org.springframework.dao.InvalidDataAccessApiUsageException: Write operations are not allowed in read-only mode (FlushMode.MANUAL): Turn your Session into FlushMode.COMMIT/AUTO or remove 'readOnly' marker from transaction definition.	org.springframework.orm.hibernate3.HibernateTemplate.checkWriteOperationAllowed(HibernateTemplate.java:1175)	org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate(HibernateTemplate.java:685)	org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate(HibernateTemplate.java:1)	org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406)	org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)	org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTemplate.java:683)	dao.impl.IAirQualityIndexDaoImpl.addAir(IAirQualityIndexDaoImpl.java:63)	biz.impl.IAirQualityIndexBizImpl.addAir(IAirQualityIndexBizImpl.java:29)	action.AirAction.saveair(AirAction.java:36)	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	java.lang.reflect.Method.invoke(Method.java:497)	com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:450)	com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:289)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:252)	org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167)	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)	org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:239)	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:239)	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:252)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:161)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)	org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)	org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:563)	org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)	org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)	org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)