SpringMVC-Maven 搭建及发布到Tomcat7操作流程

该文档主要记录SpringMVC-Maven 搭建及发布到Tomcat7操作流程

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Round 1: 使用Eclipse创建Maven项目

创建名称SpringMVC-studyDemo的Maven项目

其中index.jsp报错，错误信息：Multiple annotations found at this line: - The superclass

意思是缺少servlet包，我们可以导入javax.servlet-api-3.1.0.jar包.
只需要在pom.xml中添加依赖即可

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
        <!--有关jar包 依赖 可登录http://mvnrepository.com/ 查询对应jar包-->
    </dependency>

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Round 2: 引入Spring MVC

这里主要是在pom.xml中增加对Spring的依赖

     <properties>
          <spring.version>5.0.8.RELEASE</spring.version>
     </properties>
     <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>

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Round 3: web.xml 启动支持Spring MVC

这里主要是在web.xml中增加对Spring的启动配置

    <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">
  <display-name>Archetype Created Web Application</display-name>
  <servlet>
        <!--DispatcherServlet是前端控制器设计模式的实现，提供Spring Web MVC的集中访问点，而且负责职责的分派-->
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--servlet 加载配置文件-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springContext.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!--全局加载 配置文件-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <!--此处可以配置多项-->
        <!--classpath默认为 src/main/resources-->
        <param-value>classpath:springContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

</web-app>

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Round 4: 配置 springContext.xml

<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"
    xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <!-- 搜索spring控件 -->
    <!-- 这里 base-package 地址为 src/main/java 下建立 默认 controller的包名-->
    <context:component-scan base-package="com.spring.mvc.controller"></context:component-scan>
    <!-- 视图页面配置 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/WEB-INF/views/</value>
        </property>
        <property name="suffix">
            <value>.jsp</value>
        </property>
    </bean>
</beans>

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Round 5: 创建Spring控制器和视图

Controller 文件

package com.spring.mvc.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class HelloWorldController {

    @RequestMapping("/helleworld")
    public ModelAndView hellWorld() {
        ModelAndView view=new ModelAndView("index.jsp");

        return view;
    }
}

jsp 文件

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
    <p>this is helloworld jsp</p>

</body>
</html>

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Round 6: 编译项目发布部署

Maven install

在\study-demo\target\目录下生成study-demo.war 可直接部署到tomcat/webapp目录下。

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Round 7: Q&A

待续.....

来源：51CTO

作者：洛山红茶

链接：https://blog.51cto.com/85608547/2161548