1、新建maven项目
参考mybatis学习笔记（五） -- maven+spring+mybatis从零开始搭建整合详细过程（上）第一部分，修改配置
2、修改pom.xml 文件
<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.lmei.springmvc</groupId> <artifactId>springmvc01</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <spring.version>4.3.0.RELEASE</spring.version> </properties> <dependencies> <!-- 添加Spring-core包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.1.4.RELEASE</version> </dependency> <!-- 添加spring-context包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.1.4.RELEASE</version> </dependency> <!-- 添加spring-jdbc包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.1.4.RELEASE</version> </dependency> <!-- 添加spring-test包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>4.1.4.RELEASE</version> </dependency> <!-- 添加spring-web包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.1.4.RELEASE</version> </dependency> <!--添加spring-webmvc包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.1.4.RELEASE</version> </dependency> <!-- JSTL --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> </dependencies> </project>
在加载包的过程中，出现下载失败的情况，找到存放位置，将下载jar失败的文件夹删掉，重新保存pom.xml让其重新下载。
出现重复多次操作，依然下载失败的情况，网上找了一些解决方法，比如直接使用maven install还是失败，最后重新开了一个工作空间，在另外一个工作空间建了个新的maven项目，然后把加载失败的包的配置复制到那边的pom.xml，可以下载成功。然后原项目的pom.xml重新保存后，项目不再报错。所以如果遇到同样的情况，可以试下用这种方法。
3、新建包，创建一个controller类
package com.lmei.springmvc01.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; //@Controller是为了让Spring IOC容器初始化时自动扫描到； //@RequestMapping是为了映射请求路径 @Controller @RequestMapping("/Hello") public class HelloWorld { @RequestMapping("/SayHello") public String SayHi(Model model) { model.addAttribute("message", "Hello Spring MVC!"); return "hello"; //返回视图 } }
4、在WEB-INFO下创建一个文件夾view，然后在里面创建一个jsp文件，命名为hello.jsp
hello.jsp的代码如下：(webapp/WEB-INFO/view/hello.jsp)
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Hello Spring MVC!</title> </head> <body> <h2>${message}</h2> </body> </html>
index.jsp代码如下： (webapp/index.jsp)
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> hello </body> </html>
5、添加springmvc-servlet.xml文件
<?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 http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd"> <!-- 自动扫描包，实现支持注解的IOC --> <context:component-scan base-package="com.lmei.springmvc01" /> <!-- spring mvc不处理静态资源 --> <mvc:default-servlet-handler /> <!-- 支持mvc注解驱动 --> <mvc:annotation-driven /> <!-- 视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver"> <!-- 前缀 --> <property name="prefix" value="/WEB-INF/view/" /> <!-- 后缀 --> <property name="suffix" value=".jsp" /> </bean> </beans>
6、修改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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 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"> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:springmvc-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
7、测试
项目右键->Run As->Run On Server->Tomcat...
启动时间可能比较长，默认的“start-timeout=45”，修改下时间长度
工作空间下的 metadata/.plugins/org.eclipse.wst.server.core/servers.xml 文件，修改时间，比如改成450
start-timeout="450"
保存后，重新启动，成功运行，默认跳到index.jsp页面
在浏览器输入：http://localhost:8888/springmvc01/Hello/SayHello
