一、异常描述

通过springframework的webmvc注册接口接口回org.springframework.ui.ModelMap类型（返回类型为String可以正常）时，通过浏览器访问时报出“HTTP Status 406 - type Status report message description The resource identified by this request is only capable of generating responses with characteristics not acceptable according to the request "accept" headers ().”提示，如下图所示

将log4j的等级设置debug,后台日志报“org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation..org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation.. Null ModelAndView returned to DispatcherServlet with name 'springmvc': assuming HandlerAdapter completed request handling”,具体如下所示

[02:23:35] [DEBUG]   DispatcherServlet:  DispatcherServlet with name 'springmvc' processing GET request for [/xwood-test/generateCodex.do]@b@[02:23:35] [DEBUG]   DefaultListableBeanFactory:  Creating instance of bean 'verificationCodeController'@b@[02:23:35] [DEBUG]   DefaultListableBeanFactory:  Finished creating instance of bean 'verificationCodeController'@b@[02:23:35] [DEBUG]   DefaultAnnotationHandlerMapping:  Mapping [/generateCodex.do] to HandlerExecutionChain with handler [com.xwood.test.vcode.VerificationCodeController@14d733ca] and 1 interceptor@b@[02:23:35] [DEBUG]   DispatcherServlet:  Last-Modified value for [/xwood-test/generateCodex.do] is: -1@b@[02:23:35] [DEBUG]   HandlerMethodInvoker:  Invoking request handler method: public org.springframework.web.servlet.ModelAndView com.xwood.test.vcode.VerificationCodeController.generateCodex(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws javax.servlet.ServletException,java.io.IOException@b@[02:23:35] [DEBUG]   AnnotationMethodHandlerExceptionResolver:  Resolving exception from handler [com.xwood.test.vcode.VerificationCodeController@14d733ca]: org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation@b@[02:23:35] [DEBUG]   ResponseStatusExceptionResolver:  Resolving exception from handler [com.xwood.test.vcode.VerificationCodeController@14d733ca]: org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation@b@[02:23:35] [DEBUG]   DefaultHandlerExceptionResolver:  Resolving exception from handler [com.xwood.test.vcode.VerificationCodeController@14d733ca]: org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation@b@[02:23:35] [DEBUG]   DispatcherServlet:  Null ModelAndView returned to DispatcherServlet with name 'springmvc': assuming HandlerAdapter completed request handling@b@[02:23:35] [DEBUG]   DispatcherServlet:  Successfully completed request

二、解决方法

1.将spring-mvc.xml的配置annotation-driven等相关，之前配置如下

<?xml version="1.0" encoding="UTF-8"?>@b@<beans xmlns="http://www.springframework.org/schema/beans"@b@		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"@b@		xmlns:context="http://www.springframework.org/schema/context"@b@		xmlns:aop="http://www.springframework.org/schema/aop"@b@		xmlns:mvc="http://www.springframework.org/schema/mvc"@b@		xsi:schemaLocation="@b@			http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd@b@			http://www.springframework.org/schema/aop  http://www.springframework.org/schema/aop/spring-aop-2.5.xsd@b@			http://www.springframework.org/schema/mvc  http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd@b@			http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">@b@		@b@		<!-- 自动扫描Action加入Spring上下文 Scope:prototype -->@b@		<context:component-scan base-package="com.xwood.test" scope-resolver="org.springframework.context.annotation.Jsr330ScopeMetadataResolver"/> @b@		 @b@</beans>

修改后如下,重启服务接口可以正常访问了，问题解决

<?xml version="1.0" encoding="UTF-8"?>@b@<beans xmlns="http://www.springframework.org/schema/beans"@b@		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"@b@		xmlns:context="http://www.springframework.org/schema/context"@b@		xmlns:aop="http://www.springframework.org/schema/aop"@b@		xmlns:mvc="http://www.springframework.org/schema/mvc"@b@		xsi:schemaLocation="@b@			http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd@b@			http://www.springframework.org/schema/aop  http://www.springframework.org/schema/aop/spring-aop-2.5.xsd@b@			http://www.springframework.org/schema/mvc  http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd@b@			http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">@b@		@b@		<!-- 自动扫描Action加入Spring上下文 Scope:prototype -->@b@		<context:component-scan base-package="com.xwood.test" use-default-filters="false">@b@			<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>@b@			<context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>@b@		</context:component-scan>@b@		@b@		<mvc:annotation-driven>@b@			<mvc:message-converters register-defaults="true">@b@				<!-- 将StringHttpMessageConverter的默认编码设为UTF-8 -->@b@				<bean class="org.springframework.http.converter.StringHttpMessageConverter">@b@			    	<constructor-arg value="UTF-8" />@b@				</bean>@b@				<!-- 将Jackson2HttpMessageConverter的默认格式化输出设为true -->@b@				<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">@b@	                <property name="prettyPrint" value="true"/>@b@	            </bean>			@b@	  		</mvc:message-converters>@b@		</mvc:annotation-driven>@b@		@b@		 @b@</beans>

备注, web.xml配置参考如下

<context-param>@b@		<param-name>contextConfigLocation</param-name>@b@		<param-value>@b@			classpath*:/spring-context.xml@b@		</param-value>@b@	</context-param>@b@	 @b@	<listener>@b@		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>@b@	</listener>@b@	 @b@	 <servlet>@b@        <servlet-name>springmvc</servlet-name>@b@        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>@b@        <init-param>@b@            <param-name>contextConfigLocation</param-name>@b@            <param-value>/WEB-INF/spring-mvc.xml</param-value>@b@        </init-param>@b@        <load-on-startup>1</load-on-startup>@b@    </servlet>@b@    @b@    <servlet-mapping>@b@        <servlet-name>springmvc</servlet-name>@b@        <url-pattern>/*</url-pattern>@b@    </servlet-mapping>