in clValid.jsp, i had used input page
<%@ taglib prefix="s" uri="/WEB-INF/struts-tags.tld" %>
<html>
<head>
<title>Strut2's actions</title>
<s:head/>
</head>
<body>
<center>
<h1> Service Application</h1>
<br/>
<br/>
<s:form action="ClientValid" validate="true" namespace="/" >
<s:textfield name="applName" label="Applicant Name:" />
<s:textfield name="charges" label="Payable charges:" />
<s:select label="Service Name:" emptyOption="true"
list="{'DrivingLicence','ElectricityBill',
'WaterBill','InsurancePremium'}"
name="service" />
<s:submit align="center" value="show client-Side validation"/>
</s:form>
</center>
</body>
</html>
in struts.xml
<package name="htcstruts"
extends="struts-default">
<action name="ClientValid"
class="htcstruts.ClientValidAction">
<result name="success">
/clResult.jsp
</result>
<result name="input">
/clValid.jsp
</result>
</action>
action class is
public class ClientValidAction extends ActionSupport {
private String applName;
private String service;
private double charges;
private String resStr;
private ConcurrentHashMap<String,Double> services;
public ClientValidAction() {
services = new ConcurrentHashMap<String,Double>();
services.put("DrivingLicence",new Double(100.5));
services.put("ElectricityBill",new Double(40.5));
services.put("WaterBill",new Double(35.5));
services.put("InsurancePremium",new Double(30.5));
}
public String execute() throws Exception {
double cost = services.get(service);
resStr = "hello! "+applName+" Charges for "+
service+ " are "+cost+".Please ready to pay";
return SUCCESS;
}
public String getResStr() {
return resStr;
}
public String getApplName() {
return applName;
}
public void setApplName(String newName) {
applName = newName;
}
public String getService() {
return service;
}
public void setService(String newService) {
service = newService;
}
public double getCharges() {
return charges;
}
public void setCharges(double newCharge) {
charges = newCharge;
}
}
used a validator.xml ClientValidAction-validation.xml
<!DOCTYPE validators PUBLIC
"-//OpenSymphony Group//XWork Validator 1.0.2//EN"
"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd";>
<validators>
<field name="applName">
<field-validator type="requiredstring">
true
<message>Applicant's name is required</message>
</field-validator>
</field>
<field name="charges">
<field-validator type="double">
9.99
120.0
<message>
Charges should be higher than ${minExclusive} and lessequal to
${maxInclusive}
</message>
</field-validator>
</field>
</validators>
when i am asking the input , i am getting in browser
FreeMarker template error!
Method public java.util.List
org.apache.struts2.components.Form.getValidators(java.lang.String) threw an
exception when invoked on org.apache.struts2.components.Form@1be20c
The problematic instruction:
----------
==> list tag.getValidators("${tagName}") as validator [on line 46, column 9
in template/xhtml/form-close-validate.ftl]
in include "/${parameters.templateDir}/xhtml/form-close-validate.ftl" [on
line 25, column 1 in template/xhtml/form-close.ftl]
----------
Java backtrace for programmers:
----------
freemarker.template.TemplateModelException: Method public java.util.List
org.apache.struts2.components.Form.getValidators(java.lang.String) threw an
exception when invoked on org.apache.struts2.components.Form@1be20c
at freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:130)
at freemarker.core.MethodCall._getAsTemplateModel(MethodCall.java:93)
at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)
at freemarker.core.IteratorBlock.accept(IteratorBlock.java:94)
at freemarker.core.Environment.visit(Environment.java:210)
at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:167)
at freemarker.core.Environment.visit(Environment.java:417)
at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102)
at freemarker.core.Environment.visit(Environment.java:210)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:210)
at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:79)
at freemarker.core.Environment.visit(Environment.java:210)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:210)
at freemarker.core.Environment.include(Environment.java:1483)
at freemarker.core.Include.accept(Include.java:169)
at freemarker.core.Environment.visit(Environment.java:210)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:210)
at freemarker.core.Environment.process(Environment.java:190)
at freemarker.template.Template.process(Template.java:237)
at
org.apache.struts2.components.template.FreemarkerTemplateEngine.renderTemplate(FreemarkerTemplateEngine.java:157)
at org.apache.struts2.components.UIBean.mergeTemplate(UIBean.java:559)
at org.apache.struts2.components.UIBean.end(UIBean.java:513)
at
org.apache.struts2.views.jsp.ComponentTagSupport.doEndTag(ComponentTagSupport.java:42)
at
org.apache.jsp.clValid_jsp._jspx_meth_s_005fform_005f0(clValid_jsp.java:164)
at org.apache.jsp.clValid_jsp._jspService(clValid_jsp.java:85)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:68)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:332)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:88)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:244)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:558)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:259)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:237)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:281)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at
com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.buildValidatorKey(AnnotationActionValidatorManager.java:212)
at
com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.getValidators(AnnotationActionValidatorManager.java:69)
at
com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.getValidators(AnnotationActionValidatorManager.java:65)
at org.apache.struts2.components.Form.getValidators(Form.java:265)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at freemarker.ext.beans.BeansWrapper.invokeMet
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