0

アプリエンジンで基本的なcrudメソッドを使用するのに苦労しています:

私のコードは次のようになります。

私のカスタマーコントローラー:

@Controller
public class CustomerController {

@RequestMapping(value = "/add", method = RequestMethod.GET)
public String getAddCustomerPage(ModelMap model) {
   return "command";
}

@RequestMapping(value = "/list", method = RequestMethod.POST)
public ModelAndView add(HttpServletRequest request, ModelMap model) {

    String email = request.getParameter("email");
    String password = request.getParameter("password");

    Customer c = new Customer();
    c.setEmail(email);
    c.setPassword(password);
    c.setDate(new Date());

    PersistenceManager pm = PMF.get().getPersistenceManager();
    try {
        pm.makePersistent(c);
    } finally {
        pm.close();
    }

    return new ModelAndView("redirect:command");

}

// get all customers
@RequestMapping(value = "/list", method = RequestMethod.GET)
public String listCustomer(ModelMap model) {

    PersistenceManager pm = PMF.get().getPersistenceManager();
    Query q = pm.newQuery(Customer.class);
    q.setOrdering("date desc");

    List<Customer> results = null;

    try {
        results = (List<Customer>) q.execute();

        if (results.isEmpty()) {
            model.addAttribute("customerList", null);
        } else {
            model.addAttribute("customerList", results);
        }

    } finally {
        q.closeAll();
        pm.close();
    }

    return "list";

}

私のmvc-dispatcher-servlet:

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
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">

<context:component-scan base-package="com.Trium.controller" />
<mvc:annotation-driven />

<bean
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="suffix">
        <value>.jsp</value>
    </property>
</bean>

そして、command.jsp で進めたいフォーム:

<form id="myForm" class="form-horizontal" action="add"
                                    method="post">
                                    <fieldset>
                                        <div class="control-group">

                                            <!-- Text input-->
                                            <label class="control-label" for="input01">Email:</label>
                                            <div class="controls">
                                                <input name="email" placeholder="email"
                                                    class="input-xlarge" type="text"
                                                    value="<%=request.getParameter("email")%>">
                                            </div>
                                        </div>
                                        <div class="control-group">
                                            <!-- Text input-->
                                            <label class="control-label" for="input01">Password:</label>
                                            <div class="controls">
                                                <input name="password" placeholder="password"
                                                    class="input-xlarge" type="text"
                                                    value="<%=request.getParameter("password")%>">
                                            </div>
                                        </div>

                                    </fieldset>
                                </form>

からフォームを進めたいときhttp://127.0.0.1:8888/command.jsp。私は得る：

http://127.0.0.1:8888/add エラー404

GAE では次のようになります。

警告: 「mvc-dispatcher」という名前の DispatcherServlet で、URI [/add] を持つ HTTP 要求のマッピングが見つかりません

アプリケーションで間違ってマッピングされているものを見つけるのを手伝ってください。

アップデート

<?xml version="1.0" encoding="UTF-8" standalone="no"?><web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.5" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee                http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

    <!-- Servlets -->
    <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>

    <!-- Default page to serve -->
    <welcome-file-list>
        <welcome-file>login.jsp</welcome-file>
    </welcome-file-list>

    <servlet>
        <servlet-name>SystemServiceServlet</servlet-name>
        <servlet-class>com.google.api.server.spi.SystemServiceServlet</servlet-class>
        <init-param>
            <param-name>services</param-name>
            <param-value/>
        </init-param>
    </servlet>

    <servlet-mapping>
        <servlet-name>SystemServiceServlet</servlet-name>
        <url-pattern>/_ah/spi/*</url-pattern>
    </servlet-mapping>

