URL u = new URL(url); URLConnection conn = u.openConnection(); BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));需要传入token信息
时间: 2024-02-20 18:58:05 浏览: 116
好的,可以使用URLConnection的setRequestProperty方法来传入token信息,示例代码如下:
```
URL u = new URL(url);
URLConnection conn = u.openConnection();
conn.setRequestProperty("Authorization", "Bearer " + token);
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
```
其中,token为你的授权码,需要替换为你自己的值。这样就可以在请求中传入token信息了。
相关问题
java urlconnection
Java URLConnection 是 Java 中用来处理网络连接的一个类,它可以用于向指定 URL 发送请求并获取响应数据。URLConnection 提供了一些方法来设置请求头、请求方法、读取响应数据等。
使用 URLConnection 进行网络连接的基本步骤如下:
1. 创建一个 URL 对象,指定要访问的 URL。
2. 通过 URL 对象的 openConnection() 方法创建一个连接对象。
3. 对连接对象进行一些设置,例如设置请求头、请求方法等。
4. 获取连接对象的输入流,读取响应数据。
下面是一个使用 URLConnection 发送 GET 请求并读取响应数据的例子:
```
import java.net.*;
import java.io.*;
public class URLConnectionExample {
public static void main(String[] args) throws Exception {
URL url = new URL("http://www.example.com");
URLConnection conn = url.openConnection();
BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
while ((line = reader.readLine()) != null) {
System.out.println(line);
}
reader.close();
}
}
```
这个例子中,我们先创建了一个 URL 对象,然后通过它的 openConnection() 方法创建了一个 URLConnection 对象。我们使用 BufferedReader 来读取连接对象的输入流,并逐行输出响应数据。最后我们关闭了输入流。
通过在地址栏输入URL地址,可以访问相应的网页,包括:一个菜单栏(文件、编辑、视图)、两个工具栏、带有滚动条的JEditorPane。菜单栏中,文件的热键是F,包括另存为(热键A,快捷键CTRL+S)和退出(热键1,快捷键CTRL+E)两个菜单项:编辑的热键是E,包括后退 (快捷键CTRL+Z)和前进(快捷键CTRL+D)两个菜单项,视图的热键是V,包括全屏(快捷键CTRL+U)、查看源代码(热键C,快捷键CTRL+C)、刷新 (快捷键CTRL+R)。一个工具栏包括三个按钮:另存为、后退、前进、查看源代码、退出,另外一个工具栏包括一个label(地址),一个文本框JTextField和一个按钮 (转向)另存为(将正在访问的页面进行保存)、前进(访问现有页面的上一个页面)、后退 (访问现有页面的下一个页面)、查看源文件 (查看访问页面的HTML源文件、并提供保存、退出功能) 在地址栏输入URL地址后,可以利用javax.swing.JEditorPane来展示网页内容(可调用setPage(String url)方法),另存为网页可以利用输入/输出流实现 (可将字符串形式的URL地址可以打包成java.net.URL实例,调用其中的openStream())可将网页转换为流,然后通过输入流读取获得源代码,输出流进行保存网页。根据以上内容给我对应的代码,功能尽量完善
好的,以下是一份简单的 Java 代码示例,实现了您提到的功能:
```java
import java.awt.BorderLayout;
import java.awt.Desktop;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.Stack;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JToolBar;
import javax.swing.KeyStroke;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
public class WebBrowser extends JFrame {
private static final long serialVersionUID = 1L;
private JEditorPane editorPane;
private JLabel urlLabel;
private JButton goButton, backButton, forwardButton, refreshButton, sourceButton;
private JMenuItem saveMenuItem, exitMenuItem, backMenuItem, forwardMenuItem, viewSourceMenuItem, fullScreenMenuItem, refreshMenuItem;
private Stack<String> backStack = new Stack<>();
private Stack<String> forwardStack = new Stack<>();
public WebBrowser() {
super("Web Browser");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(800, 600);
setLayout(new BorderLayout());
// 创建菜单栏
JMenuBar menuBar = new JMenuBar();
JMenu fileMenu = new JMenu("File");
fileMenu.setMnemonic(KeyEvent.VK_F);
saveMenuItem = new JMenuItem(new SaveAction());
saveMenuItem.setMnemonic(KeyEvent.VK_A);
saveMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, ActionEvent.CTRL_MASK));
exitMenuItem = new JMenuItem("Exit", KeyEvent.VK_X);
exitMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_E, ActionEvent.CTRL_MASK));
exitMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
fileMenu.add(saveMenuItem);
fileMenu.addSeparator();
fileMenu.add(exitMenuItem);
JMenu editMenu = new JMenu("Edit");
editMenu.setMnemonic(KeyEvent.VK_E);
backMenuItem = new JMenuItem("Back", KeyEvent.VK_B);
backMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z, ActionEvent.CTRL_MASK));
backMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
goBack();
}
});
forwardMenuItem = new JMenuItem("Forward", KeyEvent.VK_F);
forwardMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_D, ActionEvent.CTRL_MASK));
forwardMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
goForward();
}
});
editMenu.add(backMenuItem);
editMenu.add(forwardMenuItem);
JMenu viewMenu = new JMenu("View");
viewMenu.setMnemonic(KeyEvent.VK_V);
fullScreenMenuItem = new JMenuItem("Full Screen", KeyEvent.VK_U);
fullScreenMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_U, ActionEvent.CTRL_MASK));
fullScreenMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
setExtendedState(JFrame.MAXIMIZED_BOTH);
}
});
viewSourceMenuItem = new JMenuItem("View Source", KeyEvent.VK_C);
viewSourceMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, ActionEvent.CTRL_MASK));
viewSourceMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
viewSource();
}
});
refreshMenuItem = new JMenuItem("Refresh", KeyEvent.VK_R);
refreshMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_R, ActionEvent.CTRL_MASK));
refreshMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
refresh();
}
});
viewMenu.add(fullScreenMenuItem);
viewMenu.add(viewSourceMenuItem);
viewMenu.add(refreshMenuItem);
menuBar.add(fileMenu);
menuBar.add(editMenu);
menuBar.add(viewMenu);
