一个处理文本数据的python脚本或者java小程序

package comylqtest;

import javaioBufferedReader;

import javaioBufferedWriter;

import javaioFile;

import javaioFileReader;

import javaioFileWriter;

import javaioIOException;

import javautilArrayList;

import javautilHashMap;

import javautilList;

public class Test {

NumSaver saver = new NumSaver();

public static void main(String[] args) throws IOException {

Test test = new Test();

testread("data/filetxt","data/outtxt");

}

public void read(String pathIn, String pathOut) throws IOException {

BufferedReader reader = new BufferedReader(new FileReader(new File(pathIn)));

BufferedWriter writer = new BufferedWriter(new FileWriter(new File(pathOut)));

String tmp = null;

while((tmp = readerreadLine()) != null){

Systemoutprintln(tmp);

String years = getYearRange(tmp);

writerwrite(yearssubstring(1,yearslength() - 1) + "\n");

}

writerwrite(savertoString());

writerflush();

readerclose();

writerclose();

}

public String getYearRange(String tmp){

String[] range = tmpsplit(" \\- ");

List<Integer> years = new ArrayList<>();

for(int i = IntegervalueOf(range[0]); i <= IntegervalueOf(range[1]); i++){

yearsadd(i);

saversave(i);

}

return yearstoString();

}

public class NumSaver extends HashMap<Integer, Integer>{

private static final long serialVersionUID = 8101506360053704633L;

public void save(int num){

thisput(num, null);

}

@Override

public Integer put(Integer key, Integer value) {

return superput(key, superget(key) == null  1 : superget(key) + 1);

}

@Override

public String toString() {

StringBuilder strBuilder = new StringBuilder();

for(Entry<Integer, Integer> entry : thisentrySet()){

strBuilderappend(entrygetKey() + ":" + entrygetValue() + ", ");

}

return strBuildertoString()substring(0,strBuilderlastIndexOf(","));

}

}

}

目录结构如下图所示：

看看是否满足你的要求

给你看一个小程序就懂了。

private static String getSubStr(String str, int num) {

String result = "";

int i = 0;

while(i < num) {

int lastFirst = strlastIndexOf('/');

result = strsubstring(lastFirst) + result;

str = strsubstring(0, lastFirst);

i++;

}

return resultsubstring(1);

} }

想去倒数第几个后面的字符串就把num设成几，str是原来的字符串，返回得到字符串

if (!FileUpload1Exists(savePath))

{

ResponseWrite("对不起！文件不存在！！");

return;

}

这里的FileUpload1，是不是应该写成FileExists，FileUpload1看上去像是控件名称，而对服务器上的文件检查应用的File类。请核实。而FileUpload控件只是用来上传文件的，并不可能对已经存在于服务器上的文件进行访问。

下载代码，可以参考如下：

/// <summary>

/// 下载文件

/// </summary>

/// <param name="path">文件路径</param>

public void downLoad(string path)

{

try

{

string filePath = path;

int temp = filePathLastIndexOf("/") + 1;

string fileName = filePathSubstring(temp, filePathLength - temp);

//FileStream fileStream = new FileStream(ServerMapPath(filePath), FileModeOpen, FileAccessRead, FileShareRead);

FileStream fileStream = new FileStream(filePath, FileModeOpen, FileAccessRead, FileShareRead);

long fileSize = fileStreamLength;

ContextResponseContentType = "application/octet-stream";

ContextResponseAddHeader("Content-Disposition", "attachment; filename=\"" + >

import javaawt;

import javaawtevent;

import javaxswing;

import javatextDateFormat;

import javaxswingevent;

import javaxswingtable;

import javaxswingtree;

import javaxswingfilechooser;

import javaio;

import javautil;

public class WinExplorer extends JFrame implements TreeSelectionListener{

JPanel contentPane=(JPanel)getContentPane();;

JMenuBar menuBar = new JMenuBar();

JMenu menuFile = new JMenu("文件");

JMenuItem menuItemExit = new JMenuItem("退出");

JToolBar toolBar = new JToolBar();

JButton bttUp = new JButton();

Icon iconUp=UIManagergetIcon("FileChooserupFolderIcon");

JLabel statusBar = new JLabel();

DetailTable detailTable = new DetailTable();

JScrollPane sp = new JScrollPane(detailTable);

JSplitPane split = new JSplitPane();

