Oracle不允许直接从他们的服务器下载jdk，看这里[http://www.oracle.com/technetwork/java/javase/terms/license/index.html]
所以如果你尝试这样：
wget "http://download.oracle.com/otn-pub/java/jdk/7u4-b20/jdk-7u4-linux-x64.tar.gz"你将得到一个许可条款的页面，幸运的是,你需要一个cookie可以绕过这个：
Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie所以,如果你想下载64位的Linux(例如jdk7u4使用wget,Ubuntu),您可以使用:
wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u60-b27/jdk-8u60-linux-x64.tar.gz"仅供参考,以下是JDK8的下载项目，其他的可以在oracle官网找到
###JDK 8u60
#!/bin/bash# jdk install# 请将下载的jdk-xxx-linux-xxx.tar.gz包与此脚本放置到同一目录# 授予此脚本可执行权限(chmod +x install_jdk.sh)# 在终端执行此脚本开始安装(./文件名)# 注意：不可有多个版本的jdk包！# 为了使配置的环境变量生效，安装完成后你应该重新登陆。echo "Please select you want to install the JDK version?"select jdk_version in "JDK1.7" "JDK1.8" ; do break;donejvmpath=/usr/local/java/# 不存在if [ ! -d "$jvmpath" ]; then echo "正在创建$jvmpath目录" sudo mkdir $jvmpath echo "目录$jvmpath创建成功"fijdkfile=$(ls | grep jdk-*-linux-*.gz)jdkdirname=""if [ "$jdk_version" = "JDK1.7" ]; then jdkdirname="jdk1.7.0_75"else jdkdirname="jdk1.8.0_20"fios_version=`uname -a`echo $os_versionarchitecture="64"echo "$os_version" | grep -q "$architecture"if [ $? -eq 0 ]then echo "您正在使用64位操作系统，为您选择64位JDK" # 不存在即去外网下载jdk文件 if [ ! -f "$jdkfile" ]; then if [ "$jdk_version" = "JDK1.7" ]; then wget http://7vil1r.com1.z0.glb.clouddn.com/jdk-7u75-linux-x64.tar.gz else wget http://7vil1r.com1.z0.glb.clouddn.com/jdk-8u20-linux-x64.gz fi fi #sudo chown -R jiangxin:jiangxin /usr/lib/jvm/jdk1.7.0_75else echo "您正在使用32位操作系统，为您选择32位JDK" # 不存在即去外网下载jdk文件 if [ ! -f "$jdkfile" ]; then if [ "$jdk_version" = "JDK1.7" ]; then wget http://7vil1r.com1.z0.glb.clouddn.com/jdk-7u75-linux-i586.gz else wget http://7vil1r.com1.z0.glb.clouddn.com/jdk-8u20-linux-i586.gz fi fifijdkfile=$(ls | grep jdk-*-linux-*.gz)if [ -f "$jdkfile" ]; then sudo tar -zxvf $jdkfile -C /usr/local/java/ echo "安装JDK成功" echo "配置环境变量" # touch environment # echo "PATH=\"$PATH:/usr/lib/jvm/$jdkdirname/bin\"" >> environment # echo "JAVA_HOME=/usr/lib/jvm/$jdkdirname" >> environment # echo "CLASSPATH=.:%JAVA_HOME%/lib/dt.jar:%JAVA_HOME%/lib/tools.jar" >> environment # sudo mv /etc/environment /etc/environment.backup.java # sudo mv environment /etc # source /etc/environment mv ~/.bashrc ~/.bashrc.backup.java cat ~/.bashrc.backup.java >> ~/.bashrc echo "PATH=\"$PATH:$jvmpath/$jdkdirname/bin\"" >> ~/.bashrc echo "JAVA_HOME=$jvmpath/$jdkdirname" >> ~/.bashrc echo "CLASSPATH=.:%JAVA_HOME%/lib/dt.jar:%JAVA_HOME%/lib/tools.jar" >> ~/.bashrc source ~/.bashrc echo "配置环境成功" # 如果有多个java版本需要进行以下配置（包括openjdk） echo "设置默认jdk" sudo update-alternatives --install /usr/bin/java java $jvmpath/$jdkdirname/bin/java 300 sudo update-alternatives --install /usr/bin/javac javac $jvmpath/$jdkdirname/bin/javac 300 sudo update-alternatives --config java # echo "设置默认jdk成功" echo "测试是否安装成功" java -version echo "安装成功"fi以上脚本中下载JDK的方式根据自己需求修改即可。
#!/bin/bashecho "正在删除相关文件"sudo rm -rf /usr/local/java/waitecho "删除相关文件成功"echo "恢复配置文件"# sudo rm -f /etc/environment# sudo mv /etc/environment.backup.java /etc/environmentsudo rm /usr/bin/java /usr/bin/javacsudo rm /etc/alternatives/java /etc/alternatives/javacmv ~/.bashrc.backup.java ~/.bashrcecho "恢复配置文件成功"#!/bin/bashecho "Please select you want to install the Tomcat version?"select tomcat_version in "Tomcat7x" "Tomcat8x" ; do break;donetomcatpath=/usr/local/webserver/# 不存在if [ ! -d "$tomcatpath" ]; then echo "正在创建$tomcatpath目录" sudo mkdir $tomcatpath echo "目录$tomcatpath创建成功"fitomcatfile=$(ls | grep apache-tomcat-*.gz)tomcatname=""if [ "$tomcat_version" = "Tomcat7x" ]; then tomcatname="tomcat7"else tomcatname="tomcat8"fi# 不存在即去外网下载jdk文件if [ ! -f "$tomcatfile" ]; then if [ "$tomcat_version" = "Tomcat7x" ]; then wget http://apache.cs.utah.edu/tomcat/tomcat-7/v7.0.63/bin/apache-tomcat-7.0.63.tar.gz else wget http://mirror.tcpdiag.net/apache/tomcat/tomcat-8/v8.0.23/bin/apache-tomcat-8.0.23.tar.gz fifi tomcatfile=$(ls | grep apache-tomcat-*.gz)if [ -f "$tomcatfile" ]; then sudo tar -zxvf $tomcatfile -C $tomcatpath sudo mv $tomcatpath$tomcatfile $tomcatname echo "安装Tomcat成功" echo "配置环境变量" mv ~/.bashrc ~/.bashrc.backup.tomcat cat ~/.bashrc.backup.tomcat >> ~/.bashrc #echo "PATH=\"$PATH:$tomcatpath$tomcatname\"" >> ~/.bashrc echo "TOMCAT_HOME=$tomcatpath$tomcatname" >> ~/.bashrc echo "CATALINA_HOME=$tomcatpath$tomcatname" >> ~/.bashrc echo "export PATH=\"$PATH:$tomcatpath$tomcatname\"" >> ~/.bashrc source ~/.bashrc echo "配置环境成功" echo "安装成功"fi#!/bin/bashecho "正在删除相关文件"sudo rm -rf /usr/local/webserver/waitecho "删除相关文件成功"echo "恢复配置文件"mv ~/.bashrc.backup.tomcat ~/.bashrcecho "恢复配置文件成功"我的github地址：http://github.com/biezhi
开源框架Blade：http://github.com/biezhi/blade
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