Today, the framework wants to use annotation to implement section function, and the result is error type referred to is not an annotation type:RedisCache

The code is as follows:

Note:
the

@Target({ ElementType.METHOD })
@Retention( RetentionPolicy.RUNTIME )
@Inherited
@Documented
public @interface RedisCache {
    
    public String key() default “”;
    
    public long TTL() default 0L;

}

Section:

    @Around(“@annotation(redisCache)”)
    public void redisCache(ProceedingJoinPoint joinPoint,RedisCache redisCache){
        String targetName = joinPoint.getTarget ().getClass().getName();  
        String methodName = joinPoint.getSignature ().getName();  
        Object[] arguments = joinPoint.getArgs ();  
        Object result = null;  
        String cacheKey = getCacheKey(targetName, methodName, arguments);  
        System.out.println (“hahaha” + cachekey);
}
the original annotation must be passed in as a parameter, and the red part must be the same.

Error: child process failed, exited with error number 1

It’s usually a matter of permissions, or there is no corresponding path

Check steps: add a parameter after startup to export the log to a writable directory

./mongod –fork –logpath=/tmp/ mongod.log

Then look at the questions as follows:

2017-02-22T01:33:34.229+0800 I CONTROL  [main] ERROR: Cannot write pid file to /var/run/mongodb/ mongod.pid : No such file or directory

This means that there is no such directory (/ var/run/mongodb /)

Then create a new one, MKDIR – P/var/run/mongodb/

The normal restart is as follows:

root@sz :~/soft/mongodb342/bin# ./mongod -f  /etc/mongodb/ mongod.conf
about to fork child process, waiting until server is ready for connections.
forked process: 7482
child process started successfully, parent exiting