spring restful 服务Could not resolve view with name

[joey18]

请帮忙分析，多谢

type Exception report

message Could not resolve view with name 'simple/greeting' in servlet with name 'dispatcher'

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Could not resolve view with name 'simple/greeting' in servlet with name 'dispatcher'
	org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1237)
	org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1037)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:980)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://xmlns.jcp.org/xml/ns/javaee"
	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
	metadata-complete="true" version="3.1">
	<display-name>Tomcat Host Manager Application</display-name>
	<description>
    A scriptable host management web application for the Tomcat Web Server;
    Manager lets you view, create and remove virtual hosts.
  </description>
  
   <filter>  
       <filter-name>springUtf8Encoding</filter-name>  
       <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
       <init-param>  
           <param-name>encoding</param-name>  
           <param-value>UTF-8</param-value>  
       </init-param>  
       <init-param>  
           <param-name>forceEncoding</param-name>  
           <param-value>true</param-value>  
       </init-param>   
    </filter>  
    <filter-mapping>  
       <filter-name>springUtf8Encoding</filter-name>  
       <url-pattern>/*</url-pattern>  
   </filter-mapping>  
   
<!-- 	<filter>
		<filter-name>SetCharacterEncoding</filter-name>
		<filter-class>org.apache.catalina.filters.SetCharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>GBK</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>SetCharacterEncoding</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
 -->	
	<filter>
		<filter-name>CSRF</filter-name>
		<filter-class>org.apache.catalina.filters.CsrfPreventionFilter</filter-class>
		<init-param>
			<param-name>entryPoints</param-name>
			<param-value>/html,/html/,/html/list,/index.jsp</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>CSRF</filter-name>
		<servlet-name>HTMLHostManager</servlet-name>
	</filter-mapping>
	
<!--   <listener>  
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
  </listener>
 -->  
    <!-- 配置Spring核心控制器 -->
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/dispatcher.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
    
	<servlet>
		<servlet-name>EventServlet</servlet-name>
		<servlet-class>j.guide.web.servlet.EventServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>EventServlet</servlet-name>
		<url-pattern>/st/EventServlet</url-pattern>
	</servlet-mapping>

	<servlet>
		<servlet-name>EventUdateServlet</servlet-name>
		<servlet-class>j.guide.web.servlet.EventUpdateServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>EventUdateServlet</servlet-name>
		<url-pattern>/st/EventUpdate</url-pattern>
	</servlet-mapping>

 <listener>
 <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
 </listener>
 <listener>
 <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
 </listener>
 
	<security-constraint>
		<web-resource-collection>
			<web-resource-name>HostManager commands</web-resource-name>
			<url-pattern>/text/*</url-pattern>
		</web-resource-collection>
		<auth-constraint>
			<role-name>admin-script</role-name>
		</auth-constraint>
	</security-constraint>
	<security-constraint>
		<web-resource-collection>
			<web-resource-name>HTMLHostManager commands</web-resource-name>
			<url-pattern>/html/*</url-pattern>
		</web-resource-collection>
		<auth-constraint>
			<role-name>admin-gui</role-name>
		</auth-constraint>
	</security-constraint>
	<error-page>
		<error-code>401</error-code>
		<location>/WEB-INF/jsp/401.jsp</location>
	</error-page>
	<error-page>
		<error-code>403</error-code>
		<location>/WEB-INF/jsp/403.jsp</location>
	</error-page>
	<error-page>
		<error-code>404</error-code>
		<location>/WEB-INF/jsp/404.jsp</location>
	</error-page>
</web-app>

<?xml version="1.0" encoding="UTF-8"?>
<beans>
 
    <context:component-scan base-package="j.guide.*">
        <!-- 忽略这个类 -->
<!--         <context:exclude-filter type="assignable" expression="com.hoo.client.RESTClient"/>
 -->    </context:component-scan>
 
    <!-- annotation的方法映射适配器 -->
    <bean id="handlerAdapter" class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>
    
    <!-- xml视图，XStreamMarshaller，可以转换任何形式的java对象 -->
    <bean name="xStreamMarshallingView" class="org.springframework.web.servlet.view.xml.MarshallingView">
        <property name="marshaller">
            <bean class="org.springframework.oxm.xstream.XStreamMarshaller">  
                <!--  为了初始化XStreamMarshaller，这个类会把我们接口中得到结果以XML文档形式展现出来 -->
                <property name="autodetectAnnotations" value="true"/>  
            </bean>  
        </property>
    </bean>
        
    <!-- 视图解析器，根据视图的名称new ModelAndView(name)，在配置文件查找对应的bean配置 -->
    <bean class="org.springframework.web.servlet.view.BeanNameViewResolver">
        <property name="order" value="3"/>
    </bean>
 
    <!--  annotation默认的方法映射适配器 -->
    <bean id="handlerMapping" class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
        <property name="order" value="1" />
    </bean>
    
</beans>

[joey18]

package j.guide.web;
import java.util.concurrent.atomic.AtomicLong;

import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import j.guide.po.Greeting;

@Configuration
//@EnableAutoConfiguration
@RestController  
@RequestMapping("/simple")  
public class ListRest {

    private static final String template = "Hello, %s!";
    private final AtomicLong counter = new AtomicLong();

    @RequestMapping("/greeting")
    public Greeting greeting(@RequestParam(value="name", defaultValue="World") String name) {
    	System.out.println("start greeting");
        return new Greeting(counter.incrementAndGet(),
                            String.format(template, name));
    }
}

[joey18]

是因为

    @RequestMapping(value = "/greeting" , method = {RequestMethod.POST, RequestMethod.GET} )
    @ResponseBody
    public Greeting greeting(@RequestParam(value="name", defaultValue="World") String name) {

后续会报 Could not find acceptable representation， 是因为没有配置正确的 handlerAdapter 和 messageConverters

    <!-- annotation的方法映射适配器 -->
	<bean id="handlerAdapter"
		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
		<property name="messageConverters">
			<list>
				<bean
					class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" >
					 <property name="supportedMediaTypes" value="application/json" />
					</bean>
<!-- 					org.springframework.http.converter.json.MappingJackson2HttpMessageConverter
 -->			</list>
		</property>
	</bean>

[joey18]

已解决

引用 2 楼 u014731002 的回复:

是因为

    @RequestMapping(value = "/greeting" , method = {RequestMethod.POST, RequestMethod.GET} )
    @ResponseBody
    public Greeting greeting(@RequestParam(value="name", defaultValue="World") String name) {

后续会报 Could not find acceptable representation， 是因为没有配置正确的 handlerAdapter 和 messageConverters

    <!-- annotation的方法映射适配器 -->
	<bean id="handlerAdapter"
		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
		<property name="messageConverters">
			<list>
				<bean
					class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" >
					 <property name="supportedMediaTypes" value="application/json" />
					</bean>
<!-- 					org.springframework.http.converter.json.MappingJackson2HttpMessageConverter
 -->			</list>
		</property>
	</bean>