Java 链接输入的文本信息
现在我有一个GUI,当我点击添加客户时,会弹出一个框,我可以输入诸如姓名、地址等信息。完成后,我单击AddCustomer,它会将信息添加到一个.txt文件中。现在,在原始GUI上有一个“刷新”按钮,当按下该按钮时,它会将信息输入一个名为“NameTextCustomers”的文本框中。它不能这样做。我已经研究了好几个小时试图弄明白。我在代码中有一行写着“NameTextCustomers.setText(“这里的文件信息”);”在我点击刷新按钮之后,“这里的文件信息”这个词就会出现,这样这个部分就可以工作了。我假设代码会插入到那里。我认为这是我必须做的最后一部分,我的代码才能按我希望的方式工作Java 链接输入的文本信息,java,eclipse,Java,Eclipse,现在我有一个GUI,当我点击添加客户时,会弹出一个框,我可以输入诸如姓名、地址等信息。完成后,我单击AddCustomer,它会将信息添加到一个.txt文件中。现在,在原始GUI上有一个“刷新”按钮,当按下该按钮时,它会将信息输入一个名为“NameTextCustomers”的文本框中。它不能这样做。我已经研究了好几个小时试图弄明白。我在代码中有一行写着“NameTextCustomers.setText(“这里的文件信息”);”在我点击刷新按钮之后,“这里的文件信息”这个词就会出现,这样这个部
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import java.util.List;
public class FVolume extends JFrame implements ActionListener{
private JTabbedPane jtabbedPane;
private JPanel Customers;
private List<Customer> customers = new ArrayList<Customer>();
JTextArea NameTextCustomers, ExistTextCustomers, NameTextContractors, ExistTextContractors;
JTextField lengthTextPool, widthTextPool, depthTextPool, volumeTextPool;
public FVolume(){
setTitle("Volume Calculator");
setSize (300, 200);
JPanel topPanel = new JPanel();
topPanel.setLayout( new BorderLayout() );
getContentPane().add( topPanel );
createCustomers();
jtabbedPane = new JTabbedPane();
jtabbedPane.addTab("Customer", Customers);
topPanel.add(jtabbedPane, BorderLayout.CENTER);
}
/* CREATE CUSTOMERS */
public JPanel createCustomers(){
Customers = new JPanel();
Customers.setLayout(null);
NameTextCustomers = new JTextArea("Select Add Customer to Add Customer. Select Refresh to Refresh This Pane.");
NameTextCustomers.setLineWrap(true);
NameTextCustomers.setBounds(10, 10, 390, 150);
Customers.add(NameTextCustomers);
JButton Exit = new JButton("Exit");
Exit.setBounds(30,170,80,20);
Exit.addActionListener(this);
Exit.setBackground(Color.white);
Customers.add(Exit);
JButton AddCustomers = new JButton("Add Customer");
AddCustomers.setBounds(130,170,120,20);
AddCustomers.setBackground(Color.white);
Customers.add(AddCustomers);
JButton Refresh = new JButton("Refresh");
Refresh.setBounds(260,170,80,20);
Refresh.setBackground(Color.white);
Customers.add(Refresh);
ExistTextCustomers = new JTextArea();
ExistTextCustomers.setBounds(10, 200, 390, 60);
ExistTextCustomers.setLineWrap(true);
Customers.add(ExistTextCustomers);
final JTextArea custArea = new JTextArea(6, 30);
final JTextArea ExistTextCustomers;
ExistTextCustomers = new JTextArea(2, 30);
ExistTextCustomers.setLineWrap(true);
ExistTextCustomers.setWrapStyleWord(true);
AddCustomers.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
Customers.add(new Customer("Customer"));
}
});
Customers.add(custArea);
Customers.add(AddCustomers);
Customers.add(Refresh);
Refresh.setMnemonic('R');
Refresh.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
NameTextCustomers.setText ("File Info Here");
try
{
File custOpen = new File("customer.txt");
FileReader custAreaIn = new FileReader(custOpen);
custArea.read(custAreaIn, custOpen.getAbsolutePath());
ExistTextCustomers.setText("File exists and can be read.");
}
catch (IOException e3){
