I have a text area and a text link in a jsp page,when I click this text
link,I will call struts2 action by using ajax,like follows:
/*-----jsp page-----*/
<html>
<script type="text/javascript">
var http = getHttpObject();
function getHttpObject(){
var xmlhttp = false;
if(window.XMLHttpRequest){
xmlhttp = new XMLHttpRequest();
if(xmlhttp.overrideMimeType){
xmlhttp.overrideMimeType('text/xml');
}
}
else{
try{
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
}
catch(e){
try{
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
catch(e){
xmlhttp = false;
}
}
}
return xmlhttp;
}
function handleHttpResponse(){
if(http.readyState == READY_STATE_COMPLETE){
if(http.status == 200){
var text = http.responseText;
if(text != null || text.length >0)
alert(text);
}
else{
alert("error!!!");
alert(http.status);
}
}
}
function test(){
var t1=document.forms[0].abc.value;
alert(t1);
var url = "add.action";
http.open("POST",url,false);
http.onreadystatechange = handleHttpResponse;
http.send(null);
}
</script>
<body>
<s:form action='add.action' method='post'>
<table>
<tr><td><s:textfield label="test1" name="abc"/></td></tr>
</table>
<a href="javascript:test()">tt</a>
</s:form>
</body>
</html>
/*----struts2 action----*/
public class TestAction extends ActionSupport{
String abc;
public String add() throws Exception {
System.out.println("abc="+abc);
return null;
}
public String getAbc(){
return abc;
}
public void setAbc(String abc){
this.abc=abc;
}
}
I put some text in textfield and then I click tt link,it call struts2
action,it execute System.out.println("abc="+abc),it should show the text
value,but it shows null value!!!
abc=null
If I don't use ajax,and only use document.forms[0].submit(),struts2 can show
right value,like follows:
abc=the text you put
I am puzzled with it! Why struts2 can't get jsp page value by using ajax?
Anybody could tell me how to correct my above code?
Thanks in advance!
