Method main

src/com/abc/Main.java:22–45

(String[] args)

    private static HashMap dbConnMap=new HashMap();
    private static String outFile;
    public static void main(String[] args) throws Throwable{
        if (args.length == 0){
            help();
            return;
        }
        Class.forName("sun.tools.attach.HotSpotAttachProvider");
        String option = args[0].trim();
        if ("list".equals(option)){
            List<VirtualMachineDescriptor> vms = VirtualMachine.list();
            System.out.println("vm count: " + vms.size());
            for (int i = 0; i < vms.size(); i++) {
                VirtualMachineDescriptor vm = vms.get(i);
                System.out.println(String.format("pid: %s displayName:%s",vm.id(),vm.displayName()));
            }
        }else if ("inject".equals(option) && args.length >= 2){
            String targetPid = args[1];
            String outFile = args[2];
            VirtualMachine virtualMachine = VirtualMachine.attach(targetPid);
            virtualMachine.loadAgent(getJarFileByClass(Main.class),outFile);
            System.out.println("inject ok!");
        }else {
            help();
        }
    }
    public static void help(){
        System.out.println("java -jar injectDatabase.jar list\n" +
                "java -jar injectDatabase.jar inject targetPid outFile\n" +