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GZip+Base64压缩字符串在ios上解压报错问题解决（安卓、PC模拟器正常）

java 2025/5/14 13:49:24

java这边的压缩代码
引入的是java8 jdk自带的gzip压缩（ java.util.zip.GZIPOutputStream）、BASE64Encoder( sun.misc.BASE64Encoder)

public static String compress(String str) {if (str != null && str.length() != 0) {ByteArrayOutputStream out = new ByteArrayOutputStream();GZIPOutputStream gzip = null;try {gzip = new GZIPOutputStream(out);gzip.write(str.getBytes());} catch (IOException e) {log.error("字符串压缩异常!", e);e.printStackTrace();} finally {IoUtil.close(gzip);}return (new BASE64Encoder()).encode(out.toByteArray());} else {return str;}}

小程序的解压代码

	let pakoContent =  uni.base64ToArrayBuffer(content);pakoContent = pako.ungzip(pakoContent, { to: 'string' });return pakoContent

被压缩字符串

物流行业如何应对全球化供应链的挑战？

ios报错信息
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aotb failed : invalid string length 105

经过测试，java端压缩出的结果长度有106，不是4的整数倍

自行查看没有发现明显问题后询问AI查找可能原因
在这里插入图片描述

经过验证，确实sum.misc的base64有问题，更换为java.util下的解决了

修改后的


import cn.hutool.core.io.IoUtil;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Base64;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;public class StringCompressUtils {private static final Logger log = LoggerFactory.getLogger(StringCompressUtils.class);public StringCompressUtils() {}public static String compress(String str) {if (str != null && str.length() != 0) {ByteArrayOutputStream out = new ByteArrayOutputStream();GZIPOutputStream gzip = null;try {gzip = new GZIPOutputStream(out);gzip.write(str.getBytes());} catch (IOException e) {log.error("字符串压缩异常!", e);e.printStackTrace();} finally {IoUtil.close(gzip);}return Base64.getEncoder().encodeToString(out.toByteArray());} else {return str;}}public static String uncompress(String compressedStr) {if (compressedStr == null) {return null;} else {byte[] compressed = null;String decompressed = null;GZIPInputStream ginzip = null;ByteArrayInputStream in = null;ByteArrayOutputStream out = new ByteArrayOutputStream();try {compressed = Base64.getDecoder().decode(compressedStr);in = new ByteArrayInputStream(compressed);ginzip = new GZIPInputStream(in);byte[] buffer = new byte[1024];int offset = -1;while((offset = ginzip.read(buffer)) != -1) {out.write(buffer, 0, offset);}decompressed = out.toString();} catch (IOException e) {log.error("字符串解压缩异常!", e);e.printStackTrace();} finally {IoUtil.close(ginzip);IoUtil.close(in);IoUtil.close(out);}return decompressed;}}
}