package <%=packageName%>;

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

import java.io.File;

@Component
public class SpringBootUtil implements ApplicationContextAware {

    private static ApplicationContext applicationContext;

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

    public static String getApplicationPath() {
        ApplicationHome home = new ApplicationHome();
        return home.getDir().toString();
    }
    public static String getApplicationPathEndWithSeparator() {
        ApplicationHome home = new ApplicationHome();
        return home.getDir().toString()+File.separator;
    }
    //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);
    }
}
