Ajax 提交后 返还列表
2013-12-07 21:03
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package com.zxl.ajax;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class AjaxServlet02 extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html");
if(request.getParameter("name").equals("java")){
response.getWriter().println(
"<topic>"+
"<name>java language</name>"+
"<tutorial>intrroduction to java sockets</tutorial>"+
"<tutorial>intrroduction to rmi</tutorial>"+
"<tutorial>equals method</tutorial>"+
"</topic>"
);
}else if (request.getParameter("name").equals("oodp")) {
response.getWriter().println(
"<topic>"+
"<name>object oriented design patterns</name>"+
"<tutorial>factory method</tutorial>"+
"<tutorial>abstract factory</tutorial>"+
"<tutorial>singleton</tutorial>"+
"</topic>"
);
}else {
response.getWriter().println(
"<topic>"+
"<name>topic:" +request.getParameter("name")+"</name>"+
"<tutorial>no tutorials found</tutorial>"+
"</topic>"
);
}
}
}
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class AjaxServlet02 extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html");
if(request.getParameter("name").equals("java")){
response.getWriter().println(
"<topic>"+
"<name>java language</name>"+
"<tutorial>intrroduction to java sockets</tutorial>"+
"<tutorial>intrroduction to rmi</tutorial>"+
"<tutorial>equals method</tutorial>"+
"</topic>"
);
}else if (request.getParameter("name").equals("oodp")) {
response.getWriter().println(
"<topic>"+
"<name>object oriented design patterns</name>"+
"<tutorial>factory method</tutorial>"+
"<tutorial>abstract factory</tutorial>"+
"<tutorial>singleton</tutorial>"+
"</topic>"
);
}else {
response.getWriter().println(
"<topic>"+
"<name>topic:" +request.getParameter("name")+"</name>"+
"<tutorial>no tutorials found</tutorial>"+
"</topic>"
);
}
}
}
var xmlHttpRequest=new XMLHttpRequest(); function findTurorals(){ xmlHttpRequest.open("POST","AjaxServlet02?name="+document.getElementById('topicTextInput').value,true); xmlHttpRequest.onreadystatechange=processTutorials; xmlHttpRequest.send(); documnet.getElementById('topicTextInput').value=""; } function processTutorials(){ if(xmlHttpRequest.readyState==4 && xmlHttpRequest.status==200){ var table=document.getElementById("tutorialsTable"); table.innerHTML=""; var dom=(new DOMParser()).parseFromString(xmlHttpRequest.responseText,"text/xml"); var tutorials=dom.getElementsByTagName("tutorial"); var headrow=table.insertRow(0); var headcell=headrow.insertCell(0); headcell.style.backgroundColor="LightGray"; headcell.innerHTML=(dom.getElementsByTagName("name"))[0].childNodes[0].nodeValue; var i=0; while(i<tutorials.length){ row=table.insertRow(i+1); cell=row.insertCell(0); cell.innerHTML=tutorials[i++].childNodes[0].nodeValue; }; } }
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> <script type="text/javascript" src="ajaxprj02.js"></script> </head> <body> <input type="text" id="topicTextInput" size=12/> <button type="button" onclick="findTurorals()">find</button> <table id="tutorialsTable" style="border:1px solid black"></table> </body> </html>
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