Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.5.1:compile (default-compile

问题描述：

使用Maven构建项目失败。错误日志如下：

[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] D:\WorkSpaces\Items\tyrone-security\src\main\java\cn\tyrone\security\sys\controller\SysController.java:[3,25] 错误: 程序包javax.servlet.http不存在
[ERROR] D:\WorkSpaces\Items\tyrone-security\src\main\java\cn\tyrone\security\sys\controller\SysController.java:[15,21] 错误: 找不到符号
[INFO] 2 errors 
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.375s
[INFO] Finished at: Mon Apr 18 11:42:16 CST 2016
[INFO] Final Memory: 11M/28M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.5.1:compile (default-compile) on project tyrone-security: Compilation failure: Compilation failure:
[ERROR] D:\WorkSpaces\Items\tyrone-security\src\main\java\cn\tyrone\security\sys\controller\SysController.java:[3,25] 错误: 程序包javax.servlet.http不存在
[ERROR] D:\WorkSpaces\Items\tyrone-security\src\main\java\cn\tyrone\security\sys\controller\SysController.java:[15,21] 错误: 找不到符号
[ERROR] -> [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/MojoFailureException

截图如下：

错误分析：

该问题是由于maven在打包的并没有把tomcat中Servlet的api给打包，所以出现这样的问题。

解决方案：

1. 在pom.xml中添加servlet依赖：

<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>3.0-alpha-1</version>
</dependency>