inputpage.java

这是一个java编写的程序

/**
 * Example Mapper Application
 * by: Marty Phelan
 *
 * This example is free software; you can redistribute it and/or
 * modify it as you wish.  It is released to the public domain.
 *
 * This example is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 */
package com.taursys.examples.simpleweb;

import com.taursys.examples.simpleweb.delegate.Person;
import com.taursys.html.HTMLInputText;
import com.taursys.model.VOValueHolder;
import com.taursys.servlet.ServletForm;

/**
 * InputPage Servlet Form demonstrates input/output features using TextFields and VOValueHolder.
 */
public class InputPage extends ServletForm {
  HTMLInputText firstName = new HTMLInputText();
  HTMLInputText lastName = new HTMLInputText();
  VOValueHolder person = new VOValueHolder();

  /**
   * Constructs a new SecondPage and initializes component properties.
   */
  public InputPage() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }

  /**
   * Set component properties here.  It is not recommended to put anything
   * other than property settings in here.  Any Exception will cause the
   * constructor to fail.
   */
  private void jbInit() throws Exception {
    this.setDocumentURI("resource:///forms/InputPage.html");
    firstName.setParameter("firstName");
    firstName.setPropertyName("firstName");
    firstName.setValueHolder(person);
    firstName.setId("firstName");
    lastName.setParameter("lastName");
    lastName.setPropertyName("lastName");
    lastName.setValueHolder(person);
    lastName.setId("lastName");
    this.add(firstName);
    this.add(lastName);
  }

  /**
   * One time initialization of the ServletForm.  This method is invoked ONCE.
   * It is the first method invoked by the doGet method.  If the form is
   * recycled, it will NOT be invoked again by doGet.
   */
  protected void initForm() throws java.lang.Exception {
    super.initForm();
  }

  /**
   * This method is invoked by doGet to open the form.
   * It is invoked after any parameters have been read, but before input
   * values have been read.  Override this method to provide custom
   * behavior such as opening data sources.  There is no need to invoke
   * super.openForm().
   */
  protected void openForm() throws java.lang.Exception {
    // Try to retrieve from session else create
    Person personVO = (Person)getRequest().getSession().getAttribute("ThePerson");
    if (personVO == null) {
      // Create the value object and store
      personVO = new Person(1629, "Pulaski", "Katherine", null);
      getRequest().getSession().setAttribute("ThePerson", personVO);
    }
    // Bind value object to person ValueHolder
    person.setValueObject(personVO);
  }
}