登录
当前位置： 首页 > 知识库问答 >
问题：

Spring 4 MVC，警告：在名为[…]的DispatcherServlet中找不到URI为HTTP请求的映射&HTTP 404错误

毕宇
2023-03-14

我的项目突然中断，调度器servlet无法转发到我的视图，我开始最初

警告：在名为'mvc_dispatcher'的Disp atcherServlet中找不到URI为[/theDallasapp_poc/]的HTTP请求的映射&浏览器中出现404错误。

在更改设置后，我在日志中没有错误。警告，但我只得到一个404错误。

以下是我的项目设置：

Java：1.6

Web框架：

下面是我的pom.xml：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.hitachi</groupId>
    <artifactId>thedallasapp_poc_test</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>thedallasapp_poc_test</name>
    <url>http://maven.apache.org</url>


    <!-- properties -->
    <properties>
        <app.name>thedallassapp_poc</app.name>
        <tomcat.version>6.0.26</tomcat.version>
        <spring.version>4.0.0.RELEASE</spring.version>
        <hibernate.version>4.1.5.Final</hibernate.version>
        <spring.security.version>3.2.4.RELEASE</spring.security.version>
    </properties>

    <dependencies>

        <!-- jee -->
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>7.0</version>
        </dependency>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-web-api</artifactId>
            <version>7.0</version>
        </dependency>

        <!-- dependencies spring 4 -->

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
            <version>${spring.security.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>${spring.security.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-taglibs</artifactId>
            <version>${spring.security.version}</version>
        </dependency>


        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.1</version>
        </dependency>


        <!-- Spring 4 dependencies END -->

        <!-- jdbc & database START -->
        <dependency>
            <groupId>postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>9.1-901-1.jdbc4</version>
        </dependency>
        <!-- connection pool -->
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-dbcp</artifactId>
            <version>7.0.52</version>
        </dependency>

        <dependency>
            <groupId>org.hibernate.javax.persistence</groupId>
            <artifactId>hibernate-jpa-2.0-api</artifactId>
            <version>1.0.1.Final</version>
        </dependency>


        <!-- jdbc & database END -->

        <!-- hibernate START -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>${hibernate.version}</version>
        </dependency>

        <dependency>
            <groupId>org.javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>3.18.1-GA</version>
        </dependency>

        <!-- hibernate END -->

        <!-- junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <!-- jstl -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.1.1</version>

        </dependency>
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>

            <version>1.1.1</version>
        </dependency>
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>c</artifactId>
            <version>1.1.1</version>

            <type>tld</type>
        </dependency>
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>fmt</artifactId>
            <version>1.1.1</version>

            <type>tld</type>
        </dependency>

        <!-- webapp-runner -->
        <dependency>
            <groupId>com.github.jsimone</groupId>
            <artifactId>webapp-runner</artifactId>
            <version>7.0.40.0</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>
    <!-- build -->
    <build>
        <finalName>thedallasapp_poc</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
                <configuration>
                    <warFile>target/thedallasapp_poc.war</warFile>
                    <url>http://localhost:8080/manager/text</url>
                    <update>true</update>
                    <server>MyTomcat</server>
                    <path>/thedallasapp_poc</path>
                    <username>tomcat</username>
                    <password>password6678</password>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.0</version>
                <configuration>
                    <!-- <packagingExcludes>WEB-INF/lib/*.jar</packagingExcludes> -->
                    <packagingExcludes>WEB-INF/lib/tomcat*</packagingExcludes>
                    <source>1.6</source>
                    <target>1.6</target>
                    <executions>
                        <execution>
                            <phase>package</phase>
                            <goals>
                                <goal>copy</goal>
                            </goals>
                            <configuration>
                                <artifactItems>
                                    <artifactItem>
                                        <groupId>com.github.jsimone</groupId>
                                        <artifactId>webapp-runner</artifactId>
                                        <version>7.0.40.0</version>
                                        <destFileName>webapp-runner.jar</destFileName>
                                    </artifactItem>
                                </artifactItems>
                            </configuration>
                        </execution>
                    </executions>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

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" 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_3_0.xsd"
    version="3.0">

