java - 具有多个 Controller 的单个 DispatcherServlet

Question

我正在尝试使用 Spring MVC 3.0 创建一些安静的 Web 服务。我目前遇到一个问题，即我的 2 个 Controller 中只有 1 个在任何给定时间都可以工作。事实证明，按字母顺序排序时，无论哪个类排在前面，都可以正常工作。我得到的错误是:

handleNoSuchRequestHandlingMethod 找不到 Servlet 请求的匹配处理程序方法:路径“/polinq.xml”，方法“GET”，参数映射[[空]]

我之前也收到过一条非常类似的消息，只不过 map 不是空的，而是类似 map[v-->String(array)] 的东西

无论消息如何，当前 LocationCovgController 都可以工作，而 PolicyInquiryController 则不能。如果我将 PolicyInquiryController 更改为 APolicyInquiryController，那么它将开始正常运行，并且 LocationCovgController 将停止工作。

任何帮助将不胜感激。

非常感谢，杰里米

下面提供的信息包括两个 Controller 类的框架以及定义如何设置 spring 的 servlet 配置文件。

Controller 1

package org.example;
@Controller
@RequestMapping(value = "/polinq.*")
public class PolicyInquiryController {

    @RequestMapping(value = "/polinq.*?comClientId={comClientId}")
    public ModelAndView getAccountSummary(
        @PathVariable("comClientId") String commercialClientId) {
        // setup of variable as was removed.
        ModelAndView mav = new ModelAndView("XmlView", 
            BindingResult.MODEL_KEY_PREFIX + "accsumm", as);
        return mav;
    }
}

Controller 2

package org.example;

@Controller
@RequestMapping(value = "/loccovginquiry.*")
public class LocationCovgController {
    @RequestMapping(value = "/loccovginquiry.*method={method}")
    public ModelAndView locationCovgInquiryByPolicyNo(
        @PathVariable("method")String method) {
        ModelAndView mav = new ModelAndView("XmlView",
            BindingResult.MODEL_KEY_PREFIX + "loccovg", covgs);
        return mav;
    }
}

Servlet 配置

<context:component-scan base-package="org.example." />

<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver"     p:order="0">
  <property name="mediaTypes">
    <map>
      <entry key="atom" value="application/atom+xml"/>
      <entry key="xml" value="application/xml"/>
      <entry key="json" value="application/json"/>
      <entry key="html" value="text/html"/>
    </map>
   </property>

  <property name="defaultContentType" value="text/html"/>
  <property name="ignoreAcceptHeader" value="true"/>
  <property name="favorPathExtension" value="true"/>
  <property name="viewResolvers">
     <list>
         <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/jsp/"/>
            <property name="suffix" value=".jsp"/>
          </bean>
      </list>
   </property>
   <property name="defaultViews">
      <list>
        <bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView"/>
      </list>
  </property>
</bean>

<bean class="org.springframework.web.servlet.view.BeanNameViewResolver" />

<bean id="XmlView" class="org.springframework.web.servlet.view.xml.MarshallingView">
  <property name="marshaller" ref="marshaller"/>
</bean>

<oxm:jaxb2-marshaller id="marshaller">
  <oxm:class-to-be-bound name="org.example.policy.dto.AccountSummary"/>
  <oxm:class-to-be-bound name="org.example.policy.dto.InsuredName"/>
  <oxm:class-to-be-bound name="org.example.policy.dto.Producer"/>
  <oxm:class-to-be-bound name="org.example.policy.dto.PropertyLocCoverage"/>
  <oxm:class-to-be-bound name="org.example.policy.dto.PropertyLocCoverages"/>
</oxm:jaxb2-marshaller>

Answer 1

您应该使用@RequestParam而不是@PathVariable来绑定(bind)请求参数(即？之后的参数，您也不用需要将它们包含到 @RequestMapping 中)。此外，您不需要在类级别为此配置使用 @RequestMapping:

Controller 1

package org.example;

@Controller
public class PolicyInquiryController {
    @RequestMapping(value = "/polinq")
    public ModelAndView getAccountSummary(
        @RequestParam("comClientId") String commercialClientId) {
        // setup of variable as was removed.
        ModelAndView mav = new ModelAndView("XmlView", 
            BindingResult.MODEL_KEY_PREFIX + "accsumm", as);
        return mav;
    }
}

Controller 2

package org.example;

@Controller
public class LocationCovgController {
    @RequestMapping(value = "/loccovginquiry")
    public ModelAndView locationCovgInquiryByPolicyNo(
        @RequestParam("method") String method) {
        ModelAndView mav = new ModelAndView("XmlView",
            BindingResult.MODEL_KEY_PREFIX + "loccovg", covgs);
        return mav;
    }
}