请问各位高手，有关在WEB下做报表的问题？（现在给不了分，以后一定给）__new_xdomainPanel_add_panel2_fnChoice_

当前位置: 技术问答>java相关

请问各位高手，有关在WEB下做报表的问题？（现在给不了分，以后一定给）

来源: 互联网发布时间：2015-01-18

本文导语: 请问各位高手，有关在WEB下做报表的问题？说实话我一直以来很被WEB下面开发报表很困惑，不知道怎样才好，以前都是利用表单显示，然后用浏览器的打印按钮，或者用JAVASCRIPT里的PRINT？来实现？各位有什么好的办法...

请问各位高手，有关在WEB下做报表的问题？说实话我一直以来很被WEB下面开发报表很困惑，不知道怎样才好，以前都是利用表单显示，然后用浏览器的打印按钮，或者用JAVASCRIPT里的PRINT？来实现？各位有什么好的办法，我以前看过别人做的报表他的风格就像VB做的报表，可能是利用了一个组件，但是我不知道怎样实现他，那为高人知道麻烦告之，（在PHP或者JSP里实现）。
谢谢

/* My first graphing applet. */
/* Need to:  put in a status line.
             see why it doesn't use the full range of ymin to ymax
       when I change functions.
     put tick marks into a function.
*/

import java.awt.*;
import java.util.*;
import java.applet.Applet;

public class SimplePlot extends Applet {
  TextField fromFld, toFld;
  String MyText;
  Label label, toLabel, fromLabel, statusLabel;
  PlotCanvas canvas;
  public int i;
  Button redb, blueb, domainChangeb;
  Color color;
  Panel panel1, panel2, bottomPanel, statusPanel, xdomainPanel;
  Choice fnChoice;
  float beginXmin = -100, beginXmax = 100;

   public void init() {

     setLayout(new BorderLayout(5,5));

     panel1 = new Panel();
     label = new Label("Plotting a Function");
     panel1.add(label);
     add("North", panel1);

     panel2 = new Panel();
     panel2.setLayout(new GridLayout(0,1,5,5));
     panel2.add(new Label("Choose a Color"));
     redb = new Button("RED");
     redb.setBackground(Color.red);
     panel2.add(redb);
     blueb = new Button("BLUE");
     blueb.setBackground(Color.blue);
     panel2.add(blueb);
     panel2.add(new Label("Choose a Function"));
     fnChoice = new Choice();
     fnChoice.addItem("x^2");
     fnChoice.addItem("x + 30");
     fnChoice.addItem("x^3");
     fnChoice.addItem("x^2 + x - 52");
     panel2.add(fnChoice);
     add("East", panel2);

     canvas = new PlotCanvas(this);
     add("Center", canvas);
     fromLabel = new Label("-100");



     /* Bottom Panel, with from and to and status line. */

     bottomPanel = new Panel();
     bottomPanel.setLayout(new GridLayout(0,1,5,5));

     /* Domain panel */
     xdomainPanel = new Panel();

     xdomainPanel.add(new Label("Plot x from : "));
     fromFld = new TextField("-100", 7);
     canvas.setXmin(-100);
     xdomainPanel.add(fromFld);

     xdomainPanel.add(new Label("to : "));
     toFld = new TextField("100", 10);
     canvas.setXmax(100);
     xdomainPanel.add(toFld);

     domainChangeb = new Button ("Change Domain");
     xdomainPanel.add(domainChangeb);

     bottomPanel.add(xdomainPanel);

     /* Status Line */
     statusPanel = new Panel();
     statusLabel = new Label("                                           ");
     statusLabel.setForeground(Color.magenta);
     statusPanel.add(statusLabel);

     bottomPanel.add(statusPanel);

     add("South", bottomPanel);
   }

  /** Draws a box around this panel. */
  public void paint(Graphics g) {
    Dimension d = size();
    g.drawRect(0,0, d.width - 1, d.height - 1);
  }

  public Insets insets() {
    return new Insets(5,5,5,8);
  }

  public boolean handleEvent(Event e) {
    int newFn;

    try {
      if ((e.target instanceof Button)
&& (e.id == Event.ACTION_EVENT)) {
if (e.target == redb) {
     canvas.changeColor(Color.red);
}
else if (e.target == blueb) {
  canvas.changeColor(Color.blue);
}
else if (e.target == domainChangeb) {
  float newXmin = 0, newXmax = 0;
  /* Do this to get rid of a possible
     "Domain must be a number" message */
  statusLabel.setText("                           ");
  newXmin = Float.valueOf(fromFld.getText()).floatValue();
  newXmax = Float.valueOf(toFld.getText()).floatValue();
  if (newXmax