FileSystemView fileSystemView=FileSystemViewgetFileSystemView();

FileNode root=new FileNode(fileSystemViewgetRoots()[0]);

DefaultTreeModel treeModel=new DefaultTreeModel(root);

JTree tree = new JTree(treeModel);

public static void main(String argv[]){

try {

UIManagersetLookAndFeel(UIManagergetSystemLookAndFeelClassName());

Font font=new Font("宋体",FontPLAIN,12);

String names[]={"Label","CheckBox","PopupMenu","TextPane",

"MenuItem","CheckBoxMenuItem","JRadioButtonMenuItem",

"ComboBox","Button","Tree","ScrollPane","TabbedPane",

"EditorPane","TitledBorder","Menu","TextArea","OptionPane",

"MenuBar","ToolBar","ToggleButton","ToolTip","ProgressBar",

"TableHeader","Panel","List","ColorChooser","PasswordField",

"TextField","Table","Label","Viewport","RadioButtonMenuItem",

"RadioButton"};

for(int i=0;i<nameslength;i++)UIManagerput(names[i]+"font",font);

UIManagerput("Labelforeground",Colorblack);

UIManagerput("Borderforeground",Colorblack);

UIManagerput("TitledBordertitleColor",Colorblack);

new WinExplorer()show();

}catch(Exception e){

eprintStackTrace();

}

}

public WinExplorer() {

contentPanesetLayout(new BorderLayout());

Dimension dimension = getToolkit()getScreenSize();

int i = (dimensionwidth - 640) / 2;

int j = (dimensionheight - 480) / 2;

setBounds(i,j,640,480);

setTitle("资源管理器");

setDefaultCloseOperation(JFrameEXIT_ON_CLOSE);

setJMenuBar(menuBar);

statusBarsetText(" ");

menuItemExitaddActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {Systemexit(0);}

});

bttUpsetIcon(iconUp);

bttUpaddActionListener(new javaawteventActionListener() {

public void actionPerformed(ActionEvent e) {

try{

TreePath upPath=treegetSelectionPath()getParentPath();

if(upPath!=null){

treesetSelectionPath(upPath);

treescrollPathToVisible(upPath);

}

}catch(Exception ex){}

}

});

splitsetDividerSize(6);

splitsetLeftComponent(new JScrollPane(tree));

splitsetRightComponent(sp);

splitsetDividerLocation(180);

spgetViewport()setBackground(Colorwhite);

menuFileadd(menuItemExit);

menuBaradd(menuFile);

contentPaneadd(toolBar, BorderLayoutNORTH);

toolBaradd(bttUp, null);

contentPaneadd(statusBar, BorderLayoutSOUTH);

contentPaneadd(split, BorderLayoutCENTER);

treeaddTreeExpansionListener(new MyExpandsionListener());

treesetCellRenderer(new MyTreeCellRenderer());

treeaddTreeSelectionListener(this);

treesetSelectionRow(0);

treesetComponentOrientation(ComponentOrientationUNKNOWN);

}

public void valueChanged(TreeSelectionEvent e){

Object obj=treegetLastSelectedPathComponent();

if(obj==null)return;

else detailTablesetParent(((FileNode)obj)getFile());

}

class MyTreeCellRenderer extends DefaultTreeCellRenderer {

public MyTreeCellRenderer() {}

public Component getTreeCellRendererComponent(JTree tree,Object value,

boolean sel,boolean expanded,boolean leaf,int row,boolean hasFocus) {

supergetTreeCellRendererComponent(tree,value,sel,expanded,leaf,row,hasFocus);

setIcon(fileSystemViewgetSystemIcon(((FileNode)value)getFile()));

return this;

}

}

class MyExpandsionListener implements TreeExpansionListener {

public MyExpandsionListener() {}

public void treeExpanded(TreeExpansionEvent event) {

if(eventgetPath() == null){

return;

}

treesetCursor(new Cursor(CursorWAIT_CURSOR));

TreePath path = eventgetPath();

FileNode node = (FileNode)pathgetLastPathComponent();

nodeexplore();

treeModelnodeStructureChanged(node);

treesetCursor(new Cursor(CursorDEFAULT_CURSOR));

