Java——ping & telnet实现

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ping & telnet 实现类：

import org.springframework.data.web.JsonPath;

import java.io.IOException;

import java.net.*;

public class PTUtil {

    /***

     *  ping操作

     * @param hostname

     * @param timeout in milliseconds

     * @return

     */

    public static JsonResult pingResult(String hostname,Integer timeout){

        JsonResult jsonResult = new JsonResult();

        try {

            InetAddress address = InetAddress.getByName(hostname);

            boolean flag = address.isReachable(timeout);

            if(flag){

                jsonResult.setMessage("ping结果:the address is reachable.");

            }else{

                jsonResult.setCode(Constants.ResultCode.EXCEPTION);

                jsonResult.setMessage("ping结果:the address is unreachable.");

            }

        } catch (UnknownHostException e) {

            jsonResult.setCode(Constants.ResultCode.EXCEPTION);

            jsonResult.setMessage("ping结果:UnknownHostException:"+e.getMessage());

        } catch (IOException e) {

            jsonResult.setCode(Constants.ResultCode.EXCEPTION);

            jsonResult.setMessage("ping结果:IOException:"+e.getMessage());

        }

        return jsonResult;

    }

    /***

     *  telnet 操作

     * @param hostname

     * @param timeout in milliseconds

     * @return

     */

    public static JsonResult telnetResult(String hostname,Integer port,Integer timeout){

        JsonResult jsonResult = new JsonResult();

        try {

            Socket server = new Socket();

            InetSocketAddress address = new InetSocketAddress(hostname,port);

            server.connect(address, timeout);

            server.close();

            jsonResult.setMessage("telnet结果:success!");

        }catch (UnknownHostException e) {

            jsonResult.setCode(Constants.ResultCode.EXCEPTION);

            jsonResult.setMessage("telnet结果:UnknownHostException:"+e.getMessage());

        } catch (IOException e) {

            jsonResult.setCode(Constants.ResultCode.EXCEPTION);

            jsonResult.setMessage("telnet结果:IOException:"+e.getMessage());

        }

        return jsonResult;

    }

}

相关类：

public class JsonResult {

    private String code;//结果编码

    private String message;//结果描述

    private Object data;

    public JsonResult() {

        this.setCode(Constants.ResultCode.SUCCESS);

        this.setMessage(Constants.ResultCode.SUCCESS.msg());

    }

    public JsonResult(Constants.ResultCode code) {

        this.setCode(code);

        this.setMessage(code.msg());

    }

    public JsonResult(Constants.ResultCode code, String message) {

        this.setCode(code);

        this.setMessage(message);

    }

    public JsonResult(Constants.ResultCode code, String message, Object data) {

        this.setCode(code);

        this.setMessage(message);

        this.setData(data);

    }

    public String getCode() {

        return code;

    }

    public void setCode(Constants.ResultCode code) {

        this.code = code.val();

        this.message = code.msg();

    }

    public String getMessage() {

        return message;

    }

    public void setMessage(String message) {

        this.message = message;

    }

    public Object getData() {

        return data;

    }

    public void setData(Object data) {

        this.data = data;

    }

}

public class Constants {

    /***

     *删除状态

     */

    public static enum DeleteStatus{

        NORMAL("0","NORMAL","正常"),DELETE("1","DELETE","删除");

        private DeleteStatus(String value,String name,String desc){

            this.value=value;

            this.name=name;

            this.desc=desc;

        }

        private final String value;

        private final String name;

        private final String desc;

        public String getValue() {

            return value;

        }

        public String getName() {

            return name;

        }

        public String getDesc() {

            return desc;

        }

    }

    /***

     * Result code

     */

    public static enum ResultCode {

        /** 成功 */

        SUCCESS("200", "成功"),

        NULL_DATA("205","无数据"),

        /** 没有登录 */

        NOT_LOGIN("400", "没有登录"),

        /** 发生异常 */

        EXCEPTION("401", "发生异常"),

        /** 系统错误 */

        SYS_ERROR("402", "系统错误"),

        /** 参数错误 */

        PARAMS_ERROR("403", "参数错误 "),

        /** 不支持或已经废弃 */

        NOT_SUPPORTED("410", "不支持或已经废弃"),

        /** AuthCode错误 */

        INVALID_AUTHCODE("444", "无效的AuthCode"),

        /** 太频繁的调用 */

        TOO_FREQUENT("445", "太频繁的调用"),

        /** 未知的错误 */

        UNKNOWN_ERROR("499", "未知错误"), 

        private ResultCode(String value, String msg){

            this.val = value;

            this.msg = msg;

        }

        public String val() {

            return val;

        }

        public String msg() {

            return msg;

        }

        private String val;

        private String msg;

    }

}