背景：
使用的是 Deepin 20.8 操作系统，JDK8环境，配置 Scala 开发环境报错：java.lang.NumberFormatException: For input string: “0x100”
1、详细报错如下：
root@localhost ~
Welcome to Scala 2.11.11 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_212).
Type in expressions for evaluation. Or try :help.
[ERROR] Failed to construct terminal; falling back to unsupported
java.lang.NumberFormatException: For input string: "0x100"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:580)
at java.lang.Integer.valueOf(Integer.java:766)
at jline.internal.InfoCmp.parseInfoCmp(InfoCmp.java:59)
at jline.UnixTerminal.parseInfoCmp(UnixTerminal.java:242)
at jline.UnixTerminal.<init>(UnixTerminal.java:65)
at jline.UnixTerminal.<init>(UnixTerminal.java:50)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at java.lang.Class.newInstance(Class.java:442)
at jline.TerminalFactory.getFlavor(TerminalFactory.java:211)
at jline.TerminalFactory.create(TerminalFactory.java:102)
at jline.TerminalFactory.get(TerminalFactory.java:186)
at jline.TerminalFactory.get(TerminalFactory.java:192)
at jline.console.ConsoleReader.<init>(ConsoleReader.java:243)
at jline.console.ConsoleReader.<init>(ConsoleReader.java:235)
at jline.console.ConsoleReader.<init>(ConsoleReader.java:223)
at scala.tools.nsc.interpreter.jline.JLineConsoleReader.<init>(JLineReader.scala:64)
at scala.tools.nsc.interpreter.jline.InteractiveReader.<init>(JLineReader.scala:33)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at scala.tools.nsc.interpreter.ILoop$$anonfun$scala$tools$nsc$interpreter$ILoop$$instantiater$1$1.apply(ILoop.scala:858)
at scala.tools.nsc.interpreter.ILoop$$anonfun$scala$tools$nsc$interpreter$ILoop$$instantiater$1$1.apply(ILoop.scala:855)
at scala.tools.nsc.interpreter.ILoop.scala$tools$nsc$interpreter$ILoop$$mkReader$1(ILoop.scala:862)
at scala.tools.nsc.interpreter.ILoop$$anonfun$22$$anonfun$apply$10.apply(ILoop.scala:873)
at scala.tools.nsc.interpreter.ILoop$$anonfun$22$$anonfun$apply$10.apply(ILoop.scala:873)
at scala.util.Try$.apply(Try.scala:192)
at scala.tools.nsc.interpreter.ILoop$$anonfun$22.apply(ILoop.scala:873)
at scala.tools.nsc.interpreter.ILoop$$anonfun$22.apply(ILoop.scala:873)
at scala.collection.immutable.Stream.map(Stream.scala:418)
at scala.tools.nsc.interpreter.ILoop.chooseReader(ILoop.scala:873)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1$$anonfun$newReader$1$1.apply(ILoop.scala:893)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.newReader$1(ILoop.scala:893)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.scala$tools$nsc$interpreter$ILoop$$anonfun$$preLoop$1(ILoop.scala:897)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1$$anonfun$startup$1$1.apply(ILoop.scala:964)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:990)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:891)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:891)
at scala.reflect.internal.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:97)
at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:891)
at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:74)
at scala.tools.nsc.MainGenericRunner.run$1(MainGenericRunner.scala:87)
at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:98)
at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:103)
at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)
scala>
2、解决方式：
在环境变量配置文件中添加这一行
export TERM=xterm-color
3、解决记录：
3.1 root用户操作
vim /etc/profile.d/my_env.sh
# JAVA_ENV
export JAVA_HOME=/opt/module/jdk1.8.0_212
export PATH=$PATH:$JAVA_HOME/bin
# MAVEN_HOME
export MAVEN_HOME=/opt/module/apache-maven-3.6.3
export PATH=$PATH:$MAVEN_HOME/bin
# SCALA_HOME
export SCALA_HOME=/opt/module/scala-2.11.11
export PATH=$PATH:$SCALA_HOME/bin
# To solve this issue as follows:
# java.lang.NumberFormatException: For input string: "0x100"
export TERM=xterm-color
source /etc/profile.d/my_env.sh
3.2 普通用户操作
vim ~/.bashrc
# JAVA_ENV
export JAVA_HOME=/opt/module/jdk1.8.0_212
export PATH=$PATH:$JAVA_HOME/bin
# MAVEN_HOME
export MAVEN_HOME=/opt/module/apache-maven-3.6.3
export PATH=$PATH:$MAVEN_HOME/bin
# SCALA_HOME
export SCALA_HOME=/opt/module/scala-2.11.11
export PATH=$PATH:$SCALA_HOME/bin
# To solve this issue as follows:
# java.lang.NumberFormatException: For input string: "0x100"
export TERM=xterm-color
source ~/.bashrc
我们下期见，拜拜！
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