线程中无法使用spring注入的问题

如果是web应用，可以直接通过classLoader拿到context实例，获取bean

public class SpringBeanUtil {
    private static ApplicationContext applicationContext;
    public static <T> T getBean(Class<T> clazz, String beanName) {
        ApplicationContext context = ContextLoader.getCurrentWebApplicationContext();
        if (context == null) {
            context = applicationContext;
        }
        return (T) context.getBean(beanName);
    }
    public static void setApplicationContext(ApplicationContext applicationContext) {
        SpringBeanUtil.applicationContext = applicationContext;
    }
}