package com.baofoo.util;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.util.zip.*;
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public class ZipUtils {
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/**
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* 使用zip进行压缩
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*
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* @param str 压缩前的文本
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* @return 返回压缩后的文本
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*/
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public static final String zip(String str) {
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if (str == null)
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return null;
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byte[] compressed;
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ByteArrayOutputStream out = null;
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ZipOutputStream zout = null;
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String compressedStr = null;
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try {
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out = new ByteArrayOutputStream();
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zout = new ZipOutputStream(out);
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zout.putNextEntry(new ZipEntry("0"));
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zout.write(str.getBytes("utf-8"));
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zout.closeEntry();
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compressed = out.toByteArray();
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compressedStr = new sun.misc.BASE64Encoder().encodeBuffer(compressed);
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} catch (IOException e) {
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} finally {
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compressed = null;
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if (zout != null) {
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try {
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zout.close();
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} catch (IOException e) {
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}
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}
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if (out != null) {
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try {
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out.close();
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} catch (IOException e) {
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}
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}
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}
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return compressedStr;
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}
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/**
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* 使用zip进行解压缩
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*
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* @param compressedStr 压缩后的文本
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* @return 解压后的字符串
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*/
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public static final String unzip(String compressedStr) {
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if (compressedStr == null) {
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return null;
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}
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ByteArrayOutputStream out = null;
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ByteArrayInputStream in = null;
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ZipInputStream zin = null;
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String decompressed = null;
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try {
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byte[] compressed = new sun.misc.BASE64Decoder().decodeBuffer(compressedStr);
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out = new ByteArrayOutputStream();
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in = new ByteArrayInputStream(compressed);
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zin = new ZipInputStream(in);
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zin.getNextEntry();
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byte[] buffer = new byte[1024];
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int offset = -1;
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while ((offset = zin.read(buffer)) != -1) {
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out.write(buffer, 0, offset);
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}
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decompressed = out.toString();
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} catch (IOException e) {
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decompressed = null;
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} finally {
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if (zin != null) {
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try {
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zin.close();
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} catch (IOException e) {
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}
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}
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if (in != null) {
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try {
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in.close();
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} catch (IOException e) {
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}
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}
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if (out != null) {
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try {
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out.close();
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} catch (IOException e) {
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}
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}
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}
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return decompressed;
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}
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/**
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* 使用gzip进行压缩
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*/
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public static String gzip(String primStr) {
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if (primStr == null || primStr.length() == 0) {
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return primStr;
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}
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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GZIPOutputStream gzip = null;
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try {
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gzip = new GZIPOutputStream(out);
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gzip.write(primStr.getBytes());
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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if (gzip != null) {
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try {
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gzip.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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return new sun.misc.BASE64Encoder().encode(out.toByteArray());
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}
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/**
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* <p>Description:使用gzip进行解压缩</p>
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*
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* @param compressedStr
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* @return
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*/
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public static String gunzip(String compressedStr) {
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if (compressedStr == null) {
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return null;
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}
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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ByteArrayInputStream in = null;
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GZIPInputStream ginzip = null;
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byte[] compressed = null;
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String decompressed = null;
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try {
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compressed = new sun.misc.BASE64Decoder().decodeBuffer(compressedStr);
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in = new ByteArrayInputStream(compressed);
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ginzip = new GZIPInputStream(in);
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byte[] buffer = new byte[1024];
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int offset = -1;
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while ((offset = ginzip.read(buffer)) != -1) {
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out.write(buffer, 0, offset);
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}
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decompressed = out.toString();
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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if (ginzip != null) {
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try {
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ginzip.close();
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} catch (IOException e) {
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}
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}
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if (in != null) {
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try {
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in.close();
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} catch (IOException e) {
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}
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}
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if (out != null) {
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try {
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out.close();
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} catch (IOException e) {
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}
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}
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}
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return decompressed;
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}
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public static void main(String[] args) {
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System.out.println(gunzip("H4sIAAAAAAAAAC2O3Y6qMBRG34VbT2JrC6WTeCEqHPlRFBjFmJwUioggFgZEnMy7j9Fzu9deX9a3\nFF15L31I3weJCbHgB+njIHX3SEGxSlkU0RFGjIOD9OcgNdkl8Rp2Ea8nKKsKQpgi/ILltYyftH4x\nWUUoonQ0QvIRE8YjyGOIQMRwxEEUJy9DsDhnafISRJ0I1v/L+Li7AxUqSEZYVTB9DhAGMSGUckgR\nIBAp4F3zlaWl34u3v/Em/zd773l/B7q7ptDzztksWfYVoh5tqupvzfRh2THL1ArjXl/h0MEBmOiX\naHn6TB73fg5Czw5Rp+hVQyGZoVNvxWR1zN288It+knE5nKoKNQu73dk+IWc51xqfCsjVxcqtgnar\nwlrrTeZsdcu91KSv6GI6tQcbgNoyfLDBYmTSiel2U2Kl+swos3a+NWQr2Ndr15dz645BF6x2TtqF\n3jSob+tFpoe3pexkw6WaYtAs0IzsjWNL958FPuMCV7l5FFvOHREwpwlGPBWNbmqpDpKo9OV6ztTa\n5oaORHUZHNNkOUNoXrPpCT6ctW85I9f2umvMj9csM0Slz8Et37aqVhexZu8a+9nCBtA2wHk9Hh+k\nH+nnFxu5FfU5AgAA"));
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System.out.println("");
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System.out.println(gzip("{\"appId\":\"wxb63c89abb9243ad0\",\"partnerId\":\"1900009211\",\"prepayId\":\"wx2609231311516570f5c26d423140558190\",\"package\":\"Sign=WXPay\",\"timeStamp\":\"1551144193\",\"nonceStr\":\"eef4400a6b0443bd878b97188a648a98\",\"paySign\":\"UO/6ys1nlZNXzrX4DayuY9S91Yeb8KHFTR7q35LbrOW73nCSRCOEy1DE04Hu5+JMsLEV87vd3acBLZ+AzjeuuRlSgNuEfjs4DDFF+6bMWRc+JUnZC2Nr2JgDuygtxuMrR+zH2yJY7QViOihQ4ScRb22UleaUCENFN1+yNOTUPTIve0KeMPMpSN+zCyAH+SPNUB9Q8Iiytfpw0e0h+ZmYYSq3JTBoK8VxEel1Us2l3WtJMaVj4ZAXTQ27+1JSTjhxRckF3qbL+PkkXB4b8d8Cc21U1eeuUrCQT0j5ZFx92EOT+zsKy51+rj+c84djDAfkPjVvVwhhgjDQcpxF4JzulA==\"}"));
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}
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}
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