</web-app>

更新 - 2

    Mär 26, 2013 4:59:11 PM com.google.appengine.tools.development.ApiProxyLocalImpl log
INFO: javax.servlet.ServletContext log: Initializing Spring root WebApplicationContext
Mär 26, 2013 4:59:11 PM org.springframework.web.context.ContextLoader initWebApplicationContext
INFO: Root WebApplicationContext: initialization started
Mär 26, 2013 4:59:17 PM org.springframework.web.context.support.XmlWebApplicationContext prepareRefresh
INFO: Refreshing Root WebApplicationContext: startup date [Tue Mar 26 16:59:17 UTC 2013]; root of context hierarchy
Mär 26, 2013 4:59:19 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml]
Mär 26, 2013 4:59:21 PM org.springframework.context.annotation.ClassPathBeanDefinitionScanner registerDefaultFilters
INFO: JSR-330 'javax.inject.Named' annotation found and supported for component scanning
Mär 26, 2013 4:59:25 PM org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor <init>
INFO: JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
Mär 26, 2013 4:59:25 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@7f5fde46: defining beans [customerController,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,mvcContentNegotiationManager,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping#0,org.springframework.format.support.FormattingConversionServiceFactoryBean#0,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter#0,org.springframework.web.servlet.handler.MappedInterceptor#0,org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver#0,org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver#0,org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver#0,org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping,org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter,org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter,org.springframework.web.servlet.view.InternalResourceViewResolver#0,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor]; root of factory hierarchy
Mär 26, 2013 4:59:27 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/list],methods=[POST],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.Trium.controller.CustomerController.add(javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:27 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/delete/{key}],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.Trium.controller.CustomerController.delete(java.lang.String,javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:27 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/update],methods=[POST],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.Trium.controller.CustomerController.update(javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:27 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/add],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String com.Trium.controller.CustomerController.getAddCustomerPage(org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:27 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/update/{name}],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String com.Trium.controller.CustomerController.getUpdateCustomerPage(java.lang.String,javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:27 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/list],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String com.Trium.controller.CustomerController.listCustomer(org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:27 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/login],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.Trium.controller.CustomerController.login(javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:30 PM org.springframework.web.context.ContextLoader initWebApplicationContext
INFO: Root WebApplicationContext: initialization completed in 18804 ms
Mär 26, 2013 4:59:37 PM com.google.appengine.tools.development.ApiProxyLocalImpl log
INFO: javax.servlet.ServletContext log: Initializing Spring FrameworkServlet 'mvc-dispatcher'
Mär 26, 2013 4:59:37 PM org.springframework.web.servlet.DispatcherServlet initServletBean
INFO: FrameworkServlet 'mvc-dispatcher': initialization started
Mär 26, 2013 4:59:37 PM org.springframework.web.context.support.XmlWebApplicationContext prepareRefresh
INFO: Refreshing WebApplicationContext for namespace 'mvc-dispatcher-servlet': startup date [Tue Mar 26 16:59:37 UTC 2013]; parent: Root WebApplicationContext
Mär 26, 2013 4:59:37 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml]
Mär 26, 2013 4:59:37 PM org.springframework.context.annotation.ClassPathBeanDefinitionScanner registerDefaultFilters
INFO: JSR-330 'javax.inject.Named' annotation found and supported for component scanning
Mär 26, 2013 4:59:37 PM org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor <init>
INFO: JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
Mär 26, 2013 4:59:37 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@3c050a95: defining beans [customerController,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,mvcContentNegotiationManager,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping#0,org.springframework.format.support.FormattingConversionServiceFactoryBean#0,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter#0,org.springframework.web.servlet.handler.MappedInterceptor#0,org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver#0,org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver#0,org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver#0,org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping,org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter,org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter,org.springframework.web.servlet.view.InternalResourceViewResolver#0,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor]; parent: org.springframework.beans.factory.support.DefaultListableBeanFactory@7f5fde46
Mär 26, 2013 4:59:37 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/list],methods=[POST],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.Trium.controller.CustomerController.add(javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:37 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/delete/{key}],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.Trium.controller.CustomerController.delete(java.lang.String,javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:37 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/update],methods=[POST],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.Trium.controller.CustomerController.update(javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:37 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/add],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String com.Trium.controller.CustomerController.getAddCustomerPage(org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:37 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/update/{name}],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String com.Trium.controller.CustomerController.getUpdateCustomerPage(java.lang.String,javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:37 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/list],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String com.Trium.controller.CustomerController.listCustomer(org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:37 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
INFO: Mapped "{[/login],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.Trium.controller.CustomerController.login(javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap)
Mär 26, 2013 4:59:38 PM org.springframework.web.servlet.DispatcherServlet initServletBean
INFO: FrameworkServlet 'mvc-dispatcher': initialization completed in 657 ms
Mär 26, 2013 4:59:38 PM com.google.apphosting.utils.jetty.JettyLogger info
INFO: Started SelectChannelConnector@0.0.0.0:8888
Mär 26, 2013 4:59:38 PM com.google.appengine.tools.development.AbstractServer startup
INFO: Server default is running at http://localhost:8888/
Mär 26, 2013 4:59:38 PM com.google.appengine.tools.development.AbstractServer startup
INFO: The admin console is running at http://localhost:8888/_ah/admin
Mär 26, 2013 5:59:38 PM com.google.appengine.tools.development.DevAppServerImpl start
INFO: Dev App Server is now running
Mär 26, 2013 6:00:11 PM org.springframework.web.servlet.PageNotFound handleHttpRequestMethodNotSupported
WARNING: Request method 'POST' not supported

