分布式项目搭建之整合SpringMVC

SpringMVC的整合

• 1、配置web.xml 加载spring配置文件，以及配置前端控制器DispatcherServlet
由于service模块和dao模块都有spring配置文件，所以在加载spring配置文件的时候，需要加载整个父工程的spring配置文件classpath*:applicationContext-*.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
                      http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
  version="4.0"
  metadata-complete="false">

  <!--加载 spring容器-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:spring/applicationContext-*.xml</param-value>
    </context-param>

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

    <!--配置 前端控制器 -->

    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/springmvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>


    <!--配置字符编码过滤器-->
    <filter>
        <filter-name>characterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

</web-app>

• 2、创建springmvc.xml文件，配置试图解析器和注解驱动<mvc:annotation-driven>

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

    <!--配置包扫描注解-->
    <context:component-scan base-package="com.jsu.web"/>

    <!--配置视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <!--开启注解驱动-->
    <mvc:annotation-driven "/>

</beans>

• 3、创建controller

@Controller
@RequestMapping("/company")
public class CompanyController {

    private static final Logger logger = LoggerFactory.getLogger(CompanyController.class);

    @Autowired
    private ICompanyService iCompanyService;

    @ResponseBody
    @RequestMapping("/companyList")
    public List<Company> list ()  {
        logger.info("companyList " + iCompanyService.findAll());
        return iCompanyService.findAll();
    }
}

• 4、配置tomcat

• 5、测试运行
  

• 6、如果以上步骤没有问题，搭建就大功告成！！！