    <display-name>Toyota Relocation App</display-name>

    <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>

    <!-- load spring security -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/mvc_dispatcher-servlet.xml,/WEB-INF/security.xml</param-value>
    </context-param>

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

    <!-- spring security -->
    <filter>
        <filter-name>springSecurityFilterChain</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>springSecurityFilterChain</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>


</web-app>

Eclipse项目结构：

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


    <mvc:annotation-driven />
    <!-- scan at "com.hitachi.thedallasapp_poc" for spring annotated components 
        & register in spring container -->
    <context:annotation-config />

    <!-- <mvc:default-servlet-handler/>-->

    <context:component-scan base-package="com.hitachi.thedallasapp_poc.Category" />
    <context:component-scan base-package="com.hitachi.thedallasapp_poc.location" />
    <context:component-scan base-package="com.hitachi.thedallasapp_poc.messaging" />
    <context:component-scan base-package="com.hitachi.thedallasapp_poc.userprofile" />
    <context:component-scan base-package="com.hitachi.thedallasapp_poc.test" />

    <!-- the mvc resources tag that handles static content requests under resources 
        path -->
    <mvc:resources mapping="/resources/**" location="/resources/" />

    <!-- ViewResolver -->

    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/WEB-INF/pages/</value>
        </property>
        <property name="suffix">
            <value>.jsp</value>
        </property>
    </bean>

    <!-- datasource & hibernate configs -->

    <bean id="myProperties"
        class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="locations">
            <list>
                <value>classpath*:db-dev.properties</value>
            </list>
        </property>
    </bean>

    <!-- local datasource -->

    <bean id="postgresqlDataSource" destroy-method="close"
        class="org.apache.tomcat.dbcp.dbcp.BasicDataSource">
        <property name="driverClassName" value="org.postgresql.Driver" />
        <property name="url"
            value="jdbc:postgresql://localhost:5432/postgres?createDatabaseIfNotExist=true" />
        <property name="username" value="postgres" />
        <property name="password" value="heroku6678" />
    </bean>

    <!-- hibernate sessionFactoty via properties -->
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">

        <property name="dataSource" ref="postgresqlDataSource" />

            <!-- annotated classes -->
        <property name="annotatedClasses">
            <list>
                <value>com.hitachi.thedallasapp_poc.userprofile.UserProfile</value>
                <value>com.hitachi.thedallasapp_poc.userprofile.UserConnection</value>
                <value>com.hitachi.thedallasapp_poc.Category.Categories</value>
                <value>com.hitachi.thedallasapp_poc.location.Location</value>
                <value>com.hitachi.thedallasapp_poc.location.FavoriteLocation</value>
                <value>com.hitachi.thedallasapp_poc.messaging.Messages</value>
            </list>
        </property>
         <property name="hibernateProperties">
            <props>
                <prop key="hibernate.hbm2ddl.auto">create</prop>
                <prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.temp.use_jdbc_metadata_defaults">false</prop> 
            </props>
        </property>

    </bean>

    <!-- transaction management -->
    <bean id="txManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
        <property name="dataSource" ref="postgresqlDataSource" />
    </bean>


    <bean id="persistenceExceptionTranslationPostProcessor"
        class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />

</beans>

<beans:beans xmlns="http://www.springframework.org/schema/security"
    xmlns:beans="http://www.springframework.org/schema/beans" 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/security
           http://www.springframework.org/schema/security/spring-security-3.2.xsd">

    <!-- spring security should ignore "/" & "/resources/**" paths -->
    <http pattern="/" security="none" auto-config="true"
        use-expressions="true" />
    <http pattern="/login" security="none" auto-config="true"
        use-expressions="true" />
    <http pattern="/resources/**" security="none" auto-config="true"
        use-expressions="true" />

    <!-- custom bean used to override spring security page redirection after 
        successful authentication -->
    <beans:bean id="myAuthSuccessHandler"
        class="com.hitachi.thedallasapp_poc.security.MyAuthSuccessHandler" />


    <!-- spring security configuration intercept-url & login form -->
    <http auto-config="true" use-expressions="true">
        <intercept-url pattern="/auth/**" access="hasRole('ROLE_USER')" />

