Java写入写出Excel操作源码分享-eolink官网

Java写入写出Excel操作源码分享

这两天帮老师做一个数据库，将所有实验交易的数据导入到数据库中，但是不想天天在实验室里面待着，气氛太压抑，就想着先把数据读进EXCEL中，哪天带到实验室导进去

数据原来是这样的，不同的实验有一个专门的文件夹，实验名的文件夹下有不同班级的文件夹，班级文件夹下有该班级日期文件夹，存储的是不同时间下该班做实验的数据EXCEL，原来的EXCEL中没有班级和时间，现在需要通过读取EXCEL名以及班级名来将该信息作为一列，加入到EXCEL中。

下面是源代码，嘿嘿，顺便还做了一个可视化窗口。

类ExcelRead：

import java.awt.List;

import java.io.ByteArrayOutputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStream;

import java.text.DecimalFormat;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import org.apache.poi.hssf.usermodel.HSSFCell;

import org.apache.poi.hssf.usermodel.HSSFDateUtil;

import org.apache.poi.hssf.usermodel.HSSFRow;

import org.apache.poi.hssf.usermodel.HSSFSheet;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import org.apache.poi.xssf.usermodel.XSSFCell;

import org.apache.poi.xssf.usermodel.XSSFRow;

import org.apache.poi.xssf.usermodel.XSSFSheet;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class ExcelRead {

String path;

public String getPath() {

return path;

MTzzbnlH}

public void setPath(String path) {

this.path = path;

}

//默认单元格内容为数字时格式

private static DecimalFormat df = new DecimalFormat("0");

// 默认单元格格式化日期字符串

private static SimpleDateFormat sdf = new SimpleDateFormat( "yyyy-MM-dd HH:mm:ss");

// 格式化数字

private static DecimalFormat nf = new DecimalFormat("0.00");

public static ArrayList> readExcel(File file){

if(file == null){

return null;

}

if(file.getName().endsWith("xlsx")){

//处理ecxel2007

return readExcel2007(file);

} else{

//处理ecxel2003

return readExcel2003(file);

}

* @return 将返回结果存储在ArrayList内，存储结构与二位数组类似

* lists.get(0).get(0)表示过去Excel中0行0列单元格

public static ArrayList> readExcel2003(File file){

try{

ArrayList> rowList = new ArrayList>();

ArrayList

HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream(file));

HSSFSheet sheet = wb.getSheetAt(0);

HSSFRow row;

HSSFCell cell;

Object value;

for (int i = sheet.getFirstRowNum() , rowCount = 0; rowCount < sheet.getPhysicalNumberOfRows() ; i++ ){

row = sheet.getRow(i);

colList = new ArrayList

if(row == null){

//当读取行为空时

if(i != sheet.getPhysicalNumberOfRows()){

//判断是否是最后一行

rowList.add(colList);

}

continue;

} else{

rowCount++;

}

for ( int j = row.getFirstCellNum() ; j <= row.getLastCellNum() ;j++){

cell = row.getCell(j);

if(cell == null || cell.getCellType() == HSSFCell.CELL_TYPE_BLANK){

//当该单元格为空

if(j != row.getLastCellNum()){

//判断是否是该行中最后一个单元格

colList.add("");

}

continue;

}

switch(cell.getCellType()){

case XSSFCell.CELL_TYPE_STRING:

//System.out.println(i + "行" + j + " 列 is String type");

value = cell.getStringCellValue();

break;

case XSSFCell.CELL_TYPE_NUMERIC:

if ("@".equals(cell.getCellStyle().getDataFormatStringMTzzbnlH())) {

value = df.format(cell.getNumericCellValue());

} else if ("General".equals(cell.getCellStyle()

.getDataFormatString())) {

value = nf.format(cell.getNumericCellValue());

} else {

value = sdf.format(HSSFDateUtil.getJavaDate(cell

.getNumericCellValue()));

}

// System.out.println(i + "行" + j

// + " 列 is Number type ; DateFormt:"

// + value.toString());

break;

case XSSFCell.CELL_TYPE_BOOLEAN:

//System.out.println(i + "行" + j + " 列 is Boolean type");

value = Boolean.valueOf(cell.getBooleanCellValue());

break;

case XSSFCell.CELL_TYPE_BLANK:

//System.out.println(i + "行" + j + " 列 is Blank type");

value = "";

break;

default:

//System.out.println(i + "行" + j + " 列 is default type");

value = cell.toString();

}

// end switch

colList.add(value);

}

//end for j

rowList.add(colList);

}

//end for i

return rowList;

}

catch(Exception e){

return null;

}

public static ArrayList> readExcel2007(File file){

try{

ArrayList> rowList = new ArrayList>();

ArrayList

XSSFWorkbook wb = new XSSFWorkbook(new FileInputStream(file));

XSSFSheet sheet = wb.getSheetAt(0);

XSSFRow row;

XSSFCell cell;

Object value;

for (int i = sheet.getFirstRowNum() , rowCount = 0; rowCount < sheet.getPhysicalNumberOfRows() ; i++ ){

row = sheet.getRow(i);

colList = new ArrayList

if(row == null){

//当读取行为空时

if(i != sheet.getPhysicalNumberOfRows()){

//判断是否是最后一行

rowList.add(colList);

}

continue;

} else{

rowCount++;

