乙女座 Web サーバーの学習を始めたばかりです。Spring MVC アプリケーションで Jakcson JSON を操作しようとしています。この段階では、GET リクエストのシリアル化されたオブジェクトを取得できません。サーバーは「406 Not Acceptable」を返します。
The resource identified by this request is only capable of generating responses with characteristics not acceptable according to the request "accept" headers ().
Rome と JAXB2 を使用すると、同じ問題が発生します。
プロジェクト構成ファイルとコードは次のとおりです。
フラグメント pom.xml:
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>com.springsource.org.codehaus.jackson</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>com.springsource.org.codehaus.jackson.mapper</artifactId>
<version>1.0.0</version>
</dependency>
マニフェスト.MF
Manifest-Version: 1.0
Import-Bundle: com.springsource.org.apache.taglibs.standard;version="[
1.1.2,1.3)",com.springsource.org.codehaus.jackson;version="[1.0.0,1.0
.0]",com.springsource.org.codehaus.jackson.mapper;version="[1.0.0,1.0
.0]"
Bundle-Version: 2.3.0
Tool: Bundlor 1.0.0.RELEASE
Bundle-Name: GreenPages Web
Import-Library: org.springframework.spring;version="[3.0, 3.1)"
Bundle-ManifestVersion: 2
Bundle-SymbolicName: greenpages.web
Web-ContextPath: greenpages
Import-Package: javax.servlet.jsp.jstl.core;version="[1.1.2,1.2.0)",ja
vax.sql,org.apache.commons.dbcp,org.eclipse.virgo.web.dm;version="[2.
0.0, 3.0.0)",org.springframework.core.io;version="[3.0.0.RELEASE,3.1.
0)",org.springframework.stereotype;version="[3.0.0.RELEASE,3.1.0)",or
g.springframework.ui;version="[3.0.0.RELEASE,3.1.0)",org.springframew
ork.web.bind.annotation;version="[3.0.0.RELEASE,3.1.0)",org.springfra
mework.web.servlet.mvc.annotation;version="[3.0.0.RELEASE,3.1.0)",org
.springframework.web.servlet.view;version="[3.0.0.RELEASE,3.1.0)"
web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<welcome-file-list>
<welcome-file>/WEB-INF/pages/index.jsp</welcome-file>
</welcome-file-list>
<!-- CONFIGURE A PARENT APPLICATION CONTEXT -->
<context-param>
<param-name>contextClass</param-name>
<param-value>org.eclipse.virgo.web.dm.ServerOsgiBundleXmlWebApplicationContext</param-value>
</context-param>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- DISPATCHER SERVLET CONFIG -->
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
</web-app>
dispatcher-servlet.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
<context:component-scan base-package="greenpages.web"/>
<!-- Configures the @Controller programming model -->
<mvc:annotation-driven />
<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
GreenPagesController.java
package greenpages.web;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
public class GreenPagesController {
@RequestMapping("/home.htm")
public void home() {
}
// MappingJacksonHttpMessageConverter (requires Jackson on the classpath - particularly useful for serving JavaScript clients that expect to work with JSON)
@RequestMapping(value="/json.htm", method=RequestMethod.POST)
public @ResponseBody String readJson(@RequestBody JavaBean bean) {
return "Read from JSON " + bean;
}
@RequestMapping(value="/json.htm", method=RequestMethod.GET)
public @ResponseBody Object writeJson() {
return new Object();
}
}
index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Simple jsp page</title>
<script type="text/javascript" src="/greenpages/scripts/jquery-1.4.4.min.js"></script>
<script type="text/javascript">
$.getJSON("json.htm", function(message) {
console.log(message);
});
</script>
</head>
<body>
<form action="test.htm" method="get">
<input type="text" name="name">
<input type="submit">
</form>
</body>
</html>
AJAX リクエストhttp://localhost:8080/greenpages/json.htm : Firebug からのリクエスト ヘッダー:
GET /greenpages/json.htm HTTP/1.1
Host: localhost:8080
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 115
Connection: keep-alive
X-Requested-With: XMLHttpRequest
Referer: http://localhost:8080/greenpages/
Cookie: JSESSIONID=18000E4E096D7978F61F5D1E8105B784; JSESSIONID=35FB0925786699EC587A1B64F30517AD
応答ヘッダー:
HTTP/1.1 406 Not Acceptable
Server: Apache-Coyote/1.1
Content-Type: text/html;charset=utf-8
Content-Length: 1070
Date: Tue, 07 Dec 2010 11:15:58 GMT
問題は何でしょうか?