This time we use the idea to build the project springmvc

This case code github address:

 

1. First, we can create a maven project,file-> new ->project->maven，现则createa form archetype,这样可以生成maven的一些构建插件

2. Write the project name, finish can

 

3. The overall project structure as follows

 

 

 4. maven transformed into our common structure, resources and new java package at the package main, the java package marked as root, root path resources into resource packet marker

 

 

 

 

4. SpringMVC introduced pom, integers follows pom

<?xml version="1.0" encoding="UTF-8"?>

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.zy</groupId>
  <artifactId>springmvc-demo2</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>springmvc-demo2 Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
    <spring.version>5.1.6.RELEASE</spring.version>
  </properties>

  <dependencies>
    <!--spring 核心包-->
    <!-- spring start -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>



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

    <!-- spring end -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <!--日志-->
    <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12 -->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>1.8.0-alpha0</version>
      <scope>test</scope>
    </dependency>


    <!--j2ee相关包 servlet、jsp、jstl-->
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.2</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
    </dependency>
  </dependencies>

  <build>
    <finalName>springmvc-demo2</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.22.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

 

4.1这里我们只导入了 spring-mvc的依赖，他会自动导入spring的相关包，打开maven导图你可以看到springmvc会自动依赖spring相关的jar，也就是说导入了mvc的包，他会自动把spring相关的包也导入进来，这就是maven的依赖管理的好处

 

5.在web.xml中写DispatcherServlet，这是springmvc的servlet，指定了springmvc的配置文件地址在classpath:spring-mvc.xml，spring容器使用ContextLoaderListener制定了spring配置文件在classpath:applicationContext.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>Archetype Created Web Application</display-name>
<!--spring的配置文件地址-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--springmvc的配置文件地址-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>
<!--启动时间，跟服务器一起启动-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
<!--拦截所有请求-->
        <url-pattern>/*</url-pattern>
    </servlet-mapping>
</web-app>

 

 6.springmvc得配置文件

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

    <!--此文件负责整个mvc中的配置-->

    <!-- 配置注解驱动 可以将request参数与绑定到controller参数上 -->
    <mvc:annotation-driven/>

    <!--静态资源映射-->
    <!--本项目把静态资源放在了webapp的statics目录下，资源映射如下-->
    <!--<mvc:resources mapping="/css/**" location="/static/css/"/>-->
    <!--<mvc:resources mapping="/js/**" location="/static/js/"/>-->
    <!--<mvc:resources mapping="/image/**" location="/static/images/"/>-->
    <mvc:default-servlet-handler />  <!--这句要加上，要不然可能会访问不到静态资源，具体作用自行百度-->

    <!-- 对模型视图名称的解析，即在模型视图名称添加前后缀(如果最后一个还是表示文件夹,则最后的斜杠不要漏了) 使用JSP-->
    <!-- 默认的视图解析器 在上边的解析错误时使用 (默认使用html)- -->
    <bean id="defaultViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/"/><!--设置JSP文件的目录位置-->
        <property name="suffix" value=".jsp"/>
    </bean>

    <!-- 自动扫描装配,扫描controller包的注解，加入到容器中 -->
    <context:component-scan base-package="com.zy.controller"/>

</beans>

 

7.application配置文件

<?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"
       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">

    <context:component-scan base-package="com.zy">
        <!--application父容器不扫描controller注解，这样两个配置文件各自各负责各自的-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

</beans>

 

 8.根据springmvc.xml配置文件，在WEB-INF下新建views包和index.jsp

 

 

 9.新建com.zy.controller包，并写一个controller类进行

 

 

 10.配置tomcat服务器

 

 

 

 

 

 

 

11.启动tomcat服务器，http://localhost:8080/hello，这是测试jsp页面的，进行测试

 

 

 12.在浏览器输入刚才controller的请求地址，看结果

12.顺利完成springmcx基于xml配置的构建。

 

相关代码github地址：