java 从java运行shell命令
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run shell command from java
提问by masay
I am working on an application an have an issue about running shell command from java application. here is the code:
我正在开发一个应用程序，但有一个关于从 Java 应用程序运行 shell 命令的问题。这是代码：
public String execRuntime(String cmd) {
Process proc = null;
int inBuffer, errBuffer;
int result = 0;
StringBuffer outputReport = new StringBuffer();
StringBuffer errorBuffer = new StringBuffer();
try {
proc = Runtime.getRuntime().exec(cmd);
} catch (IOException e) {
return "";
}
try {
response.status = 1;
result = proc.waitFor();
} catch (InterruptedException e) {
return "";
}
if (proc != null && null != proc.getInputStream()) {
InputStream is = proc.getInputStream();
InputStream es = proc.getErrorStream();
OutputStream os = proc.getOutputStream();
try {
while ((inBuffer = is.read()) != -1) {
outputReport.append((char) inBuffer);
}
while ((errBuffer = es.read()) != -1) {
errorBuffer.append((char) errBuffer);
}
} catch (IOException e) {
return "";
}
try {
is.close();
is = null;
es.close();
es = null;
os.close();
os = null;
} catch (IOException e) {
return "";
}
proc.destroy();
proc = null;
}
if (errorBuffer.length() > 0) {
logger
.error("could not finish execution because of error(s).");
logger.error("*** Error : " + errorBuffer.toString());
return "";
}
return outputReport.toString();
}
but when i try to exec command like :
但是当我尝试执行如下命令时：
/export/home/test/myapp -T "some argument"
myapp reads "some argument"as two seperated arguments.but I want to read "some argument"as only a argument. when i directly run this command from terminal, it executed successfully.I tried '"some argument"',""some argument"", "some\ argument"but did not work for me. how can i read this argument as one argument.
myapp 读取"some argument"为两个单独的参数。但我只想读取"some argument"为一个参数。当我直接从终端运行此命令时，它执行成功。我试过'"some argument"', ""some argument""，"some\ argument"但对我不起作用。我怎么能把这个论点看作一个论点。
回答by Midhat
I recall that the an overload of exec method provides a parameter for the arguments seperately. You need to use that
我记得 exec 方法的重载分别为参数提供了一个参数。你需要使用那个
Yup. Here is it
对。就这个
public Process exec(String[] cmdarray)
throws IOException
Just make the command line and all arguments Seperate elements of the String array
只需将命令行和所有参数分开字符串数组的元素
回答by Yasir
first make a string
String cmd="/export/home/test/myapp -T \"some argument\"";
then run cmd in proc
首先创建一个字符串
String cmd="/export/home/test/myapp -T \"some argument\"";
然后在proc中运行cmd
