先把命令行切換到Maven項目的根目錄，比如：/d/xxxwork/java/maven-test，然后執行命令：
mvn clean compile
執行結果如下：
[INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building rtp-front 1.0-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ rtp-front --- [INFO] Deleting D:\xxxwork\Java\maven-test\target [INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ rtp-front --- [WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent! [INFO] Copying 0 resource [INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ rtp-front --- [INFO] Changes detected - recompiling the module! [WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent! [INFO] Compiling 13 source files to D:\CtripWork\Java\maven-test\target\classes [WARNING] /D:/xxxwork/Java/maven-test/src/main/java/ReadOnly.java: 某些輸入文件使用了未經檢查或不安全的操作。 [WARNING] /D:/xxxwork/Java/maven-test/src/main/java/ReadOnly.java: 有關詳細信息, 請使用 -Xlint:unchecked 重新編譯。 [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 11.500 s [INFO] Finished at: 2016-11-14T15:15:13+08:00 [INFO] Final Memory: 13M/76M [INFO] ------------------------------------------------------------------------
執行順序：
1、使用清理插件：maven-clean-plugin:2.5執行清理刪除已有target目錄（版本2.5）；
2、使用資源插件：maven-resources-plugin:2.6執行資源文件的復制等（版本2.6）；
3、使用編譯插件：maven-compiler-plugin:3.1編譯所有源文件生成class文件至target\classes目錄下（版本3.1）；
4、整個編譯過程完成。