使用带有`java.lang.ProcessBuilder`

时间:2016-01-29 06:02:25

标签: java coldfusion processbuilder cfml railo

我有以下脚本使用Java java.lang.ProcessBuilder执行shell命令,如果我不使用参数,该命令可以正常工作:

<cfif IsDefined("FORM.cmd")>
  <cfif Server.OS.Name CONTAINS "Mac" or Server.OS.Name CONTAINS "Linux" or Server.OS.Name IS "UNIX">
    <cfset cmd = "sh -c #FORM.cmd#">
  <cfelseif Server.OS.Name CONTAINS "Windows">
    <cfset cmd = "cmd.exe /c #FORM.cmd#">
  <cfelse>
    <cfset cmd = "sh -c #FORM.cmd#">
  </cfif>

  <cfscript>
    str = htmleditformat(REReplace(cmd,"""","'","ALL"));
    exec = str.split(" ");
    pb = createObject("java","java.lang.ProcessBuilder").init(exec);
    pb.redirectErrorStream(true);
    proc = pb.start();
    proc.waitFor();
    isr = createObject("java","java.io.InputStreamReader").init(proc.getInputStream());
    br = createObject("java","java.io.BufferedReader").init(isr);
    line = br.readLine();
    while (isDefined("line")) {
     writeoutput(line & '<br>');
     line = br.readLine();
    }
    br.close();
    isr.close();
  </cfscript>
</cfif>

如果我的#FORM.cmd#uname,则输出符合我的预期:

Linux

但如果我的#FORM.cmd#uname -a,则脚本仅在uname参数之外执行-a。所以我想我会使用java数组来添加参数:

  <cfscript>
    args = createObject("java", "java.util.ArrayList").init();
    args.add("sh");
    args.add("-c");
    args.add("uname");
    args.add("-a");
    pb = createObject("java","java.lang.ProcessBuilder").init(args);
    pb.redirectErrorStream(true);
    proc = pb.start();
    proc.waitFor();
    isr = createObject("java","java.io.InputStreamReader").init(proc.getInputStream());
    br = createObject("java","java.io.BufferedReader").init(isr);
    line = br.readLine();
    while (isDefined("line")) {
     writeoutput(line & '<br>');
     line = br.readLine();
    }
    br.close();
    isr.close();
  </cfscript>

同样的问题。我做错了什么?

1 个答案:

答案 0 :(得分:0)

&#34; -a&#34;作为sh的论据传入,而不是uname。你需要把&#34; uname -a&#34;在同一个arg中,即:

args.add("sh");
args.add("-c");
args.add("uname -a");

如果有助于澄清,要直接从命令行执行此操作,您需要输入:

sh -c "uname -a"