java实现读取、删除文件夹下的文件
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2024-03-03 18:06:52
java实现读取、删除文件夹下的文件
package test.com;
import java.io.file;
import java.io.fil...
java实现读取、删除文件夹下的文件
package test.com; import java.io.file; import java.io.filenotfoundexception; import java.io.ioexception; public class readfile { public readfile() { } /** * 读取某个文件夹下的所有文件 */ public static boolean readfile(string filepath) throws filenotfoundexception, ioexception { try { file file = new file(filepath); if (!file.isdirectory()) { // system.out.println("文件"); // system.out.println("path=" + file.getpath()); // system.out.println("absolutepath=" + file.getabsolutepath()); system.out.println(file.getname()); } else if (file.isdirectory()) { string[] filelist = file.list(); for (int i = 0; i < filelist.length; i++) { file readfile = new file(filepath + "\\" + filelist[i]); if (!readfile.isdirectory()) { // system.out.println("path=" + readfile.getpath()); // system.out.println("absolutepath=" // + readfile.getabsolutepath()); system.out.println(readfile.getname()); } else if (readfile.isdirectory()) { readfile(filepath + "\\" + filelist[i]); } } } } catch (filenotfoundexception e) { system.out.println("readfile() exception:" + e.getmessage()); } return true; } /** * 删除某个文件夹下的所有文件夹和文件 */ /*public static boolean deletefile(string delpath) throws filenotfoundexception, ioexception { try { file file = new file(delpath); if (!file.isdirectory()) { system.out.println("1"); file.delete(); } else if (file.isdirectory()) { system.out.println("2"); string[] filelist = file.list(); for (int i = 0; i < filelist.length; i++) { file delfile = new file(delpath + "\\" + filelist[i]); if (!delfile.isdirectory()) { system.out.println("path=" + delfile.getpath()); system.out.println("absolutepath=" + delfile.getabsolutepath()); system.out.println("name=" + delfile.getname()); delfile.delete(); system.out.println("删除文件成功"); } else if (delfile.isdirectory()) { deletefile(delpath + "\\" + filelist[i]); } } file.delete(); } } catch (filenotfoundexception e) { system.out.println("deletefile() exception:" + e.getmessage()); } return true; }*/ public static void main(string[] args) { try { readfile("c:\\users\\sw\\desktop\\skj_h25補正\\004_rcag\\003_skj"); // deletefile("d:/file"); } catch (filenotfoundexception ex) { } catch (ioexception ex) { } system.out.println("ok"); } }
方法二:
package otherstudy; import java.io.file; import java.io.filenotfoundexception; import java.io.ioexception; /** * @classname: testreadfile * @createtime: aug 1, 2014 11:42:44 am * @author: mayi * @description: 读取和删除文件夹下的所有文件 * */ public class testreadfile { /** * 获取工程的webroot的绝对路径 * @return */ string getprojectpath(){ //得到形如"/d:/${workspace}/${projectname}/webroot/web-inf/classes/"的 路径 string path=this.getclass().getresource("/").getpath(); //从路径字符串中取出工程路径 path=path.substring(1, path.indexof("web-inf/classes")); system.out.println("工程路径:"+path); return path; } /** * @param args */ public static void main(string[] args) { testreadfile trf=new testreadfile(); string xmlpath = trf.getprojectpath()+ "testdocs"; try { readallfile(xmlpath); } catch (filenotfoundexception e) { e.printstacktrace(); } catch (ioexception e) { e.printstacktrace(); } } /** * 读取指定路径文件夹下的所有文件 * @param filepath * @return * @throws filenotfoundexception * @throws ioexception */ public static boolean readallfile(string filepath) throws filenotfoundexception, ioexception { try { file file = new file(filepath); if (!file.isdirectory()) { system.out.println("\n文件信息:"); system.out.println("\t相对路径=" + file.getpath()); system.out.println("\t绝对路径=" + file.getabsolutepath()); system.out.println("\t文件全名=" + file.getname()); } else if (file.isdirectory()) { system.out.println("\n文件夹内文件列表信息:"); file[] filelist = file.listfiles(); for (int i = 0; i < filelist.length; i++) { file readfile = filelist[i]; if (!readfile.isdirectory()) { system.out.println("\n\t相对路径=" + readfile.getpath()); system.out.println("\t绝对路径=" + readfile.getabsolutepath()); system.out.println("\t文件全名=" + readfile.getname()); } else if (readfile.isdirectory()) { readallfile(filelist[i].getpath()); } } } } catch (filenotfoundexception e) { system.out.println("readfile() exception:" + e.getmessage()); } return true; } /** * 删除某个文件夹下的所有文件夹和文件 * @param delpath * @return * @throws filenotfoundexception * @throws ioexception */ public static boolean deletefile(string delpath) throws filenotfoundexception, ioexception { try { file file = new file(delpath); if (!file.isdirectory()) { system.out.println("1"); file.delete(); } else if (file.isdirectory()) { system.out.println("2"); file[] filelist = file.listfiles(); for (int i = 0; i < filelist.length; i++) { file delfile = filelist[i]; if (!delfile.isdirectory()) { system.out.println("相对路径=" + delfile.getpath()); system.out.println("绝对路径=" + delfile.getabsolutepath()); system.out.println("文件全名=" + delfile.getname()); delfile.delete(); system.out.println("删除文件成功"); } else if (delfile.isdirectory()) { deletefile(filelist[i].getpath()); } } file.delete(); } } catch (filenotfoundexception e) { system.out.println("deletefile() exception:" + e.getmessage()); } return true; } }
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