控制器方法沒有在春天調用mvc

Question

我正在修改我在特定站點上找到的項目。 問題是當我在服務器上運行項目時，顯示包含美國地圖的home.jsp頁面。我使地圖可點擊。當我點擊地圖狀態時，生成的新URL爲localhost:7001/SpringMVCAngularJS/home.jsp?statechoice=ME。按照Spring mvc邏輯，應該調用getUSCity（）方法。但它沒有被調用。即使我只碰到localhost:7001/SpringMVCAngularJS/home.jsp，它也沒有被調用。 而如果我點擊localhost:7001/SpringMVCAngularJS/springAngularJS.web，則會調用特定的方法。如果我缺少任何映射等，你能告訴我嗎？

@Controller 
public class SpringMVCController { 

    @Autowired 
    Top10LanesService lanesService; 

    @RequestMapping(value = "/angularJS.web", method = RequestMethod.GET) 
    public String printWelcome(ModelMap model) { 
     return "Home"; 
    } 

    @RequestMapping(value = "/springAngularJS.web", method = RequestMethod.GET, produces = { "application/xml", 
      "application/json" }) 
    public @ResponseBody List<LmWebShipment> getTop10Lanes() { 

     List<LmWebShipment> al = new ArrayList<LmWebShipment>(); 

     // Top10LanesDAOImpl top10LanesDaoImpl = new Top10LanesDAOImpl(); 
     al = lanesService.getTop10Lanes(); 
     return al; 
    } 

    // Called on Click of US state 

    @RequestMapping(value = "/home.web", method = RequestMethod.GET, produces = { "application/xml", 
      "application/json" }) 
    @ResponseBody 
    public void getUSCity(@PathVariable("statechoice") String statechoice) { 

     System.out.println("In getUSCity" + statechoice); 

    } 

} 

我在我的home.jsp文件中有這樣的東西。

<area shape='polygon' coords='489,52,502,31,513,32,518,54,490,71' href='home.jsp?statechoice=ME' target="right" alt='Maine'> 

分配器一servlet.xml中

<context:property-placeholder location="classpath:database/database.properties"/> 
    <context:component-scan base-package="com.javahonk.controller" /> 
    <mvc:annotation-driven /> 

    <bean 
     class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
     <property name="prefix"> 
      <value>/WEB-INF/Views/</value> 
     </property> 
     <property name="suffix"> 
      <value>.jsp</value> 
     </property> 
    </bean> 
    <!-- bind messages.properties --> 
    <bean class="org.springframework.context.support.ResourceBundleMessageSource" 
     id="messageSource"> 
     <property name="basename" value="messages/messages" /> 
    </bean> 

<bean id="dataSource" 
     class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
     <property name="driverClassName" value="${jdbc.driver}"></property> 
     <property name="url" value="${jdbc.url}"></property> 
     <property name="username" value="${jdbc.username}"></property> 
     <property name="password" value="${jdbc.password}"></property> 
    </bean> 

    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> 
     <property name="dataSource" ref="dataSource"></property> 
    </bean> 
    <bean id="top10LanesDAO" class="com.javahonk.DAO.Top10LanesDAOImpl" /> 
    <bean id="top10LanesService" class="com.javahonk.services.Top10LanesServiceImpl" /> 

</beans> 

的web.xml

<?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" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
    version="2.5"> 
    <display-name>Archetype Created Web Application</display-name> 
    <servlet> 
     <servlet-name>dispatcher</servlet-name> 
     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
     <load-on-startup>1</load-on-startup> 
    </servlet> 
    <servlet-mapping> 
     <servlet-name>dispatcher</servlet-name> 
     <url-pattern>*.web</url-pattern> 
    </servlet-mapping> 
    <context-param> 
     <param-name>contextConfigLocation</param-name> 
     <param-value>/WEB-INF/dispatcher-servlet.xml</param-value> 
    </context-param> 
    <listener> 
     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 
    </listener> 
    <welcome-file-list> 
     <welcome-file>angularJS.web</welcome-file> 
    </welcome-file-list> 
    <display-name>SpringAngularJS</display-name> 

    <welcome-file-list> 
     <welcome-file>index.html</welcome-file> 
     <welcome-file>index.htm</welcome-file> 
     <welcome-file>index.jsp</welcome-file> 
     <welcome-file>default.html</welcome-file> 
     <welcome-file>default.htm</welcome-file> 
     <welcome-file>default.jsp</welcome-file> 
    </welcome-file-list> 
</web-app> 

Answer 1

根據彈簧路徑變量概念應該作爲follows.you丟失在路徑變量網址

@RequestMapping(value = "/home.web/{statechoice}", method = RequestMethod.GET, produces = { "application/xml", 
      "application/json" }) 
    @ResponseBody 
    public void getUSCity(@PathVariable("statechoice") String statechoice) { 

     System.out.println("In getUSCity" + statechoice); 

    } 

根據spring語法，您應該訪問的url是localhost：7001/SpringMVCAngularJS/home.web/ME。其中，ME是您在狀態選擇中獲得的值。