maven中下載jar包源碼和javadoc
1：Maven命令下載源碼和javadocs
當在IDE中使用Maven時如果想要看引用的jar包中類的源碼和javadoc需要通過maven命令下載這些源碼，然後再進行引入，通過mvn命令能夠容易的達到這個目的：
mvn dependency:sourcesmvn dependency:resolve -Dclassifier=javadoc
命令使用方法：首先進入到相應的pom.xml目錄中，然後執行以上命令：
第一個命令是嘗試下載在pom.xml中依賴的文件的源代碼。
第二個命令：是嘗試下載對應的javadocs
但是有可能一些文件沒有源代碼或者javadocs
reference
Executing mvn dependency:sources
mvn dependency:resolve -Dclassifier=javadochttp://stackoverflow.com/questions/11361331/how-to-download-sources-for-a-jar-with-maven
2：通過配置文件添加
打開maven配置文件 setting.xml文件(.../.m2/settings.xml) 增加如下配置：
<profiles>
<profile>
<id>downloadSources</id>
<properties>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
</properties>
</profile>
</profiles>
<activeProfiles>
<activeProfile>downloadSources</activeProfile>
</activeProfiles>
3：配置eclipse
Window > Preferences > Maven and checking the "Download Artifact Sources" and "Download Artifact JavaDoc" options
參考;
http://blog.csdn.net/topwqp/article/details/8902863
Maven編譯報錯 Unknown lifecycle phase "mvn" 解決辦法
[ERROR] Unknown lifecycle phase "mvn". You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [Help 1]
搜索到一個靠譜的回答：
如果是eclipse繼承環境，去掉mvn。
maven中下載jar包源碼和javadoc