windows+java程序SSH登录linux调用shell脚本

来源：互联网发布：java 泛型 t.class 编辑：程序博客网时间：2024/06/08 08:18

    最近在看项目代码，里面有些东西还是很不错的，写下来留个备案以供以后工作了能够重复利用。    shell脚本在生产上用的相当多，不管是shell脚本调java，还是shell脚本调用一些任务什么的都挺常见的，我们经常将之封装成一个工具类，    然后供全局传一些参数什么的调用，此处就不给封装源码了，给个最简单的例子能运行即可。    应该依赖的jar

        <dependency>            <groupId>com.boco</groupId>            <artifactId>orion-ssh2</artifactId>            <version>1.1</version>        </dependency>        <dependency>            <groupId>com.boco</groupId>            <artifactId>standard</artifactId>            <version>1.1</version>        </dependency>

要执行的一个十分简单的脚本![这里写图片描述](http://img.blog.csdn.net/20170731192518987?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQveHV4aWUxMw==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast)然后是执行的代码，代码是main方法调用的，为什么是main方法调用我就不解释了

package shellMonitor;import java.io.InputStream;import java.nio.charset.Charset;import com.trilead.ssh2.ChannelCondition;import com.trilead.ssh2.Connection;import com.trilead.ssh2.Session;import com.trilead.ssh2.StreamGobbler;public class ShellMonitorJob {    private static final long TIME_OUT = 0;    public static void main(String[] args) throws Exception {        InputStream stdOut = null;        InputStream stdErr = null;        String outStr = "";        String outErr = "";        int ret = -1;        String charset = Charset.defaultCharset().toString();        Connection conn = new Connection("此处应有ip");        conn.connect();        boolean authenticateWithPassword = conn.authenticateWithPassword("用户", "密码");        if (authenticateWithPassword) {            // Open a new {@link Session} on this connection            Session session = conn.openSession();            // Execute a command on the remote machine.            session.execCommand("sh /home/ljp/ljp.sh"); // 调用脚本            stdOut = new StreamGobbler(session.getStdout());            outStr = processStream(stdOut, charset);            stdErr = new StreamGobbler(session.getStderr());            outErr = processStream(stdErr, charset);            session.waitForCondition(ChannelCondition.EXIT_STATUS, TIME_OUT);            ret = session.getExitStatus();            System.out.println("outStr=" + outStr);            System.out.println("outErr=" + outErr);            System.out.println("ret=" + ret);            ret = session.getExitStatus();            if (conn != null) {                conn.close();            }            stdOut.close();            stdErr.close();        }    }    private static String processStream(InputStream in, String charset) throws Exception {        byte[] buf = new byte[1024];        StringBuilder sb = new StringBuilder();        while (in.read(buf) != -1) {            sb.append(new String(buf, charset));        }        return sb.toString();    }}

此处么有什么linux缓冲区阻塞问题，输出：

outStr=nihao nihao mohaooutErr=ret=0

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