}

for ( int j = row.getFirstCellNum() ; j <= row.getLastCellNum() ;j++){

cell = row.getCell(j);

if(cell == null || cell.getCellType() == HSSFCell.CELL_TYPE_BLANK){

//当该单元格为空

if(j != row.getLastCellNum()){

//判断是否是该行中最后一个单元格

colList.add("");

}

continue;

}

switch(cell.getCellType()){

case XSSFCell.CELL_TYPE_STRING:

//System.out.println(i + "行" + j + " 列 is String type");

value = cell.getStringCellValue();

break;

case XSSFCell.CELL_TYPE_NUMERIC:

if ("@".equals(cell.getCellStyle().getDataFormatString())) {

value = df.format(cell.getNumericCellValue());

} else if ("General".equals(cell.getCellStyle()

.getDataFormatString())) {

value = nf.format(cell.getNumericCellValue());

} else {

value = sdf.format(HSSFDateUtil.getJavaDate(cell

.getNumericCellValue()));

}

// System.out.println(i + "行" + j

// + " 列 is Number type ; DateFormt:"

// + value.toString());

break;

case XSSFCell.CELL_TYPE_BOOLEAN:

//System.out.println(i + "行" + j + " 列 is Boolean type");

value = Boolean.valueOf(cell.getBooleanCellValue());

break;

case XSSFCell.CELL_TYPE_BLANK:

//System.out.println(i + "行" + j + " 列 is Blank type");

value = "";

break;

default:

//System.out.println(i + "行" + j + " 列 is default type");

value = cell.toString();

}

// end switch

colList.add(value);

}

//end for j

rowList.add(colList);

}

//end for i

return rowList;

}

catch(Exception e){

System.out.println("exception");

return null;

}

public static ArrayList getFiles(String filePath){

File root = new File(filePath);

File[]files = root.listFiles();

ArrayList filelist = new ArrayList();

for (File file:files){

if(file.isDirectory()){

filelist.addAll(getFiles(file.getAbsolutePath()));

} else{

String newpath = file.getAbsolutePath();

if(newpath.contains("交易记录")){

filelist.add(newpath);

}

return filelist;

}

public void readBook(String path3) {

String filePath = path3;

ArrayList filelist = getFiles(filePath);

ArrayListresultAll = new ArrayList();

for (int i = 0;i

String path = (String) filelist.get(i);

System.out.println(path);

ArrayListresult = Graph(path);

String[] path2 = path.split("\\\\");

int num = result.get(0).size();

ArrayList result2 = new ArrayList();

for (int j = 0;j

result2.add(path2[path2.length-2]);

}

ArrayList result3 = new ArrayList();

for (int j = 0;j

result3.add(path2[path2.length-3]);

}

result.add(result2);

result.add(result3);

if(resultAll.size()==0){

resultAll = result;

} else{

for (int j = 0;j

for (int k = 0;k

resultAll.get(j).add(result.get(j).get(k));

}

writeExcel(resultAll,"D:/a.xls");

}

public static void writeExcel(ArrayList result,String path){

if(result == null){

return;

}

HSSFWorkbook wb = new HSSFWorkbook();

HSSFSheet sheet = wb.createSheet("sheet1");

for (int i = 0 ;i < result.get(0).size() ; i++){

HSSFRow row = sheet.createRow(i);

for (int j = 0; j < result.size() ; j ++){

HSSFCell cell = row.createCell((short)j);

cell.setCellValue(result.get(j).get(i).toString());

}

ByteArrayOutputStream os = new ByteArrayOutputStream();

try

{

wb.write(os);

}

catch (IOException e){

e.printStackTrace();

}

byte[] content = os.toByteArray();

File file = new File(path);

//Excel文件生成后存储的位置。

OutputStream fos = null;

try

{

fos = new FileOutputStream(file);

wb.write(fos);

os.close();

fos.close();

}

catch (Exception e){

e.printStackTrace();

}

public static DecimalFormat getDf() {

return df;

}

public static void setDf(DecimalFormat df) {

ExcelRead.df = df;

}

public static SimpleDateFormat getSdf() {

return sdf;

}

public static void setSdf(SimpleDateFormat sdf) {

ExcelRead.sdf = sdf;

}

public static DecimalFormat getNf() {

return nf;

}

public static void setNf(DecimalFormat nf) {

ExcelRead.nf = nf;

}

public static ArrayList Graph(String path){

File file = new File(path);

ArrayList> result = ExcelRead.readExcel(file);

ArrayListprice = new ArrayList();

//价格序列

ArrayListtime = new ArrayList();

//时间序列

ArrayListbuyList = new ArrayList();

//买方序列

ArrayListsellList = new ArrayList();

//卖方序列

ArrayListvol = new ArrayList();

//成交量

ArrayListShare = new ArrayList();

//股票名字

ArrayListid = new ArrayList();

ArrayListShareid = new ArrayList();

for (int i = 2 ;i < result.size() ;i++){

for (int j = 0;j

//第5列表示价格，第8列表示时间

if(j==0){

String temp = (String) result.get(i).get(j);

id.add(temp);

}

if(j==3){

String temp = (String) result.get(i).get(j);

Shareid.add(temp);

}

if(j==5){

//price.add((String) result.get(i).get(j));

String temp = (String) result.get(i).get(j);

String[] units = temp.split("￥");

price.add(double.valueOf(units[1]));

}

if(j==7){

String temp = (String) result.get(i).get(j);

time.add(temp);

// time.add((String) result.get(i).get(j));

