Shell执行/调用Java/Jar程序例子

（转）http://guoyunsky.iteye.com/blog/1401757
最近要写一个独立的Java程序去监控Hadoop和Oozie,通过Shell去调用.写代码到现在也4年多了,貌似就从来没在生产环境中写过一个独立的Java程序,不是部署到Tomcat就是直接丢给Hadoop.于是参考Hadoop等开源环境,自己写了一个demo,并且可以通过Ant打包生成可运行的程序.所以这里有三步:Java程序,Shell,Ant

     1.首先建立Java程序,由于是例子,所以这里很简单,只是输出传入参数的个数,代码如下:
Java代码  收藏代码

    package com.guoyun.study.shell; 
     
    public class ShellJavaAnt { 
     
        /**
         * @param args
         */ 
        public static void main(String[] args) { 
            System.out.println("arguments length:"+args.length); 
        } 
     
    } 



    2.Shell脚本
Shell代码  收藏代码

    #!/bin/bash 
    # 
    PRG="${0}" 
    while [ -h "${PRG}" ]; do 
      ls=`ls -ld "${PRG}"` 
      link=`expr "$ls" : '.*-> \(.*\)$'` 
      if expr "$link" : '/.*' > /dev/null; then 
        PRG="$link" 
      else 
        PRG=`dirname "${PRG}"`/"$link" 
      fi 
    done 
     
    BASEDIR=`dirname ${PRG}` 
    BASEDIR=`cd ${BASEDIR}/..;pwd` 
     
     
    if test -z ${JAVA_HOME} 
    then 
        JAVA_BIN=java 
    else 
        JAVA_BIN=${JAVA_HOME}/bin/java 
    fi 
     
    CLASS_PATH=$BASEDIR/shell-run-java-by-ant-*.jar 
    SERVICE_CLASS="com.guoyun.study.shell.ShellJavaAnt" 
     
    ${JAVA_BIN} -cp $CLASS_PATH ${SERVICE_CLASS} "${@}" 
     
    exit 0 



   3.ANT
Xml代码  收藏代码

    <project name="shell-run-java-by-ant" default="release-jar" basedir="."> 
     
      <property file="build.properties" /> 
         
      <property name="jar.name" value="shell-run-java-by-ant" /> 
      <property name="version" value="0.1" /> 
      <property name="package.name"  value="${jar.name}-${version}" /> 
     
      <property name="build.dir" location="build" /> 
      <property name="build.cache.dir" location="${build.dir}/cache" /> 
      <property name="build.lib.dir" location="${build.dir}/lib" /> 
      <property name="javadoc.dir" location="javadoc" /> 
      <property name="dist.dir"  location="dist" /> 
      <property name="dist.java.dir"  location="${dist.jar}/java" /> 
      <property name="package.dir"  location="${dist.dir}/${package.name}" /> 
      <property name="tar.file" location="${dist.dir}/${jar.name}-${version}.tar.gz" /> 
     
     
      <property name="src.dir" location="src" /> 
      <property name="java.src.dir" location="${src.dir}/java" /> 
      <property name="test.src.dir" location="${src.dir}/test" />   
      <property name="classes.dir" location="${build.dir}/classes" /> 
      <property name="lib.dir" value="${basedir}/lib"/> 
      <property name="script.dir" value="${basedir}/script"/> 
     
     
      <target name="release" description="sets properties for release builds."> 
            <echo message="Building in release mode..."/> 
            <property name="compile.mode" value="release"/> 
            <property name="java.debug" value="false"/> 
      </target> 
     
      <target name="init"> 
        <tstamp/> 
        <mkdir dir="${build.dir}" /> 
        <mkdir dir="${classes.dir}" /> 
      </target> 
     
      <macrodef name="compile-source"> 
       <sequential> 
        <javac srcdir="${java.src.dir}" destdir="${classes.dir}" debug="${java.debug}" debuglevel="lines,vars,source"> 
          <classpath> 
            <fileset dir="lib"> 
              <include name="**/*.jar"/> 
            </fileset> 
          </classpath> 
        </javac> 
       </sequential> 
      </macrodef> 
     
      <target name="compile" depends="init" description="compile the source"> 
        <compile-source /> 
      </target> 
     
       
      <target name="jar" depends="compile"> 
        <delete file="${build.dir}/${jar.name}-${version}.jar"/> 
        <jar jarfile="${build.dir}/${jar.name}-${version}.jar"> 
          <fileset dir="${classes.dir}"/> 
        </jar> 
      </target> 
         
      <target name="package" depends="clean, jar"> 
        <mkdir dir="${package.dir}"/> 
        <mkdir dir="${package.dir}/lib"/> 
        <mkdir dir="${package.dir}/bin" /> 
     
        <copy todir="${package.dir}/lib" includeEmptyDirs="false"> 
          <fileset dir="${lib.dir}"> 
            <include name="**/*" /> 
          </fileset> 
        </copy> 
        <copy todir="${package.dir}"> 
          <fileset file="${build.dir}/${jar.name}-${version}.jar"/> 
        </copy> 
        <copy todir="${package.dir}/" file="build.xml"/> 
        <copy todir="${package.dir}/bin" includeEmptyDirs="false"> 
                <fileset dir="${basedir}/script/shell"> 
                    <include name="**/*" /> 
                </fileset> 
        </copy> 
         
        <chmod file="${package.dir}/bin/*" perm="ugo+rx"/> 
      </target> 
     
      <target name="tar" depends="package" description="Create release tarball"> 
        <tar compression="gzip" longfile="gnu" destfile="${tar.file}"> 
          <tarfileset dir="${package.dir}" mode="777" prefix="${package.name}"> 
            <exclude name="bin/*" /> 
            <exclude name="**/*.sh" /> 
            <include name="**" /> 
          </tarfileset> 
          <tarfileset dir="${package.dir}" mode="777" prefix="${package.name}"> 
            <include name="**/*.sh" /> 
          </tarfileset> 
        </tar> 
        <delete dir="${package.dir}" /> 
      </target> 
       
      <target name="javadoc" depends="compile" description="generate documentation" > 
        <delete dir="${javadoc.dir}" /> 
        <javadoc destdir="${javadoc.dir}"> 
          <fileset dir="${java.src.dir}" /> 
          <classpath> 
            <fileset dir="${lib.dir}"> 
              <include name="**/*.jar"/> 
            </fileset> 
          </classpath> 
        </javadoc> 
      </target> 
     
      <target name="release-jar" description="Build release and jar" depends="release,jar"/> 
     
      <target name="clean"  description="clean up"> 
        <delete dir="${build.dir}"/> 
        <delete dir="${classes.dir}" /> 
        <delete dir="${dist.dir}"/> 
      </target> 
     
    </project> 



   由于比较简单,这里就不多做注释,完整例子,请见附件.使用的话,只要进入你的工程,运行ant package,便会将程序打包到$YOUR_PROJECT/dist目录下.之后进入该程序运行bin/shell-java-ant  a b c d e f g,就会得到arguments length:7
这样子的输出.