send an Ajax request to Spring MVC - ajax

Question

I have a problem with method handler return value in spring mvc
I have a grid and when user click on a row I have to show the details of row.
I don't want to send row Id in URL,when I use #PathVariable everything work perfect
I used jqGrid in my jsp to get the Id of selected row
onSelectRow: function(id) {
document.location.href = "/customer/" + id;
}
my controller is :
#RequestMapping("/customer")
#Controller
public class CustomerController {
final Logger logger = LoggerFactory.getLogger(CustomerController.class);
#Autowired
private CustomerService customerService;
#Autowired
MessageSource messageSource;
#RequestMapping(value = "/{id}", method = RequestMethod.GET)
public String show(Authentication authentication, #PathVariable("id") int id, Model uiModel, Locale locale) {
User user = (User) authentication.getPrincipal();
String result = null;
try {
if (user != null) {
if (user.getRole().getRoleType().equalsIgnoreCase("ADMIN")) {
Customer customer = customerService.getCustomerById(id);
uiModel.addAttribute("customer", customer);
result = "customer/show";
} else
result = "/customer/all";
}
} catch (Exception e) {
uiModel.addAttribute("message", new Message("error",
messageSource.getMessage("customer_get_all_fail", new Object[]{}, locale)));
e.getStackTrace();
}
return result;
}
my apache tiles config for load detail page:
<definition extends="default" name="customer/show">
<put-attribute name="body"
value="/WEB-INF/views/customer/showCustomerData.jspx" />
and my servelt-context.xml
<mvc:annotation-driven/>
<mvc:resources location="/, classpath:/META-INF/web-resources/" mapping="/resources/**"/>
<tx:annotation-driven/>
<context:annotation-config/>
<mvc:default-servlet-handler/>
<mvc:interceptors>
<bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor" p:paramName="lang"/>
</mvc:interceptors>
<bean class="org.springframework.context.support.ReloadableResourceBundleMessageSource" id="messageSource"
p:basenames="WEB-INF/i18n/messages,WEB-INF/i18n/application" p:fallbackToSystemLocale="false"/>
<bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
<property name="validationMessageSource" ref="messageSource"/>
</bean>
<context:component-scan base-package="com.sefryek.sywf.web.controller"/>
<!-- Enable file upload functionality -->
<!--<bean class="org.springframework.web.multipart.support.StandardServletMultipartResolver" id="multipartResolver"/>-->
<!-- Configure the multipart resolver -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- one of the properties available; the maximum file size in bytes -->
<property name="maxUploadSize" value="10000000"/>
</bean>
<bean id="contentNegotiatingResolver"
class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
<property name="order"
value="#{T(org.springframework.core.Ordered).HIGHEST_PRECEDENCE}"/>
<property name="mediaTypes">
<map>
<entry key="html" value="text/html"/>
<entry key="pdf" value="application/pdf"/>
<entry key="xsl" value="application/vnd.ms-excel"/>
<entry key="xml" value="application/xml"/>
<entry key="json" value="application/json"/>
<entry key="js" value="application/javascript"/>
</map>
</property>
</bean>
<!--<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"-->
<!--p:prefix="/WEB-INF/views/" p:suffix=".jsp" p:order="#{contentNegotiatingResolver.order+0}"/>-->
<bean id="localeResolver" class="org.springframework.web.servlet.i18n.CookieLocaleResolver"
p:cookieName="locale" p:cookieMaxAge="11"/>
<!-- Tiles Configuration -->
<bean class="org.springframework.web.servlet.view.UrlBasedViewResolver" id="tilesViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.tiles2.TilesView"/>
</bean>
<bean class="org.springframework.web.servlet.view.tiles2.TilesConfigurer" id="tilesConfigurer">
<property name="definitions">
<list>
<value>/WEB-INF/layouts/layouts.xml</value>
<!-- Scan views directory for Tiles configurations -->
<value>/WEB-INF/views/**/views.xml</value>
</list>
</property>
</bean>
<bean id="themeResolver" class="org.springframework.web.servlet.theme.CookieThemeResolver"
p:cookieName="theme" p:defaultThemeName="standard"/>
<bean id="themeSource" class="org.springframework.ui.context.support.ResourceBundleThemeSource"/>
</beans>
and anything work perfect,but I have to send my data in request object instead of in URL
my code
in jsp :
onSelectRow: function(id) {
$.ajax({
url : '${showSelectedCustomer}',
dataType: 'JSON',
data:{ id: id },
type:'POST',
success: function(response) {
} ,
error : function(r) {
}
});
}
and my method handler:
#RequestMapping(value = "/showSelectedCustomer", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE)
//#ResponseBody
public String showSelectedCustomer(
Authentication authentication,
#RequestParam String id,
Model uiModel, Locale locale) {
User user = (User) authentication.getPrincipal();
Customer customer = null;
Map<String, Object> map = new HashMap<String, Object>();
try {
if (user != null) {
if (user.getRole().getRoleType().equalsIgnoreCase("ADMIN")) {
customer = customerService.getCustomerById(Integer.valueOf(id));
uiModel.addAttribute("customer", customer);
}
}
} catch (Exception e) {
uiModel.addAttribute("message", new Message("error",
messageSource.getMessage("customer_get_all_fail", new Object[]{}, locale)));
e.getStackTrace();
}
return "customer/show";
}
my method handler is called but after that nothing is happened.
my point is showCustomerData.jspx that show a details of customer isn't loaded.
please let me know what should I do and what my problem is?
when I use my data with Ajax,how should I return my return value to see detail page (showCustomerData.jspx)
when I change my method handler to return a map with map.put("message", "success") data,my ajax success function is called but I don't know how can I redirect it to show my details page
thank you

Answer 1

You first need to create CustomerInput pojo like below
class CustomerInput{
private Integer id;
//setter getter
}
Then create controller method like below
#ResponseBody public String showSelectedCustomer( Authentication authentication, #RequestBody CustomerInput customerInput, Model uiModel, Locale locale) {
}