工具类：base64编解码

我就是我 2024-03-22 12:53 112阅读 0赞

import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    import java.io.UnsupportedEncodingException;
    import java.net.URLDecoder;
    import java.net.URLEncoder;
    import java.util.Base64;
    
    public class EncryptUtil {
        
        private static final Logger logger = LoggerFactory.getLogger(EncryptUtil.class);
    
        /**
         * 将字节数组进行base64编码
         * @param bytes
         * @return
         */
        public static String encodeBase64(byte[] bytes){
        
            String encoded = Base64.getEncoder().encodeToString(bytes);
            return encoded;
        }
    
        /**
         * 将字符串进行base64解码
         * @param str
         * @return
         */
        public static byte[]  decodeBase64(String str){
        
            byte[] bytes = null;
            bytes = Base64.getDecoder().decode(str);
            return bytes;
        }
    
        /**
         * 将字符串str 先使用utf-8符集进行url编码 +转为%2B ?转为%3F 等防止传输过程中出问题，然后在进行base64编码
         * @param str
         * @return
         */
        public static String encodeUTF8StringBase64(String str){
        
            String encoded = null;
            try {
        
                encoded = URLEncoder.encode(str, "utf-8");
                encoded = Base64.getEncoder().encodeToString(encoded.getBytes("utf-8"));
            } catch (UnsupportedEncodingException e) {
        
                logger.warn("不支持的编码格式",e);
            }
            return encoded;
    
        }
    
        /**
         * 将字符串str 先进行base64解码 然后在使用utf-8字符集进行url解码
         * @param str
         * @return
         */
        public static String  decodeUTF8StringBase64(String str){
        
            String decoded = null;
            byte[] bytes = Base64.getDecoder().decode(str);
    
            try {
        
                decoded = new String(bytes,"utf-8");
                decoded = URLDecoder.decode(decoded, "utf-8");
            }catch(UnsupportedEncodingException e){
        
                logger.warn("不支持的编码格式",e);
            }
            return decoded;
        }
    
    
        public static void main(String [] args){
        
            String str = "www.baidu.com?a=1&b=2+1&c=dfdasaf+%&&d=1";
            String encoded = EncryptUtil.encodeUTF8StringBase64(str);
            String decoded = EncryptUtil.decodeUTF8StringBase64(encoded);
            System.out.println(str);
            System.out.println(encoded);
            System.out.println(decoded);
    
        }
    
    
    }