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如何让 telnet 的 Java 流与ExpectIt一起使用？ 在 Linux 上使用实际的 Telnet 客户端，而不是使用 Java 库，例如下面的 Apache Telnet。

这是在期望手册页的上下文中：

Expect 是一个根据脚本与其他交互式程序“对话”的程序。

与之前提出以下评论的模糊、过于宽泛的问题相比，范围更窄的后续问题：

与所有其他 Java 库一样，该库使用标准 Java 流，这些流可以来自 Telnet 客户端、套接字连接或任何其他流源。这是一个 telnet 示例：github.com/Alexey1Gavrilov/ExpectIt/blob/master/expectit-core/… – Alexey Gavrilov

这是示例代码：

package net.sf.expectit;

/*
 * #%L
 * ExpectIt
 * %%
 * Copyright (C) 2016 Alexey Gavrilov and contributors
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import static net.sf.expectit.matcher.Matchers.contains;

import java.io.IOException;
import org.apache.commons.net.telnet.TelnetClient;

/**
 * A telnet client example showing weather forecast for a city.
 */
public class TelnetExample {
    public static void main(String[] args) throws IOException {
        TelnetClient telnet = new TelnetClient();
        telnet.connect("rainmaker.wunderground.com");


        StringBuilder wholeBuffer = new StringBuilder();
        Expect expect = new ExpectBuilder()
                .withOutput(telnet.getOutputStream())
                .withInputs(telnet.getInputStream())
                .withEchoOutput(wholeBuffer)
                .withEchoInput(wholeBuffer)
                .withExceptionOnFailure()
                .build();

        expect.expect(contains("Press Return to continue"));
        expect.sendLine();
        expect.expect(contains("forecast city code--"));
        expect.sendLine("SAN");
        expect.expect(contains("X to exit:"));
        expect.sendLine();

        String response = wholeBuffer.toString();
        System.out.println(response);

        expect.close();
    }
}

另见： https ://stackoverflow.com/a/4532395/262852

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1 回答 1

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您可以生成一个 telnet 客户端进程并连接到该进程的输入和输出流。就像是：

        Process process = Runtime.getRuntime().exec("telnet rainmaker.wunderground.com");
        StringBuilder wholeBuffer = new StringBuilder();
        Expect expect = new ExpectBuilder()
                .withOutput(process.getOutputStream())
                .withInputs(process.getInputStream())
                .withEchoOutput(wholeBuffer)
                .withEchoInput(wholeBuffer)
                .withExceptionOnFailure()
                .build();

这是完整示例的链接。

于 2016-04-26T16:33:10.020 回答