}

if(j==1){

buyList.add((String) result.get(i).get(j));

}

if(j==2){

sellList.add((String) result.get(i).get(j));

}

if(j==6){

vol.add(double.valueOf((String)result.get(i).get(j)));

}

if(j==4){

Share.add((String)result.get(i).get(j));

}

ArrayListresultList = new ArrayList();

resultList.add(Shareid);

resultList.add(id);

resultList.add(buyList);

resultList.add(sellList);

resultList.add(Share);

resultList.add(price);

resultList.add(vol);

resultList.add(time);

return resultList;

}

readExcelBook（做可视化窗口的）：

import java.awt.EventQueue;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.GroupLayout;

import javax.swing.JLabel;

import javax.swing.GroupLayout.Alignment;

import javax.swing.JButton;

import javax.swing.JTextField;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

import java.io.File;

public class readExcelBook {

private JFrame frame;

private JTextField textField;

/**

* Launch the application.

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

readExcelBook window = new readExcelBook();

window.frame.setVisible(true);

}

catch (Exception e) {

e.printStackTrace();

}

);

}

/**

* Create the application.

public readExcelBook() {

initialize();

}

/**

* Initialize the contents of the frame.

private void initialize() {

frame = new JFrame();

frame.setBounds(100, 100, 450, 300);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JButton button = new JButton("\u9009\u62E9\u6587\u4EF6");

button.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

JFileChooser jfc=new JFileChooser();

jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );

jfc.showDialog(new JLabel(), "选择");

File file=jfc.getSelectedFile();

String path = file.getAbsolutePath();

textField.setText(path);

ExcelRead er = new ExcelRead();

er.readBook(path);

}

);

textField = new JTextField();

textField.setColumns(10);

JLabel lbldaxls = new JLabel("\u5199\u5165\u4E86D\u76D8\u4E0B\u7684a.xls\u54C8");

GroupLayout groupLayout = new GroupLayout(frame.getContentPane());

groupLayout.setHorizontalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(26)

.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)

.addComponent(lbldaxls)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, 295, GroupLayout.PREFERRED_SIZE)

.addComponent(button))

.addContainerGap(113, short.MAX_VALUE))

);

groupLayout.setVerticalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(31)

.addComponent(button)

.addGap(18)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)

.addGap(35)

.addComponent(lbldaxls)

.addContainerGap(119, short.MAX_VALUE))

);

frame.getContentPane().setLayout(groupLayout);

}

运行结果：

总结

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String path = (String) filelist.get(i);

System.out.println(path);

ArrayListresult = Graph(path);

String[] path2 = path.split("\\\\");

int num = result.get(0).size();

ArrayList result2 = new ArrayList();

for (int j = 0;j

result2.add(path2[path2.length-2]);

}

ArrayList result3 = new ArrayList();

for (int j = 0;j

result3.add(path2[path2.length-3]);

}

result.add(result2);

result.add(result3);

if(resultAll.size()==0){

resultAll = result;

} else{

for (int j = 0;j

for (int k = 0;k

resultAll.get(j).add(result.get(j).get(k));

}

writeExcel(resultAll,"D:/a.xls");

}

public static void writeExcel(ArrayList result,String path){

if(result == null){

return;

}

HSSFWorkbook wb = new HSSFWorkbook();

HSSFSheet sheet = wb.createSheet("sheet1");

for (int i = 0 ;i < result.get(0).size() ; i++){

HSSFRow row = sheet.createRow(i);

for (int j = 0; j < result.size() ; j ++){

HSSFCell cell = row.createCell((short)j);

cell.setCellValue(result.get(j).get(i).toString());

}

ByteArrayOutputStream os = new ByteArrayOutputStream();

try

{

wb.write(os);

}

catch (IOException e){

e.printStackTrace();

}

byte[] content = os.toByteArray();

File file = new File(path);

//Excel文件生成后存储的位置。

OutputStream fos = null;

try

{

fos = new FileOutputStream(file);

wb.write(fos);

os.close();

fos.close();

}

catch (Exception e){

e.printStackTrace();

}

public static DecimalFormat getDf() {

return df;

}

public static void setDf(DecimalFormat df) {

ExcelRead.df = df;

}

public static SimpleDateFormat getSdf() {

return sdf;

}

public static void setSdf(SimpleDateFormat sdf) {

ExcelRead.sdf = sdf;

}

public static DecimalFormat getNf() {

return nf;

}

public static void setNf(DecimalFormat nf) {

ExcelRead.nf = nf;

}

public static ArrayList Graph(String path){

File file = new File(path);

ArrayList> result = ExcelRead.readExcel(file);

ArrayListprice = new ArrayList();

//价格序列

ArrayListtime = new ArrayList();

//时间序列

ArrayListbuyList = new ArrayList();

//买方序列

ArrayListsellList = new ArrayList();

//卖方序列

ArrayListvol = new ArrayList();

//成交量

ArrayListShare = new ArrayList();

//股票名字

ArrayListid = new ArrayList();

ArrayListShareid = new ArrayList();

for (int i = 2 ;i < result.size() ;i++){

for (int j = 0;j

//第5列表示价格，第8列表示时间

if(j==0){

String temp = (String) result.get(i).get(j);

id.add(temp);

}

if(j==3){

String temp = (String) result.get(i).get(j);

Shareid.add(temp);

}

if(j==5){

//price.add((String) result.get(i).get(j));

