spring+spring mvc框架（一）_spring borno-优快云博客

本文介绍了一个使用 Spring MVC 的 Java Web 应用程序的配置过程，包括 web.xml 和 spring-config.xml 的设置，以及 DispatcherServlet 的配置。通过示例展示了如何实现 URL 映射并调用控制器方法。

web.xml配置

<?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_3_1.xsd"
         version="3.1">
    <servlet>
        <servlet-name>lf</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:ext/lf-servlet.xml</param-value>
        </init-param>
        <load-on-startup>0</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>lf</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-config.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
</web-app>

srping-config.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: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:property-placeholder location="classpath:config.properties" ignore-unresolvable="true"
                                     ignore-resource-not-found="true"/>       
       <context:annotation-config/>
       <context:component-scan base-package="lf">
              <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
       </context:component-scan>
</beans>

lf-servlet.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:aop="http://www.springframework.org/schema/aop"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:jee="http://www.springframework.org/schema/jee"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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/aop http://www.springframework.org/schema/aop/spring-aop.xsd  
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd  
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd  
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
      <bean id="viewResolver"
            class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/jsp/" />
            <property name="suffix" value=".jsp" />
      </bean>
      <mvc:annotation-driven />     
    <context:component-scan base-package="lf.controllers"/>
</beans>

UserContoller.java

@Controller
@RequestMapping(value = "/user")
public class UserController {    
    @RequestMapping({"/hello", "lj", "/"})
    public String hello() {      
        return "hello";
    }
}

hello.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title></title>
</head>
<body>
hello
</body>
</html>

配置完tomcat，输入localhost::8080/user/hello 跳转到hello.jsp 说明配置成功

项目目录