SpringMVC-HelloWorld (XML)

2023-01-25 11:48:22

Spring2.5.6开启了Spring的注解时代，简化了的xml配置，提高了开发效率；但是，对于Spring的初学者，xml配置更容易理解的Spring的Ioc特性，aop特性；本文使用Maven构建工具，构建了基于XML配置的SpringMVC示例；

使用的技术

Spring 3.0.5.RELEASE
Maven 3
JDK 1.7
eclipse Kepler

Maven的pom.xml

<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.gogo</groupId>

  <artifactId>springmvc-xml</artifactId>

  <version>0.0.1-SNAPSHOT</version>

  <properties>

    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

    <spring>3.0.5.RELEASE</spring>

  </properties>

  <dependencies>

    <!-- springmvc配置 -->

	<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->

	<dependency>

		<groupId>org.springframework</groupId>

		<artifactId>spring-context</artifactId>

		<version>${spring}</version>

	</dependency>

	<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->

	<dependency>

		<groupId>org.springframework</groupId>

		<artifactId>spring-webmvc</artifactId>

		<version>${spring}</version>

	</dependency>

    <!-- spring-jdbc 配置-->

	<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->

	<dependency>

		<groupId>org.springframework</groupId>

		<artifactId>spring-jdbc</artifactId>

		<version>${spring}</version>

	</dependency>

	<!-- JSTL -->

	<dependency>

		<groupId>javax.servlet</groupId>

		<artifactId>jstl</artifactId>

		<version>1.1.2</version>

	</dependency>

	<dependency>

		<groupId>taglibs</groupId>

		<artifactId>standard</artifactId>

		<version>1.1.2</version>

	</dependency>

  </dependencies>

</project>

Servlet的web.xml

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

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">

  <display-name>springmvc-xml</display-name>

  <welcome-file-list>

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

    <welcome-file>index.htm</welcome-file>

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

    <welcome-file>default.html</welcome-file>

    <welcome-file>default.htm</welcome-file>

    <welcome-file>default.jsp</welcome-file>

  </welcome-file-list>

  <!-- Servlet配置  -->

    <servlet>

        <servlet-name>SpringMVC</servlet-name>

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

        <init-param>

            <param-name>contextConfigLocation</param-name>

            <param-value>/WEB-INF/SpringMVC-servlet.xml</param-value>

            <!-- 默认是/WEB-INF/[servlet名字]-servlet.xml -->

        </init-param>

        <load-on-startup>1</load-on-startup>

    </servlet>

    <servlet-mapping>

        <servlet-name>SpringMVC</servlet-name>

        <url-pattern>*.htm</url-pattern>

    </servlet-mapping>

    <!-- 编码处理过滤器 -->

	<filter>

		<filter-name>encodingFilter</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>

		<init-param>

			<param-name>forceEncoding</param-name>

			<param-value>true</param-value>

		</init-param>

	</filter>

	<filter-mapping>

		<filter-name>encodingFilter</filter-name>

		<url-pattern>/*</url-pattern>

	</filter-mapping>

</web-app>

SpringMVC-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:mvc="http://www.springframework.org/schema/mvc"

	xsi:schemaLocation="

        http://www.springframework.org/schema/beans

        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

        http://www.springframework.org/schema/mvc

        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd

        http://www.springframework.org/schema/context

        http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <!-- Scan the JavaConfig -->

	<!-- <context:component-scan base-package="com.cjt.springjdbc" /> -->

	<!-- controller配置 -->

	<bean name="/welcome.htm" class="com.cjt.springmvc_xml.controller.HelloController">

	  <property name="messageService">

	    <ref bean="messageService"></ref>

	  </property>

	</bean>

	<!-- service配置 -->

	<bean name="messageService" class="com.cjt.springmvc_xml.service.MessageService">

	  <!-- <property name="message" ref="message" /> -->

	</bean>

	<!-- <bean name="message" class="com.cjt.springmvc_xml.model.Message">

	  <property name="content" value="你好，世界！" />

	</bean> -->

	<!-- 视图解析配置 -->

	<bean id="viewResolver"

		class="org.springframework.web.servlet.view.InternalResourceViewResolver">

		<property name="prefix">

			<value>/WEB-INF/jsp/</value>

		</property>

		<property name="suffix">

			<value>.jsp</value>

		</property>

		<!-- <property name="order" value="0" /> -->

	</bean>

	<!-- 数据库配置 -->

	<!-- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"

		destroy-method="close">

		<property name="driverClassName" value="${jdbc.driverClassName}" />

		<property name="url" value="${jdbc.url}" />

		<property name="username" value="${jdbc.username}" />

		<property name="password" value="${jdbc.password}" />

	</bean>

	<context:property-placeholder location="classpath:jdbc.properties" /> -->

</beans>

Controller层

package com.cjt.springmvc_xml.controller;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;

import org.springframework.web.servlet.mvc.AbstractController;

import com.cjt.springmvc_xml.service.MessageService;

public class HelloController extends AbstractController{

	private MessageService messageService;

	public MessageService getMessageService() {

		return messageService;

	}

	public void setMessageService(MessageService messageService) {

		this.messageService = messageService;

	}

	@Override

	protected ModelAndView handleRequestInternal(HttpServletRequest request,

			HttpServletResponse response) throws Exception {

		// TODO Auto-generated method stub

		ModelAndView model = new ModelAndView("HelloPage");

		model.addObject("msg", messageService.getMessage().getContent());

		return model;

	}

}

Service层

package com.cjt.springmvc_xml.service;

import com.cjt.springmvc_xml.model.Message;

public class MessageService {

/*	private Message message;

	public Message getMessage() {

		return message;

	}

	public void setMessage(Message message) {

		this.message = message;

	}	*/

	public Message getMessage() {

		Message message = new Message();

		message.setContent("你好，世界！");

		return message;

	}

}

Mode层

package com.cjt.springmvc_xml.model;

public class Message {

	private String content;

	public String getContent() {

		return content;

	}

	public void setContent(String content) {

		this.content = content;

	}

}

码农公寓

使用的技术

Maven的pom.xml

Servlet的web.xml

SpringMVC-servlet.xml

Controller层

Service层

Mode层

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