java搜索jar包中的指定字符串

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  1 package com.niu.jit;
  2 
  3 import java.io.BufferedReader;
  4 import java.io.File;
  5 import java.io.InputStreamReader;
  6 import java.util.ArrayList;
  7 import java.util.Enumeration;
  8 import java.util.List;
  9 import java.util.zip.ZipEntry;
 10 import java.util.zip.ZipFile;
 11 
 12 /**
 13  * 寻找指定路径下jar包中含特定字符串的文件 15  */
 16 public class FindStrInJar {
 17 
 18     public String condition;  //查询的条件
 19 
 20     public ArrayList<String> jarFiles = new ArrayList<String>();
 21 
 22     public FindStrInJar() {
 23     }
 24 
 25     public FindStrInJar(String condition) {
 26         this.condition = condition;
 27     }
 28 
 29     public FindStrInJar(String condition, String exclude) {
 30         this.condition = condition;
 31     }
 32 
 33     public void setCondition(String condition) {
 34         this.condition = condition;
 35     }
 36 
 37     public List<String> find(String dir, boolean recurse) {
 38         searchDir(dir, recurse);
 39         return this.jarFiles;
 40     }
 41 
 42     public List<String> getFilenames() {
 43         return this.jarFiles;
 44     }
 45 
 46     protected String getClassName(ZipEntry entry) {
 47         StringBuffer className = new StringBuffer(entry.getName().replace("/", "."));
 48         return className.toString();
 49     }
 50 
 51     @SuppressWarnings("unchecked")
 52     protected void searchDir(String dir, boolean recurse) {
 53         try {
 54             File d = new File(dir);
 55             if (!d.isDirectory()) {
 56                 return;
 57             }
 58             File[] files = d.listFiles();
 59             for (int i = 0; i < files.length; i++) {
 60                 if (recurse && files[i].isDirectory()) {
 61                     searchDir(files[i].getAbsolutePath(), true);
 62                 } else {
 63                     String filename = files[i].getAbsolutePath();
 64                     if (filename.endsWith(".jar")||filename.endsWith(".zip")) {
 65                         ZipFile zip = new ZipFile(filename);
 66                         Enumeration entries = zip.entries();
 67                         while (entries.hasMoreElements()) {
 68                             ZipEntry entry = (ZipEntry) entries.nextElement();
 69                             String thisClassName = getClassName(entry);
 70 
 71                             //不搜索扩展名为.class的文件
 72 //                            if(thisClassName.lastIndexOf(".class")==-1){
 73                                 BufferedReader r = new BufferedReader(new InputStreamReader(zip.getInputStream(entry)));
 74                                 while(r.read()!=-1){
 75                                     String tempStr = r.readLine();
 76                                     if(null!=tempStr && tempStr.indexOf(condition)>-1){
 77                                         this.jarFiles.add(filename + "  --->  " + thisClassName);
 78                                         break;
 79                                     }
 80                                 }
 81 //                            }
 82 
 83                         }
 84                     }
 85                 }
 86             }
 87         } catch (Exception e) {
 88             e.printStackTrace();
 89         }
 90     }
 91 
 92     public static void main(String args[]) {
 93         FindStrInJar findInJar = new FindStrInJar("神秘字符串"); //要寻找的字符串
 94         List<String> jarFiles = findInJar.find("D:\\test\\lib", true);
 95         if (jarFiles.size() == 0) {
 96             System.out.println("Not Found");
 97         } else {
 98             for (int i = 0; i < jarFiles.size(); i++) {
 99                 System.out.println(jarFiles.get(i));
100             }
101         }
102     }
103 
104 }

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