package xyz.zinglizingli.common.utils;

import org.springframework.context.ApplicationContext;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

import java.io.UnsupportedEncodingException;


@Component
public class SpringUtil implements ApplicationContextAware {


    public static void main(String[] args) {
        String a = "���";
        try {
            String b = new String(a.getBytes("ISO-8859-1"),"gbk");
            System.out.println(b);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
    }


    private static ApplicationContext applicationContext;

    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if (SpringUtil.applicationContext == null) {
            SpringUtil.applicationContext = applicationContext;
        }
    }

    // 获取applicationContext
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    // 通过name获取 Bean.
    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }

    // 通过class获取Bean.
    public static <T> T getBean(Class<T> clazz) {
        return getApplicationContext().getBean(clazz);
    }

    // 通过name,以及Clazz返回指定的Bean
    public static <T> T getBean(String name, Class<T> clazz) {
        return getApplicationContext().getBean(name, clazz);
    }

}