========================================================第一部分=============================================================
第一部分：使用maven项目中自带的插件，将maven的web项目打包成war包
使用的项目是上一章中的maven项目，原封不动
看一下pom.xml文件
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.sxd.springBootExample</groupId>
<artifactId>firstSpringBootExample</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<build>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<version>3.0</version>
</configuration>
</plugin>
</plugins>
</build> <!-- 引入parent项目，其实就是一个项目jar,版本自己在http://mvnrepository.com/search?q=spring-boot-starter-parent 选择即可 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.7.RELEASE</version>
</parent> <!-- 要跑起来一个web项目，就引入这一个jar即可，版本不用写，parent中已经声明了的 -->
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies> </project>
1.右键项目--->Debugs As--->Debugs Configurations
2.跟着步骤走
3.报错啦：
No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK
[INFO] Scanning for projects...
[INFO]
[INFO] Using the builder org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder with a thread count of 1
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building firstSpringBootExample 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.6.1:clean (default-clean) @ firstSpringBootExample ---
[INFO] Deleting D:\workspace2\firstSpringBootExample\target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ firstSpringBootExample ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ firstSpringBootExample ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to D:\workspace2\firstSpringBootExample\target\classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.398 s
[INFO] Finished at: 2017-10-01T17:41:26+08:00
[INFO] Final Memory: 13M/232M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project firstSpringBootExample: Compilation failure
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[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
解决方法：http://www.cnblogs.com/sxdcgaq8080/p/7617542.html
4.解决错误之后，重新进行打包操作
5.执行之后结果如下：
=====================================================第二部分=========================================================
第二部分，使用springBoot提供的插件，将项目打包为jar包