小编Dee*_*dey的帖子

object Main {

  def main(args: Array[String])
  {
    val x = 10
    print(x="Hello World")
    print(x)
  }
}

输出:Hello World10

我们知道,在Scala val中,无法重新分配或更改,但这里x正在改变

你好,世界

打印时.

最近，我们从apache-tomcat-7.0.76-x64升级到apache-tomcat-8.5.15-x64安装是Windows上的标准安装，我们放在libs中的其他jar是：

1. axis.jar-Apache可扩展交互系统，基于XML的Web服务框架
2. commons-logging-api-1.1.1.jar-用于记录
3. jtds-1.2.2.jar-用于Microsoft SQL Server的JDBC 3.0驱动程序
4. ojdbc6.jar-Oracle驱动程序数据库
5. xercesImpl.jar-用于xml解析
6. xml-apis.jar-用于xml解析

下面是我启动tomcat时看到的错误

19-Jul-2017 19:23:22.146 WARNING [localhost-startStop-1] org.apache.tomcat.util.scan.StandardJarScanner.scan Failed to scan [file:/D:/Compass8.8/apache-tomcat-8.5.15-x64-Compass881-18080/lib/jcifs.jar] from classloader hierarchy
 java.io.FileNotFoundException: D:\Compass8.8\apache-tomcat-8.5.15-x64-Compass881-18080\lib\jcifs.jar (The system cannot find the file specified)
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:219)
    at java.util.zip.ZipFile.<init>(ZipFile.java:149)
    at java.util.jar.JarFile.<init>(JarFile.java:166)
    at java.util.jar.JarFile.<init>(JarFile.java:130)
    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60)
    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:49)
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:338)
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:288)
    at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262)
    at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:104)
    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:101)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5196)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1107)
    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1841)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at …