String temp = (String) result.get(i).get(j);

String[] units = temp.split("￥");

price.add(double.valueOf(units[1]));

}

if(j==7){

String temp = (String) result.get(i).get(j);

time.add(temp);

// time.add((String) result.get(i).get(j));

}

if(j==1){

buyList.add((String) result.get(i).get(j));

}

if(j==2){

sellList.add((String) result.get(i).get(j));

}

if(j==6){

vol.add(double.valueOf((String)result.get(i).get(j)));

}

if(j==4){

Share.add((String)result.get(i).get(j));

}

ArrayListresultList = new ArrayList();

resultList.add(Shareid);

resultList.add(id);

resultList.add(buyList);

resultList.add(sellList);

resultList.add(Share);

resultList.add(price);

resultList.add(vol);

resultList.add(time);

return resultList;

}

readExcelBook（做可视化窗口的）：

import java.awt.EventQueue;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.GroupLayout;

import javax.swing.JLabel;

import javax.swing.GroupLayout.Alignment;

import javax.swing.JButton;

import javax.swing.JTextField;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

import java.io.File;

public class readExcelBook {

private JFrame frame;

private JTextField textField;

/**

* Launch the application.

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

readExcelBook window = new readExcelBook();

window.frame.setVisible(true);

}

catch (Exception e) {

e.printStackTrace();

}

);

}

/**

* Create the application.

public readExcelBook() {

initialize();

}

/**

* Initialize the contents of the frame.

private void initialize() {

frame = new JFrame();

frame.setBounds(100, 100, 450, 300);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JButton button = new JButton("\u9009\u62E9\u6587\u4EF6");

button.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

JFileChooser jfc=new JFileChooser();

jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );

jfc.showDialog(new JLabel(), "选择");

File file=jfc.getSelectedFile();

String path = file.getAbsolutePath();

textField.setText(path);

ExcelRead er = new ExcelRead();

er.readBook(path);

}

);

textField = new JTextField();

textField.setColumns(10);

JLabel lbldaxls = new JLabel("\u5199\u5165\u4E86D\u76D8\u4E0B\u7684a.xls\u54C8");

GroupLayout groupLayout = new GroupLayout(frame.getContentPane());

groupLayout.setHorizontalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(26)

.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)

.addComponent(lbldaxls)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, 295, GroupLayout.PREFERRED_SIZE)

.addComponent(button))

.addContainerGap(113, short.MAX_VALUE))

);

groupLayout.setVerticalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(31)

.addComponent(button)

.addGap(18)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)

.addGap(35)

.addComponent(lbldaxls)

.addContainerGap(119, short.MAX_VALUE))

);

frame.getContentPane().setLayout(groupLayout);

}

运行结果：

总结

result2.add(path2[path2.length-2]);

}

ArrayList result3 = new ArrayList();

for (int j = 0;j

result3.add(path2[path2.length-3]);

}

result.add(result2);

result.add(result3);

if(resultAll.size()==0){

resultAll = result;

} else{

for (int j = 0;j

for (int k = 0;k

resultAll.get(j).add(result.get(j).get(k));

}

writeExcel(resultAll,"D:/a.xls");

}

public static void writeExcel(ArrayList result,String path){

if(result == null){

return;

}

HSSFWorkbook wb = new HSSFWorkbook();

HSSFSheet sheet = wb.createSheet("sheet1");

for (int i = 0 ;i < result.get(0).size() ; i++){

HSSFRow row = sheet.createRow(i);

for (int j = 0; j < result.size() ; j ++){

HSSFCell cell = row.createCell((short)j);

cell.setCellValue(result.get(j).get(i).toString());

}

ByteArrayOutputStream os = new ByteArrayOutputStream();

try

{

wb.write(os);

}

catch (IOException e){

e.printStackTrace();

}

byte[] content = os.toByteArray();

File file = new File(path);

//Excel文件生成后存储的位置。

OutputStream fos = null;

try

{

fos = new FileOutputStream(file);

wb.write(fos);

os.close();

fos.close();

}

catch (Exception e){

e.printStackTrace();

}

public static DecimalFormat getDf() {

return df;

}

public static void setDf(DecimalFormat df) {

ExcelRead.df = df;

}

public static SimpleDateFormat getSdf() {

return sdf;

}

public static void setSdf(SimpleDateFormat sdf) {

ExcelRead.sdf = sdf;

}

public static DecimalFormat getNf() {

return nf;

}

public static void setNf(DecimalFormat nf) {

ExcelRead.nf = nf;

}

public static ArrayList Graph(String path){

File file = new File(path);

ArrayList> result = ExcelRead.readExcel(file);

ArrayListprice = new ArrayList();

//价格序列

ArrayListtime = new ArrayList();

//时间序列

ArrayListbuyList = new ArrayList();

//买方序列

ArrayListsellList = new ArrayList();

//卖方序列

ArrayListvol = new ArrayList();

//成交量

ArrayListShare = new ArrayList();

//股票名字

ArrayListid = new ArrayList();

ArrayListShareid = new ArrayList();

for (int i = 2 ;i < result.size() ;i++){

for (int j = 0;j

//第5列表示价格，第8列表示时间

if(j==0){

String temp = (String) result.get(i).get(j);

id.add(temp);

}

if(j==3){

String temp = (String) result.get(i).get(j);

Shareid.add(temp);

}

if(j==5){

//price.add((String) result.get(i).get(j));

