org.kaizen4j.common.util.ProcessUtils Maven / Gradle / Ivy

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package org.kaizen4j.common.util;

import com.google.common.base.Throwables;

import java.io.*;

import static java.util.Objects.nonNull;

/**
 * 系统命令执行工具类
 *
 * @author John
 */
public final class ProcessUtils {

    /**
     * 执行命令
     *
     * @param command 命令字符串
     * @param charset 字符集
     * @return String 执行结果
     *
     * @throws IOException
     */
    public static String execute(String command, String charset) {
        return execute(new String[] {command}, charset);
    }

    /**
     * 执行命令
     *
     * @param command 命令字符串数组
     * @param charset 字符集
     * @return String 执行结果
     *
     * @throws IOException
     */
    public static String execute(String[] command, String charset) {
        Writer writer = new StringWriter();
        try {
            Process process = Runtime.getRuntime().exec(command);
            BufferedReader stdInput = new BufferedReader(new InputStreamReader(process.getInputStream(), charset));
            BufferedReader stdError = new BufferedReader(new InputStreamReader(process.getErrorStream(), charset));

            String line;
            while (nonNull(line = stdInput.readLine())) {
                writer.write(line);
            }

            while (nonNull(line = stdError.readLine())) {
                writer.write(line);
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        return writer.toString();
    }

}