1：下载安装JDK，配置好环境变量（JAVA_HOME等）
下载linux下64位的jdk-7u45-linux-x64.tar.gz（百度网盘下载，官网的jdk-7u51-linux-x64.tar.gz总是下载失败），上传到/tmp目录下。
cd /opt/app/jdk/64/
tar -zxvf jdk-7u45-linux-x64.tar.gz -C /opt/app/jdk/64/
修改`/.bash_profile
export JAVA_HOME=/opt/app/jdk/64/jdk1.7.0_45
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
执行 source ~/.bash_profile
使配置文件立即生效。
验证安装成功可执行echo $JAVA_HOME
java -version
2：Maven安装。
（1）maven官网下载apache-maven-3.1.1-bin.tar.gz，上传到linux服务器的/opt/tmp目录下。
（2)建立/opt/app/maven目录
(3)安装maven,其实就是解压缩到目录
cd /tmp
tar -zxvf apache-maven-3.1.1-bin.tar.gz -C /opt/app/maven/
hotel用户下配置环境变量，编辑.bash_profile文件，添加如下代码
export MAVEN_HOME=/opt/app/maven/apache-maven-3.1.1
export PATH=${PATH}:${MAVEN_HOME}/bin
执行
source ~/.bash_profile
使配置文件立即生效。
验证安装成功可执行mvn -version
3:nexus的安装
下载nexus-2.7.2-03-bundle.tar.gz
建立/opt/app/nexus目录
cd /tmp
tar -zxvf nexus-2.7.2-03-bundle.tar.gz -C /opt/app/nexus/
cd /opt/app/nexus/nexus-2.7.2-03/bin/
执行./nexus start，在日志文件中/opt/app/nexus/nexus-2.7.2-03/logs/wrapper.log发现错误
wrapper | --> Wrapper Started as Daemon
wrapper | Launching a JVM...
jvm 1 | Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org
jvm 1 | Copyright 1999-2006 Tanuki Software, Inc. All Rights Reserved.
jvm 1 |
jvm 1 | Java HotSpot(TM) Client VM warning: You have loaded library /opt/app/nexus/nexus-2.7.2-03/bin/jsw/lib/libwrapper-linux-x86-32.so which might have disabled stack guard. The VM will try to fix the stack guard now.
jvm 1 | It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'.
jvm 1 |
jvm 1 | WARNING - Unable to load the Wrapper's native library 'libwrapper-linux-x86-32.so'.
jvm 1 | The file is located on the path at the following location but
jvm 1 | could not be loaded:
jvm 1 | /opt/app/nexus/nexus-2.7.2-03/bin/jsw/lib/libwrapper-linux-x86-32.so
jvm 1 | Please verify that the file is readable by the current user
jvm 1 | and that the file has not been corrupted in any way.
jvm 1 | One common cause of this problem is running a 32-bit version
jvm 1 | of the Wrapper with a 64-bit version of Java, or vica versa.
jvm 1 | This is a 32-bit JVM.
jvm 1 | Reported cause:
jvm 1 | /opt/app/nexus/nexus-2.7.2-03/bin/jsw/lib/libwrapper-linux-x86-32.so: /opt/app/nexus/nexus-2.7.2-03/bin/jsw/lib/libwrapper-linux-x86-32.so: cannot restore segment prot after reloc: 权限不够 jvm 1 | System signals will not be handled correctly.
jvm 1 |
jvm 1 | 2014-04-08 17:52:58 INFO [WrapperListener_start_runner] - org.sonatype.nexus.bootstrap.jsw.JswLauncher - Starting with arguments: [./conf/jetty.xml]
jvm 1 | 2014-04-08 17:52:58 ERROR [WrapperListener_start_runner] - org.sonatype.nexus.bootstrap.jsw.JswLauncher - Failed to start
jvm 1 | java.lang.NullPointerException: null
jvm 1 | at org.sonatype.nexus.bootstrap.jsw.JswLauncher.doStart(JswLauncher.java:53) ~[nexus-bootstrap-2.7.2-03.jar:2.7.2-03]
jvm 1 | at org.sonatype.nexus.bootstrap.jsw.WrapperListenerSupport.start(WrapperListenerSupport.java:37) ~[nexus-bootstrap-2.7.2-03.jar:2.7.2-03]
jvm 1 | at org.tanukisoftware.wrapper.WrapperManager$12.run(WrapperManager.java:2788) [wrapper-3.2.3.jar:3.2.3]
wrapper | <-- Wrapper Stopped
root用户下
/etc/selinux/config SELINUX=enforcing 改成 SELINUX=disabled
hotel用户执行
chcon -t texrel_shlib_t /opt/app/nexus/nexus-2.7.2-03/bin/jsw/lib/libwrapper-linux-x86-32.so
./nexus start
验证启动是否成功：
lsof -i:8081
访问地址：
http://172.22.15.113:8081/nexus
admin /admin123
修改端口号
/opt/app/nexus/nexus-2.7.2-03/conf/nexus.properties
application-port=8081改成
application-port=9002
./nexus stop
./nexus start