String temp = (String) result.get(i).get(j);

String[] units = temp.split("￥");

price.add(double.valueOf(units[1]));

}

if(j==7){

String temp = (String) result.get(i).get(j);

time.add(temp);

// time.add((String) result.get(i).get(j));

}

if(j==1){

buyList.add((String) result.get(i).get(j));

}

if(j==2){

sellList.add((String) result.get(i).get(j));

}

if(j==6){

vol.add(double.valueOf((String)result.get(i).get(j)));

}

if(j==4){

Share.add((String)result.get(i).get(j));

}

ArrayListresultList = new ArrayList();

resultList.add(Shareid);

resultList.add(id);

resultList.add(buyList);

resultList.add(sellList);

resultList.add(Share);

resultList.add(price);

resultList.add(vol);

resultList.add(time);

return resultList;

}

readExcelBook（做可视化窗口的）：

import java.awt.EventQueue;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.GroupLayout;

import javax.swing.JLabel;

import javax.swing.GroupLayout.Alignment;

import javax.swing.JButton;

import javax.swing.JTextField;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

import java.io.File;

public class readExcelBook {

private JFrame frame;

private JTextField textField;

/**

* Launch the application.

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

readExcelBook window = new readExcelBook();

window.frame.setVisible(true);

}

catch (Exception e) {

e.printStackTrace();

}

);

}

/**

* Create the application.

public readExcelBook() {

initialize();

}

/**

* Initialize the contents of the frame.

private void initialize() {

frame = new JFrame();

frame.setBounds(100, 100, 450, 300);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JButton button = new JButton("\u9009\u62E9\u6587\u4EF6");

button.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

JFileChooser jfc=new JFileChooser();

jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );

jfc.showDialog(new JLabel(), "选择");

File file=jfc.getSelectedFile();

String path = file.getAbsolutePath();

textField.setText(path);

ExcelRead er = new ExcelRead();

er.readBook(path);

}

);

textField = new JTextField();

textField.setColumns(10);

JLabel lbldaxls = new JLabel("\u5199\u5165\u4E86D\u76D8\u4E0B\u7684a.xls\u54C8");

GroupLayout groupLayout = new GroupLayout(frame.getContentPane());

groupLayout.setHorizontalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(26)

.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)

.addComponent(lbldaxls)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, 295, GroupLayout.PREFERRED_SIZE)

.addComponent(button))

.addContainerGap(113, short.MAX_VALUE))

);

groupLayout.setVerticalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(31)

.addComponent(button)

.addGap(18)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)

.addGap(35)

.addComponent(lbldaxls)

.addContainerGap(119, short.MAX_VALUE))

);

frame.getContentPane().setLayout(groupLayout);

}

运行结果：

总结

result3.add(path2[path2.length-3]);

}

result.add(result2);

result.add(result3);

if(resultAll.size()==0){

resultAll = result;

} else{

for (int j = 0;j

for (int k = 0;k

resultAll.get(j).add(result.get(j).get(k));

}

writeExcel(resultAll,"D:/a.xls");

}

public static void writeExcel(ArrayList result,String path){

if(result == null){

return;

}

HSSFWorkbook wb = new HSSFWorkbook();

HSSFSheet sheet = wb.createSheet("sheet1");

for (int i = 0 ;i < result.get(0).size() ; i++){

HSSFRow row = sheet.createRow(i);

for (int j = 0; j < result.size() ; j ++){

HSSFCell cell = row.createCell((short)j);

cell.setCellValue(result.get(j).get(i).toString());

}

ByteArrayOutputStream os = new ByteArrayOutputStream();

try

{

wb.write(os);

}

catch (IOException e){

e.printStackTrace();

}

byte[] content = os.toByteArray();

File file = new File(path);

//Excel文件生成后存储的位置。

OutputStream fos = null;

try

{

fos = new FileOutputStream(file);

wb.write(fos);

os.close();

fos.close();

}

catch (Exception e){

e.printStackTrace();

}

public static DecimalFormat getDf() {

return df;

}

public static void setDf(DecimalFormat df) {

ExcelRead.df = df;

}

public static SimpleDateFormat getSdf() {

return sdf;

}

public static void setSdf(SimpleDateFormat sdf) {

ExcelRead.sdf = sdf;

}

public static DecimalFormat getNf() {

return nf;

}

public static void setNf(DecimalFormat nf) {

ExcelRead.nf = nf;

}

public static ArrayList Graph(String path){

File file = new File(path);

ArrayList> result = ExcelRead.readExcel(file);

ArrayListprice = new ArrayList();

//价格序列

ArrayListtime = new ArrayList();

//时间序列

ArrayListbuyList = new ArrayList();

//买方序列

ArrayListsellList = new ArrayList();

//卖方序列

ArrayListvol = new ArrayList();

//成交量

ArrayListShare = new ArrayList();

//股票名字

ArrayListid = new ArrayList();

ArrayListShareid = new ArrayList();

for (int i = 2 ;i < result.size() ;i++){

for (int j = 0;j

//第5列表示价格，第8列表示时间

if(j==0){

String temp = (String) result.get(i).get(j);

id.add(temp);

}

if(j==3){

String temp = (String) result.get(i).get(j);

Shareid.add(temp);

}

if(j==5){

//price.add((String) result.get(i).get(j));

String temp = (String) result.get(i).get(j);

String[] units = temp.split("￥");

price.add(double.valueOf(units[1]));

