Eclipse+Maven+Spring MVC初体验

最新推荐文章于 2020-12-24 14:26:17 发布

转载最新推荐文章于 2020-12-24 14:26:17 发布 · 266 阅读

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#Maven #SpringMVC #Spring MVC #Demo #Eclipse

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本文详细介绍了如何在Eclipse Mars.2环境下使用Maven构建SpringMVC项目，包括配置依赖、设置视图解析器及创建控制器等关键步骤。

开发环境：

Eclipse Mars.2 -----Version: Mars.2 Release (4.5.2) Build id: 20160218-0600

jdk1.8.0_73

Apache Tomcat 8.0.33

开发步骤：

1、新建maven project，选择webapp

2、修改pom.xml，添加依赖jar，工程上右键Maven->Update Project下载依赖jar

		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>3.0.1</version>
			<scope>compile</scope>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>4.1.2.RELEASE</version>
			<scope>compile</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>4.1.2.RELEASE</version>
			<scope>compile</scope>
		</dependency>

注：默认的maven库访问巨慢，可以考虑使用国内maven镜像库。拷贝\apache-maven-xxx\conf\settings.xml到C:\Users\用户名\.m2下，mirrors字段下配置镜像位置：

    <mirror>
       <id>nexus-aliyun</id>
       <mirrorOf>*</mirrorOf>
       <name>Nexus aliyun</name>
       <url>http://maven.aliyun.com/nexus/content/groups/public</url>
    </mirror>

3、修改工程下的web.xml（\工程名\src\main\webapp\WEB-INF\）

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

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

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

</web-app>

如果碰到不能转成3.0之类的错误，请修改\工程名\.settings\org.eclipse.wst.common.project.facet.core.xml

<installed facet="jst.web" version="3.0"/>

4、新增 spring-servlet.xml（和web.xml同一目录）

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

    <!-- 配置扫描的包 -->
    <context:component-scan base-package="com.java.mvn.springmvc.*" />

    <!-- 注册HandlerMapper、HandlerAdapter两个映射类 -->
    <mvc:annotation-driven />

    <!-- 访问静态资源 -->
    <mvc:default-servlet-handler />
    
    <!-- 视图解析器 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/view/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>
    
</beans>

5、在WEB-INF下创建view文件夹，并在其中创建demo.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>首页</title>
</head>
<body>
    <h1>This is SpringMVC Demo</h1>
</body>
</html>

6、创建DemoController类

package com.java.mvn.springmvc.controller;

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

@Controller
@RequestMapping("/demo")
public class DemoController {

	@RequestMapping("/index")
	public String index() {
		return "demo";
	}
}

7、编译工程（Project->Clean，之后再工程上右键Run As->Maven install），

右键Run As->Run on Server，用tomcat运行即可。

地址栏输入http://localhost:8080/test_spring_mvc/demo/index

显示This is SpringMVC Demo即为成功部署。

懒汉式代码下载链接：

https://download.youkuaiyun.com/download/lostfirer/10351129

基于转载更细化了一些

原博文查看 https://www.cnblogs.com/xiaowenbo/p/6980423.html