springmvc入门

springmvc入门

一、开发环境

​ JDK： jdk1.8

​ IDE： IDEA 2019.1

​ Tomcat: tpmcat 8.5

​ spring: 4.3.8

二、开发步骤

2.1创建maven项目导入pom

<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>4.0.0modelVersion>

  <groupId>edu.xufegroupId>
  <artifactId>springmvcdemo01artifactId>
  <version>1.0-SNAPSHOTversion>
  <packaging>warpackaging>

  <name>springmvcdemo01 Maven Webappname>
  
  <url>http://www.example.comurl>

  <properties>
    <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
    <maven.compiler.source>1.8maven.compiler.source>
    <maven.compiler.target>1.8maven.compiler.target>
    <spring.version>4.3.18.RELEASEspring.version>
    <jstl.version>1.2jstl.version>
    <commons.version>1.2commons.version>
  properties>

  <dependencies>
    <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>4.12version>
      <scope>testscope>
    dependency>

    
    <dependency>
      <groupId>commons-logginggroupId>
      <artifactId>commons-loggingartifactId>
      <version>${commons.version}version>
    dependency>

    
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>jstlartifactId>
      <version>${jstl.version}version>
    dependency>


    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-aopartifactId>
      <version>${spring.version}version>
    dependency>

    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-beansartifactId>
      <version>${spring.version}version>
    dependency>

    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-contextartifactId>
      <version>${spring.version}version>
    dependency>

    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-coreartifactId>
      <version>${spring.version}version>
    dependency>

    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-expressionartifactId>
      <version>${spring.version}version>
    dependency>

    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webartifactId>
      <version>${spring.version}version>
    dependency>

    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webmvcartifactId>
      <version>${spring.version}version>
    dependency>

  dependencies>

  <build>
    <finalName>springmvcdemo01finalName>
    <pluginManagement>
      <plugins>
        <plugin>
          <artifactId>maven-clean-pluginartifactId>
          <version>3.1.0version>
        plugin>
        
        <plugin>
          <artifactId>maven-resources-pluginartifactId>
          <version>3.0.2version>
        plugin>
        <plugin>
          <artifactId>maven-compiler-pluginartifactId>
          <version>3.8.0version>
        plugin>
        <plugin>
          <artifactId>maven-surefire-pluginartifactId>
          <version>2.22.1version>
        plugin>
        <plugin>
          <artifactId>maven-war-pluginartifactId>
          <version>3.2.2version>
        plugin>
        <plugin>
          <artifactId>maven-install-pluginartifactId>
          <version>2.5.2version>
        plugin>
        <plugin>
          <artifactId>maven-deploy-pluginartifactId>
          <version>2.8.2version>
        plugin>
      plugins>
    pluginManagement>
  build>
project>

2.2编写一个Controller

package edu.xufe.controller;

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

/**
 * @ClassName HelloController
 * @Description 第一个spring mvc工程
 * @Author greatDistance
 * @Date 2019/6/21 10:09
 * @Version 1.0
 */
@Controller
public class HelloController {
    @RequestMapping("hello")
    public ModelAndView hello() {
        System.out.println("Hello spring mvc");
        ModelAndView modelAndView = new ModelAndView();
        // 设置模型数据，用于传递到jsp
        modelAndView.addObject("msg", "hello spring mvc");
        // 设置视图名字，用于响应用户
        modelAndView.setViewName("/WEB-INF/jsp/hello.jsp");
        return modelAndView;
    }
}

2.3 WEB-INF/jsp/创建hello.jsp页面

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



    
    


${ msg }

2.4 resources/创建与配置spring核心配置文件spring.xml

<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">
    
    <context:component-scan base-package="edu.xufe.controller"/>
beans>

2.5 在web.xml中配置前端控制器

<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>spring mvc demo01display-name>
    <welcome-file-list>
        <welcome-file>index.htmlwelcome-file>
        <welcome-file>index.htmwelcome-file>
        <welcome-file>index.jspwelcome-file>
        <welcome-file>default.htmlwelcome-file>
        <welcome-file>default.htmwelcome-file>
        <welcome-file>default.jspwelcome-file>
    welcome-file-list>

    
    <servlet>
        <servlet-name>springmvcservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>

        
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:springmvc.xmlparam-value>
        init-param>
    servlet>

    <servlet-mapping>
        <servlet-name>springmvcservlet-name>
        <url-pattern>*.actionurl-pattern>
    servlet-mapping>
web-app>

2.6 配置tomcat

​ 根据情况配置上下文

2.7 启动项目

​ 根据配置的tomcat访问项目

​ http://localhost:8080/hello.action

2.8 源代码

​ 源代码github：https://github.com/greatdistance/springmvc_project_demo/tree/master/springmvcdemo01