（二）.SpringMVC 学习-SpringMVC Hello World!

摘要: 实战之hello world!

开发工具：Eclipse,maven

数据库：MySql;

运行环境：TomCat；

JDK：JDK 1.7；

项目工程为：Dynamic Web Project；

至于如何创建maven 项目可参考：http://www.cnblogs.com/candle806/p/3439469.html

创建maven 项目，下面将介绍，如何创建hello world!想快速开发springmvc，整合spring,可先安装spring插件，可参考我的：Spring插件安装，及快速开发Spring Web mavan 项目（http://my.oschina.net/hapier/blog/712611）

项目结构：



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>org.springframework.samples.service.service</groupId>
<artifactId>springmvcDemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<properties>

<!-- Generic properties -->
<java.version>1.6</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

<!-- Web -->
<jsp.version>2.2</jsp.version>
<jstl.version>1.2</jstl.version>
<servlet.version>2.5</servlet.version>

<!-- Spring -->
<spring-framework.version>3.2.3.RELEASE</spring-framework.version>

<!-- Hibernate / JPA -->
<hibernate.version>4.2.1.Final</hibernate.version>

<!-- Logging -->
<logback.version>1.0.13</logback.version>
<slf4j.version>1.7.5</slf4j.version>

<!-- Test -->
<junit.version>4.11</junit.version>

</properties>

<dependencies>

<!-- Spring MVC -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring-framework.version}</version>
</dependency>

<!-- Other Web dependencies -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>${jsp.version}</version>
<scope>provided</scope>
</dependency>

<!-- Spring and Transactions -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring-framework.version}</version>
</dependency>

<!-- Logging with SLF4J & LogBack -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
<scope>runtime</scope>
</dependency>

<!-- Hibernate -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency>

<!-- Test Artifacts -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring-framework.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>

</dependencies>

<!-- 构建 -->
<build>
<finalName>springmvcDemo</finalName>
<plugins>
<!-- tomcat7 插件 启动命令：[clean tomcat7:run] -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
<!-- 端口号配置 -->
<port>8888</port>
<uriEncoding>UTF-8</uriEncoding>
<systemProperties>
<spring.profiles.active>development</spring.profiles.active>
</systemProperties>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

web.xml:

<?xml version="1.0" encoding="ISO-8859-1"?>
<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_2_5.xsd" id="WebApp_ID" version="2.5">

<display-name>springmvcDemo</display-name>

<!-- Spring 相关配置 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:config/spring.xml</param-value>
</context-param>

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

<!-- SpringMvc 相关配置 -->
<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:config/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

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

</web-app>

spring-mvc.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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
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"> 
<!-- 扫描com.demo.ctl包，控制器包 -->
<context:component-scan base-package="com.demo.ctl" />

<!-- 开启默认注解 -->
<mvc:annotation-driven />

<!-- 静态资源映射 -->
<mvc:resources mapping="/js/**" location="/WEB-INF/js/" />
<mvc:resources mapping="/css/**" location="/WEB-INF/css/" />
<mvc:resources mapping="/fonts/**" location="/WEB-INF/fonts/" />
<mvc:resources mapping="/plugins/**" location="/WEB-INF/plugins/" />
<mvc:resources mapping="images/**" location="/WEB-INF/images/" />
<!-- 当上面要访问的静态资源不包括在上面的配置中时，则根据此配置来访问 -->
<mvc:default-servlet-handler />

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

</beans>

HelloWorldController.java:

package com.demo.ctl;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping(value = "/hello")
public class HelloWorldController {

// 映射地址：hello/helloWorld
@RequestMapping("/helloWorld")
private String helloWorld(Model model) {
// 放值
model.addAttribute("message", "Hello World!");
// 跳转页面
return "hello/helloworld";
}
}

application-config.xml:[此节暂无用到]

<?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"> 
<!-- Uncomment and add your base-package here: <context:component-scan base-package="org.springframework.samples.service"/> -->

</beans>

index.jsp:

<!DOCTYPE html>

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>

<html>
<head>
<meta charset="utf-8">
<title>Welcome</title>
</head>
<body>
<c:url value="/hello/helloWorld" var="messageUrl" />
<a href="${messageUrl}">Click to enter</a>
</body>
</html>

helloworld.jsp

<!DOCTYPE html>

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<html>
<head>
<meta charset="utf-8">
<title>Welcome</title>
</head>
<body>
<h2>${message}</h2>
</body>
</html>

到此环境已经搭建成功，一个简单的helloworld已经over！

启动项目：由于项目配置 了tomcat插件【详见pom.xml】，启动项目可以配置命令【clean tomcat7:run】直接启动,启动方式如下：

点击

：


启动copy绿色路径访问：


看到看到以下界面，即为成功！

springmvcDemo


项目下载地址：链接：http://pan.baidu.com/s/1bpgHL3T 密码：laqi