直入主题--
页面表单异步提交：$.post(‘<%=request.getContextPath()%>/web/register.html‘, $(form).serialize(), function(data){...});
java后台springMVC的controller接受请求：
@RequestMapping("register")
@ResponseBody
public Map<String, String> register(HttpServletRequest request, HttpServletResponse response, User user) {
Map<String, String> resMap = loginService.insertUser(user);
return resMap;
}
错误描述，springMVC的controller中接收到页面发送的ajax请求，java后台处理时报错：
[DEBUG] [2016-02-14 20:08:09] org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver.resolveException(133) | Resolving exception from handler [[email protected]]: org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation
[DEBUG] [2016-02-14 20:08:09] org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver.resolveException(133) | Resolving exception from handler [[email protected]]: org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation
[DEBUG] [2016-02-14 20:08:09] org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver.resolveException(133) | Resolving exception from handler [[email protected]]: org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation
[DEBUG] [2016-02-14 20:08:09] org.springframework.web.servlet.DispatcherServlet.processDispatchResult(1034) | Null ModelAndView returned to DispatcherServlet with name ‘rest‘: assuming HandlerAdapter completed request handling
[DEBUG] [2016-02-14 20:08:09] org.springframework.web.servlet.FrameworkServlet.processRequest(999) | Successfully completed request
[DEBUG] [2016-02-14 20:08:09] org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(251) | Returning cached instance of singleton bean ‘sqlSessionFactory‘
此时对应的页面报错为：
POST http://127.0.0.1:8080/maven-web-demo/web/register.html 406 (Not Acceptable)
原因：缺少spring-mvc的json配置
解决方法：
1.添加spring-mvc的json依赖jar包：jackson-core和jackson-databind
2.在spring-mvc.xml中添加：
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="mappingJacksonHttpMessageConverter" />
</list>
</property>
</bean>
<bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>
OK，问题解决！