ExistTextCustomers.setText("The file could not be read." + e3.getMessage());
}
}
}
);
return Customers;
}
class Customer extends JFrame
{
private String[] states = {"AL", "AK", "AZ", "AR", "CA", "CO", "CT", "DE",
"FL", "GA", "HI", "ID", "IL", "IN", "IA", "KS", "KY", "LA", "ME",
"MD", "MA", "MI", "MN", "MS", "MO", "MT", "NE", "NV", "NH", "NJ",
"NM", "NY", "NC", "ND", "OH", "OK", "OR", "PA", "RI", "SC", "SD",
"TN", "TX", "UT", "VT", "VA", "WA", "WV", "WI", "WY"};
private JComboBox StateList = new JComboBox(states);
private JTextField NameText = new JTextField(25);
private JTextField AddressText = new JTextField(25);
private JTextField CityText = new JTextField(25);
private JTextField ZipText = new JTextField(9);
private JTextField PhoneText = new JTextField(10);
private JTextField ExistTextCustomers = new JTextField(30);
private static final long serialVersionUID = 1L;
private AddCustButtonHandler addCusHandler = new AddCustButtonHandler();
public Customer(String who)
{
popUpWindow (who);
}
public void popUpWindow(final String who) {
final JFrame popWindow;
popWindow = new JFrame(who);
popWindow.setSize(425, 350);
popWindow.setLocation(100, 100);
popWindow.setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
Container c = new Container();
popWindow.add(c);
c.setLayout(new FlowLayout());
JPanel one = new JPanel();
JPanel two = new JPanel();
JPanel three = new JPanel();
JPanel four = new JPanel();
JPanel five = new JPanel();
JPanel six = new JPanel();
one.add(new JLabel(who + " Name "));
one.add(NameText);
two.add(new JLabel("Address "));
two.add(AddressText);
three.add(new JLabel("City "));
three.add(CityText);
four.add(new JLabel("State "));
StateList.setSelectedIndex(0);
four.add(StateList);
four.add(new JLabel("ZIP"));
four.add(ZipText);
four.add(new JLabel("Phone"));
four.add(PhoneText);
JButton addwho = new JButton("Add " + who);
addwho.setMnemonic('A');
JButton close = new JButton("Exit");
close.setMnemonic('C');
JButton deleteFile = new JButton("Delete File");
deleteFile.setMnemonic('D');
five.add(addwho);
five.add(close);
five.add(deleteFile);
ExistTextCustomers.setEditable(false);
ExistTextCustomers.setHorizontalAlignment(JTextField.CENTER);
six.add(ExistTextCustomers);
c.add(one);
c.add(two);
c.add(three);
c.add(four);
c.add(five);
c.add(six);
deleteFile.setToolTipText("Delete File");
addwho.setToolTipText("Add "+ who);
close.setToolTipText("Exit");
if (who == "Customer")
addwho.addActionListener(addCusHandler);
close.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
NameText.setText("");
AddressText.setText("");
CityText.setText("");
ZipText.setText("");
PhoneText.setText("");
ExistTextCustomers.setText("");
popWindow.dispose();
}
}
);
deleteFile.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
ExistTextCustomers.setText("");
if (who.equals("Customer")) {
File file = new File("Customer.txt");
boolean cusFileDeleted = file.delete();
if (cusFileDeleted) {
ExistTextCustomers
.setText("Customer file has been deleted");
} else {
ExistTextCustomers
.setText("There was an error in deleting file");
}
}
}
}
);
}