}

if(j==7){

String temp = (String) result.get(i).get(j);

time.add(temp);

// time.add((String) result.get(i).get(j));

}

if(j==1){

buyList.add((String) result.get(i).get(j));

}

if(j==2){

sellList.add((String) result.get(i).get(j));

}

if(j==6){

vol.add(double.valueOf((String)result.get(i).get(j)));

}

if(j==4){

Share.add((String)result.get(i).get(j));

}

ArrayListresultList = new ArrayList();

resultList.add(Shareid);

resultList.add(id);

resultList.add(buyList);

resultList.add(sellList);

resultList.add(Share);

resultList.add(price);

resultList.add(vol);

resultList.add(time);

return resultList;

}

readExcelBook（做可视化窗口的）：

import java.awt.EventQueue;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.GroupLayout;

import javax.swing.JLabel;

import javax.swing.GroupLayout.Alignment;

import javax.swing.JButton;

import javax.swing.JTextField;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

import java.io.File;

public class readExcelBook {

private JFrame frame;

private JTextField textField;

/**

* Launch the application.

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

readExcelBook window = new readExcelBook();

window.frame.setVisible(true);

}

catch (Exception e) {

e.printStackTrace();

}

);

}

/**

* Create the application.

public readExcelBook() {

initialize();

}

/**

* Initialize the contents of the frame.

private void initialize() {

frame = new JFrame();

frame.setBounds(100, 100, 450, 300);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JButton button = new JButton("\u9009\u62E9\u6587\u4EF6");

button.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

JFileChooser jfc=new JFileChooser();

jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );

jfc.showDialog(new JLabel(), "选择");

File file=jfc.getSelectedFile();

String path = file.getAbsolutePath();

textField.setText(path);

ExcelRead er = new ExcelRead();

er.readBook(path);

}

);

textField = new JTextField();

textField.setColumns(10);

JLabel lbldaxls = new JLabel("\u5199\u5165\u4E86D\u76D8\u4E0B\u7684a.xls\u54C8");

GroupLayout groupLayout = new GroupLayout(frame.getContentPane());

groupLayout.setHorizontalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(26)

.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)

.addComponent(lbldaxls)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, 295, GroupLayout.PREFERRED_SIZE)

.addComponent(button))

.addContainerGap(113, short.MAX_VALUE))

);

groupLayout.setVerticalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(31)

.addComponent(button)

.addGap(18)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)

.addGap(35)

.addComponent(lbldaxls)

.addContainerGap(119, short.MAX_VALUE))

);

frame.getContentPane().setLayout(groupLayout);

}

运行结果：

总结

for (int k = 0;k

resultAll.get(j).add(result.get(j).get(k));

}

writeExcel(resultAll,"D:/a.xls");

}

public static void writeExcel(ArrayList result,String path){

if(result == null){

return;

}

HSSFWorkbook wb = new HSSFWorkbook();

HSSFSheet sheet = wb.createSheet("sheet1");

for (int i = 0 ;i < result.get(0).size() ; i++){

HSSFRow row = sheet.createRow(i);

for (int j = 0; j < result.size() ; j ++){

HSSFCell cell = row.createCell((short)j);

cell.setCellValue(result.get(j).get(i).toString());

}

ByteArrayOutputStream os = new ByteArrayOutputStream();

try

{

wb.write(os);

}

catch (IOException e){

e.printStackTrace();

}

byte[] content = os.toByteArray();

File file = new File(path);

//Excel文件生成后存储的位置。

OutputStream fos = null;

try

{

fos = new FileOutputStream(file);

wb.write(fos);

os.close();

fos.close();

}

catch (Exception e){

e.printStackTrace();

}

public static DecimalFormat getDf() {

return df;

}

public static void setDf(DecimalFormat df) {

ExcelRead.df = df;

}

public static SimpleDateFormat getSdf() {

return sdf;

}

public static void setSdf(SimpleDateFormat sdf) {

ExcelRead.sdf = sdf;

}

public static DecimalFormat getNf() {

return nf;

}

public static void setNf(DecimalFormat nf) {

ExcelRead.nf = nf;

}

public static ArrayList Graph(String path){

File file = new File(path);

ArrayList> result = ExcelRead.readExcel(file);

ArrayListprice = new ArrayList();

//价格序列

ArrayListtime = new ArrayList();

//时间序列

ArrayListbuyList = new ArrayList();

//买方序列

ArrayListsellList = new ArrayList();

//卖方序列

ArrayListvol = new ArrayList();

//成交量

ArrayListShare = new ArrayList();

//股票名字

ArrayListid = new ArrayList();

ArrayListShareid = new ArrayList();

for (int i = 2 ;i < result.size() ;i++){

for (int j = 0;j

//第5列表示价格，第8列表示时间

if(j==0){

String temp = (String) result.get(i).get(j);

id.add(temp);

}

if(j==3){

String temp = (String) result.get(i).get(j);

Shareid.add(temp);

}

if(j==5){

//price.add((String) result.get(i).get(j));

String temp = (String) result.get(i).get(j);

String[] units = temp.split("￥");

price.add(double.valueOf(units[1]));

}

if(j==7){

String temp = (String) result.get(i).get(j);

time.add(temp);

// time.add((String) result.get(i).get(j));

}

if(j==1){

buyList.add((String) result.get(i).get(j));

}

if(j==2){

sellList.add((String) result.get(i).get(j));

