjweaver:jar:1.8.9:compile
[INFO] | +- org.springframework.boot:spring-boot-starter-jdbc:jar:1.4.2.RELEASE:compile
[INFO] | | +- org.apache.tomcat:tomcat-jdbc:jar:8.5.6:compile
[INFO] | | | \- org.apache.tomcat:tomcat-juli:jar:8.5.6:compile
[INFO] | | \- org.springframework:spring-jdbc:jar:4.3.4.RELEASE:compile
[INFO] | +- org.hibernate:hibernate-core:jar:5.0.11.Final:compile
[INFO] | | +- org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:1.0.0.Final:compile
[INFO] | | +- org.javassist:javassist:jar:3.20.0-GA:compile
[INFO] | | +- antlr:antlr:jar:2.7.7:compile
[INFO] | | +- org.jboss:jandex:jar:2.0.0.Final:compile
[INFO] | | +- dom4j:dom4j:jar:1.6.1:compile
[INFO] | | | \- xml-apis:xml-apis:jar:1.4.01:compile
[INFO] | | \- org.hibernate.common:hibernate-commons-annotations:jar:5.0.1.Final:compile
[INFO] | +- org.hibernate:hibernate-entitymanager:jar:5.0.11.Final:compile
[INFO] | +- javax.transaction:javax.transaction-api:jar:1.2:compile
[INFO] | +- org.springframework.data:spring-data-jpa:jar:1.10.5.RELEASE:compile
[INFO] | | +- org.springframework.data:spring-data-commons:jar:1.12.5.RELEASE:compile
[INFO] | | +- org.springframework:spring-orm:jar:4.3.4.RELEASE:compile
[INFO] | | +- org.springframework:spring-tx:jar:4.3.4.RELEASE:compile
[INFO] | | +- org.slf4j:slf4j-api:jar:1.7.21:compile
[INFO] | | \- org.slf4j:jcl-over-slf4j:jar:1.7.21:compile
[INFO] | \- org.springframework:spring-aspects:jar:4.3.4.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-starter-actuator:jar:1.4.2.RELEASE:compile
[INFO] | \- org.springframework.boot:spring-boot-actuator:jar:1.4.2.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-devtools:jar:1.4.2.RELEASE:compile
[INFO] | +- org.springframework.boot:spring-boot:jar:1.4.2.RELEASE:compile
[INFO] | \- org.springframework.boot:spring-boot-autoconfigure:jar:1.4.2.RELEASE:compile
[INFO] +- com.fasterxml.jackson.dataformat:jackson-dataformat-xml:jar:2.8.4:compile
[INFO] | +- com.fasterxml.jackson.module:jackson-module-jaxb-annotations:jar:2.8.4:compile
[INFO] | +- org.codehaus.woodstox:stax2-api:jar:3.1.4:compile
[INFO] | \- com.fasterxml.woodstox:woodstox-core:jar:5.0.2:compile
[INFO] +- com.fasterxml.jackson.core:jackson-core:jar:2.8.4:compile
[INFO] +- com.fasterxml.jackson.core:jackson-annotations:jar:2.8.4:compile
[INFO] +- com.fasterxml.jackson.core:jackson-databind:jar:2.8.4:compile
[INFO] +- org.apache.axis:axis:jar:1.4:compile
[INFO] +- commons-discovery:commons-discovery:jar:0.2:compile
[INFO] +- javax.xml:jaxrpc-api:jar:1.1:compile
[INFO] +- org.eclipse.birt.runtime.3_7_1:javax.wsdl:jar:1.5.1:compile
[INFO] +- commons-logging:commons-logging:jar:1.1.1:compile
[INFO] +- org.apache.logging.log4j:log4j-api:jar:2.6.2:compile
[INFO] +- org.apache.logging.log4j:log4j-core:jar:2.6.2:compile
[INFO] +- mysql:mysql-connector-java:jar:5.1.40:compile
[INFO] +- com.oracle:ojdbc6:jar:11.2.0.3:compile
[INFO] +- com.h2database:h2:jar:1.4.192:compile
[INFO] \- com.alibaba:druid:jar:1.0.26:compile
[INFO] +- com.alibaba:jconsole:jar:1.8.0:system
[INFO] \- com.alibaba:tools:jar:1.8.0:system
问题
- eclipse中的maven web项目报错：org/codehaus/plexus/archiver/jar/JarArchiverhttp://blog.csdn.net/lele2426/article/details/38963071
名词
- 一方库：本工程中的各模块的相互依赖
- 二方库：公司内部的依赖库，一般指公司内部的其他项目发布的jar包
- 三方库：公司之外的开源库， 比如apache、ibm、google等发布的依赖
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