反编译apk文件，查找jar文件中字符串

Posted 2022-11-24 陳英傑

package com.lzxx.testdemo.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

public class FindStrInJar 

    public String condition;  //查询的条件


    public ArrayList<String> jarFiles = new ArrayList<String>();


    public FindStrInJar() 
    


    public FindStrInJar(String condition) 
        this.condition = condition;
    

    public FindStrInJar(String condition, String exclude) 
        this.condition = condition;
    


    public void setCondition(String condition) 
        this.condition = condition;
    

    public List<String> find(String dir, boolean recurse) 
        searchDir(dir, recurse);
        return this.jarFiles;
    

    public List<String> getFilenames() 
        return this.jarFiles;
    


    protected String getClassName(ZipEntry entry) 
        StringBuffer className = new StringBuffer(entry.getName().replace("/", "."));
        return className.toString();
    


    protected void searchDir(String dir, boolean recurse) 
        try 
            File d = new File(dir);
            if (!d.isDirectory()) 
                return;
            
            File[] files = d.listFiles();
            for (int i = 0; i < files.length; i++) 
                if (recurse && files[i].isDirectory()) 
                    searchDir(files[i].getAbsolutePath(), true);
                 else 
                    String filename = files[i].getAbsolutePath();
                    if (filename.endsWith(".jar") || filename.endsWith(".zip")) 
                        ZipFile zip = new ZipFile(filename);
                        Enumeration<? extends ZipEntry> entries = zip.entries();
                        while (entries.hasMoreElements()) 
                            ZipEntry entry = entries.nextElement();
                            String thisClassName = getClassName(entry);

                            //按照文件内容搜索文件。搜索扩展名为.class的文件
                            if (thisClassName.lastIndexOf(".class") != -1) 
                                BufferedReader r = new BufferedReader(new InputStreamReader(zip.getInputStream(entry)));
                                while (r.read() != -1) 
                                    String tempStr = r.readLine();
                                    if (null != tempStr && tempStr.indexOf(condition) > -1) 
                                        this.jarFiles.add(filename + "  --->  " + thisClassName);
                                        break;
                                    
                                
                            

                            //按照文件名搜索文件
//                            if (thisClassName.contains(condition)) 
//                                this.jarFiles.add(filename + "  --->  " + thisClassName);
//                            
                            //获取扩展名为properties的文件
//                            if(thisClassName.lastIndexOf("properties")>-1) 
//                              this.jarFiles.add(filename + "  --->  " + thisClassName);
//                            
                        
                        zip.close();
                    
                
            
         catch (Exception e) 
            e.printStackTrace();
        
    


    public static void main(String args[]) 
        FindStrInJar findInJar = new FindStrInJar("example"); //要寻找的字符串
        // windows
//        List<String> jarFiles = findInJar.find("E:/workspace/AccountServiceCenter/lib", true);
		// mac
        List<String> jarFiles = findInJar.find("/Users/xxx/jar文件所在文件夹路径", true);
        if (jarFiles.size() == 0) 
            System.out.println("Not Found");
         else 
            for (int i = 0; i < jarFiles.size(); i++) 
                System.out.println(jarFiles.get(i));