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好吧,我现在一直在纠结(至少看起来是这样!)试图找出我做错了什么:我有一个 Java 项目,我想允许登录的用户(通过正常的启用 Spring-Security JDBC 的存储库)向我的应用程序授予对其 Twitter 帐户的访问权限。我已经通过 Twitter 等注册了一个应用程序,并拥有 secret 和访问 key 以及测试所需的所有其他内容,但是,尽管阅读了所有文档并尝试了所有配置,即使我的 spring 配置创建了 ConnectController
,每当我点击 /connect/twitter
时,我都会收到 404(未找到),尽管在 Tomcat 中出现上下文期间绝对没有生成错误,并且其他一切正常(即我所有的 bean 都被实例化并且所有的 View / Controller 工作等)。
据我了解——尽管我确实在使用 Spring Social docco,但更是如此,因为显示的一些示例仅适用于特定版本! -- 简单地实例化这个 Controller 应该会处理剩下的事情 -- 但也许我错了???
这是我的配置的样子——是的,它有点到处都是:
/WEB-INF/web.xml
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>legototies</display-name>
<servlet>
<servlet-name>legototies</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>legototies</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- allow robots.txt -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.txt</url-pattern>
</servlet-mapping>
<!-- allow favicon.ico -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.ico</url-pattern>
</servlet-mapping>
<!-- allow everything under /static/ -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>/static/*</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/applicationContext.xml,
/WEB-INF/spring-security.xml
</param-value>
</context-param>
<!-- 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>
/WEB-INF/legototies-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<context:component-scan base-package="com.lt" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:order="1">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="tilesviewResolver" class="org.springframework.web.servlet.view.tiles2.TilesViewResolver" p:order="0"/>
<bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles2.TilesConfigurer">
<property name="definitions">
<list>
<value>/WEB-INF/tiles.xml</value>
</list>
</property>
</bean>
</beans>
/WEB-INF/applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<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:task="http://www.springframework.org/schema/task"
xmlns:twitter="http://www.springframework.org/schema/social/twitter"
xmlns:social="http://www.springframework.org/schema/social"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.2.xsd
http://www.springframework.org/schema/social/twitter http://www.springframework.org/schema/social/spring-social-twitter.xsd
http://www.springframework.org/schema/social http://www.springframework.org/schema/social/spring-social-1.1.xsd">
<!-- **** BEGIN: Config files **** -->
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath*:config/*.properties</value>
</list>
</property>
<property name="ignoreResourceNotFound" value="true" />
</bean>
<!-- **** END: Config files **** -->
<context:component-scan base-package="com.lt" />
<!-- **** BEGIN: Database **** -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${database.driverClassName}" />
<property name="url" value="${database.url}" />
<property name="username" value="${database.username}" />
<property name="password" value="${database.password}" />
<property name="initialSize" value="${database.initial.size}" />
<property name="maxActive" value="${database.max.active}" />
</bean>
<bean id="localJdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<constructor-arg>
<ref bean="dataSource" />
</constructor-arg>
</bean>
<bean id="txManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
</bean>
<!-- **** END: Database **** -->
<bean id="messageAssembler" class="com.lt.message.MessageAssembler" />
<!-- **** BEGIN: Scheduler **** -->
<!-- Tasks -->
<bean id="createTweetsScheduler" class="com.lt.scheduller.CreateTweetsScheduler">
<constructor-arg index="0" ref="sessionFactory" />
<constructor-arg index="1" ref="execSendTweet" />
<constructor-arg index="2" ref="messageAssembler" />
</bean>
<bean id="bookScrapingNeededTask" class="com.lt.scheduller.BooksScrapingNeededCheckTask">
<constructor-arg index="0" ref="sessionFactory" />
<constructor-arg index="1" ref="execPageScraping" />
<constructor-arg index="2" value="${shefari.htmlpath}" />
</bean>
<!-- Schedulers -->
<task:executor id="execPageScraping" pool-size="${page.scrape.threadpool.size}" />
<task:executor id="execSendTweet" pool-size="${broadcastTweets.threadpool.size}" />
<task:scheduler id="mainScheduler" pool-size="${mainScheduler.size}" />
<task:scheduled-tasks scheduler="mainScheduler">
<task:scheduled ref="createTweetsScheduler" method="run"
fixed-rate="${selectTweets.period.ms}" initial-delay="${selectTweets.initial.delay.ms}" />
<task:scheduled ref="bookScrapingNeededTask" method="run"
fixed-rate="${page.scrape.check.period.ms}" initial-delay="${page.scrape.check.initial.delay.ms}" />
</task:scheduled-tasks>
<!-- **** END: Scheduler **** -->
<bean id="textEncryptor" class="org.springframework.security.crypto.encrypt.Encryptors"
factory-method="noOpText" />
<bean id="passwordEncoder"
class="org.springframework.security.crypto.password.NoOpPasswordEncoder"
factory-method="getInstance" />
<!-- **** BEGIN: twitter/social **** -->
<social:jdbc-connection-repository />
<twitter:config app-id="${twitter.app.consumer.key}"
app-secret="${twitter.app.consumer.secret}" />
<bean id="userIdSource"
class="org.springframework.social.security.AuthenticationNameUserIdSource" />
<bean id="connectController"
class="org.springframework.social.connect.web.ConnectController">
<property name="connectInterceptors">
<list>
<bean class="com.lt.utils.TweetAfterConnectInterceptor">
<constructor-arg index="0" value="${twitter.app.connect.msg}" />
</bean>
</list>
</property>
<property name="applicationUrl" value="http://localhost:8080/" />
</bean>
<!-- **** END: twitter/social **** -->
</beans>
/WEB-INF/spring-security.xml
<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-3.2.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd">
<global-method-security secured-annotations="enabled" />
<http auto-config="true" use-expressions="true">
<intercept-url pattern="/static/**" access="permitAll" />
<intercept-url pattern="/home" access="permitAll" />
<intercept-url pattern="/**" access="hasRole('ROLE_USER')" />
</http>
<authentication-manager>
<authentication-provider>
<jdbc-user-service data-source-ref="dataSource"
users-by-username-query="select username,password, enabled from users where username=?"
