專案說明：

(1) 本例採用 maven web 工程做例子講解

(2) 利用mybaits 提供的程式碼生成工具自動生成程式碼(dao介面，sql mapper對映檔案，pojo資料庫對映類)

(3) 資料庫用 MySQL

專案構建：

一，新建maven web 工程

網上有很多詳細的教程，初學者可以點這裡跳轉學習：eclipse建立maven工程

本例專案結構如下，待會再一步一步講解：

二，引入需要的jar包到pom.xml中，配置如下：

1. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
2.     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  
3.     <modelVersion>4.0.0</modelVersion>  
4.     <groupId>com.maven.web</groupId>  
5.     <artifactId>com.maven.web</artifactId>  
6.     <packaging
   >war</packaging>  
7.     <version>0.0.1-SNAPSHOT</version>  
8.     <name>com.maven.web Maven Webapp</name>  
9.   
10.     <properties>  
11.         <spring.version>4.3.0.RELEASE</spring.version>  
12.         <jackson.version>2.6.5</jackson.version>  
13.         <fastjson.version>1.2.23</fastjson.version>  
14.         <mybatis.version>3.3.0</mybatis.version>  
15.         <mybatis-spring.version>1.2.3</mybatis-spring.version>  
16.         <mysql.connector.version>5.1.29</mysql.connector.version>  
17.     </properties>  
18.   
19.     <repositories>  
20.         <repository>  
21.             <id>spring-milestones</id>  
22.             <name>Spring Milestones</name>  
23.             <url>https://repo.spring.io/libs-milestone</url>  
24.             <snapshots>  
25.                 <enabled>false</enabled>  
26.             </snapshots>  
27.         </repository>  
28.     </repositories>  
29.   
30.     <dependencies>  
31.         <dependency>  
32.             <groupId>junit</groupId>  
33.             <artifactId>junit</artifactId>  
34.             <version>3.8.1</version>  
35.             <scope>test</scope>  
36.         </dependency>  
37.   
38.         <dependency>  
39.             <groupId>javax.annotation</groupId>  
40.             <artifactId>javax.annotation-api</artifactId>  
41.             <version>1.2</version>  
42.         </dependency>  
43.   
44.         <!-- Spring -->  
45.         <dependency>  
46.             <groupId>org.springframework</groupId>  
47.             <artifactId>spring-core</artifactId>  
48.             <version>${spring.version}</version>  
49.         </dependency>  
50.         <dependency>  
51.             <groupId>org.springframework</groupId>  
52.             <artifactId>spring-expression</artifactId>  
53.             <version>${spring.version}</version>  
54.         </dependency>  
55.         <dependency>  
56.             <groupId>org.springframework</groupId>  
57.             <artifactId>spring-beans</artifactId>  
58.             <version>${spring.version}</version>  
59.         </dependency>  
60.         <dependency>  
61.             <groupId>org.springframework</groupId>  
62.          &nbs