}

if(j==6){

vol.add(double.valueOf((String)result.get(i).get(j)));

}

if(j==4){

Share.add((String)result.get(i).get(j));

}

ArrayListresultList = new ArrayList();

resultList.add(Shareid);

resultList.add(id);

resultList.add(buyList);

resultList.add(sellList);

resultList.add(Share);

resultList.add(price);

resultList.add(vol);

resultList.add(time);

return resultList;

}

readExcelBook（做可视化窗口的）：

import java.awt.EventQueue;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.GroupLayout;

import javax.swing.JLabel;

import javax.swing.GroupLayout.Alignment;

import javax.swing.JButton;

import javax.swing.JTextField;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

import java.io.File;

public class readExcelBook {

private JFrame frame;

private JTextField textField;

/**

* Launch the application.

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

readExcelBook window = new readExcelBook();

window.frame.setVisible(true);

}

catch (Exception e) {

e.printStackTrace();

}

);

}

/**

* Create the application.

public readExcelBook() {

initialize();

}

/**

* Initialize the contents of the frame.

private void initialize() {

frame = new JFrame();

frame.setBounds(100, 100, 450, 300);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JButton button = new JButton("\u9009\u62E9\u6587\u4EF6");

button.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

JFileChooser jfc=new JFileChooser();

jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );

jfc.showDialog(new JLabel(), "选择");

File file=jfc.getSelectedFile();

String path = file.getAbsolutePath();

textField.setText(path);

ExcelRead er = new ExcelRead();

er.readBook(path);

}

);

textField = new JTextField();

textField.setColumns(10);

JLabel lbldaxls = new JLabel("\u5199\u5165\u4E86D\u76D8\u4E0B\u7684a.xls\u54C8");

GroupLayout groupLayout = new GroupLayout(frame.getContentPane());

groupLayout.setHorizontalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(26)

.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)

.addComponent(lbldaxls)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, 295, GroupLayout.PREFERRED_SIZE)

.addComponent(button))

.addContainerGap(113, short.MAX_VALUE))

);

groupLayout.setVerticalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(31)

.addComponent(button)

.addGap(18)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)

.addGap(35)

.addComponent(lbldaxls)

.addContainerGap(119, short.MAX_VALUE))

);

frame.getContentPane().setLayout(groupLayout);

}

运行结果：

总结

resultAll.get(j).add(result.get(j).get(k));

}

writeExcel(resultAll,"D:/a.xls");

}

public static void writeExcel(ArrayList result,String path){

if(result == null){

return;

}

HSSFWorkbook wb = new HSSFWorkbook();

HSSFSheet sheet = wb.createSheet("sheet1");

for (int i = 0 ;i < result.get(0).size() ; i++){

HSSFRow row = sheet.createRow(i);

for (int j = 0; j < result.size() ; j ++){

HSSFCell cell = row.createCell((short)j);

cell.setCellValue(result.get(j).get(i).toString());

}

ByteArrayOutputStream os = new ByteArrayOutputStream();

try

{

wb.write(os);

}

catch (IOException e){

e.printStackTrace();

}

byte[] content = os.toByteArray();

File file = new File(path);

//Excel文件生成后存储的位置。

OutputStream fos = null;

try

{

fos = new FileOutputStream(file);

wb.write(fos);

os.close();

fos.close();

}

catch (Exception e){

e.printStackTrace();

}

public static DecimalFormat getDf() {

return df;

}

public static void setDf(DecimalFormat df) {

ExcelRead.df = df;

}

public static SimpleDateFormat getSdf() {

return sdf;

}

public static void setSdf(SimpleDateFormat sdf) {

ExcelRead.sdf = sdf;

}

public static DecimalFormat getNf() {

return nf;

}

public static void setNf(DecimalFormat nf) {

ExcelRead.nf = nf;

}

public static ArrayList Graph(String path){

File file = new File(path);

ArrayList> result = ExcelRead.readExcel(file);

ArrayListprice = new ArrayList();

//价格序列

ArrayListtime = new ArrayList();

//时间序列

ArrayListbuyList = new ArrayList();

//买方序列

ArrayListsellList = new ArrayList();

//卖方序列

ArrayListvol = new ArrayList();

//成交量

ArrayListShare = new ArrayList();

//股票名字

ArrayListid = new ArrayList();

ArrayListShareid = new ArrayList();

for (int i = 2 ;i < result.size() ;i++){

for (int j = 0;j

//第5列表示价格，第8列表示时间

if(j==0){

String temp = (String) result.get(i).get(j);

id.add(temp);

}

if(j==3){

String temp = (String) result.get(i).get(j);

Shareid.add(temp);

}

if(j==5){

//price.add((String) result.get(i).get(j));

String temp = (String) result.get(i).get(j);

String[] units = temp.split("￥");

price.add(double.valueOf(units[1]));

}

if(j==7){

String temp = (String) result.get(i).get(j);

time.add(temp);

// time.add((String) result.get(i).get(j));

}

if(j==1){

buyList.add((String) result.get(i).get(j));

}

if(j==2){

sellList.add((String) result.get(i).get(j));

}

if(j==6){

vol.add(double.valueOf((String)result.get(i).get(j)));

}

if(j==4){

Share.add((String)result.get(i).get(j));

}

ArrayListresultList = new ArrayList();

resultList.add(Shareid);

resultList.add(id);

resultList.add(buyList);

resultList.add(sellList);

resultList.add(Share);

resultList.add(price);

resultList.add(vol);

resultList.add(time);

return resultList;

}

readExcelBook（做可视化窗口的）：

import java.awt.EventQueue;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.GroupLayout;

import javax.swing.JLabel;

import javax.swing.GroupLayout.Alignment;

import javax.swing.JButton;

import javax.swing.JTextField;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

import java.io.File;

public class readExcelBook {

private JFrame frame;

private JTextField textField;

/**

* Launch the application.

