Question

我已经看过几次问这个问题了，我已经尝试了所有解决方案而没有任何帮助。我试图使用spring来处理我的servlet方法但由于某种原因我的一个方法没有运行。测试方法正在运行，它将字符串作为参数并返回一个字符串。但是将body作为参数并返回int的add方法并不起作用，我得到了这个异常我的web.xml是

<?xml version="1.0" encoding="utf-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee"xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">

<servlet>
    <servlet-name>mvc-dispatcher</servlet-name>
    <servlet-class>
                org.springframework.web.servlet.DispatcherServlet
            </servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>mvc-dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
</context-param>

<listener>
    <listener-class>
                org.springframework.web.context.ContextLoaderListener
            </listener-class>
</listener>

我的mvc-dispacher-sevlet.xml是

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:mvc="http://www.springframework.org/schema/mvc" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
    http://www.springframework.org/schema/beans     
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-3.0.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd"
    >

<!-- Need DI a message into controller, so auto component scan is disabled, 
    to avoid double create the movieController bean. Only controller need this 
    hack. -->
<!-- <context:component-scan base-package="com.y2apps.quoteformessenger.webapp"> 
    <context:exclude-filter type="regex" expression="com.y2apps.quoteformessenger.webapp.Movie.*" 
    /> </context:component-scan> -->

<mvc:annotation-driven />


<bean
    class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
    <property name="messageConverters">
        <util:list id="beanList">
            <ref bean="stringHttpMessageConverter" />
            <ref bean="marshallingHttpMessageConverter" />
        </util:list>
    </property>

</bean>

<bean id="stringHttpMessageConverter"
    class="org.springframework.http.converter.StringHttpMessageConverter" />

<bean id="marshallingHttpMessageConverter"
    class="org.springframework.http.converter.xml.MarshallingHttpMessageConverter">
    <property name="marshaller" ref="castorMarshaller" />
    <property name="unmarshaller" ref="castorMarshaller" />
</bean>

<bean id="castorMarshaller" class="org.springframework.oxm.castor.CastorMarshaller" />

    <bean class="com.test.webapp.ClientController">
</bean>

我的控制器是

@Controller
public class ClientController implements QuoteService {

@RequestMapping("/test")
public @ResponseBody String getTest(@RequestParam("message") String message) {
    return "Hello " + message;
}
@RequestMapping(Constants.ADD_QUOTES_PATH)
public int add(@RequestBody String csv) {
    System.out.println(csv);
    return 2;
}

我得到的例外是

[INFO] javax.servlet.ServletException: No adapter for handler [public int com.test.webapp.ClientController.addQuotes(java.lang.String)]: Does your handler implement a supported interface like Controller?
[INFO]  at org.springframework.web.servlet.DispatcherServlet.getHandlerAdapter(DispatcherServlet.java:1100)
[INFO]  at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:893)
[INFO]  at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
[INFO]  at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
[INFO]  at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
[INFO]  at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
[INFO]  at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
[INFO]  at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
[INFO]  at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
[INFO]  at com.google.appengine.api.socket.dev.DevSocketFilter.doFilter(DevSocketFilter.java:74)
[INFO]  at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[INFO]  at com.google.appengine.tools.development.ResponseRewriterFilter.doFilter(ResponseRewriterFilter.java:127)
[INFO]  at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[INFO]  at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:34)
[INFO]  at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[INFO]  at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:63)
[INFO]  at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[INFO]  at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
[INFO]  at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[INFO]  at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:125)
[INFO]  at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[INFO]  at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectRequest(DevAppServerModulesFilter.java:366)
[INFO]  at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectModuleRequest(DevAppServerModulesFilter.java:349)
[INFO]  at com.google.appengine.tools.development.DevAppServerModulesFilter.doFilter(DevAppServerModulesFilter.java:116)
[INFO]  at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[INFO]  at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
[INFO]  at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
[INFO]  at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
[INFO]  at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
[INFO]  at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
[INFO]  at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:98)
[INFO]  at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
[INFO]  at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:503)
[INFO]  at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
[INFO]  at org.mortbay.jetty.Server.handle(Server.java:326)
[INFO]  at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
[INFO]  at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938)
[INFO]  at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
[INFO]  at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
[INFO]  at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
[INFO]  at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
[INFO]  at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

谢谢你的帮助

Answer 1

我错过了@ResponseBody，因为我的方法应该是

@RequestMapping(Constants.ADD_QUOTES_PATH)
public @ResponseBody int add(@RequestBody String csv) { 
    return 2;
}

而不是

@RequestMapping(Constants.ADD_QUOTES_PATH)
public int add(@RequestBody String csv) { 
    return 2;
}

javax.servlet.ServletException：没有适配器的适配器你的处理程序是否实现了像Controller这样的支持接口？

1 个答案: