jdk command-line tools

cmd中执行jps查看程序进程id

查看进程：jps -l

java stack trace tool: jstack [-l] pid 

virtual machine snapshot of the heap dump analysis tools 
after use jmap and other methods to generate java heap file 
jhat: a snapshot of the virtual machine heap dump analysis tool

@SneakyThrows

 @Getter
    @Setter
    @ToString
    @Builder
    @NoArgsConstructor @AllArgsConstructor public static class User { private String name; }