今、私は別の例外を受けています。しかし、私は以前から何も変わっていません;P

**WARNING: Request method 'POST' not supported**
4

3 に答える 3

2

あなたはこれを持っています：

@RequestMapping(value = "/add", method = RequestMethod.GET)
public String getAddCustomerPage(ModelMap model) {
   return "command";
}

リクエストを処理GETします。しかし、あなたの command.jsp フォームはPOSTto を行いますadd

<form id="myForm" class="form-horizontal" action="add" method="post">

したがって、そのアクションを処理するには別のハンドラー メソッドが必要です。あなたはすでに他のハンドラメソッドでそれを持っているようです

@RequestMapping(value = "/list", method = RequestMethod.POST)
public ModelAndView add(HttpServletRequest request, ModelMap model) {

    String email = request.getParameter("email");
    String password = request.getParameter("password");

    Customer c = new Customer();
    c.setEmail(email);
    c.setPassword(password);
    c.setDate(new Date());

    PersistenceManager pm = PMF.get().getPersistenceManager();
    try {
        pm.makePersistent(c);
    } finally {
        pm.close();
    }

    return new ModelAndView("redirect:command");

}

POSTフォームをに変更します/list

<form id="myForm" class="form-horizontal" action="list" method="post">

また、してはいけませんredirect:command。それは基本的に、localhost:8888/command存在しない新しいリクエストを作成します。redirect:add上記のハンドラ メソッドを呼び出して render を実行しますcommand.jsp。

于 2013-03-26T19:46:11.387 に答える
2

IDE で AppEngine アプリを起動するときに、サーバー ログも追加できますか? Spring は、起動時にすべての URL マッピングをログに記録します。

また、あなたのコンテキストでは、コンポーネントスキャン構成では、基本パッケージに大文字が含まれていますか?

com.Trium.controller

CustomerController のパッケージがわからないので、ここで推測しようとしています。

于 2013-03-26T16:41:50.643 に答える
2

localhost が実際に呼び出されたときに、ログイン ページが返されていないように感じます。ホームページをロードするには、次のコントローラー マッピングを追加する必要があります。

@RequestMapping(value = "/", method = RequestMethod.GET)
public String indexPage(ModelMap map) {
   return "login";
}

ログインページとして localhost:8888 にアクセスします。

URL を返す代わりに、ページの名前を返すようにしてください。

@RequestMapping(value = "/add", method = RequestMethod.GET)
public String getAddCustomerPage(ModelMap model) {
  return "command";
}
于 2013-03-26T19:05:16.460 に答える