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69 lines
2.5 KiB
69 lines
2.5 KiB
let FileUtil = com.example.hikerview.utils.FileUtil;
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let javaString = java.lang.String;
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let Base64 = java.util.Base64;
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const GZIPOutputStream = java.util.zip.GZIPOutputStream;
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const GZIPInputStream = java.util.zip.GZIPInputStream;
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const DeflaterOutputStream = java.util.zip.DeflaterOutputStream;
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const InflaterInputStream = java.util.zip.InflaterInputStream;
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const DeflaterInputStream = java.util.zip.DeflaterInputStream;
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const ByteArrayOutputStream = java.io.ByteArrayOutputStream;
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const ByteArrayInputStream = java.io.ByteArrayInputStream;
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const Deflater = java.util.zip.Deflater;
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function zip(text, mode) {
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mode = mode ? mode : "gzip";
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let baseStr = new javaString(text);
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// 使用 ByteArrayOutputStream 来捕获压缩后的数据
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var baos = new ByteArrayOutputStream();
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if (mode == "deflate") {
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var deflater = new java.util.zip.Deflater();
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deflater.setLevel(java.util.zip.Deflater.BEST_COMPRESSION);
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var dos = new java.util.zip.DeflaterOutputStream(baos, deflater);
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dos.write(baseStr.getBytes("UTF-8"));
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dos.finish(); // 完成压缩
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dos.close();
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} else {
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var gzos = new java.util.zip.GZIPOutputStream(baos);
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gzos.write(baseStr.getBytes("UTF-8"));
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gzos.close(); // 关闭压缩流
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}
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// 将压缩后的数据转换为 Base64 编码的字符串
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var compressedData = baos.toByteArray();
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var base64String = java.util.Base64.getEncoder().encodeToString(compressedData);
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// 关闭 ByteArrayOutputStream
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baos.close();
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return String(base64String);
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}
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function unzip(text, mode) {
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mode = mode ? mode : "gzip";
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var compressedData = Base64.getDecoder().decode(text);
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var bais = new ByteArrayInputStream(compressedData);
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var baos = new ByteArrayOutputStream();
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var buffer = java.lang.reflect.Array.newInstance(java.lang.Byte.TYPE, 1024);
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if (mode == "gzip") {
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var gis = new GZIPInputStream(bais);
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let len;
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while ((len = gis.read(buffer)) != -1) {
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baos.write(buffer, 0, len);
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}
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gis.close();
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} else if (mode == "deflate") {
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var iis = new InflaterInputStream(bais);
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let len;
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while ((len = iis.read(buffer)) != -1) {
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baos.write(buffer, 0, len);
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}
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iis.close();
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}
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bais.close();
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baos.close();
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var decompressedString = new javaString(baos.toByteArray(), "UTF-8");
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// 打印解压缩后的字符串
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return String(decompressedString);
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}
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$.exports = {
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zip,
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unzip
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}; |