java远程linux的shell(精选)

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import java.io.BufferedReader;  import java.io.IOException;  import java.io.InputStream;  import java.io.InputStreamReader;  import java.io.UnsupportedEncodingException;  import org.apache.commons.lang.StringUtils;  import ch.ethz.ssh2.Connection;  import ch.ethz.ssh2.Session;  import ch.ethz.ssh2.StreamGobbler;    /**  * 远程执行linux的shell script  * @author Ickes  * @since  V0.1  */  public class RemoteExecuteCommand {      //字符编码默认是utf-8      private static String  DEFAULTCHART="UTF-8";      private Connection conn;      private String ip;      private String userName;      private String userPwd;            public RemoteExecuteCommand(String ip, String userName, String userPwd) {          this.ip = ip;          this.userName = userName;          this.userPwd = userPwd;      }                  public RemoteExecuteCommand() {                }            /**      * 远程登录linux的主机      * @author Ickes      * @since  V0.1      * @return      *      登录成功返回true，否则返回false      */      public Boolean login(){          boolean flg=false;          try {              conn = new Connection(ip);              conn.connect();//连接              flg=conn.authenticateWithPassword(userName, userPwd);//认证          } catch (IOException e) {              e.printStackTrace();          }          return flg;      }      /**      * @author Ickes      * 远程执行shll脚本或者命令      * @param cmd      *      即将执行的命令      * @return      *      命令执行完后返回的结果值      * @since V0.1      */      public String execute(String cmd){          String result="";          try {              if(login()){                  Session session= conn.openSession();//打开一个会话                  session.execCommand(cmd);//执行命令                  result=processStdout(session.getStdout(),DEFAULTCHART);                  //如果为得到标准输出为空，说明脚本执行出错了                  if(StringUtils.isBlank(result)){                      result=processStdout(session.getStderr(),DEFAULTCHART);                  }                  conn.close();                  session.close();              }          } catch (IOException e) {              e.printStackTrace();          }          return result;      }                  /**      * @author Ickes      * 远程执行shll脚本或者命令      * @param cmd      *      即将执行的命令      * @return      *      命令执行成功后返回的结果值，如果命令执行失败，返回空字符串，不是null      * @since V0.1      */      public String executeSuccess(String cmd){          String result="";          try {              if(login()){                  Session session= conn.openSession();//打开一个会话                  session.execCommand(cmd);//执行命令                  result=processStdout(session.getStdout(),DEFAULTCHART);                  conn.close();                  session.close();              }          } catch (IOException e) {              e.printStackTrace();          }          return result;      }           /**     * 解析脚本执行返回的结果集     * @author Ickes     * @param in 输入流对象     * @param charset 编码     * @since V0.1     * @return     *       以纯文本的格式返回     */      private String processStdout(InputStream in, String charset){          InputStream    stdout = new StreamGobbler(in);          StringBuffer buffer = new StringBuffer();;          try {              BufferedReader br = new BufferedReader(new InputStreamReader(stdout,charset));              String line=null;              while((line=br.readLine()) != null){                  buffer.append(line+"\n");              }          } catch (UnsupportedEncodingException e) {              e.printStackTrace();          } catch (IOException e) {              e.printStackTrace();          }          return buffer.toString();      }            public static void setCharset(String charset) {          DEFAULTCHART = charset;      }      public Connection getConn() {          return conn;      }      public void setConn(Connection conn) {          this.conn = conn;      }      public String getIp() {          return ip;      }      public void setIp(String ip) {          this.ip = ip;      }      public String getUserName() {          return userName;      }      public void setUserName(String userName) {          this.userName = userName;      }      public String getUserPwd() {          return userPwd;      }      public void setUserPwd(String userPwd) {          this.userPwd = userPwd;      }  }
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