javascript与jsp发送请求到servlet的几种方式实例

2023-09-15 07:25:05 71

/**第一种提交方式 **/ functionsubmitForm1(){ window.location.href="TestServlet?param=hrefMethod"rel="externalnofollow"; } /**第二种提交方式 **/ functionsubmitForm2(){ varform=document.forms[0]; form.action="TestServlet?param=formMethod"; form.submit(); } /** *第三种提交方式 */ varxmlHttp; //创建xmlHttp functioncreateXMLHttpRequest(){ if(window.XMLHttpRequest){//codeforIE7+,Firefox,Chrome,Opera,Safari xmlHttp=newXMLHttpRequest(); }else{//codeforIE6,IE5 xmlHttp=newActiveXObject("Microsoft.XMLHTTP"); } } //Ajax使用get方式发送 functionsubmitForm3(){ createXMLHttpRequest(); varqueryString="TestServlet2?"; queryString=queryString+"¶m="+newDate().getTime(); xmlHttp.onreadystatechange=handleStateChange; xmlHttp.open("GET",queryString,true); xmlHttp.send(null); } //Ajax使用post方式发送 functionsubmitForm4(){ createXMLHttpRequest(); varurl="TestServlet2?param="+newDate().getTime(); xmlHttp.open("POST",url,true); xmlHttp.onreadystatechange=handleStateChange; xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); xmlHttp.send("nihao"); } functionhandleStateChange(){ if(xmlHttp.readyState==4){ //解析返回值 if(xmlHttp.status==200){ varresponseText=document.createTextNode(xmlHttp.responseText); alert("后台返回的返回值："+xmlHttp.responseText); } } } /**第五种方式post提交 *@paramto *@paramp */ functionsubmitForm5(){ varmyForm=document.createElement("form") varparams={"param":"zs","param2":"li"}; myForm.method="post"; myForm.action="TestServlet"; myForm.style.display="none"; for(varkinparams){ varmyInput=document.createElement("input"); myInput.name=k; myInput.value=params[k]; myForm.appendChild(myInput); } document.body.appendChild(myForm); myForm.submit(); //document.body.removeChild(myForm); returnmyForm; }

<%@pagelanguage="java"contentType="text/html;charset=utf-8" pageEncoding="utf-8"%>

Inserttitlehere <%-- <% RequestDispatcherrd=getServletContext().getRequestDispatcher("/TestServlet?param=方式一"); rd.forward(request,response); %>--%> <%--<% response.sendRedirect("TestServlet?param=方式二"); %>--%> <%----%> <%--<% intstayTime=0; StringURL="TestServlet?param=Method5"; Stringcontent=stayTime+";URL="+URL; response.setHeader("REFRESH",content); %>--%> <% response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY); StringnewLocation="TestServlet?param=Method6"; response.setHeader("Location",newLocation); %>

javascript与jsp发送请求到servlet的几种方式实例

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