use ajax with spring 3

[fabian verbeek]

Hi,

I'm trying to use ajax with spring 3 but i can't find a correct tuto so i post here some questions.
here is my function js

function getDetails(id) {
	$.ajax({
	    type: "post",
	    url: "getDetails", //your url
	    contentType: "application/json", 
	    data: { id: id } ,
	    success: function(result) {
	        alert('Employee saved successfully'+result);
	    },
	    error: function(){
	        alert('Error occured');
	    }
	});
	}

here is my controller where i want to get my object Menu:

@RequestMapping(value="/getDetails", method=RequestMethod.POST)
    public Map<String, ? extends Object> getDetails(@RequestBody String id, HttpServletResponse response) {
		MenuService ms = new MenuService();
		Menu m = ms.get((int) id);
		System.out.println("testt"+m.getMenuDesc()+"&&&"+id);
                //i receive the correct message in the console
		return Collections.singletonMap("id", m.getMenuDesc());

    }

How can i get my param id from my js function getDetails?
i receive an alert error from my function getDetails: Error occured
How can i get my object in my function js to display the result? for example :
document.getElementById('txtDesc').value = object.getDesc()

thanks for your help

[fabian verbeek]

I added this 2 jar:
jackson-core-asl-1.9.9.jar
jackson-mapper-asl-1.9.9.jar

modify my spring-context.xml:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org /schema/context/spring-context-3.0.xsd"> <bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource"> <property name="basenames"> <list> <value>classpath:locale/message</value> </list> </property> <property name="defaultEncoding" value="UTF-8"/> </bean> <bean id="localeResolver" class="org.springframework.web.servlet.i18n.SessionLocaleResolver"> <property name="defaultLocale" value="fr" /> </bean> <mvc:interceptors> <bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor"> <property name="paramName" value="lang" /> </bean> </mvc:interceptors> <context:component-scan base-package="com.starterSpring.controller.admin" /> <mvc:resources mapping="/resources/**" location="/resources/" /> <mvc:annotation-driven /> <!-- i added this next 8 lines --> <bean id="jacksonMessageConverter" class="org.springframework.http.converter.json .MappingJacksonHttpMessageConverter"></bean> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="jacksonMessageConverter"/> </list> </property> </bean> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/admin/" /> <property name="suffix" value=".jsp" /> </bean> </beans>
i modify the servlet to return my object:

@RequestMapping(value="/getDetails", method=RequestMethod.POST)
    public Menu getDetails(@RequestBody String id/*, HttpServletResponse response*/) {//Map<String, ? extends Object>
		MenuService ms = new MenuService();
		Menu m = ms.get(1);
		System.out.println("testt"+m.getMenuDesc()+"&&&"+id);
		return m;
		//return Collections.singletonMap("id", m.getMenuDesc());

    }

and finally my js function that return the alert error!

function getDetails(id) {
	$.ajax({
	    type: "post",
	    url: "getDetails", //your url
	    data: { id: id } ,
	    dataType : "json",
	    contentType: "application/json", 
	    success: function(data) {
	        alert('Employee saved successfully: '+data.menuDesc);
	    },
	    error: function(jqXHR, textStatus, errorThrown){
	    	alert(jqXHR.responseText);
	    }
	});
}

the error say: La ressource demandée (/starterSpring/WEB-INF/jsp/admin/getDetails.jsp) n'est pas disponible.
it's correct but how can i tell it thats the same page : admin/gestionMenu.jsp
thansk for your help

[fabian verbeek]

it works i forgot : @ResponseBody