class AddCustButtonHandler implements ActionListener {
public void actionPerformed(ActionEvent addCusHandler) {
int StateIndex;
try {
File file = new File("Customer.txt");
boolean success = file.createNewFile();
if (success) {
ExistTextCustomers
.setText("Customer.txt file created file added");
} else if (file.canWrite()) {
ExistTextCustomers
.setText("Writing data to Customer.txt, file added");
} else {
ExistTextCustomers.setText("Cannot create file: Customer.txt");
}
try {
FileWriter fileW = new FileWriter("Customer.txt", true);
fileW.write(NameText.getText());
fileW.write(",");
fileW.write(AddressText.getText());
fileW.write(",");
fileW.write(CityText.getText());
fileW.write(",");
StateIndex = StateList.getSelectedIndex();
fileW.write(states[StateIndex]);
fileW.write(",");
fileW.write(ZipText.getText());
fileW.write(",");
fileW.write(PhoneText.getText());
fileW.write("\r\n");
fileW.close();
ExistTextCustomers.setText("A new Customer has been added!");
FileReader fileR = new FileReader("Customer.txt");
BufferedReader buffIn = new BufferedReader(fileR);
String textData = buffIn.readLine();
buffIn.close();
}
catch (IOException e1) {
JOptionPane.showMessageDialog(null, e1.getMessage(), "ERROR", 2);
}
NameText.setText("");
AddressText.setText("");
CityText.setText("");
ZipText.setText("");
PhoneText.setText("");
}
catch (IOException e1) {
}
}
}
public void actionPerformed(ActionEvent event){
}
private void Exit_pressed(){
System.exit(0);
}
}
public static void main(String[] args){
JFrame frame = new FVolume();
frame.setSize(420, 350);
frame.setVisible(true);
}
public void actionPerformed(ActionEvent e) {
}
}
import java.awt.*;
导入javax.swing.*;
导入java.awt.event.*;
导入java.util.*;
导入java.io.*;
导入java.util.List;
公共类FVolume扩展JFrame实现ActionListener{
私人JTabbedPane JTabbedPane;
私人JPanel客户;
private List customers=new ArrayList();
JTextArea NameTextCustomers、ExistTextCustomers、NameTextContractors、ExistTextContractors;
JTextField lengthTextPool、widthTextPool、depthTextPool、volumeTextPool;
公共体积(){
setTitle(“体积计算器”);
设置大小(300200);
JPanel-topPanel=新的JPanel();
setLayout(新的BorderLayout());
getContentPane().add(topPanel);
createCustomers();
jtabbedPane=新的jtabbedPane();
jtabbedPane.addTab(“客户”,客户);
添加(jtabbedPane,BorderLayout.CENTER);
}
/*创造客户*/
公共JPanel createCustomers(){
客户=新JPanel();
Customers.setLayout(空);
NameTextCustomers=new JTextArea(“选择添加客户以添加客户。选择刷新以刷新此窗格”);
NameTextCustomers.setLineWrap(true);
NameTextCustomers.setBounds(10,10390150);
Customers.add(NameTextCustomers);
JButton Exit=新JButton(“Exit”);
出口.立根(30170,80,20);
Exit.addActionListener(this);
出口。后退地面(颜色。白色);
客户。添加(退出);
JButton AddCustomers=新JButton(“添加客户”);
AddCustomers.setBounds(130170120,20);
AddCustomers.setBackground(颜色:白色);
Customers.add(AddCustomers);
JButton刷新=新JButton(“刷新”);
刷新.挫折(260170,80,20);
刷新.背景(颜色.白色);
添加(刷新);
ExistTextCustomers=new JTextArea();
ExistTextCustomers.setBounds(1020039060);
ExistTextCustomers.setLineWrap(true);
Customers.add(ExistTextCustomers);
最终JTextArea custArea=新JTextArea(6,30);
最终JTextArea ExistTextCustomers;
ExistTextCustomers=新的JTextArea(2,30);
