Linux 上的 ProcessBuilder 运行 jar

Question

我正在尝试使用以下代码运行 Linux 服务器上的一个 jar：

private static final String directory = "/usr1/oracle/directory/";

protected ProcessBuilder buildImportProcess(String[] args) {
    ProcessBuilder pb = new ProcessBuilder("/usr1/linktojava/java/jdk/java", "-jar", directory + "jartoexecute.jar",
            args[0], args[1], args[2]);
    pb.directory(new File(directory));
    return pb;
}

public int runJar(String[] args) {
    int status = 1;
    try {
        ProcessBuilder pb = buildImportProcess(args);
        Process process = pb.start();
        BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));
        String s = "";
        while ((s = in.readLine()) != null) {
            logger.info(s);
        }
        status = process.waitFor();
    } catch (IOException | InterruptedException e) {
        logger.error(e.getMessage(), e);
    }
    return status;
}

我得到这个错误：

java.io.IOException: Cannot run program "/usr1/linktojava/java/jdk/java" (in directory "/usr1/oracle/directory"): error=2, File or directory not found

所有文件似乎都在正确的位置。

Answer 1

java 可执行文件位于 JDK 的 jre/bin/ 子目录中。

因此，要传递给 ProcessBuilder 的正确路径将是 "/usr1/linktojava/java/jdk/jre/bin/java" 而不是 "/usr1/linktojava/java/jdk/java".

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