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

readExcelBook window = new readExcelBook();

window.frame.setVisible(true);

}

catch (Exception e) {

e.printStackTrace();

}

);

}

/**

* Create the application.

public readExcelBook() {

initialize();

}

/**

* Initialize the contents of the frame.

private void initialize() {

frame = new JFrame();

frame.setBounds(100, 100, 450, 300);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JButton button = new JButton("\u9009\u62E9\u6587\u4EF6");

button.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

JFileChooser jfc=new JFileChooser();

jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );

jfc.showDialog(new JLabel(), "选择");

File file=jfc.getSelectedFile();

String path = file.getAbsolutePath();

textField.setText(path);

ExcelRead er = new ExcelRead();

er.readBook(path);

}

);

textField = new JTextField();

textField.setColumns(10);

JLabel lbldaxls = new JLabel("\u5199\u5165\u4E86D\u76D8\u4E0B\u7684a.xls\u54C8");

GroupLayout groupLayout = new GroupLayout(frame.getContentPane());

groupLayout.setHorizontalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(26)

.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)

.addComponent(lbldaxls)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, 295, GroupLayout.PREFERRED_SIZE)

.addComponent(button))

.addContainerGap(113, short.MAX_VALUE))

);

groupLayout.setVerticalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(31)

.addComponent(button)

.addGap(18)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)

.addGap(35)

.addComponent(lbldaxls)

.addContainerGap(119, short.MAX_VALUE))

);

frame.getContentPane().setLayout(groupLayout);

}

运行结果：

总结

//第5列表示价格，第8列表示时间

if(j==0){

String temp = (String) result.get(i).get(j);

id.add(temp);

}

if(j==3){

String temp = (String) result.get(i).get(j);

Shareid.add(temp);

}

if(j==5){

//price.add((String) result.get(i).get(j));

String temp = (String) result.get(i).get(j);

String[] units = temp.split("￥");

price.add(double.valueOf(units[1]));

}

if(j==7){

String temp = (String) result.get(i).get(j);

time.add(temp);

// time.add((String) result.get(i).get(j));

}

if(j==1){

buyList.add((String) result.get(i).get(j));

}

if(j==2){

sellList.add((String) result.get(i).get(j));

}

if(j==6){

vol.add(double.valueOf((String)result.get(i).get(j)));

}

if(j==4){

Share.add((String)result.get(i).get(j));

}

ArrayListresultList = new ArrayList();

resultList.add(Shareid);

resultList.add(id);

resultList.add(buyList);

resultList.add(sellList);

resultList.add(Share);

resultList.add(price);

resultList.add(vol);

resultList.add(time);

return resultList;

}

readExcelBook（做可视化窗口的）：

import java.awt.EventQueue;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.GroupLayout;

import javax.swing.JLabel;

import javax.swing.GroupLayout.Alignment;

import javax.swing.JButton;

import javax.swing.JTextField;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

import java.io.File;

public class readExcelBook {

private JFrame frame;

private JTextField textField;

/**

* Launch the application.

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

readExcelBook window = new readExcelBook();

window.frame.setVisible(true);

}

catch (Exception e) {

e.printStackTrace();

}

);

}

/**

* Create the application.

public readExcelBook() {

initialize();

}

/**

* Initialize the contents of the frame.

private void initialize() {

frame = new JFrame();

frame.setBounds(100, 100, 450, 300);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JButton button = new JButton("\u9009\u62E9\u6587\u4EF6");

button.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

JFileChooser jfc=new JFileChooser();

jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );

jfc.showDialog(new JLabel(), "选择");

File file=jfc.getSelectedFile();

String path = file.getAbsolutePath();

textField.setText(path);

ExcelRead er = new ExcelRead();

er.readBook(path);

}

);

textField = new JTextField();

textField.setColumns(10);

JLabel lbldaxls = new JLabel("\u5199\u5165\u4E86D\u76D8\u4E0B\u7684a.xls\u54C8");

GroupLayout groupLayout = new GroupLayout(frame.getContentPane());

groupLayout.setHorizontalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(26)

.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)

.addComponent(lbldaxls)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, 295, GroupLayout.PREFERRED_SIZE)

.addComponent(button))

.addContainerGap(113, short.MAX_VALUE))

);

groupLayout.setVerticalGroup(

groupLayout.createParallelGroup(Alignment.LEADING)

.addGroup(groupLayout.createSequentialGroup()

.addGap(31)

.addComponent(button)

.addGap(18)

.addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)

.addGap(35)

.addComponent(lbldaxls)

.addContainerGap(119, short.MAX_VALUE))

);

frame.getContentPane().setLayout(groupLayout);

}

运行结果：

总结

Flask接口签名sign原理与实例代码浅析

274 2023-03-05

Java写入写出Excel操作源码分享

多平台统一管理软件接口，如何实现多平台统一管理软件接口

Flask接口签名sign原理与实例代码浅析

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