        <form-login login-page="/login" authentication-failure-url="/login?error"
            username-parameter="emailInputField" password-parameter="pinInputField"
            default-target-url="/auth/welcome" always-use-default-target="true"
            authentication-success-handler-ref="myAuthSuccessHandler" />
        <!-- keep logged in session for 3 days or 259200 secs -->
        <remember-me key="uniqueAndSecret1984"
            token-validity-seconds="60" />

        <logout logout-url="/logout" logout-success-url="/login?logout=1"
            delete-cookies="JSESSIONID" invalidate-session="true" />

    </http>

    <!-- user accounts -->
    <authentication-manager>
        <authentication-provider>
            <user-service>
                <user name="naim@test.com" password="12345" authorities="ROLE_USER" />
            </user-service>
        </authentication-provider>
    </authentication-manager>

</beans:beans>

package com.hitachi.thedallasapp_poc;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.security.authentication.RememberMeAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.context.ContextLoaderListener;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class HomeControler {

    public HomeControler() {
        super();
        // TODO Auto-generated constructor stub
    }

    /* serves the login landing/home page view */
    @RequestMapping(value="/")
    public ModelAndView serveLanding(HttpSession session) {



        ModelAndView model = new ModelAndView();
        model.setViewName("login");
        Authentication auth = SecurityContextHolder.getContext().getAuthentication();
        //check if isRememberMeAuthenticated cookie is true from previous login 
        System.out.println("Class HomeControler, String serveLanding(), isRememberMeAuthenticated():"+isRememberMeAuthenticated());
        if (isRememberMeAuthenticated()!=false && auth.isAuthenticated()!=false)    
        {
            session.setAttribute("isRememberMeAuthenticated", true);

        }

        return model;
    }

    /* process login request from login view */
    @RequestMapping(value = "/login**")
    public ModelAndView processLogin(String error,@RequestParam(value = "logout", required = false) String logout)
    {
        System.out.println("Class HomeControler,  processLogin()");
        ModelAndView model = new ModelAndView();

         //non test code

        if (error != null) {
            System.out.println("Class HomeControler,  processLogin(), error ");
            model.addObject("error", "Invalid username and password!");

        }
            if (logout != null) {
                System.out.println("Class HomeControler,  processLogin(), logout ");
                model.addObject("msg", "You've been logged out successfully.");

            }

            model.setViewName("login");


            return model;

    }


    /* serves the login landing/home page view */
    @RequestMapping(value="/auth/welcome**")
    public ModelAndView welcome(HttpSession session) {

        System.out.println("Class HomeControler, String welcome()");

        ModelAndView model = new ModelAndView();

        Authentication auth = SecurityContextHolder.getContext().getAuthentication();
        //after authentication check isRememberMeAuthenticated cookie is true
        System.out.println("Class HomeControler, String welcome(), isRememberMeAuthenticated():"+isRememberMeAuthenticated());

               if (isRememberMeAuthenticated()!=false && auth.isAuthenticated()!=false) 
                {

                    session.setAttribute("isRememberMeAuthenticated", true);

                }
        //get logged in username

        String name = auth.getName();
        model.addObject("loggedInUserName", name);
        model.setViewName("/auth/appView");

        return model;
    }


    /* serves the login landing/home page view */
    @RequestMapping(value="/logout")
    public  ModelAndView logoutTheUserAndInvalidateSession(HttpSession session, HttpServletRequest request, HttpServletResponse response) {

        ModelAndView model = new ModelAndView();
        //logout via spring security 
         Authentication auth = SecurityContextHolder.getContext().getAuthentication(); 
            SecurityContextLogoutHandler ctxLogOut = new SecurityContextLogoutHandler();
                ctxLogOut.logout(request, response, auth); 
            //invalidate session just to make sure 
                session = request.getSession(false);
                if (session != null) {
                    session.invalidate();
                }

                model.addObject("logout","1");
                model.setViewName("login");

    return model;
    }


    /**
     * Check if user is login by remember me cookie, refer
     * org.springframework.security.authentication.AuthenticationTrustResolverImpl
     */
    private boolean isRememberMeAuthenticated() {

        Authentication authentication = 
                    SecurityContextHolder.getContext().getAuthentication();
        if (authentication == null) {
            return false;
        }

        return RememberMeAuthenticationToken.class.isAssignableFrom(authentication.getClass());
    }

