Javascript 带JS的Struts2
我不熟悉Json和Struts2。我想根据1st生成第二个下拉值，但是我没有得到任何回复，即使getjson中的警报也不会出现。我需要州列表数据，以便根据国家填充州列表Javascript 带JS的Struts2,javascript,struts2,Javascript,Struts2,我不熟悉Json和Struts2。我想根据1st生成第二个下拉值，但是我没有得到任何回复，即使getjson中的警报也不会出现。我需要州列表数据，以便根据国家填充州列表 <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "ht
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="basicstruts2" namespace="/" extends="struts-default">
<action name="changeStateName" class="ActionController.changeStateName" method="getStateName">
</action>
</package>
</struts>
<script type="text/javascript">
$(document).ready(function(){
$("#countrylist").change(function changeState(){
var country=$( "#countrylist option:selected" ).text();
alert("inside function"+country);
$.getJSON('changeStateName.action?country='+country,
function(data){
alert("inside getjson"+country);
var options = $("#StateList");
options.find('option')
.remove()
.end();
options.append($("<option />").val("-1").text("--Select State--"));
$.each(divisionList, function() {
options.append($("<option />").val(this).text(this));
});
});
});
</script>
</head>
<body>
<h1>Welcome file <s:property value="userName"/></h1>
<table cellpadding="5" cellspacing="5">
<tbody>
<tr><td><s:select id="countrylist" list="cuntry" key="CountryName" ></s:select></td></tr>
<tr><td><s:select id="StateList" list="state" key="StateName" headerKey="0" headerValue="--select--"></s:select></td></tr>
<tr><td><s:submit></s:submit></td></tr>
</tbody>
</table>
</body>
</html>
public class changeStateName {
private HashMap<String,String> stateList=new HashMap<String,String>();
public HashMap<String, String> getStateList() {
return stateList;
}
public void setStateList(HashMap<String, String> stateList) {
this.stateList = stateList;
}
public HashMap<String, String> getStateName() throws IOException{
System.out.println("inside changeStateName"+country);
HashMap<String,String> sl=new HashMap<String, String>();
sl.put("1", "kar");
sl.put("2", "Del");
sl.put("3", "Har");
setStateList(sl);
return stateList;
}
}
据我所见，changeStateName类中没有country变量。getStateName方法应该返回字符串
public String getStateName() throws IOException{
// Buisness logic here
return "success"; //hoping everything works fine :-)
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="basicstruts2" namespace="/" extends="json-default">
<action name="changeStateName" class="ActionController.changeStateName" method="getStateName">
<result name="success" type="json" />
</action>
</package>
</struts>
我希望这一切顺利 我建议你学习S2的基础知识。看一看。Govi，谢谢你的回复。实际上，这是一个jar问题，所以检查了jar上您在该url上给出的内容。我现在添加了同一个罐子，它很好用。如果您觉得我的答案很有用，请不要费心选择它作为答案：-