ExistTextCustomers.setLineWrap(true);
ExistTextCustomers.setWrapStyleWord(true);
AddCustomers.addActionListener(新的ActionListener()
{
已执行的公共无效操作(操作事件e)
{
客户。添加(新客户(“客户”));
}
});
添加(客户区);
Customers.add(AddCustomers);
添加(刷新);
Refresh.set助记符('R');
Refresh.addActionListener(新建ActionListener())
{
已执行的公共无效操作(操作事件e)
{
NameTextCustomers.setText(“此处的文件信息”);
尝试
{
文件custOpen=新文件(“customer.txt”);
FileReader custAreaIn=新的FileReader(custOpen);
读取(custAreaIn,custOpen.getAbsolutePath());
ExistTextCustomers.setText(“文件存在并且可以读取”);
}
捕获(IOE3异常){
ExistTextCustomers.setText(“无法读取文件。”+e3.getMessage());
}
}
}
);
返回客户;
}
类客户扩展JFrame
{
私有字符串[]状态={“AL”、“AK”、“AZ”、“AR”、“CA”、“CO”、“CT”、“DE”,
“FL”、“GA”、“HI”、“ID”、“IL”、“IN”、“IA”、“KS”、“KY”、“LA”、“ME”,
“MD”、“MA”、“MI”、“MN”、“MS”、“MO”、“MT”、“NE”、“NV”、“NH”、“NJ”,
“NM”、“NY”、“NC”、“ND”、“OH”、“OK”、“OR”、“PA”、“RI”、“SC”、“SD”,
“TN”、“TX”、“UT”、“VT”、“VA”、“WA”、“WV”、“WI”、“WY”};
私有JComboBox状态列表=新的JComboBox(状态);
私有JTextField NameText=新JTextField(25);
私有JTextField AddressText=新JTextField(25);
私有JTextField CityText=新JTextField(25);
私有JTextField ZipText=新JTextField(9);
私有JTextField PhoneText=新JTextField(10);
私有JTextField existtextcustors=新JTextField(30);
私有静态最终长serialVersionUID=1L;
私有AddCustButtonHandler addCusHandler=新的AddCustButtonHandler();
公共客户(字符串谁)
{
波普芬多(世卫组织);
}
public void popUpWindow(最后一个字符串who){
最终JFrame窗口;
popWindow=新JFrame(who);
popWindow.setSize(425350);
popWindow.setLocation(100100);
popWindow.setVisible(true);
setDefaultCloseOperation(关闭时退出);
容器c=新容器();
添加(c);
c、 setLayout(新的FlowLayout());
JPanel one=新的JPanel();
JPanel two=新的JPanel();
JPanel三=新的JPanel();
JPanel four=新的JPanel();
JPanel五=新的JPanel();
JPanel六=新的JPanel();
在…上
public Customer(String who, FVolume _parent)
{
popUpWindow (who);
parent = _parent;
}
public void setField(String str)
{
NameTextCustomers.setText(str);
NameTextCustomers.validate();
}
public void actionPerformed(ActionEvent addCusHandler) {
int StateIndex;
try {
File file = new File("Customer.txt");
StringBuilder sb = new StringBuilder();
boolean success = file.createNewFile();
if (success) {
ExistTextCustomers
.setText("Customer.txt file created file added");
} else if (file.canWrite()) {
ExistTextCustomers
.setText("Writing data to Customer.txt, file added");
} else {
ExistTextCustomers.setText("Cannot create file: Customer.txt");
}
try {
FileWriter fileW = new FileWriter("Customer.txt", true);
sb.append(NameText.getText());
sb.append(",");
sb.append(AddressText.getText());
sb.append(",");
sb.append(CityText.getText());
sb.append(",");
StateIndex = StateList.getSelectedIndex();
sb.append(states[StateIndex]);
sb.append(",");
sb.append(ZipText.getText());
sb.append(",");
sb.append(PhoneText.getText());
sb.append("\r\n");
fileW.write(sb.toString());
parent.setField(sb.toString());
fileW.close();
ExistTextCustomers.setText("A new Customer has been added!");
FileReader fileR = new FileReader("Customer.txt");
BufferedReader buffIn = new BufferedReader(fileR);
String textData = buffIn.readLine();
buffIn.close();
AddCustomers.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
new Customer("Customer", FVolume.this);
}
});