jsp页面发送请求到servlet的几种方式1

/**第一种提交方式
* */
function submitForm1(){

window.location.href="TestServlet?param=hrefMethod";
}
/**第二种提交方式
* */
function submitForm2(){

var form=document.forms[0];
form.action="TestServlet?param=formMethod";
form.submit();
}

/**
*第三种提交方式
*/
var xmlHttp;
//创建xmlHttp
function createXMLHttpRequest(){

if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari
xmlHttp=new XMLHttpRequest();
}else {// code for IE6, IE5
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
}

//Ajax使用get方式发送
function submitForm3(){

createXMLHttpRequest();
var queryString="TestServlet2?";
queryString=queryString+"&param=" + new Date().getTime();
xmlHttp.onreadystatechange=handleStateChange;
xmlHttp.open("GET",queryString,true);
xmlHttp.send(null);
}

//Ajax使用post方式发送
function submitForm4(){

createXMLHttpRequest();
var url="TestServlet2?param=" + new Date().getTime();
xmlHttp.open("POST",url,true);
xmlHttp.onreadystatechange=handleStateChange;
xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
xmlHttp.send("nihao");
}

function handleStateChange(){

if(xmlHttp.readyState==4){
//解析返回值
if(xmlHttp.status==200){
var responseText=document.createTextNode(xmlHttp.responseText);
alert("后台返回的返回值： "+xmlHttp.responseText);
}
}
}
/**第五种方式 post提交
* @param to
* @param p
*/
function submitForm5() {

var myForm=document.createElement("form")
var params={"param":"zs","param2":"li"};
myForm.method = "post";
myForm.action = "TestServlet";
myForm.style.display = "none";
for ( var k in params) {
var myInput = document.createElement("input");
myInput.name= k;
myInput.value= params[k];
myForm.appendChild(myInput);
}
document.body.appendChild(myForm);
myForm.submit();
//document.body.removeChild(myForm);
return myForm;
}