JFrame implement bulk get Android Install package security certificate MD5

Today encountered a demand, get all the APK signature MD5, below is I use Java SE implementation of a tool, paste out the core source code, I hope to have a friend in need to help.

The interface is as follows:

Just create the directory where the. apk file is located and the core code is as follows:

public class Readcmdline {private static Md5window window;private static string inputpath;public static void main (String a Rgs[]) {window = new Md5window (); window.setvisible (true); Initwindow ();} private static void Initwindow () {//File directory text box Window.getfilepathbutton (). addActionListener (New ActionListener () {@ overridepublic void actionperformed (ActionEvent arg0) {JFileChooser JFC = new JFileChooser (); Jfc.setfileselectionmode ( jfilechooser.files_and_directories); Jfc.showdialog (new JLabel (), "select"); File File = Jfc.getselectedfile (); Notdirectoryexcute (file);}}); /Start Run button Window.getbeginbutton (). addActionListener (New ActionListener () {@Overridepublic void actionperformed ( ActionEvent arg0) {InputPath = window.getjtextfiled (); if (InputPath! = null &&! "). Equals (Inputpath.trim ())) {Notdirectoryexcute (new File (InputPath));}}); /Empty Results button Window.getclearbutton (). addActionListener (New ActionListener () {@Overridepublic void actionperformed ( ActionEvent arg0) {Window.settextarea ("");}});} /** * Determine if it is a directoryIf not then execute * * @param file */public static void Notdirectoryexcute (file file) {if (File.isdirectory ()) {InputPath = file.ge Tabsolutepath (); window.setjtextfiled (InputPath); file[] Fiels = File.listfiles (); for (int i = 0; i < fiels.length; i++) {String abspath = Fiels[i].getabsolutepath (); if (Abspath.contains (". apk")) {Excute (Abspath);}}} else {joptionpane.showmessagedialog (window, "Please select Directory");}} /** * Core Logic * * @param abspath */public static void Excute (String abspath) {//1, read Cert.rsa file from. apk String appName = Abspat H.substring (Abspath.lastindexof ("_") + 1,abspath.lastindexof (".")); try {if (abspath! = null) {Readzipfile (Abspath)}} catch (Exception e) {e.printstacktrace ();} 2. Execute keytool command to get md5process process = null; list<string> processlist = new arraylist<string> (); try {process = Runtime.getruntime (). EXEC ("Keytool- Printcert-file D:/test/cert. RSA "); BufferedReader input = new BufferedReader (New InputStreamReader (Process.getinputstream ())); String line = "", while (line = input.ReadLine ()) = null) {Processlist.add (line);} Input.close ();} catch (IOException e) {e.printstacktrace ();} Filter content for (String line:processlist) {if (Line.contains ("MD5")) {Window.settextarea (Window.gettextarea () + String.Format ("%-30s", AppName) + Line.trim () + "\ n");}}}  /** * Read Compressed file contents * * @param file Compressed path * @throws Exception */public static void Readzipfile (String file) throws Exception {ZipFile ZF = new ZipFile (file); InputStream in = new Bufferedinputstream (new FileInputStream (file)); Zipinputstream Zin = new Zipinputstream (in); File OutFile = new file ("D:\\test\\cert. RSA "); OutputStream out = new FileOutputStream (outFile); InputStream rsastream = Zf.getinputstream (Zf.getentry (" Meta-inf/cert. RSA ")) (byte[] buf1 = new Byte[1024];int len;while (len = Rsastream.read (buf1)) > 0) {out.write (buf1, 0, Len);} Rsastream.close (); Out.close (); In.close (); Zin.closeentry ();}}

JFrame implement bulk get Android Install package security certificate MD5