authorities-by-username-query="select u.username, ur.authority from users u, user_roles ur
where u.id = ur.user_id and u.username =? "
/>
</authentication-provider>
</authentication-manager>
</beans:beans>
我不在此处包含 /WEB-INF/tiles.xml,因为我认为它不相关——它只是定义了一些基本模板。
最后,这是项目 pom.xml——请注意,我使用的是最新的 spring social milestone (M4):
<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>liviutudor</groupId>
<artifactId>legototies</artifactId>
<packaging>war</packaging>
<version>1.0.0-SNAPSHOT</version>
<name>legototies</name>
<inceptionYear>2013</inceptionYear>
<description>This is "lego toties"</description>
<url>http://legototies.com</url>
<developers>
<developer>
<name>Liviu Tudor</name>
<id>liviut</id>
<email>me at liviutudor.com</email>
</developer>
</developers>
<repositories>
<repository>
<snapshots>
<enabled>false</enabled>
</snapshots>
<id>central</id>
<name>Maven Repository Switchboard</name>
<url>http://repo1.maven.org/maven2</url>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>http://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>http://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<properties>
<project.build.jdkVersion>1.6</project.build.jdkVersion>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<hibernate.version>3.6.10.Final</hibernate.version>
<jsoup.version>1.7.2</jsoup.version>
<junit.version>4.10</junit.version>
<spring.version>3.2.3.RELEASE</spring.version>
<spring.social.version>1.1.0.M4</spring.social.version>
<spring.security.version>3.1.4.RELEASE</spring.security.version>
<tiles.version>2.2.2</tiles.version>
</properties>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- Spring security -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-core</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-config</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> <!-- needed by spring social twitter -->
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-crypto</artifactId>
<version>${spring.security.version}</version>
</dependency>
<!-- Spring Social -->
<dependency>
<groupId>org.springframework.social</groupId>
<artifactId>spring-social-twitter</artifactId>
<version>${spring.social.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.social</groupId>
<artifactId>spring-social-web</artifactId>
<version>${spring.social.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.social</groupId>
<artifactId>spring-social-security</artifactId>
<version>${spring.social.version}</version>
</dependency>
<!-- Hibernate -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.0.Final</version>
</dependency>
<!-- this is needed for hibernate -->
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.12.0.GA</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.0.5</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>org.jsoup</groupId>
<artifactId>jsoup</artifactId>
<version>${jsoup.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tiles</groupId>
<artifactId>tiles-extras</artifactId>
<version>${tiles.version}</version>
</dependency>
<!-- Test dependencies -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>legototies</finalName>
<defaultGoal>install</defaultGoal>
<resources>
<resource>
<filtering>false</filtering>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<filtering>false</filtering>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${project.build.jdkVersion}</source>
<target>${project.build.jdkVersion}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<configuration>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
</plugins>
</build>
</project>
正如我所说,一切正常,但是,考虑到上述情况,即使定义了 ConnectController
,/connect/twitter
(或任何其他 /connect/...
URL) 返回 404 未找到。我错过了什么?
