Jsp/servlet automatically populates Java objects with request parameters: Form Bean

(1) The problem arises:

For the sake of simplicity we need a technique that can submit the form data all at once, that is to say: the Bean form

(2) The Beanutilities code is as follows:

Package Com.lc.ch04biaodanshuju;import Java.util.*;import Javax.servlet.http.*;import Org.apache.commons.beanutils.beanutils;public class Beanutilities {public    static void Populatebean (Object Formbean,                                  httpservletrequest request) {    Populatebean (Formbean, Request.getparametermap ());  }    public static void Populatebean (Object bean,                                  Map propertymap) {    try {      beanutils.populate (bean, PropertyMap );    } catch (Exception e) {      //Empty catch. The possible exceptions is      //java.lang.IllegalAccessException and/      / Java.lang.reflect.InvocationTargetException.      In both cases, just skip the bean operation.}}}  

(3) A servlet that collects insurance employee insurance information is used to determine a workable insurance plan and related costs.

Package Com.lc.ch04biaodanshuju;import Java.io.ioexception;import Java.io.printwriter;import Javax.servlet.servletexception;import Javax.servlet.http.httpservlet;import Javax.servlet.http.httpservletrequest;import Javax.servlet.http.httpservletresponse;public Class Submitinsuranceinfo extends HttpServlet {public void doget (HttpServletRequest request, Httpservletres    Ponse response) throws Servletexception, IOException {insuranceinfo info = new Insuranceinfo ();    Beanutilities.populatebean (info, request);    Response.setcontenttype ("text/html");    PrintWriter out = Response.getwriter (); String DocType = "<!    DOCTYPE HTML public \ "-//W3C//DTD HTML 4.0" + "transitional//en\" >\n ";    String title = "Insurance Info for" + info.getname (); Out.println (DocType + "
(4) JavaBean of connected database

Package Com.lc.ch04biaodanshuju;public class Insuranceinfo {  private String name = "No name specified";  Private String EmployeeID = "No ID specified";  private int numchildren = 0;  Private Boolean ismarried = false;  Public String GetName () {    return (name);  }   public void SetName (String name) {    this.name = servletutilities.filter (name);  }  Public String Getemployeeid () {    return (EmployeeID);  }    public void Setemployeeid (String employeeID) {    This.employeeid = Servletutilities.filter (EmployeeID);  }  public int Getnumchildren () {    return (Numchildren);  }  public void Setnumchildren (int numchildren) {    this.numchildren = Numchildren;  }    public Boolean ismarried () {    return (ismarried);  }  public void Setmarried (Boolean ismarried) {    this.ismarried = ismarried;  }}


(5)
<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 transitional//en" >

(6) Jar package acquisition and use: we want to use the tool class must learn the jar package,: http://download.csdn.net/detail/u010870518/7867181 don't forget to add the configuration!






Jsp/servlet automatically populates Java objects with request parameters: Form Bean