1.问题一:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.3:compile (default-compile) on project jeeplus: 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

解决办法

改为jdk 的目录

问题二:

2018-11-01 18:18:30,456 WARN  [alibaba.druid.pool.vendor.MySqlValidConnectionChecker] - Cannot resolve com.mysq.jdbc.Connection.ping method.  Will use 'SELECT 1' instead.
java.lang.NullPointerException
      ***太多省略***    
2018-11-01 18:18:35,015 DEBUG [jeeplus.modules.act.rest.DispatcherServletConfiguration] - Creating requestMappingHandlerMapping
2018-11-01 18:18:35,037 DEBUG [jeeplus.modules.act.rest.DispatcherServletConfiguration] - Configuring localeChangeInterceptor
十一月 01, 2018 6:18:40 下午 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring FrameworkServlet 'RestServlet'
十一月 01, 2018 6:18:40 下午 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring FrameworkServlet 'ModelRestServlet'
十一月 01, 2018 6:18:41 下午 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring FrameworkServlet 'springServlet'

原因

• 启动项目的时候，报了这个错误com.alibaba.druid.pool.vendor.MySqlValidConnectionChecker - Cannot resolve com.mysq.jdbc.Connection.ping method. Will use 'SELECT 1' instead.，后面修改了jbdc和druid的依赖，把druid的依赖修改成最新的版本。即可启动成功。

解决办法

pom.xml

<druid.version>1.0.11</druid.version>

修改为

<druid.version>1.1.11</druid.version>

问题三

报错

***省略***
Caused by: java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at redis.clients.jedis.Connection.connect(Connection.java:184)
    ... 81 more

原因

端口占用

解决办法

更改设置
pom.xml

        <!-- environment setting -->
        <jdk.version>1.8</jdk.version>
        <tomcat.version>2.2</tomcat.version>
        <jetty.version>7.6.14.v20131031</jetty.version>
        <webserver.port>8080</webserver.port>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <downloadSources>true</downloadSources>

问题四

***省略****
Caused by: redis.clients.jedis.exceptions.JedisConnectionException: java.net.ConnectException: Connection refused: connect
    at redis.clients.jedis.Connection.connect(Connection.java:207)
    at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:93)
    at redis.clients.jedis.BinaryJedis.connect(BinaryJedis.java:1767)
    at redis.clients.jedis.JedisFactory.makeObject(JedisFactory.java:106)
    at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:868)
    at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:458)
    at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:363)
    at redis.clients.util.Pool.getResource(Pool.java:49)
    ... 74 more
Caused by: java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at redis.clients.jedis.Connection.connect(Connection.java:184)
    ... 81 more

原因

没有启动redis

解决方法

启动redis