这两天在帮着将一些旧的工程迁入maven框架，其中有个jar包“aliyun-java-sdk-dysmsapi-1.0.0.jar”居然在maven官方库中找不到。
迫不得已，只好将旧工程中的jar包独立部署到私有库中。
开始执行：
mvn install:install-file -Dfile=aliyun-java-sdk-dysmsapi-1.0.0.jar -DgroupId=com.aliyun -DartifactId=aliyun-java-sdk-dysmsapi -Dversion=1.0.0 -Dpackaging=jar
结果噼里啪啦的蹦出错误：
[INFO] Scanning for projects... [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 0.070 s [INFO] Finished at: 2017-09-26T14:34:21+08:00 [INFO] Final Memory: 6M/245M [INFO] ------------------------------------------------------------------------ [ERROR] The goal you specified requires a project to execute but there is no POM in this directory (D:\Project\Java\web-knn\lib). Please verify you invoked Maven from the correct directory. -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MissingProjectException
言下之意是说该目录下缺乏POM文件啥的。但本来这个旧项目就是非maven框架的项目，何来的POM文件呢？
百思不得其解，找了一圈解决方案，包括试图在目录下建一个pom.xml都不行。
最后看到了这个贴：https://stackoverflow.com/questions/16348459/error-the-goal-you-specified-requires-a-project-to-execute-but-there-is-no-pom
才知道这里的一个坑：原来每个参数都需要使用双引号包裹起来...真是无语！
正确的指令应该是：
mvn install:install-file "-Dfile=.\aliyun-java-sdk-dysmsapi-1.0.0.jar" "-DgroupId=com.aliyun" "-DartifactId=aliyun-java-sdk-dysmsapi" "-Dversion=1.0.0" "-Dpackaging=jar"OK，执行成功！
[INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building Maven Stub Project (No POM) 1 [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-install-plugin:2.4:install-file (default-cli) @ standalone-pom --- [INFO] Installing D:\Project\Java\web-knn\lib\aliyun-java-sdk-dysmsapi-1.0.0.jar to C:\Users\DELL\.m2\repository\com\aliyun\aliyun-java-sdk-dysmsapi\1.0.0\aliyun-java-sdk-dysmsapi-1.0.0.jar [INFO] Installing C:\Users\DELL\AppData\Local\Temp\mvninstall2482964083783898455.pom to C:\Users\DELL\.m2\repository\com\aliyun\aliyun-java-sdk-dysmsapi\1.0.0\aliyun-java-sdk-dysmsapi-1.0.0.pom [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 0.489 s [INFO] Finished at: 2017-09-26T14:29:06+08:00 [INFO] Final Memory: 8M/245M [INFO] ------------------------------------------------------------------------