java - 一遍又一遍地在 Intelij 中创建 Spring 项目的问题

Question

我正在学习Spring，创建一个可以工作的项目让我疯狂了几天，我花了一整天的时间来解决一些问题，然后在创建下一个项目时，我重复前面的过程，但出现了新的问题。我使用 InteliJ，我将逐步编写如何创建项目以及错误是什么。我希望有人能帮助我，因为我真的很沮丧。

我选择新建项目Java Enterpise，项目模板是Web application，构建工具Maven。对于库和框架是自动选择的Servlet，我在那里没有改变任何东西。就是这样，我创建了项目。现在，当我右键单击我选择的项目时Add framework support，我添加：Spring, SpringMVC, Hibernate. InteliJ 会自动下载它。如果有人有时间在私信中逐步向我解释如何正确设置，我将不胜感激。

Spring version 5.2.3 RELEASE Spring MC 5.2.3 RELEASE Hibernate 5.4.11 所有 Jar 文件都已添加到 lib 文件夹中

然后我创建了HomeController:

@Controller
@RequestMapping("/home")
public class HomeController {

@RequestMapping("/showHome")
public String showHome(){

    return "home";
}
}

Componet scanning, mvc view, etc.：

    <?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:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/tx 
        http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd">

    <!-- Add AspectJ autoproxy support for AOP -->
    <aop:aspectj-autoproxy/>

    <!-- Add support for component scanning -->
    <context:component-scan base-package="com.example.demo"/>

    <!-- Add support for conversion, formatting and validation support -->
    <mvc:annotation-driven/>

    <!-- Define Spring MVC view resolver -->
    <bean
            class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/view/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <bean id="myDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
          destroy-method="close">
        <property name="driverClass" value="com.mysql.cj.jdbc.Driver"/>
        <property name="jdbcUrl"
                  value="jdbc:mysql://localhost:3306/web_customer_tracker?useSSL=false&amp;serverTimezone=UTC"/>
        <property name="user" value="springstudent"/>
        <property name="password" value="springstudent"/>


        <property name="minPoolSize" value="5"/>
        <property name="maxPoolSize" value="20"/>
        <property name="maxIdleTime" value="30000"/>
    </bean>


    <bean id="sessionFactory"
          class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <property name="dataSource" ref="myDataSource"/>
        <property name="packagesToScan" value="com.example.demo"/>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
            </props>
        </property>
    </bean>


    <bean id="myTransactionManager"
          class="org.springframework.orm.hibernate5.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"/>
    </bean>

    <tx:annotation-driven transaction-manager="myTransactionManager"/>


    <!-- Add support for reading web resources: css, images, js, etc ... -->


</beans>

web.xml：

    <?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
  <display-name>spring-mvc-crud-demo</display-name>

  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>index.html</welcome-file>
  </welcome-file-list>

  <servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>/WEB-INF/spring-mvc-crud-demo-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  
  <servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

Erros:

    java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: org.apache.catalina.LifecycleException: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springframework.org/schema/tx]
Offending resource: ServletContext resource [/WEB-INF/spring-mvc-crud-demo-servlet.xml]

标签： javaspring