    }//end class HomeControler

登录视图：

<!DOCTYPE html>
<html>
<head>
<title>Toyota Relocation App</title>
<meta name="viewport"
    content="width=device-width, initial-scale=1, user-scalable=no">
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="sec"
    uri="http://www.springframework.org/security/tags"%>
<!-- jquery styles & scripts -->
<script
    src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script>
    $(document).bind("mobileinit", function() {
        $.mobile.ajaxEnabled = false;
    });
</script>
<script>
    $(document).ready(function() {

        // if error has data then make div visible
        <c:if test="${not empty error}">
        if ($('.error_div').length > 0) {
            console.log("found .error_div");
            $('.error_div').show();
        }
        </c:if>
        // if msg has data then make div visible
        <c:if test="${not empty msg}">
        if ($('.msg_div').length > 0) {
            console.log("found .msg_div");
            $('.msg_div').show();
        }
        </c:if>
    });
</script>
<link rel="stylesheet"
    href="//ajax.googleapis.com/ajax/libs/jquerymobile/1.4.2/jquery.mobile.min.css" />
<script
    src="//ajax.googleapis.com/ajax/libs/jquerymobile/1.4.2/jquery.mobile.min.js"></script>
<!--  http://fortawesome.com -->
<link
    href="http://maxcdn.bootstrapcdn.com/font-awesome/4.1.0/css/font-awesome.min.css"
    rel="stylesheet">
<!-- custom stylesd & scripts -->
<link rel="stylesheet" href="resources/css/home.css" />
<script type="text/javascript" src="resources/js/home.js"></script>
</head>
<body>
    <!--  
<sec:authorize access="hasRole('ROLE_USER')">
<script>
console.log("hasRole('ROLE_USER')");
$.post( "./auth/app" );
</script>
</sec:authorize>
-->
    <div class="wrapper">

        <!-- 
        <div data-role="header" data-position="fixed">
            <div class="myheader">HEADER</div>
        </div>
        -->

        <div data-role="content">

            <div class="mycontent">
                <div id="logo_div">
                    <img src="resources/images/01_toyota_logo_small.png">
                </div>
                <div class="login_form_wrapper">
                    <!--  login error & msg jstl -->
                    <div class="error_div" style="display: none;">
                        <p class="error_text">${error}</p>
                    </div>
                    <div class="msg_div" style="display: none;">
                        <p class="msg_text">${msg}</p>
                    </div>
                    <!-- spring security form -->
                    <form name='loginForm'
                        action="<c:url value='/j_spring_security_check' />" method='POST'>

                        <ul class="mylistview" data-role="listview">
                            <li>
                                <div>
                                    <img id="email_input_icon"
                                        src="resources/images/01_login_email_icon_small.png">
                                </div>
                                <div id="email_input">
                                    <input name="emailInputField" " id="email_input_field"
                                        type="email" data-role="none" />
                                </div>
                            </li>
                            <li>
                                <div>
                                    <img id="pin_input_icon"
                                        src="resources/images/01_login_password_icon_small.png">
                                </div>
                                <div id="pin_input">
                                    <input name="pinInputField" id="pin_input_field"
                                        type="password" data-role="none" />
                                </div>
                            </li>
                            <li>

                                <div id="login_button">
                                    <button id="login" class="button" type="submit">LOGIN</button>
                                </div>
                                <div id="remember">
                                    <label class="checkboxLabel" data-role="none"
                                        style="float: left">
                                        <p>Remember Me</p>
                                    </label> <input data-role="none" type='checkbox'
                                        name='_spring_security_remember_me'
                                        id="_spring_security_remember_me" value="true" />
                                </div>
                            </li>
                        </ul>

                    </form>
                </div>

                <div class="or_divider">
                    <img src="resources/images/01_login_or_option_small.png">
                </div>

                <div class="options_menu">

                    <ul class="mylistview2" data-role="listview">
                        <li>
                            <div id="login_account_no_words_icon">
                                <img src="resources/images/01_login_account_no_words_small.png">
                            </div>
                            <div id="login_guest_no_words_icon">
                                <img src="resources/images/01_login_guest_no_words_small.png">
                            </div>
                        </li>
                        <li>
                            <div id="create_an_account">
                                <P>Create An Account</P>
                            </div>
                            <div id="continue_as_guest">
                                <P>Continue As Guest</P>
                            </div>
                        </li>

                    </ul>
                </div>
            </div>

        </div>
        <!-- 
        <div data-role="footer">
            <div class="myfooter">FOOTER</div>
        </div>
        -->
    </div>
</body>

</html>

通过Eclipse进行部署：

我通过Eclipse部署到Tomcat的方法是：右键单击我的项目，选择Run As，选择Tomcatv7.0，选择Finish...

