Java Commons exec在环境变量值中查找主类
我正在尝试使用Apache commons exec从Java应用程序中启动脚本,并出现以下错误:Java Commons exec在环境变量值中查找主类,java,environment-variables,apache-commons-exec,Java,Environment Variables,Apache Commons Exec,我正在尝试使用Apache commons exec从Java应用程序中启动脚本,并出现以下错误: Error: Could not find or load main class "-DappEnv=te org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1) at org.apache.commons.exec.DefaultExecutor.executeIn
Error: Could not find or load main class "-DappEnv=te
org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1)
at org.apache.commons.exec.DefaultExecutor.executeInternal(DefaultExecutor.java:402)
at org.apache.commons.exec.DefaultExecutor.execute(DefaultExecutor.java:164)
at TestRunner.runTest(TestRunner.java:37)
at TestMain.main(TestMain.java:6)
对于以下代码:
String jOpts = "JAVA_OPTS=\"-DappEnv=te -DsetInstance=true -Dinstance=.01\"";
String command = "/path/to/bin/script.sh -s argVal";
try {
Map<String, String> procEnv = EnvironmentUtils.getProcEnvironment();
EnvironmentUtils.addVariableToEnvironment(procEnv, jOpts);
CommandLine cmdLine = CommandLine.parse(command);
DefaultExecutor executor = new DefaultExecutor();
executor.setWorkingDirectory(new File("/path/to"));
executor.execute(cmdLine, procEnv);
} catch (Exception e) {
e.printStackTrace();
}
有谁能提供一些见解,解释为什么引用的值被拆分为空白,和/或为什么它在
JAVA\u OPTS
的值中寻找一个主类?我是否正确使用了环境映射?问题的一部分是exec在JAVA\u OPTS的值中添加了自己的引号。如果该值周围没有引号,则环境变量将设置为精细:
String jOpts = "JAVA_OPTS=-DappEnv=te -DsetInstance=true -Dinstance=.01";
该命令的格式也不正确。传递给commandLine.parse()
的参数应该只是要运行的程序的名称:
String command = "/path/to/bin/script.sh";
CommandLine cmdLine = CommandLine.parse(command);
其余的参数需要添加到addArgument()
:
String command = "/path/to/bin/script.sh";
CommandLine cmdLine = CommandLine.parse(command);
cmdLine.addArgument("-s");
cmdLine.addArgument("argVal");