package com.ard.utils;
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import org.springframework.beans.BeansException;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.ApplicationContextAware;
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import org.springframework.stereotype.Component;
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/**
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* @Description:
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* @ClassName: SpringTool
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* @Author: 刘苏义
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* @Date: 2023年06月06日9:14
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* @Version: 1.0
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**/
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@Component
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public class SpringTool implements ApplicationContextAware {
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private static ApplicationContext applicationContext = null;
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@Override
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public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
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if (SpringTool.applicationContext == null) {
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SpringTool.applicationContext = applicationContext;
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}
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}
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//该方法用于外界获取ApplicationContext对象
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public static ApplicationContext getApplicationContext() {
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return applicationContext;
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}
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//该方法用于外界通过bean的名字获取Bean对象
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public static Object getBean(String name) {
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return getApplicationContext().getBean(name);
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}
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/**
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* Byte字节转Hex
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* @param b 字节
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* @return Hex
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*/
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public static String byteToHex(byte b)
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{
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String hexString = Integer.toHexString(b & 0xFF);
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//由于十六进制是由0~9、A~F来表示1~16，所以如果Byte转换成Hex后如果是<16,就会是一个字符（比如A=10），通常是使用两个字符来表示16进制位的,
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//假如一个字符的话，遇到字符串11，这到底是1个字节，还是1和1两个字节，容易混淆，如果是补0，那么1和1补充后就是0101，11就表示纯粹的11
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if (hexString.length() < 2)
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{
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hexString = new StringBuilder(String.valueOf(0)).append(hexString).toString();
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}
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return hexString.toUpperCase();
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}
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}
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