6、install_jdk

#!/bin/bash
#[----------]
#--------------------------------------------------------------
#Author:                jackie
#QQ:                    985848343@qq.com
#Date:                  2021-03-18_17:23:54
#FileName:              install_jdk.sh
#URL:                   https://blog.csdn.net/weixin_50504879
#Description:           The test script
#Copyright (C):         2021-03-18 All rights reserved
#-------------------------------------------------------------

DIR=`pwd`
JDK_FILE="jdk-8u281-linux-x64.tar.gz"
TOMCAT_FILE="apache-tomcat-8.5.50.tar.gz"
JDK_DIR="/usr/local"
TOMCAT_DIR="/usr/local"


color () {
    RES_COL=60
    MOVE_TO_COL="echo -en \\033[${RES_COL}G"
    SETCOLOR_SUCCESS="echo -en \\033[1;32m"
    SETCOLOR_FAILURE="echo -en \\033[1;31m"
    SETCOLOR_WARNING="echo -en \\033[1;33m"
    SETCOLOR_NORMAL="echo -en \E[0m"
    echo -n "$2" && $MOVE_TO_COL
    echo -n "["
    if [ $1 = "success" -o $1 = "0" ] ;then
        ${SETCOLOR_SUCCESS}
        echo -n $"  OK  "    
    elif [ $1 = "failure" -o $1 = "1"  ] ;then
        ${SETCOLOR_FAILURE}
        echo -n $"FAILED"
    else
        ${SETCOLOR_WARNING}
        echo -n $"WARNING"
    fi
    ${SETCOLOR_NORMAL}
    echo -n "]"
    echo                                                                                                                              
}






install_jdk(){
if !  [  -f "$DIR/$JDK_FILE" ];then
	color 1  "$JDK_FILE 文件不存在" 
	exit; 
elif [ -d $JDK_DIR/jdk ];then
        color 1  "JDK 已经安装" 
	exit
else 
        [ -d "$JDK_DIR" ] || mkdir -pv $JDK_DIR
fi
tar xvf $DIR/$JDK_FILE  -C $JDK_DIR
cd  $JDK_DIR && ln -s jdk1.8.* jdk 

cat >  /etc/profile.d/jdk.sh <<EOF
export JAVA_HOME=$JDK_DIR/jdk
export JRE_HOME=\$JAVA_HOME/jre
export CLASSPATH=\$JAVA_HOME/lib/:\$JRE_HOME/lib/
export PATH=\$PATH:\$JAVA_HOME/bin
EOF
.  /etc/profile.d/jdk.sh
java -version && color 0 "JDK 安装完成" || { color 1  "JDK 安装失败"  ; exit; }

} 

install_jdk