setJMenuBar(menuBar);
// 创建工具栏
JToolBar toolBar1 = new JToolBar(SwingConstants.HORIZONTAL);
toolBar1.setFloatable(false);
backButton = new JButton(new ImageIcon("back.png"));
backButton.setToolTipText("Back");
backButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
goBack();
}
});
forwardButton = new JButton(new ImageIcon("forward.png"));
forwardButton.setToolTipText("Forward");
forwardButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
goForward();
}
});
refreshButton = new JButton(new ImageIcon("refresh.png"));
refreshButton.setToolTipText("Refresh");
refreshButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
refresh();
}
});
sourceButton = new JButton(new ImageIcon("source.png"));
sourceButton.setToolTipText("View Source");
sourceButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
viewSource();
}
});
toolBar1.add(backButton);
toolBar1.add(forwardButton);
toolBar1.add(refreshButton);
toolBar1.add(sourceButton);
JToolBar toolBar2 = new JToolBar(SwingConstants.HORIZONTAL);
toolBar2.setFloatable(false);
urlLabel = new JLabel("URL: ");
JTextField urlField = new JTextField();
urlField.setPreferredSize(new Dimension(400, 30));
urlField.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String url = urlField.getText();
if (!url.startsWith("http")) {
url = "http://" + url;
}
loadPage(url);
}
});
goButton = new JButton("Go");
goButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String url = urlField.getText();
if (!url.startsWith("http")) {
url = "http://" + url;
}
loadPage(url);
}
});
toolBar2.add(urlLabel);
toolBar2.add(urlField);
toolBar2.add(goButton);
// 创建 JEditorPane
editorPane = new JEditorPane();
editorPane.setEditable(false);
editorPane.setContentType("text/html");
editorPane.setPreferredSize(new Dimension(800, 600));
editorPane.addHyperlinkListener(new HyperlinkListener() {
public void hyperlinkUpdate(HyperlinkEvent e) {
if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
String url = e.getURL().toString();
loadPage(url);
}
}
});
// 添加组件到窗口
JPanel toolBarPanel = new JPanel(new BorderLayout());
toolBarPanel.add(toolBar1, BorderLayout.NORTH);
toolBarPanel.add(toolBar2, BorderLayout.SOUTH);
add(toolBarPanel, BorderLayout.NORTH);
add(editorPane, BorderLayout.CENTER);
setVisible(true);
}
private void loadPage(String url) {
try {
URL u = new URL(url);
URLConnection conn = u.openConnection();
InputStream in = conn.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder sb = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
reader.close();
editorPane.setText(sb.toString());
urlLabel.setText("URL: " + url);
backStack.push(url);
forwardStack.clear();
} catch (IOException e) {
JOptionPane.showMessageDialog(this, "Failed to load page: " + e.getMessage());
}
}
private void goBack() {
if (!backStack.isEmpty()) {
String url = backStack.pop();
forwardStack.push(url);
if (!backStack.isEmpty()) {
url = backStack.peek();
loadPage(url);
}
}
}
private void goForward() {
if (!forwardStack.isEmpty()) {
String url = forwardStack.pop();
backStack.push(url);
loadPage(url);
}
}
private void refresh() {
if (!backStack.isEmpty()) {
String url = backStack.peek();
loadPage(url);
}
}
private void viewSource() {
if (!backStack.isEmpty()) {
String url = backStack.peek();
try {
URL u = new URL(url);
InputStream in = u.openStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder sb = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
reader.close();
String content = sb.toString();
String fileName = u.getHost() + u.getPath() + ".html";
FileOutputStream out = new FileOutputStream(fileName);
out.write(content.getBytes());
out.close();
Desktop.getDesktop().open(new File(fileName));
} catch (IOException e) {
JOptionPane.showMessageDialog(this, "Failed to view source: " + e.getMessage());
}
}
}
private class SaveAction extends AbstractAction {
private static final long serialVersionUID = 1L;
public SaveAction() {
super("Save As");
putValue(Action.MNEMONIC_KEY, KeyEvent.VK_A);
putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_S, ActionEvent.CTRL_MASK));
}
public void actionPerformed(ActionEvent e) {
if (!backStack.isEmpty()) {
String url = backStack.peek();
try {
URL u = new URL(url);
InputStream in = u.openStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder sb = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
reader.close();
String content = sb.toString();
String fileName = u.getHost() + u.getPath() + ".html";
FileOutputStream out = new FileOutputStream(fileName);
out.write(content.getBytes());
out.close();
} catch (IOException ex) {
JOptionPane.showMessageDialog(WebBrowser.this, "Failed to save page: " + ex.getMessage());
}
}
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new WebBrowser();
}
});
}
}
```
需要注意的是,上述代码中的菜单栏、工具栏和 JEditorPane 的图标可能需要替换为您自己的图片文件,以便正确显示。此外,代码中的网页保存功能实现比较简单,只是将网页内容保存到了同名的 .html 文件中,可能需要根据实际需求进行修改。
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