结果：

最后，我将web.xml Dispatcher servlet-name映射更改为“/thedallasapp_poc*”，而不是“/”：

web.xml片段：

<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>/thedallasapp_poc*</url-pattern>
    </servlet-mapping>

因此，我还将HomeController从@RequestMapping(value=“/”）更改为@RequestMapping(value=“/TheDallasApp_Poc”）

public HomeControler() {
    super();
    // TODO Auto-generated constructor stub
}

/* serves the login landing/home page view */
@RequestMapping(value="/thedallasapp_poc")
public ModelAndView serveLanding(HttpSession session) {



    ModelAndView model = new ModelAndView();
    model.setViewName("login");
    Authentication auth = SecurityContextHolder.getContext().getAuthentication();
    //check if isRememberMeAuthenticated cookie is true from previous login 
    System.out.println("Class HomeControler, String serveLanding(), isRememberMeAuthenticated():"+isRememberMeAuthenticated());
    if (isRememberMeAuthenticated()!=false && auth.isAuthenticated()!=false)    
    {
        session.setAttribute("isRememberMeAuthenticated", true);

    }

    return model;
}

共有1个答案

谷出野
2023-03-14 
<context:component-scan base-package="com.hitachi.thedallasapp_poc.Category"/>

上面一行将扫描com.hitachi.theDallasapp_poc.category包中可用的所有组件

并且它不会扫描com.hitachi.theDallasapp_poc包中的组件。

类似地，我可以在com.hitachi.thedallasapp_poc主包中看到所有组件扫描引用子包

<context:component-scan base-package="com.hitachi.thedallasapp_poc"/>
 类似资料：

相关问答

在DispatcherServlet中找不到URI为j_spring_security_check的HTTP请求的映射找不到URI为的HTTP请求的映射。。。。在名为[副本]的DispatcherServlet中在名为“appServlet”的DispatcherServlet中找不到URI为[/myappname/]的HTTP请求的映射在名为[重复]的DispatcherServlet中找不到URI为…的HTTP请求的映射在名为“SpringMVC”的DispatcherServlet中，未找到URI为[/SpringMVC/]的HTTP请求映射

相关文章

尝试设置spring servlet时，获取“ WARN org.springframework.web.servlet.PageNotFound- 找不到URI的HTTP请求的映射……”使用Spring Boot和View注解配置ViewResolver并没有为带有URI错误的HTTP请求找到映射Java中的“编码不可映射字符”警告PyInstaller警告：找不到lib避免在URI中使用浮点数的Spring MVC请求映射中的文件扩展名检测

相关阅读

7.1.4 Android HTTP请求方式:HttpClient7.1.3 Android HTTP请求方式:HttpURLConnectionJava16 ValueBased类警告7.1.2 Android Http请求头与响应头的学习HttpClient HTTP DELETE请求方法示例

相关工具

新浪微博请求简单的广告栏ws-httpHTTP Ripperhttp-tools

相关文档

蜻蜓映射帮助文档常见 HTTP / FTP / WebSocket 错误代码大全如何成为优秀的程序员HTTP 中文开发手册RFC 7540 - HTTP/2 中文翻译版
快捷导航： 新手教程 算法原理 架构设计 Java进阶 数据库进阶 大厂专栏 面试经验 编程笔记 编程问答 所有专题 文档资料 工具软件 电子书籍 小牛导航
在线工具： 房贷计算器 个税计算器 Linux命令查询 Json格式化 正则表达式 颜色转换 AES加解密 SHA1加密 MD5加密 毒鸡汤 字数统计 随机密码生成 进制转换 Base64编解码 励志句子
Copyright © 2019-2024 小牛知识库@xnip.cn. All Rights Reserved.