前端jsp页面代码：
请选择版本:
<br/>
<div>
推送版本：<input type="button" id="post1" ?class = "ver" value="推送"/><br/>
响应版本：<input type="button" id="post2" class = "ver" value="响应"/><br/>
当前版本查看：<button id="post3" value="vercheck">查看</button>
</div>
<br/>
<br/>
<div ?id = "result"></div>
<script src="<%=path%>/js/jquery.min.js"></script>
<script src="<%=path%>/js/verselect.js"></script>
js控制代码：
$(function(){
$(‘#post1‘).click(function(){
//alert(1);
$(‘#result‘).innerHTML="";
var vers = "0";
$.ajax({
???????dataType: "html",
???????type: ‘POST‘,
???????url: g.basePath+‘/verSelect.do‘,
???????data: {
???????vers
},
???????success: function(data){
???????$(‘#result‘).html(data)
???????}
???});
})
$(‘#post2‘).click(function(){
//alert(2);
$(‘#result‘).innerHTML="";
var vers = "1";
$.ajax({
???????dataType: "html",
???????type: ‘POST‘,
???????url: g.basePath+‘/verSelect.do‘,
???????data: {
???????vers
},
???????success: function(data){
???????$(‘#result‘).html(data)
???????}
???});
})
$(‘#post3‘).click(function(){
//alert(3);
$(‘#result‘).innerHTML="";
var ver = $(‘#post3‘).val();
$.ajax({
???????dataType: "html",
???????type: ‘POST‘,
???????url: g.basePath+‘/verSelect.do‘,
???????data: {
???????ver
},
???????success: function(data){
???????$(‘#result‘).html(data)
???????}
???});
})
})
后台请求处理，此处使用post提交请求
import java.io.IOException;
import java.util.concurrent.atomic.AtomicBoolean;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class VerSelectServlet extends HttpServlet {
?public static version = false；
?@Override
?protected void doGet(HttpServletRequest request, HttpServletResponse response)
?????throws ServletException, IOException {
???doPost(request, response);
?}
?@Override
?protected void doPost(HttpServletRequest request,
?????HttpServletResponse response) throws ServletException, IOException {
???String vers = request.getParameter("vers");
???if ("1".equals(vers)) {
?????response.getWriter().print("已切换到当前版本");
version = ture；
???}
???if ("0".equals(vers)) {
?????response.getWriter().write("已切换到当前版本");
version = false；
???}
???String ver = request.getParameter("ver");
???if ("vercheck".equals(ver)) {
?????if (!version) {
???????response.getWriter().write("当前为0版本");
?????}
?????if (version) {
???????response.getWriter().write("当前为1版本");
?????}
???}
?}
}
关于用$.Ajax()控制按钮的选择与查看
原文地址：http://www.cnblogs.com/aizj/p/7641860.html