获取Spring注册的Bean

• Z时代
• 2024-01-10
• 分类：综合

有时候不能通过注解的方式使用springBean，需要用到：

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
import java.util.Objects;
/**
 * Bean工具类<br>
 * 在非spring管理的类中获取spring注册的bean
 *
 */
@Component
public class BeanTool implements ApplicationContextAware {
    private static ApplicationContext applicationContext;
    @Override
    public void setApplicationContext(ApplicationContext context) throws BeansException {
        if (Objects.isNull(applicationContext)) {
            applicationContext = context;
        }
    }
    public static Object getBean(String name) {
        return applicationContext.getBean(name);
    }
    public static <T> T getBean(Class<T> clazz) {
        return applicationContext.getBean(clazz);
    }
}

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