6/29
package com.taiyusoft;
import java.io.File;
import java.util.*;
public class set3 {
private static LinkedList<Fc> linkedList1 = new LinkedList<>();//读取路径1中的所有的文件
private static LinkedList<Fc> linkedList2 = new LinkedList<>();//读取路径2中的所有的文件
public static void main(String[] args) {
long startTime = System.currentTimeMillis();
String dirName1 = "C:\\Users\\taiyu\\Desktop\\4444\\file1\\";
File file = new File(dirName1);
readFileSum1(file, dirName1);
String dirName2 = "C:\\Users\\taiyu\\Desktop\\file2\\";
File file1 = new File(dirName2);
readFileSum2(file1, dirName2);
Set setOne1 = new LinkedHashSet<Fc>();
setOne1.addAll(linkedList1); //可以通过addAll把list集合转换为set集合
//以数据1为主 增加数据2
List listoneNot1 = new ArrayList<Fc>(); //存放数据一缺失的数据
int setOneSize1 = setOne1.size(); //数据一大小
for (int i = 0; i < linkedList2.size(); i++) {
//数据二
setOne1.add(linkedList2.get(i));
if (setOne1.size() != setOneSize1) {
//判断大小是否改变 ，改变表示数据缺失
listoneNot1.add(linkedList2.get(i)); //存放缺失了哪些数据
setOne1.remove(linkedList2.get(i));
setOneSize1 = setOne1.size(); //更新基础集合大小
}
}
Set setOne2 = new LinkedHashSet<Fc>();
setOne2.addAll(linkedList2); //可以通过addAll把list集合转换为set集合
//以数据2为主 增加数据1
List listoneNot2 = new ArrayList<Fc>(); //存放数据一缺失的数据
int setOneSize2 = setOne2.size();
for (int i = 0; i < linkedList1.size(); i++) {
//数据二
setOne2.add(linkedList1.get(i));
if (setOne2.size() != setOneSize2) {
//判断大小是否改变 ，改变表示数据缺失
listoneNot2.add(linkedList1.get(i)); //存放缺失了哪些数据
setOne2.remove(linkedList1.get(i));
setOneSize2 = setOne2.size(); //更新基础集合大小
}
}
List listoneNot3 = new ArrayList<Fc>(); //存放两者都缺失的文件(即发生修改的文件)
for (int i = 0; i < listoneNot1.size(); i++) {
String path1 = ((Fc) listoneNot1.get(i)).getPath();
for (int j = 0; j < listoneNot2.size(); j++) {
String path2 = ((Fc) listoneNot2.get(j)).getPath();
if (path1.equals(path2)) {
listoneNot3.add(listoneNot2.get(j));
listoneNot2.remove(listoneNot2.get(j));
listoneNot1.remove(listoneNot1.get(i));
}
}
}
//打印数据1缺失数据
if (listoneNot1.size() > 0) {
System.out.println("数据1新增与删除的文件如下");
for (int i = 0; i < listoneNot1.size(); i++) {
System.out.println(dirName1 + "" + ((Fc) listoneNot1.get(0)).getPath());
}
} else {
System.out.println("数据1无新增与删除的文件...");
}
//打印数据2缺失数据
if (listoneNot2.size() > 0) {
System.out.println("数据2新增与删除文件如下");
for (int i = 0; i < listoneNot2.size(); i++) {
System.out.println(dirName2 + "" + ((Fc) listoneNot2.get(i)).getPath());
}
} else {
System.out.println("数据2无新增与删除文件");
}
//打印数据3缺失数据
if (listoneNot3.size() > 0) {
System.out.println("两数据源之间发生修改的文件如下");
for (int i = 0; i < listoneNot3.size(); i++) {
System.out.println(((Fc) listoneNot3.get(i)).getPath());
}
} else {
System.out.println("两数据源之间无发生修改的文件");
}
//结束时间
long endTime = System.currentTimeMillis();
//打印
System.out.println("程序运行时间：" + (double) (endTime - startTime) / 1000 + "s");
}
private static void readFileSum1(File root, String dirName1) {
if (root.exists()) {
if (root.isDirectory()) {
File[] files = root.listFiles();
if (files != null) {
for (int i = 0; i < files.length; i++) {
if (files[i].isFile()) {
// linkedList1.add(files[i].toString().replace(dirName1, ""));
Fc fc = new Fc();
fc.setPath(files[i].toString().replace(dirName1, ""));
fc.setLastmodified(String.valueOf(files[i].lastModified()));
linkedList1.add(fc);
} else if (files[i].isDirectory()) {
readFileSum1(files[i], dirName1);
}
files[i] = null;
}
}
files = null;
} else if (root.isFile()) {
Fc fc = new Fc();
fc.setPath(root.toString().replace(dirName1, ""));
fc.setLastmodified(String.valueOf(root.lastModified()));
linkedList1.add(fc);
// linkedList1.add(root.toString().replace(dirName1, ""));
}
}
}
private static void readFileSum2(File root, String dirName2) {
if (root.exists()) {
if (root.isDirectory()) {
File[] files = root.listFiles();
if (files != null) {
for (int i = 0; i < files.length; i++) {
if (files[i].isFile()) {
Fc fc = new Fc();
fc.setPath(files[i].toString().replace(dirName2, ""));
fc.setLastmodified(String.valueOf(files[i].lastModified()));
linkedList2.add(fc);
// linkedList2.add(files[i].toString().replace(dirName2, ""));
} else if (files[i].isDirectory()) {
readFileSum2(files[i], dirName2);
}
files[i] = null;
}
}
files = null;
} else if (root.isFile()) {
Fc fc = new Fc();
fc.setPath(root.toString().replace(dirName2, ""));
fc.setLastmodified(String.valueOf(root.lastModified()));
linkedList2.add(fc);
// linkedList2.add(root.toString().replace(dirName2, ""));
}
}
}
}
package com.taiyusoft;
public class Fc {
String path;
String lastmodified;
public String getPath() {
return path;
}
public void setPath(String path) {
this.path = path;
}
public String getLastmodified() {
return lastmodified;
}
public void setLastmodified(String lastmodified) {
this.lastmodified = lastmodified;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Fc fc = (Fc) o;
if (path != null ? !path.equals(fc.path) : fc.path != null) return false;
return lastmodified != null ? lastmodified.equals(fc.lastmodified) : fc.lastmodified == null;
}
@Override
public int hashCode() {
int result = path != null ? path.hashCode() : 0;
result = 31 * result + (lastmodified != null ? lastmodified.hashCode() : 0);
return result;
}
}