JAVA入门教程 - idea 新建maven spring MVC项目

2022-11-27 08:29:44

用的是Idea2017版本。其他大同小异

1.新建项目

2.勾选Create from archetype 选中maven-archetype-webapp

3.输入项目名字。

4.下一步

5.点Finish后要等一会，在用maven下载模版，根据网速情况时间不一样。新建完成后结构如下

6.打开pom.xml文件添加引用包,(如果不知道pom引用方式，打开http://mvnrepository.com/ 示例查找spring-beans，然后点进去，选一个版本，会把maven的xml代码也放出来复制到pom文件里即可)

pom.xml代码如下:

<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/maven-v4_0_0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <groupId>zwtest8</groupId>

  <artifactId>zwtest8</artifactId>

  <packaging>war</packaging>

  <version>1.0-SNAPSHOT</version>

  <name>zwtest8 Maven Webapp</name>

  <url>http://maven.apache.org</url>

  <properties>

    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

    <!-- spring版本号 -->

    <spring.version>4.1.1.RELEASE</spring.version>

    <!-- mybatis版本号 -->

    <mybatis.version>3.2.6</mybatis.version>

    <!-- log4j日志文件管理包版本 -->

    <slf4j.version>1.7.7</slf4j.version>

    <log4j.version>1.2.17</log4j.version>

    <!-- jackson包版本 -->

    <jackson.version>2.5.0</jackson.version>

    <servlet.version>3.0.1</servlet.version>

    <jstl.version>1.2</jstl.version>

  </properties>

  <dependencies>

    <dependency>

      <groupId>junit</groupId>

      <artifactId>junit</artifactId>

      <version>3.8.1</version>

      <scope>test</scope>

    </dependency>

    <!-- servlet -->

    <dependency>

      <groupId>javax.servlet</groupId>

      <artifactId>javax.servlet-api</artifactId>

      <version>${servlet.version}</version>

      <scope>provided</scope>

    </dependency>

    <dependency>

      <groupId>jstl</groupId>

      <artifactId>jstl</artifactId>

      <version>${jstl.version}</version>

    </dependency>

    <!-- springMVC核心包 -->

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-webmvc</artifactId>

      <version>${spring.version}</version>

    </dependency>

    <!-- spring核心包 -->

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-core</artifactId>

      <version>${spring.version}</version>

    </dependency>

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-beans</artifactId>

      <version>${spring.version}</version>

    </dependency>

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-context</artifactId>

      <version>${spring.version}</version>

    </dependency>

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-context-support</artifactId>

      <version>${spring.version}</version>

    </dependency>

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-aop</artifactId>

      <version>${spring.version}</version>

    </dependency>

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-tx</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-jdbc</artifactId>

      <version>${spring.version}</version>

    </dependency>

    <!-- mybatis核心包 -->

    <dependency>

      <groupId>org.mybatis</groupId>

      <artifactId>mybatis</artifactId>

      <version>${mybatis.version}</version>

    </dependency>

    <!--mybatis spring 插件 -->

    <dependency>

      <groupId>org.mybatis</groupId>

      <artifactId>mybatis-spring</artifactId>

      <version>1.2.2</version>

    </dependency>

    <!-- Mysql数据库驱动包 -->

    <dependency>

      <groupId>mysql</groupId>

      <artifactId>mysql-connector-java</artifactId>

      <version>5.1.34</version>

    </dependency>

  </dependencies>

  <build>

    <finalName>zwtest7</finalName>

  </build>

</project>

然后右击pom.xml点Maven->Reimport (下载所有包,可能要一会时间）

7.新建几个目录：main/java/（存放java代码，各种java类库），WEB-INF/views(存放jsp页用的)

8.这时候想要在右击java目录建一个controller包，建不了

9.解决办法，点菜单File-Project Structure，在左边点“Modules”选项.展开选中java目录,点上面的的Sources,选中resources目录，点上面的Resources按钮.->如下,OK

10.这个时候右击java目录新建一个pages,名称为controller

11,在controller包下新建一个controlle 名为test类

test代码如下

package controller;

import org.springframework.stereotype.Controller;

import org.springframework.ui.ModelMap;

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

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

@Controller

@RequestMapping("/test")

public class test {

    @RequestMapping(value = "index.do")

    public String getUser(HttpServletRequest request, HttpServletResponse response, ModelMap mode) {

        mode.addAttribute("aaa", "hello v1");//传值到前台测试

        return "test/index";

    }

    @RequestMapping("abc.do")

    public String success(){

        return "test/abc";

    }

}


12.在views目录建一个index.jsp,代码如下:

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

<html>

<head>

    <title>Title</title>

</head>

<body>

${aaa}

<hr>

Hello Spring MVC

</body>

</html>

12.在resources目录下新建SpringMVC.xml文件内容如下:

 <context:component-scan base-package="controller"/> 指定Controller包名

<property name="prefix" value="/WEB-INF/views/"/> 指定View页路径

<?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">

    <context:component-scan base-package="controller"/>

    <!-- JSP视图文件解析配置 -->
    <bean id="urlBasedViewResolver"
          class="org.springframework.web.servlet.view.UrlBasedViewResolver">
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>
        <!-- <property name="viewClass" value="org.springframework.web.servlet.view.InternalResourceView"
            /> -->
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
    </bean>

</beans>

13.打开web.xml文件代码如下：(其中

<param-value>classpath:SpringMVC.xml</param-value>为指定SpringMVC的配置文件名

<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
         version="2.4">这里一定要是2.4,如果2.3使用的EL表达式在jsp页不会解析.

<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
         version="2.4">
  <display-name>Archetype Created Web Application</display-name>

  <servlet>
    <servlet-name>mvc-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:SpringMVC.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>mvc-dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>