spring环境搭建和入门示例

1、环境搭建

1、创建mavenweb工程，导入jar包

spring-context
spring-web
spring-webmvc
commons-logging
log4j
javax.servlet-api

jsp-api

2、在web.xml中配置DispatcherServlet

要配置springmvc.xml的url和DispatcherServlet 所要拦截的url

  <?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">

      <!-- The front controller of this Spring Web application, responsible for 
          handling all application requests -->
      <servlet>
          <servlet-name>springDispatcherServlet</servlet-name>
          <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
          <init-param>
              <param-name>contextConfigLocation</param-name>
              <!-- 此为之后要创建的springmvc.xml的位置 -->
              <param-value>classpath:springmvc.xml</param-value>
          </init-param>
          <load-on-startup>1</load-on-startup>
      </servlet>

      <!-- Map all requests to the DispatcherServlet for handling -->
      <servlet-mapping>
          <servlet-name>springDispatcherServlet</servlet-name>
          <!-- 
              DispatcherServlet所要拦截的url，“/”表示拦截“/index”这样的路径
               不会拦截“.jsp”这种带后缀的路径，“/*”会拦截所有路径
           -->
          <url-pattern>/</url-pattern>
      </servlet-mapping>
  </web-app>

3、配置springmvc.xml

配置注解扫描和视图解析器

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

      <!-- 基本包扫描 -->
      <context:component-scan
          base-package="priv.wfq.spring" />
      <!-- 视图解析器 -->
      <bean id="internalResourceViewResolver"
          class="org.springframework.web.servlet.view.InternalResourceViewResolver">
          <!-- prefix:是指访问页面的前缀，指定页面存放的文件夹 -->
          <property name="prefix" value="/WEB-INF/view/"></property>
          <!-- suffix:是指文件的后缀名，常见的后缀名有html,jsp,php,txt,mp3 -->
          <property name="suffix" value=".jsp"></property>
      </bean>

  </beans>

4、编写Controller类

  @Controller
  public class IndexController {

      //该注解表示用户访问url根目录后的路径，如“http://localhost:8080/spring/index”中的“/index”
      @RequestMapping("/index")
      public String index() {
          //返回存放页面的文件夹下的“index.jsp”页面
          return "index";
      }
  }

5、编写index.jsp页面

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
    <h1>这是index.jsp页面</h1>
</body>
</html>

spring环境搭建和入门示例

1、环境搭建

1、创建mavenweb工程，导入jar包

2、在web.xml中配置DispatcherServlet

3、配置springmvc.xml

4、编写Controller类

5、编写index.jsp页面

6、工程结构，仅供参考

2、测试

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