Java归去来第4集：java实战之Eclipse中创建Maven类型的SSM项目

Posted 2020-11-14 King

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一、前言

如果还不了解剧情，请返回第3集的剧情 Java归去来第3集：Eclipse中给动态模块升级

二、在Eclipse中创建Maven类型的SSM项目

2.1：SSM简介

SSM（Spring+SpringMVC+MyBatis）框架集由Spring、SpringMVC、MyBatis三个开源框架整合而成，常作为数据源较简单的web项目的框架。其中spring是一个轻量级的控制反转（IoC）和面向切面（AOP）的容器框架。SpringMVC分离了控制器、模型对象、分派器以及处理程序对象的角色，这种分离让它们更容易进行定制。MyBatis是一个支持普通SQL查询，存储过程和高级映射的优秀持久层框架

2.2：搭建maven类型的SSM项目的步骤

2.2.1：在pom.xml文件引入SSM所需要的包

<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>king.weixin</groupId>
  <artifactId>KingWeixin</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>KingWeixin Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <!-- 公共版本号 -->
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java-version>1.8</java-version>
    <org.springframework-version>4.3.5.RELEASE</org.springframework-version>
    <org.aspectj-version>1.7.2</org.aspectj-version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>
  <!-- 公共版本号 end -->
  <dependencies>
  <!-- junit 开始 -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  <!-- junit 结束 -->
  <!--spring mvc  开始-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${org.springframework-version}</version>
    </dependency>
    
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>${org.springframework-version}</version>
    </dependency>
    
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>${org.springframework-version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${org.springframework-version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${org.springframework-version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${org.springframework-version}</version>
      <exclusions>
        <!-- Exclude Commons Logging in favor of SLF4j -->
        <exclusion>
          <groupId>commons-logging</groupId>
          <artifactId>commons-logging</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
  <!--spring mvc 结束 -->
  <!-- mybatis & mysql  开始-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.31</version>
    </dependency>

    <dependency>
      <groupId>commons-dbcp</groupId>
      <artifactId>commons-dbcp</artifactId>
      <version>1.4</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.0</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.4.1</version>
    </dependency>
    
  <!-- mybatis & mysql 结束-->
  <!-- javax servlet 开始-->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.0.1</version>
      <scope>provided</scope>
    </dependency>
  <!-- javax servlet 结束-->
  
  <!--commons tools 开始 -->
    <dependency>
      <groupId>commons-configuration</groupId>
      <artifactId>commons-configuration</artifactId>
      <version>1.9</version>
    </dependency>
    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.3.2</version>
    </dependency>
    <dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>2.5</version>
    </dependency>
    <dependency>
      <groupId>commons-net</groupId>
      <artifactId>commons-net</artifactId>
      <version>3.5</version>
    </dependency>
    <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-lang3</artifactId>
      <version>3.2</version>
    </dependency>
  <!--commons tools 结束-->
  <!--log4j  开始-->
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-api</artifactId>
      <version>2.10.0</version>
    </dependency>
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>
      <version>2.10.0</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-web -->
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-web</artifactId>
      <version>2.10.0</version>
    </dependency>
      <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-jcl -->
      <dependency>
          <groupId>org.apache.logging.log4j</groupId>
          <artifactId>log4j-jcl</artifactId>
          <version>2.10.0</version>
      </dependency>
      <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-slf4j-impl -->
      <dependency>
          <groupId>org.apache.logging.log4j</groupId>
          <artifactId>log4j-slf4j-impl</artifactId>
          <version>2.10.0</version>
      </dependency>
  <!--log4j  结束-->
  
  <dependency>  
    <groupId>javax.servlet</groupId>  
    <artifactId>jstl</artifactId>  
    <version>1.2</version>  
</dependency> 
  
  </dependencies>
  <!--指定source和target编译版本开始  -->
  <build>
    <finalName>KingWeixin</finalName>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      </plugins>
  </build>
  <!--指定source和target编译版本结束  -->
</project>

View Code

2.2.2：修改web.xml文件

<?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">
    <!--项目名称 -->
    <display-name>KingWeixin</display-name>
    <!--项目编码过滤器开始-->
    <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
     <!--项目编码过滤器结束-->
     
    <!-- 配置文件所在位置设置开始-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:/config/spring-*.xml</param-value>
    </context-param>
    <!-- 配置文件所在位置设置结束-->
    
    <!-- Spring监听配置开始 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
     <!-- Spring监听配置结束 -->
    
    <!-- SpringMVC配置开始 -->
    <servlet>
        <servlet-name>springDispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:/config/spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springDispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
     <!-- SpringMVC配置结束-->
    
    
    
</web-app>

View Code

2.2.2：新建SSM相关文件

首先，创建spring-mvc.xml主要配置文件

<?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-4.0.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

    <!-- 注解扫描包 -->
    <context:component-scan base-package="com.king.weixin"/>
    <!-- 开启注解 -->
    <mvc:annotation-driven/>
    <!--
        配置静态资源，直接映射到对应的文件夹，不被DispatcherServlet处理，3.04新增功能，需要重新设置spring-mvc-3.0.xsd
    -->
    <mvc:resources mapping="/img/**" location="/img/" />
    <mvc:resources mapping="/js/**" location="/js/" />
    <mvc:resources mapping="/css/**" location="/css/" />
    <mvc:resources mapping="/html/**" location="/html/" />
    <mvc:resources mapping="/tinymce/**" location="/tinymce/" />
    <mvc:resources mapping="/upload/**" location="/upload/" />
    
    <!-- 定义跳转的文件的前后缀 ，视图模式配置-->
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