2
據我所知，如果您使用的是mvc：annotation-driven標籤，那麼您可以傳回JSON格式的對象，前提是相關的jackson jar文件存在於類路徑。情況就是這樣。無法從註釋控制器獲取自動格式化的json數據
但是，我收到了來自服務器的406（不可接受的）響應。
這裏是從註釋控制器的相關章節：
@RequestMapping(value = "/{groupEventUID}/{attendeeId}/update2.htm", method = RequestMethod.POST)
public
@ResponseBody
DateResponse submitDate2(@PathVariable String groupEventUID, @PathVariable int attendeeId, ModelMap model) {
return new DateResponse();
}
這是在客戶端頁面上的jQuery代碼：
<script type="text/JavaScript">
$(document).ready(function(){
$(".dayblock").click(function(){
$(event.target).css('background-color','green');
$.ajax({
url: "update2.htm",
type: "POST",
dataType: "json",
success: function(data){
alert("Data Loaded: " + data);
}
});
});
});
</script>
，我試過傑克遜罐子在classpath將是：
傑克遜核心ASL-1.7.2.jar和傑克遜映射器-ASL-1.7.2.jar
我也試過
傑克遜全1.7.2.jar
仍然得到了可怕的406 ..
是否DateResponse對象需要明確註釋將其轉換成JSON？我會認爲使用現有的字段名稱將是默認行爲。
我覺得最令人沮喪的是我看不到任何後端異常，所以我正在訴諸試驗和錯誤。
編輯：這裏是HTTP頭
Request URL:http://localhost:8080/7uid/5/update2.htm
Request Method:POST
Status Code:406 Not Acceptable
Request Headers
Accept-Charset:ISO-8859-1,utf-8;q=0.7,*;q=0.3
Accept-Encoding:gzip,deflate,sdch
Accept-Language:en-GB,en-US;q=0.8,en;q=0.6
Connection:keep-alive
Content-Length:0
Cookie:JSESSIONID=C8B515F9BE0773BF7916E3FA7F17EE30
Host:localhost:8080
Origin:http://localhost:8080
Referer:http://localhost:8080/7uid/5/showAttendeeCalendar.htm
User-Agent:Mozilla/5.0 (X11; U; Linux x86_64; en-US) AppleWebKit/534.13 (KHTML, like Gecko) Chrome/9.0.597.84 Safari/534.13
accept:application/json, text/javascript, */*; q=0.01
x-requested-with:XMLHttpRequest
Response Headers
Cache-Control:no-cache
no-store
Content-Length:1070
Content-Type:text/html;charset=utf-8
Date:Mon, 07 Feb 2011 16:31:03 GMT
Expires:Thu, 01 Jan 1970 00:00:00 GMT
Pragma:no-cache
Server:Apache-Coyote/1.1
，這裏是調度-servlet.xml文件：
<?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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd" >
<context:component-scan base-package="com.crowdbot.nightout.web"/>
<context:component-scan base-package="com.crowdbot.nightout.dao"/>
<bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping"/>
<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" />
<!--
Most controllers will use the ControllerClassNameHandlerMapping above, but
for the index controller we are using ParameterizableViewController, so we must
define an explicit mapping for it.
-->
<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="index.htm">indexController</prop>
</props>
</property>
</bean>
<!--
The index controller.
-->
<bean name="indexController"
class="org.springframework.web.servlet.mvc.ParameterizableViewController"
p:viewName="index" />
<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
<bean id="emf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="loadTimeWeaver">
<bean class="org.springframework.instrument.classloading.ReflectiveLoadTimeWeaver"/>
</property>
</bean>
<bean id="myTxManager"
class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="emf"/>
</bean>
<tx:annotation-driven transaction-manager="myTxManager" />
<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>
<mvc:annotation-driven/>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/"
p:suffix=".jsp" />
</beans>
EDIT2：這裏是catalina.out的
07-Feb-2011 17:05:46 org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /opt/java/jdk1.6.0_21/jre/lib/amd64/server:/opt/java/jdk1.6.0_21/jre/lib/amd64:/opt/java/jdk1.6.0_21/jre/../lib/$
07-Feb-2011 17:05:46 org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
07-Feb-2011 17:05:46 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 786 ms
07-Feb-2011 17:05:46 org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
07-Feb-2011 17:05:46 org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.29
07-Feb-2011 17:05:46 org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor host-manager.xml
07-Feb-2011 17:05:46 org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor ROOT.xml
07-Feb-2011 17:05:47 org.springframework.web.context.ContextLoader initWebApplicationContext
INFO: Root WebApplicationContext: initialization started
07-Feb-2011 17:05:47 org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing Root WebApplicationContext: startup date [Mon Feb 07 17:05:47 GMT 2011]; root of context hierarchy
07-Feb-2011 17:05:47 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/applicationContext.xml]
07-Feb-2011 17:05:47 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.s[email protected]3cc70b0d: defining beans []; root of factory hierarchy
07-Feb-2011 17:05:47 org.springframework.web.context.ContextLoader initWebApplicationContext
INFO: Root WebApplicationContext: initialization completed in 329 ms
07-Feb-2011 17:05:47 org.springframework.web.servlet.FrameworkServlet initServletBean
INFO: FrameworkServlet 'dispatcher': initialization started
07-Feb-2011 17:05:47 org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing WebApplicationContext for namespace 'dispatcher-servlet': startup date [Mon Feb 07 17:05:47 GMT 2011]; parent: Root WebApplicationContext
07-Feb-2011 17:05:47 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/dispatcher-servlet.xml]
07-Feb-2011 17:05:48 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.s[email protected]228b677f: defining beans [mainController,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annot$
07-Feb-2011 17:05:48 org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean createNativeEntityManagerFactory
INFO: Building JPA container EntityManagerFactory for persistence unit 'NightOutPU'
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/main] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/main/*] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/index.htm] onto handler [or[email protected]4d3af084]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/addEditGroupEvent.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/groupEventSuccess.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/{groupEventUID}/addEditAttendee.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/{groupEventUID}/showAttendees.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/{groupEventUID}/{attendeeId}/showAttendeeCalendar.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/{groupEventUID}/{attendeeId}/update.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/{groupEventUID}/{attendeeId}/update2.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/addEditGroupEvent.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/groupEventSuccess.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/{groupEventUID}/addEditAttendee.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/{groupEventUID}/showAttendees.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/{groupEventUID}/{attendeeId}/showAttendeeCalendar.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/{groupEventUID}/{attendeeId}/update.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/{groupEventUID}/{attendeeId}/update2.htm] onto handler [[email protected]]
07-Feb-2011 17:05:49 org.springframework.web.servlet.FrameworkServlet initServletBean
INFO: FrameworkServlet 'dispatcher': initialization completed in 1909 ms
07-Feb-2011 17:05:49 org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor manager.xml
07-Feb-2011 17:05:49 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory docs
07-Feb-2011 17:05:49 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory examples
07-Feb-2011 17:05:49 org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
這裏是同一時期的本地主機日誌：
07-Feb-2011 17:05:47 org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
07-Feb-2011 17:05:47 org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'dispatcher'
07-Feb-2011 17:05:49 org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
07-Feb-2011 17:05:49 org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()
看看http://stackoverflow.com/questions/4203333/spring-mvc-json-response – Javi 2011-02-07 15:49:19
嘗試使用Firebug或Fiddler記錄HTTP請求，並顯示它。 – axtavt 2011-02-07 15:51:21