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通过apache的commons-codec包基于base64位encode代码将图片转换文字代码示例

标签:apache,commons-codec,base64位,encode代码,图片转换文字     发布时间:2018-09-29   

一、前言

基于apachecommons-codec包的org.apache.commons.codec.binary.Base64算法,将图片转换文字代码示例,详情参见示例说明。

二、示例说明

import java.io.File;                                                                                                                            @b@import java.io.FileInputStream;                                                                                                                 @b@import java.io.FileOutputStream;                                                                                                                @b@@b@import org.apache.commons.codec.binary.Base64;@b@                                                                                                                @b@                                                                                                                                                @b@public class File2Code {                                                                                                                        @b@                                                                                                                                                @b@    /**                                                                                                                                         @b@     * <p>将文件转成base64 字符串</p>                                                                                                           @b@     * @param path 文件路径                                                                                                                     @b@     * @return                                                                                                                                  @b@     * @throws Exception                                                                                                                        @b@     */                                                                                                                                         @b@    public static byte[] encodeBase64File(String path) throws Exception {                                                                       @b@        File  file = new File(path);                                                                                                            @b@        FileInputStream inputFile = new FileInputStream(file);                                                                                  @b@        byte[] buffer = new byte[(int)file.length()];                                                                                           @b@        inputFile.read(buffer);                                                                                                                 @b@        inputFile.close();                                                                                                                      @b@        return new Base64().encode(buffer);                                                                                              @b@    }                                                                                                                                           @b@    /**                                                                                                                                         @b@     * <p>将base64字符解码保存文件</p>                                                                                                          @b@     * @param base64Code                                                                                                                        @b@     * @param targetPath                                                                                                                        @b@     * @throws Exception                                                                                                                        @b@     */                                                                                                                                         @b@    public static void decoderBase64File(String base64Code,String targetPath) throws Exception {                                                @b@        byte[] buffer = new Base64().decodeBase64(base64Code);                                                                           @b@        FileOutputStream out = new FileOutputStream(targetPath);                                                                                @b@        out.write(buffer);                                                                                                                      @b@        out.close();                                                                                                                            @b@    }                                                                                                                                           @b@    /**                                                                                                                                         @b@     * <p>将base64字符保存文本文件</p>                                                                                                          @b@     * @param base64Code                                                                                                                        @b@     * @param targetPath                                                                                                                        @b@     * @throws Exception                                                                                                                        @b@     */                                                                                                                                         @b@    public static void toFile(String base64Code,String targetPath) throws Exception {                                                           @b@        byte[] buffer = base64Code.getBytes();                                                                                                  @b@        FileOutputStream out = new FileOutputStream(targetPath);                                                                                @b@        out.write(buffer);                                                                                                                      @b@        out.close();                                                                                                                            @b@    }                                                                                                                                           @b@    public static void main(String[] args) {                                                                                                    @b@        try {     @b@ /**@b@            String base64Code =new String(encodeBase64File("D:\\test1.txt"));                                                                                   @b@            System.out.println(base64Code);                                                                                                     @b@            decoderBase64File(base64Code, "D:\\2.txt");                                                                                         @b@            toFile(base64Code, "D:\\3.txt"); @b@ **/ @b@            String base64Code =new String(encodeBase64File("D:\\test1.zip"));                                                                                   @b@            System.out.println(base64Code);                                                                                                     @b@            decoderBase64File(base64Code, "D:\\2.zip");                                                                                         @b@            toFile(base64Code, "D:\\3.txt");     @b@                                                                                                         @b@        } catch (Exception e) {                                                                                                                 @b@            e.printStackTrace();                                                                                                                @b@        }                                                                                                                                       @b@    }                                                                                                                                           @b@                                                                                                                                                @b@}