我想做一個項目來下載文件和提取文件。我嘗試修復(fù)它很長時間。請查看我的代碼并幫助我，或者有人告訴我如何下載文件和解壓 zip 文件。在文件“download.zip”中包含 5 個視頻文件。我使用Sreedev R 的Class Decompresspublic class MainActivity extends AppCompatActivity {private static String dirPath, dirPath2;final String URL1 = "http://webmaster.com/01/defualt.zip";@Overrideprotected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); dirPath = Utils.getRootDirPath(getApplicationContext()); dirPath2 = Utils.getRootDirPath(getApplicationContext())+"Unzip"; init(); onClickListenerOne(); Decompress unzip = new Decompress(dirPath+"/download.zip",dirPath2); unzip.unzip();}解壓類public class Decompress { private String zip; private String loc; public Decompress(String zipFile, String location) { zip = zipFile; loc = location; dirChecker(""); } public void unzip() { try { FileInputStream fin = new FileInputStream(zip); ZipInputStream zin = new ZipInputStream(fin); ZipEntry ze = null; while ((ze = zin.getNextEntry()) != null) { Log.v("Decompress", "Unzipping " + ze.getName()); if(ze.isDirectory()) { dirChecker(ze.getName()); } else { FileOutputStream fout = new FileOutputStream(loc + ze.getName()); for (int c = zin.read(); c != -1; c = zin.read()) { fout.write(c); } zin.closeEntry(); fout.close(); } } zin.close(); } catch(Exception e) { Log.e("Decompress", "unzip", e); } } private void dirChecker(String dir) { File f = new File(loc + dir); if(!f.isDirectory()) { f.mkdirs(); } }}
1 回答
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TA貢獻2011條經(jīng)驗 獲得超2個贊
解決方案
您可以使用zip4j來提取 ZIP 文件。
public class Decompress {
private String zip;
private String loc;
public Decompress(String zipFile, String location) {
zip = zipFile;
loc = location;
dirChecker();
}
private void dirChecker() {
File f = new File(loc);
if(!f.isDirectory()) {
f.mkdirs();
}
}
public void unzip() {
try {
ZipFile zipFile = new ZipFile(zip);
List<FileHeader> fileHeaders = zipFile.getFileHeaders();
for (FileHeader fileHeader : fileHeaders) {
String fileName = fileHeader.getFileName();
if (fileName.contains("\\")) {
fileName = fileName.replace("\\", "\\\\");
String[] Folders = fileName.split("\\\\");
StringBuilder newFilepath = new StringBuilder();
newFilepath.append(loc);
for (int i = 0; i < Folders.length - 1; i++) {
newFilepath.append(File.separator);
newFilepath.append(Folders[i]);
}
zipFile.extractFile(fileHeader, newFilepath.toString(), null, Folders[Folders.length - 1]);
} else {
zipFile.extractFile(fileHeader, loc);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
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