小编lor*_*eth的帖子

I have been try to run Zookeeper and Kafka on Docker container. I got a lot of errors [error occurred during error reporting , id 0xb] and [Too many errors, abort] in my terminal. And then library initialization failed - unable to allocate file descriptor table - out of memory.

I use the following docker-compose.yml file

version: "3.8"
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:5.5.4
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
  kafka:
    image: confluentinc/cp-kafka:5.5.4
    # If you want to expose these ports outside …

我在春季项目中创建了一个新的安全表达式，但它不起作用。这是我的代码。

首先，我做了一个CustomPermissionEvaluator工具PermissionEvaluator：

public class CustomPermissionEvaluator implements PermissionEvaluator {
    @Override
    public boolean hasPermission(Authentication auth, Object targetDomainObject, Object permission) {
        if ((auth == null) || (targetDomainObject == null) || !(permission instanceof String)) {
            return false;
        }
        final String targetType = targetDomainObject.getClass().getSimpleName().toUpperCase();
        return hasPrivilege(auth, targetType, permission.toString().toUpperCase());
    }

    @Override
    public boolean hasPermission(Authentication auth, Serializable targetId, String targetType, Object permission) {
        if ((auth == null) || (targetType == null) || !(permission instanceof String)) {
            return false;
        }
        return hasPrivilege(auth, targetType.toUpperCase(), permission.toString().toUpperCase()); …