base64與字符串String之間的相互轉換

package com.wzq;import javax.xml.bind.DatatypeConverter; import java.io.UnsupportedEncodingException; import java.util.Base64;/*** @ClassName Base64Utils* @Description: TODO* @Author wzq* @CreateDate 2019/10/14* @UpdateDate 2019/10/16* @Version V1.0**/ public class Base64Utils {/*** 測試編碼 OK*/public static void main(String[] args) throws Throwable {System.out.println("*************************方式一*********************");String encode1 = Base64Encode("在線加密解密測試", "UTF-8");System.out.println("Encode1 " + encode1);String decode1 = Base64Decode(encode1, "UTF-8");System.out.println("decode1 " + decode1);System.out.println("*************************方式二*********************");String encode2 = encode2("在線加密解密測試", "UTF-8");System.out.println("encode2 "+encode2);String decode2 = decode2(encode2, "UTF-8");System.out.println("decode2 "+decode2);System.out.println("*************************方式三*********************");String encode3 = encode3("在線加密解密測試", "UTF-8");System.out.println("encode3 "+encode3);String decode3 = decode3(encode3, "UTF-8");System.out.println("decode3 "+decode3);System.out.println("*************************方式四*********************");String encode4 = encode4("在線加密解密測試", "UTF-8");System.out.println("encode4 "+encode4);String decode4 = decode3(encode4, "UTF-8");System.out.println("decode4 "+decode4);}/*****************************************方式一**********************************************//***************使用jdk自帶的DatatypeConverter.java類實現，但是jdk版本必須>=1.6。****************//*** base64編碼** @param result* @param encodeType* @return* @throws UnsupportedEncodingException*/public static String Base64Encode(String result, String encodeType) throws Throwable {try {byte[] data = result.getBytes(encodeType);return DatatypeConverter.printBase64Binary(data);} catch (Exception e) {throw new Throwable("base64編碼錯誤");}}/*** base64解碼** @param encodeType* @param result* @return*/public static String Base64Decode(String result, String encodeType) throws Throwable {try {byte[] data = DatatypeConverter.parseBase64Binary(result);return new String(data, encodeType);} catch (Exception e) {throw new Throwable("base64解碼");}}/*****************************************方式二**********************************************//*******************使用jdk自帶的Base64.java類實現，但是jdk版本必須>=1.8。***********************//*** base64編碼** @param str* @param encodeType* @return* @throws UnsupportedEncodingException*/public static String encode2(String str, String encodeType) throws UnsupportedEncodingException {byte[] data = str.getBytes(encodeType);return Base64.getEncoder().encodeToString(data);}/*** base64解碼** @param result* @param encodeType* @return*/public static String decode2(String result, String encodeType) throws UnsupportedEncodingException {byte[] data = result.getBytes(encodeType);byte[] decode = Base64.getDecoder().decode(data);return new String(decode,encodeType);}/*****************************************方式三**********************************************//** 使用cn.hutool.core.codec.Base64類實現* <dependency>* <groupId>cn.hutool</groupId>* <artifactId>hutool-all</artifactId>* <version>4.5.0</version>* </dependency>*//*** base64編碼** @param str* @param encodeType* @return* @throws UnsupportedEncodingException*/public static String encode3(String str, String encodeType) throws UnsupportedEncodingException {return cn.hutool.core.codec.Base64.encode(str,encodeType);}/*** base64解碼** @param result* @param encodeType* @return*/public static String decode3(String result, String encodeType) throws UnsupportedEncodingException {return cn.hutool.core.codec.Base64.decodeStr(result,encodeType);}/*****************************************方式四**********************************************//** 使用org.apache.commons.codec.binary.Base64類實現* <dependency>* <groupId>commons-codec</groupId>* <artifactId>commons-codec</artifactId>* <version>1.11</version>* </dependency>*//*** base64編碼** @param str* @param encodeType* @return* @throws UnsupportedEncodingException*/public static String encode4(String str, String encodeType) throws UnsupportedEncodingException {return org.apache.commons.codec.binary.Base64.encodeBase64String(str.getBytes(encodeType));}/*** base64解碼** @param result* @param encodeType* @return*/public static String decode4(String result, String encodeType) throws UnsupportedEncodingException {return new String(org.apache.commons.codec.binary.Base64.decodeBase64(result),encodeType);}}

輸出打印：

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在線測試：成功

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