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1、常用命令
编译：mvn compile –src/main/java目录java源码编译生成class （target目录下）
测试：mvn test –src/test/java 目录编译
清理：mvn clean –删除target目录，也就是将class文件等删除
打包：mvn package –生成压缩文件：java项目#jar包；web项目#war包，也是放在target目录下
安装：mvn install –将压缩文件(jar或者war)上传到本地仓库
部署|发布：mvn deploy –将压缩文件上传私服
2、举例：
mvn -U clean install -Dmaven.test.skip=true
mvn clean package install -U -B -Dmaven.test.skip=true
mvn clean package install -U -B -DskipTests
3、参数说明：
usage: mvn [options] [<goal(s)>] [<phase(s)>] Options: -am,--also-make If project list is specified, also build projects required by the list -amd,--also-make-dependents If project list is specified, also build projects that depend on projects on the list -B,--batch-mode Run in non-interactive (batch) mode (disables output color) -b,--builder <arg> The id of the build strategy to use -C,--strict-checksums Fail the build if checksums don't match -c,--lax-checksums Warn if checksums don't match -cpu,--check-plugin-updates Ineffective, only kept for backward compatibility -D,--define <arg> Define a system property -e,--errors Produce execution error messages -emp,--encrypt-master-password <arg> Encrypt master security password -ep,--encrypt-password <arg> Encrypt server password -f,--file <arg> Force the use of an alternate POM file (or directory with pom.xml) -fae,--fail-at-end Only fail the build afterwards; allow all non-impacted builds to continue -ff,--fail-fast Stop at first failure in reactorized builds -fn,--fail-never NEVER fail the build, regardless of project result -gs,--global-settings <arg> Alternate path for the global settings file -gt,--global-toolchains <arg> Alternate path for the global toolchains file -h,--help Display help information -l,--log-file <arg> Log file where all build output will go (disables output color) -llr,--legacy-local-repository Use Maven 2 Legacy Local Repository behaviour, ie no use of _remote.repositories. Can also be activated by using -Dmaven.legacyLocalRepo=true -N,--non-recursive Do not recurse into sub-projects -npr,--no-plugin-registry Ineffective, only kept for backward compatibility -npu,--no-plugin-updates Ineffective, only kept for backward compatibility -nsu,--no-snapshot-updates Suppress SNAPSHOT updates -ntp,--no-transfer-progress Do not display transfer progress when downloading or uploading -o,--offline Work offline -P,--activate-profiles <arg> Comma-delimited list of profiles to activate -pl,--projects <arg> Comma-delimited list of specified reactor projects to build instead of all projects. A project can be specified by [groupId]:artifactId or by its relative path -q,--quiet Quiet output - only show errors -rf,--resume-from <arg> Resume reactor from specified project -s,--settings <arg> Alternate path for the user settings file -t,--toolchains <arg> Alternate path for the user toolchains file -T,--threads <arg> Thread count, for instance 2.0C where C is core multiplied -U,--update-snapshots Forces a check for missing releases and updated snapshots on remote repositories -up,--update-plugins Ineffective, only kept for backward compatibility -v,--version Display version information -V,--show-version Display version information WITHOUT stopping build -X,--debug Produce execution debug output
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