如何把java代码嵌入到javascript中

JavaScript030

如何把java代码嵌入到javascript中,第1张

如果页面是JSP页面,则可以直接嵌套写,如:

<javascript>var jsstr = "abc"</javascript>

<% String str = new String(" %><javascript>jsstr</javascript><% "%>

如果是HTML页面,则只有用DWR调用JAVA方法进行值的传递。

import java.awt.BorderLayout

import java.awt.Toolkit

import java.awt.event.MouseEvent

import java.awt.event.MouseListener

import java.io.File

import java.io.IOException

import java.io.InputStream

import java.io.RandomAccessFile

import java.net.HttpURLConnection

import java.net.URL

import java.util.ArrayList

import java.util.Arrays

import java.util.Date

import java.util.List

import javax.swing.ImageIcon

import javax.swing.JFrame

import javax.swing.JLabel

import javax.swing.JPanel

import javax.swing.SwingUtilities

import chrriis.common.UIUtils

import chrriis.dj.nativeswing.swtimpl.NativeInterface

import chrriis.dj.nativeswing.swtimpl.components.JWebBrowser

import chrriis.dj.nativeswing.swtimpl.components.WebBrowserCommandEvent

import chrriis.dj.nativeswing.swtimpl.components.WebBrowserEvent

import chrriis.dj.nativeswing.swtimpl.components.WebBrowserListener

import chrriis.dj.nativeswing.swtimpl.components.WebBrowserNavigationEvent

import chrriis.dj.nativeswing.swtimpl.components.WebBrowserWindowOpeningEvent

import chrriis.dj.nativeswing.swtimpl.components.WebBrowserWindowWillOpenEvent

import com.jacob.activeX.ActiveXComponent

import com.jacob.com.ComThread

import com.jacob.com.Dispatch

import com.jacob.com.Variant

import com.mohe.utils.system.L

/**

* 主窗体

*

* @author dxm

*

*/

public class MainFrame extends JFrame {

private static final long serialVersionUID = -6348199501339114346L

// 最后操作时间

public long lastTime = new Date().getTime()

// 浏览器窗体

private JWebBrowser webBrowser = null

private JLabel lbl = null

private JPanel panel = null

public int pageFlag = 1

/**

* 构造器

*/

public MainFrame() {

initData()

initGUI()

addListance()

}

private void initData() {

Toolkit toolkit = Toolkit.getDefaultToolkit()

this.setUndecorated(true)

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)

this.setSize(600, 500)

this.setLocationRelativeTo(null)

this.setSize(toolkit.getScreenSize())

this.setLocation(0, 0)

webBrowser = new JWebBrowser()

webBrowser.navigate(Config.local + Config.index)

webBrowser.setBarsVisible(false)

webBrowser.setMenuBarVisible(false)

webBrowser.setLocationBarVisible(false)

webBrowser.setButtonBarVisible(false)

webBrowser.setStatusBarVisible(false)

ImageIcon icon = new ImageIcon(System.getProperty("user.dir") + "\\城市.gif")

File img = new File(System.getProperty("user.dir") + "\\" + Config.img)

if (img.exists()) {

icon = new ImageIcon(img.getAbsolutePath())

}

lbl = new JLabel(icon)

panel = new JPanel(new BorderLayout())

}

private void initGUI() {

panel.add(webBrowser, BorderLayout.CENTER)

this.setContentPane(panel)

}

private void addListance() {

webBrowser.addWebBrowserListener(new WebBrowserListener() {

@Override

public void windowWillOpen(WebBrowserWindowWillOpenEvent arg0) {

lastTime = new Date().getTime()

L.info("___________ windowWillOpen")

}

@Override

public void windowOpening(WebBrowserWindowOpeningEvent arg0) {

lastTime = new Date().getTime()

L.info("___________ windowOpening")

}

@Override

public void windowClosing(WebBrowserEvent arg0) {

lastTime = new Date().getTime()

L.info("___________ windowClosing")

}

@Override

public void titleChanged(WebBrowserEvent arg0) {

lastTime = new Date().getTime()

L.info("___________ titleChanged")

}

@Override

public void statusChanged(WebBrowserEvent arg0) {

lastTime = new Date().getTime()

L.info("___________ statusChanged")

}

@Override

public void locationChanging(WebBrowserNavigationEvent arg0) {

lastTime = new Date().getTime()

L.info("___________ locationChanging")

}

@Override

public void locationChanged(WebBrowserNavigationEvent arg0) {

lastTime = new Date().getTime()

L.info("___________ locationChanged")

// 判断当前页面等级

String locationURL = arg0.getNewResourceLocation()

int index = locationURL.indexOf("pageFlag=")

if (index != -1) {

pageFlag = Integer.parseInt(locationURL.substring(index + 9, index + 10))

} else {

pageFlag = 1

}

System.out.println("____________________ pageFlag:" + pageFlag)

// 判断下载文件进行打印

index = locationURL.indexOf("fileName=")

System.out.println("____________________ file Index:" + index)

if (index != -1) {

String fs = locationURL.substring(index + 9)

L.info("______________________ fileName = " + fs)

String[] fns = fs.split(",")

try {

List<File>flist = downNetFile(Arrays.asList(fns))

doPrintDoc(flist)

} catch (IOException e) {

e.printStackTrace()

}

}

SwingUtilities.invokeLater(new Runnable() {

public void run() {

webBrowser.setVisible(false)

webBrowser.setVisible(true)

webBrowser.updateUI()

webBrowser.repaint()

panel.updateUI()

panel.repaint()

panel.validate()

}

})

}

@Override

public void locationChangeCanceled(WebBrowserNavigationEvent arg0) {

lastTime = new Date().getTime()

L.info("___________ locationChangeCanceled")

}

@Override

public void loadingProgressChanged(WebBrowserEvent arg0) {

lastTime = new Date().getTime()

L.info("___________ loadingProgressChanged")

}

@Override

public void commandReceived(WebBrowserCommandEvent arg0) {

lastTime = new Date().getTime()

L.info("___________ commandReceived")

}

})

lbl.addMouseListener(new MouseListener() {

@Override

public void mouseReleased(MouseEvent arg0) {

}

@Override

public void mousePressed(MouseEvent arg0) {

}

@Override

public void mouseExited(MouseEvent arg0) {

}

@Override

public void mouseEntered(MouseEvent arg0) {

}

@Override

public void mouseClicked(MouseEvent arg0) {

change(2)

}

})

}