.Net 码农搭使用 Intellij ideal 搭Java Maven + Spring + Spring MVC + Mybatis 框架（一）

参考感谢：

IntelliJ idea创建Spring MVC的Maven项目： https://www.cnblogs.com/lonelyxmas/p/5337672.html
大家来找茬-SpringMVC中Tomcat正常启动，始终访问不了Controller,出404错： http://doc.okbase.net/notDog/archive/169514.html
Spring 整合mybatis配置：http://blog.csdn.net/tolcf/article/details/50836196
MyBatis简介与配置MyBatis+Spring+MySql：http://limingnihao.iteye.com/blog/781671
SpringMVC+fastjson项目配置：https://www.cnblogs.com/blog5277/p/6398617.html
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Maven 仓库：http://mvnrepository.com/

1.创建 Maven WebApp项目

File->New->Project 创建项目：

GroupId：是项目组织唯一的标识符，实际对应JAVA的包的结构，是main目录里java的目录结构

ArtifactId：就是项目的唯一的标识符，实际对应项目的名称，就是项目根目录的名称。

完成，等待Maven生成模板，在此可开启显示Maven命令工具

最后生成以下项目目录结构：

这里生成的是简单JSP网站目录结果，接下来我们要调整一下目录结果以配置Spring MVC

先建以下目结构：

然后点击 File->Project Structure 或点击以下工具按钮标识文件夹类型

标识目录文件夹类型

选中文件夹点击上面的Mark as 对应的类型

以下就要开始Spring相关的配置了..

通过Maven引用依赖

配置pom.xml文件

1.在project节点下新增properties节点描述依赖的版本信息：

<properties>
<spring.version>4.2.0.RELEASE</spring.version>
<spring-data.version>4.2.0.RELEASE</spring-data.version>
<!--mybatis版本号-->
<mybatis.version>3.2.6</mybatis.version>
<slf4j.version>1.7.7</slf4j.version>
<log4j.version>1.2.17</log4j.version>
</properties>

的dependencies节点中添加以下Spring /Spring Mvc/fast json/mybats 等依赖

<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
 
<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>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
 
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
 
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
 
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
 
 
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
 
<!--https://mvnrepository.com/artifact/com.alibaba/fastjson-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.41</version>
</dependency>
 
<!--https://mvnrepository.com/artifact/org.apache.commons/commons-lang3-->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.7</version>
</dependency>
 
<!--mybatis核心包-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!--mybatis/spring包-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!--导入javaeejar包-->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
 
<!--导入Mysql数据库链接jar包-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency>
 
<!--导入dbcp的jar包，用来在applicationContext.xml中配置数据库-->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
 
<!--JSTL标签类-->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
 
<!--日志文件管理包-->
<!--logstart-->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
 
<dependency>
<groupId>aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.5.4</version>
</dependency>

完整的pom.xml文件

<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>4.0.0</modelVersion>

  <groupId>com.springdemo</groupId>
  <artifactId>com.springdemo</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>com.springdemo</name>
  <url>http://maven.apache.org</url>

  <properties>
    <spring.version>4.2.0.RELEASE</spring.version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <mybatis.version>3.2.6</mybatis.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>org.springframework.shell</groupId>
      <artifactId>spring-shell</artifactId>
      <version>1.2.0.RELEASE</version>
    </dependency>

    <!--Spring框架-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
    </dependency>

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

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>


    <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
    <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-lang3</artifactId>
      <version>3.7</version>
    </dependency>

    <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->
    <dependency>
      <groupId>commons-dbcp</groupId>
      <artifactId>commons-dbcp</artifactId>
      <version>1.2.2</version>
    </dependency>

    <!-- mybatis核心包 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>
    <!-- mybatis/spring包 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.2.2</version>
    </dependency>

    <!-- 导入Mysql数据库链接jar包 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.34</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.2.41</version>
    </dependency>

  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-shade-plugin</artifactId>
        <version>1.2.1</version>
        <executions>
          <execution>
            <phase>package</phase>
            <goals>
              <goal>shade</goal>
            </goals>
            <configuration>
              <transformers>
                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                  <mainClass>com.springdemo.App</mainClass>
                </transformer>
              </transformers>
            </configuration>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>

</project>

出现红色下划线，点击下上图的按钮让Maven下载依赖

接下来构建应用程序代码结构：

新增包，类C#中的命名空间

如下：

新建一个Controller:

mainController 完成代码：

package controllers;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
 
@Controller
public class mainController {
 
    @RequestMapping(value = "/", method = RequestMethod.GET)
    public String index() {
        return "index";
    }
 
}

完成后打个包试试：