Spring配置 - mvc：注解驱动，AnnotationMethodHandlerAdapter和JSON

在此先感谢您的帮助。Spring配置 - mvc：注解驱动，AnnotationMethodHandlerAdapter和JSON

我想让我的控制器方法之一返回JSON。用一个简单的测试出发：

@RequestMapping(value="/myReqPath", method=RequestMethod.GET) 
@ResponseBody 
public Map<String, String> myJsonMethod() { 

    Map<String, String> response = new TreeMap<String, String>(); 
    response.put("test", "test"); 

    return response; 

}

这是我的理解是，我需要<mvc:annotation-driven/>添加到我的servlet上下文来做到这一点。问题是当我添加它时，它会破坏我的自定义AnnotationMethodHandlerAdapter。？

[B]我如何提取和添加的<mvc:annotation-driven/>所需要的零部件从控制器返回JSON [/ B]

这里是我的servlet配置的相关部分：

<!--Skipping this for now... 
<mvc:annotation-driven/> 
--> 

<!-- JSON Marshaling --> 
<util:constant id="jsonBasicClassIntrospector" 
    static-field="org.codehaus.jackson.map.introspect.BasicClassIntrospector.instance" /> 
<bean id="jsonJaxbAnnotationIntrospector" 
    class="org.codehaus.jackson.xc.JaxbAnnotationIntrospector" /> 
<bean id="jsonVisibilityChecker" 
    class="org.codehaus.jackson.map.introspect.VisibilityChecker.Std" 
    factory-method="defaultInstance" /> 
<bean id="jsonDefaultTypeFactory" 
    class="org.codehaus.jackson.map.type.TypeFactory" 
    factory-method="defaultInstance" /> 
<bean id="jsonObjectMapper" class="org.codehaus.jackson.map.ObjectMapper"> 
    <property name="serializationConfig"> 
     <bean class="org.codehaus.jackson.map.SerializationConfig"> 
      <constructor-arg ref="jsonBasicClassIntrospector" /> 
      <constructor-arg ref="jsonJaxbAnnotationIntrospector" /> 
      <constructor-arg ref="jsonVisibilityChecker" /> 
      <constructor-arg><null/></constructor-arg> 
      <constructor-arg><null/></constructor-arg> 
      <constructor-arg ref="jsonDefaultTypeFactory" /> 
      <constructor-arg><null/></constructor-arg> 
     </bean> 
    </property> 
    <property name="deserializationConfig"> 
     <bean class="org.codehaus.jackson.map.DeserializationConfig"> 
      <constructor-arg ref="jsonBasicClassIntrospector" /> 
      <constructor-arg ref="jsonJaxbAnnotationIntrospector" /> 
      <constructor-arg ref="jsonVisibilityChecker" /> 
      <constructor-arg><null/></constructor-arg> 
      <constructor-arg><null/></constructor-arg> 
      <constructor-arg ref="jsonDefaultTypeFactory" /> 
      <constructor-arg><null/></constructor-arg> 
     </bean> 
    </property> 
</bean> 

... 

<!-- My custom AnnotationMethodHandlerAdapter... --> 
<bean id="sessionArgResolver" class="com.SessionParamArgumentResolver"/> 
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> 
    <property name="customArgumentResolver" ref="sessionArgResolver"/> 
</bean>

既然这样，我的控制器方法调用但是，浏览器返回HTTP状态406： 406无法接受 - [URL] HTTP：//本地主机：8080 /对myApp/myReqPath [/ URL]

来源

2012-04-19 wannabecoder

如果你已经有一个定制AnnotationMethodHandlerAdapter十月您可以添加一个HttpMessageConverter s的列表：

<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> 
    <property name="customArgumentResolver" ref="sessionArgResolver"/> 
    <property name = "messageConverters"> 
     <list> 
      <bean 
       class = "org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"> 
       <property name = "objectMapper" ref = "jsonObjectMapper" /> 
      </bean> 
     </list> 
    </property> 
</bean>

来源

2012-04-19 13:48:44 axtavt

Spring配置 - mvc：注解驱动，AnnotationMethodHandlerAdapter和JSON

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