}

public void treeCollapsed(TreeExpansionEvent event) {}

}

class FileNode extends DefaultMutableTreeNode {

private boolean explored = false;

public FileNode(File file) { setUserObject(file); }

public boolean getAllowsChildren() { return isDirectory(); }

public boolean isLeaf() { return !isDirectory();}

public File getFile() { return (File)getUserObject(); }

public boolean isExplored() { return explored; }

public void setExplored(boolean b){ explored=b;}

public boolean isDirectory() { return getFile()isDirectory();}

public String toString() {

File file = (File)getUserObject();

String filename = filetoString();

int index = filenamelastIndexOf(Fileseparator);

return (index != -1 && index != filenamelength()-1)

filenamesubstring(index+1) : filename;

}

public void explore() {

if(!isExplored()) {

File file = getFile();

File[] children = filelistFiles();

if(children==null||childrenlength==0)return;

for(int i=0; i < childrenlength; ++i)

{

File f=children[i];

if(fisDirectory())add(new FileNode(children[i]));

}

explored = true;

}

}

}

class DetailTable extends JTable{

DetailTableModel model=new DetailTableModel();

public DetailTable(){

setModel(model);

setShowGrid(false);

TableColumnModel colModel = getColumnModel();

for (int i=0;i<3;i++)

colModelgetColumn(i)setCellRenderer(new DetailsTableCellRenderer());

setRowHeight(18);

thisaddMouseListener(new MouseAdapter(){

public void mouseClicked(MouseEvent e) {

if(egetClickCount()==2){

for (int i = 0; i <getRowCount(); i++) {

if(getCellRect(i,0,true)contains(egetPoint())){

openSelect();

break;

}

}

}

}

});

}

public void openSelect(){

Object obj=modelgetValueAt(getSelectedRow(),0);

if(obj==null)return;

File f=(File)obj;

if(fisDirectory()){

//expand tree

}else{

//open select file

}

}

public void setParent(File parent){

modelremoveAllRows();

File list[]=parentlistFiles();

if(list==null)return;

Vector vDir=new Vector(),vFile=new Vector();

for (int i = 0; i < listlength; i++) {

if(list[i]isDirectory())vDiradd(list[i]);

else vFileadd(list[i]);

}

sortElements(vFile);

sortElements(vDir);

for (int i = 0; i < vDirsize(); i++)modeladdFile((File)vDirelementAt(i));

for (int i = 0; i < vFilesize(); i++)modeladdFile((File)vFileelementAt(i));

}

public void sortElements(Vector v)

{

for(int i=0;i<vsize();i++)

{

int k=i;

for(int j=i+1;j<vsize();j++){

File fa=(File)velementAt(j);

File fb=(File)velementAt(k);

if(fileSystemViewgetSystemDisplayName(fa)toLowerCase()compareTo(

fileSystemViewgetSystemDisplayName(fb)toLowerCase())<0)k=j;

}

if(k!=i)swap(k,i,v);

}

}

private void swap(int loc1,int loc2,Vector v){

Object tmp=velementAt(loc1);

vsetElementAt(velementAt(loc2),loc1);

vsetElementAt(tmp,loc2);

}

class DetailTableModel extends DefaultTableModel {

public DetailTableModel() {

addColumn("名称");

addColumn("大小");

addColumn("修改时间");

}

public void addFile(File f){

addRow(new Object[]{f,new Double(flength()/1024),

new javasqlDate(flastModified())});

}

public void removeAllRows(){

while(getRowCount()!=0) removeRow(0);

}

public boolean isCellEditable(int row, int column) {return false;}

}

class DetailsTableCellRenderer extends DefaultTableCellRenderer {

DetailsTableCellRenderer() {}

public Component getTableCellRendererComponent(JTable table, Object value,

boolean isSelected, boolean hasFocus, int row, int column) {

if (column == 1){

setHorizontalAlignment(SwingConstantsTRAILING);

isSelected=hasFocus=false;

}else if(column==2){

setHorizontalAlignment(SwingConstantsCENTER);

isSelected=hasFocus=false;

}else setHorizontalAlignment(SwingConstantsLEADING);

return supergetTableCellRendererComponent(

table, value, isSelected, hasFocus, row, column);

}

public void setValue(Object value) {

setIcon(null);

if (value instanceof File) {

File file = (File)value;

setText(fileSystemViewgetSystemDisplayName(file));

setIcon(fileSystemViewgetSystemIcon(file));

}else{

supersetValue(value);

}

}

}

}

}

你双击左面的桌面图标就可以浏览了，别双击字。

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