更新:关于连接 Controller 的记录片段
5148 [main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/connect/{providerId}],methods=[POST],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.view.RedirectView org.springframework.social.connect.web.ConnectController.connect(java.lang.String,org.springframework.web.context.request.NativeWebRequest)
5148 [main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/connect/{providerId}],methods=[DELETE],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.view.RedirectView org.springframework.social.connect.web.ConnectController.removeConnections(java.lang.String,org.springframework.web.context.request.NativeWebRequest)
5148 [main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/connect/{providerId}/{providerUserId}],methods=[DELETE],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.view.RedirectView org.springframework.social.connect.web.ConnectController.removeConnection(java.lang.String,java.lang.String,org.springframework.web.context.request.NativeWebRequest)
5149 [main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/connect/{providerId}],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String org.springframework.social.connect.web.ConnectController.connectionStatus(java.lang.String,org.springframework.web.context.request.NativeWebRequest,org.springframework.ui.Model)
5150 [main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/connect],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String org.springframework.social.connect.web.ConnectController.connectionStatus(org.springframework.web.context.request.NativeWebRequest,org.springframework.ui.Model)
5150 [main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/connect/{providerId}],methods=[GET],params=[oauth_token],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.view.RedirectView org.springframework.social.connect.web.ConnectController.oauth1Callback(java.lang.String,org.springframework.web.context.request.NativeWebRequest)
5151 [main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/connect/{providerId}],methods=[GET],params=[code],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.view.RedirectView org.springframework.social.connect.web.ConnectController.oauth2Callback(java.lang.String,org.springframework.web.context.request.NativeWebRequest)
5152 [main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/connect/{providerId}],methods=[GET],params=[error],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.view.RedirectView org.springframework.social.connect.web.ConnectController.oauth2ErrorCallback(java.lang.String,java.lang.String,java.lang.String,java.lang.String,org.springframework.web.context.request.NativeWebRequest)
最佳答案
你的 ConnectController
在错误的配置文件中。你应该把它移到 legototies-servlet.xml
.
二手HandlerMapping
实现只检测 (@)Controller
beans 在本地上下文中(由 DispatcherServlet
加载的)不在父上下文中(由 ContextLoaderListener
加载的)。所以你的 ConnectController
已配置但未执行任何操作,因为未检测到它。
您的配置还有另一个问题,您正在加载所有 beans 两次。这是由于您配置组件扫描的方式所致。在两个配置文件中都有一个 <context:component-scan base-package="com.lt" />
它基本上复制了所有的 bean 。通常,您应该配置 DispatcherServlet
仅加载 @Controllers
和 ContextLoaderListener
加载所有内容,但 @Controllers
.
<context:component-scan base-package="com.lt">
<context:exclude-filter type="annotation" value="org.springframework.stereotype.Controller" />
</context:component-scan>
对于 DispatcherServlet
<context:component-scan base-package="com.lt" use-default-filters="false">
<context:include-filter type="annotation" value="org.springframework.stereotype.Controller" />
</context:component-scan>
乍一看,您的数据库配置也有错误。您正在使用 hibernate 但配置了 DataSourceTransactionManager
而你应该配置一个 HibernateTransactionManager
.后者完全有能力控制普通的 JDBC 事务。
关于java - Spring-Social/Twitter——ConnectController 不响应/连接?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19554467/
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我刚开始学习 spring cloud security,我有一个基本问题。它与 Spring Security 有何不同?我们是否需要在 spring boot 上构建我们的应用程序才能使用 spr
有很多人建议我使用 Spring Boot 而不是 Spring 来开发 REST Web 服务。我想知道这两者到底有什么区别? 最佳答案 总之 Spring Boot 减少了编写大量配置和样板代码的
您能向我解释一下如何使用 Spring 正确构建 Web 应用程序吗?我知道 Spring 框架的最新版本是 4.0.0.RELEASE,但是 Spring Security 的最新版本是 3.2.0
我如何才能知道作为 Spring Boot 应用程序的一部分加载的所有 bean 的名称?我想在 main 方法中有一些代码来打印服务器启动后加载的 bean 的详细信息。 最佳答案 如spring-
我有一个使用 Spring 3.1 构建的 RESTful API,也使用 Spring Security。我有一个 Web 应用程序,也是一个 Spring 3.1 MVC 应用程序。我计划让移动客
升级到 Spring 5 后,我在 Spring Rabbit 和 Spring AMQP 中遇到错误。 两者现在都设置为 1.5.6.RELEASE 有谁知道哪些版本应该与 Spring 5 兼容?
我现在已经使用 Spring Framework 3.0.5 和 Spring Security 3.0.5 多次了。我知道Spring框架使用DI和AOP。我还知道 Spring Security
我收到错误 Unable to Location NamespaceHandler when using context:annotation-config running (java -jar) 由
在 Spring 应用程序中嵌入唯一版本号的策略是什么? 我有一个使用 Spring Boot 和 Spring Web 的应用程序。 它已经足够成熟,我想对其进行版本控制并在运行时看到它显示在屏幕上
我正在使用 spring data jpa 进行持久化。如果存在多个具有相同名称的实体,是否有一种方法可以将一个实体标记为默认值。类似@Primary注解的东西用来解决多个bean的依赖问题 @Ent
我阅读了 Spring 框架的 DAOSupport 类。但是我无法理解这些 DAOSuport 类的优点。在 DAOSupport 类中,我们调用 getXXXTemplate() 方法来获取特定的
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