import java.io.File;
import java.io.IOException;
import java.util.Enumeration;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
public class FindClassFromJars
/**
* 查询格式:[查询参数] [关键字..]<br/>
* 查询参数:--help:显示"软件帮助信息";<br/>
* 查询级别{0,1}(默认为3):
* <li>0:完全匹配;</li>
* <li>1:忽略大小写的完全匹配;</li>
* <li>2:模糊匹配;</li>
* <li>3:忽略大小写的模糊匹配.</li>
* @param keys
*/
public static void findKey(String[] keys) {//未考虑将参数写在最后
int length = keys.length;
int level = 3;
File file = new File(".");
if(length == 0)
showHelp();
if(length == 1)
if("--help".equalsIgnoreCase(keys[0]) || "/?".equalsIgnoreCase(keys[0]))
showHelp();
else
findKey(keys, 3, file);
if (length > 1)
try {
level = Integer.parseInt(keys[0]);//转换搜索级别
findKey(keys, level, file);
} catch (NumberFormatException e) {//转换异常,没有输入搜索级别时
if (!"--help".equalsIgnoreCase(keys[0]) && !"/?".equalsIgnoreCase(keys[0]))
findKey(keys, level, file);
else
showHelp();
}
}
private static void showHelp() {
System.out.println("查询格式:[查询参数] [关键字..]\n查询参数:--help:显示\"软件帮助信息\";\n查询级别{0,1,2,3}(默认为3):\n0:完全匹配;\n1:忽略大小写的完全匹配;\n2:模糊匹配;\n3:忽略大小写的模糊匹配.");
}
private static void findKey(String[] keys, int level, File directory) {
for(File file : directory.listFiles()) {
String pathName = file.getName();
if(file.isDirectory())
findKey(keys, level, file);
else if(pathName.toLowerCase().endsWith(".jar"))
try {
String path = file.getPath();
Enumeration<JarEntry> enu = new JarFile(path).entries();
while (enu.hasMoreElements()) {
String fullName = enu.nextElement().getName();
String[] packages = fullName.split("/");
String[] fileName = packages[packages.length - 1].split("\\.");// 类完整名
String packageName = fullName.replace("/", ".");
for (int i = 1; i < keys.length; i++) {// 多参时分为全字匹配与部分匹配
boolean flag = false;
switch (level) {
case 0:
if (fileName[0].equals(keys[i]))// 完全匹配
flag = true;
break;
case 1:
if (fileName[0].equalsIgnoreCase(keys[i]))// 忽略大小写的完全匹配
flag = true;
break;
case 2:
if (packageName.contains(keys[i]))// 模糊匹配
flag = true;
break;
case 3:
if (packageName.toLowerCase().contains(keys[i].toLowerCase()))// 忽略大小写的模糊匹配
flag = true;
break;
}
if (flag)
System.out.println("找到文件" + packageName + ",\n\t" + path + "\n");
}
}
} catch (IOException e) {
System.out.println("error!");
//e.printStackTrace();
//System.out.println(e.getMessage());
}
}
}
public static void main(String[] args) {
findKey(args);
}
}
搜索Jar包中的类或包
猜你喜欢
转载自wangchuanyin.iteye.com/blog/2150804
今日推荐
周排行