Dojo 的 Ajax 简单应用

Posted on 2006-10-24 18:56 zolly 阅读(1839) 评论(0) 编辑收藏

在同一个页面插入数据到数据库，成功后返回成功插入的结果，相关文件PRPC.htm，SerDojo.java，DataDAO.java。
Dojo开发包：dojo-0.3.1-ajax.zip.

相关网站：http://www.blogjava.net/burnet/archive/2006/06/27/55339.html
http://manual.dojotoolkit.org/(官方)
http://manual.dojotoolkit.org/WikiHome/DojoDotBook (Dojo Book)
http://ajaxcn.org/forum/posts/list/127.page (Ajax 中文站，Dojo 文档列表)

代码如下：
PRPC.htm

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<head>

dojo.require("dojo.io.*");

function mySubmitProfile() {

dojo.byId('btnAddProfile').disabled = 'disabled';

dojo.io.bind ({

url: 'SerDojo?flag=profile',

handler: callBack,

formNode: dojo.byId('main')

});

}

function mySubmitCountry() {

dojo.byId('btnAddCountry').disabled = 'disabled';

dojo.io.bind ({

url: 'SerDojo?flag=country',

handler: callBack,

formNode: dojo.byId('main')

});

}

function callBack(type, data, evt) {

if (data == 'profileYES') {

insertStrProfile();

dojo.byId('stateFlag').innerHTML = data;

dojo.byId('btnAddProfile').disabled = '';

} else if (data == 'countryYES') {

insertStrCountry();

dojo.byId('stateFlag').innerHTML = data;

dojo.byId('btnAddCountry').disabled = '';

}

function insertStrProfile() {

var frm = dojo.byId('main');

var name = frm.name.value;

var sex;

var radio = document.getElementsByName('sex');

for (var i = 0; i < radio.length; i ++) {

if(frm.sex[i].checked) {

sex = radio[i].value;

}

var age = frm.age.value;

var address = frm.address.value;

var txtName = document.createTextNode(name);

var txtSex = document.createTextNode(sex);

var txtAge = document.createTextNode(age);

var txtAddress = document.createTextNode(address);

var tdName = document.createElement("td");

var tdSex = document.createElement("td");

var tdAge = document.createElement("td");

var tdAddress = document.createElement("td");

var tr = document.createElement("tr");

tdName.appendChild(txtName);

tdSex.appendChild(txtSex);

tdAge.appendChild(txtAge);

tdAddress.appendChild(txtAddress);

tr.appendChild(tdName);

tr.appendChild(tdSex);

tr.appendChild(tdAge);

tr.appendChild(tdAddress);

var parNode = document.getElementById("tbProfile");

parNode.appendChild(tr);

}

function insertStrCountry() {

var frm = dojo.byId('main');

var country = frm.country.value;

var company = frm.company.value;

var website = frm.website.value;

var txtCountry = document.createTextNode(country);

var txtCompany = document.createTextNode(company);

var txtWebsite = document.createTextNode(website);

var tdCountry = document.createElement("td");

var tdCompany = document.createElement("td");

var tdWebsite = document.createElement("td");

var tr = document.createElement("tr");

tdCompany.appendChild(txtCompany);

tdCountry.appendChild(txtCountry);

tdWebsite.appendChild(txtWebsite);

tr.appendChild(tdCompany);

tr.appendChild(tdCountry);

tr.appendChild(tdWebsite);

var parNode = document.getElementById("tbCountry");

parNode.appendChild(tr);

}

</script>

</head>

<body>

<tr>

<tr>

<tr>

<td>Address</td>

</tr>

</tbody>

</table></td>

</tr>

<tr>

<tr>

</tr>

<tr>

</tr>

<tr>

Male

Female</td>

</tr>

<tr>

<td bgcolor="#EBEBEB">Address:</td>

</tr>

<tr>

</div></td>

</tr>

</table></td>

</tr>

</table>

<tr>

<td height="20"><font color="#FF0000"><div id="stateFlag">State</div></font></td>

</tr>

</table>

</td>

</tr>

<tr>

<tr>

<tr>

<td>Company</td>

<td>Country</td>

<td>WebSite</td>

</tr>

</tbody>

</table></td>

</tr>

<tr>

<tr>

<td width="29%" bgcolor="#EBEBEB">Company:</td>

</tr>

<tr>

<td bgcolor="#EBEBEB">Country:</td>

</tr>

<tr>

<td bgcolor="#EBEBEB">WebSite:</td>

</tr>

<tr>

</div></td>

</tr>

</table></td>

<tr>

</td>

</tr>

</table>

</td>

</tr>

</table>

</form>

</body>

</html>

SerDojo.java

package servlet;

import DAO.DataDAO;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

/**

* Servlet implementation class for Servlet: SerDojo

public class SerDojo extends javax.servlet.http.HttpServlet

implements javax.servlet.Servlet {

/* (non-Java-doc)

* @see javax.servlet.http.HttpServlet#HttpServlet()

public SerDojo() {

super();

}

/* (non-Java-doc)

* @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)

protected void doGet(HttpServletRequest request,

HttpServletResponse response) throws ServletException, IOException {

// TODO Auto-generated method stub

PrintWriter out = response.getWriter();

String strFlag = request.getParameter("flag");

String strName = request.getParameter("name");

String strAge = request.getParameter("age");

String strSex = request.getParameter("sex");

String strAddress = request.getParameter("address");

String strCompany = request.getParameter("company");

String strCountry = request.getParameter("country");

String strWebSite = request.getParameter("website");

DataDAO dao = new DataDAO();

boolean isSuccess = false;

if (strFlag.equals("profile")) {

try {

isSuccess = dao.insertProfile(strName, strAge, strSex,

strAddress);

} catch (Exception e) {

e.printStackTrace();

}

if (isSuccess) {

out.print("profileYES");

} else {

out.print("profileNO");

}

} else if (strFlag.equals("country")) {

try {

isSuccess = dao.insertCompany(strCompany, strCountry, strWebSite);

} catch (Exception e) {

e.printStackTrace();

}

if (isSuccess) {

out.print("countryYES");

} else {

out.print("countryNO");

}

/* (non-Java-doc)

* @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)

protected void doPost(HttpServletRequest request,

HttpServletResponse response) throws ServletException, IOException {

// TODO Auto-generated method stub

doGet(request, response);

}

DataDAO.java

package DAO;

import java.sql.Connection;

import java.sql.Statement;

public class DataDAO {

public boolean insertCompany(String djCompany, String djCountry,

String djWebSite) throws Exception {

boolean success = false;

String sql = "insert into Dojo_Table_Company ";

sql += ("values('" + djCompany + "','" + djCountry + "','" + djWebSite +

"')");

//ResultSet rs=null;

Connection con = null;

Statement stat = null;

try {

con = Login.getConnection();

stat = con.createStatement();

stat.executeUpdate(sql);

success = true;

} catch (Exception e) {

//e.printStackTrace();

throw e;

}

finally {

}

return success;