学习笔记——Spring+SpringMVC+MyBatis框架整合

一、Maven创建项目

1. 在Eclipse中选择New -> Project -> Maven -> Maven Project

 

2. 选择默认workspace之后建立maven-webapp

 

3. 填写Group Id和Artifact Id(项目名称)

 

4. 建立工程后发现目录结构报错

 

5. 为了避免乱码，右键点击工程选择Properties -> Resource，选择编码方式为UTF-8

 

6. 在Properties中选择Java Build Path -> JRE System Library -> Edit，选择默认JRE

 

7. 引入java ee的jar包解决index.jsp报错的问题，在pom.xml中<dependencies>标签内添加如下代码，至此目录报错问题解决

1 <dependency>
2     <groupId>javax</groupId>
3     <artifactId>javaee-api</artifactId>
4     <version>7.0</version>
5 </dependency>

 

8. 在pom.xml中引入SSM框架所需的jar包，pom.xml代码如下

 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.wwwsealss</groupId>
 5     <artifactId>SSMFrameBuild</artifactId>
 6     <packaging>war</packaging>
 7     <version>0.0.1-SNAPSHOT</version>
 8     <name>SSMFrameBuild Maven Webapp</name>
 9     <url>http://maven.apache.org</url>
 10     
 11     <properties>
 12         <!-- spring版本号 -->
 13         <spring.version>4.0.2.RELEASE</spring.version>
 14         <!-- mybatis版本号 -->
 15         <mybatis.version>3.2.6</mybatis.version>
 16         <!-- log4j日志文件管理包版本 -->
 17         <slf4j.version>1.7.7</slf4j.version>
 18         <log4j.version>1.2.17</log4j.version>
 19     </properties>
 20 
 21     <dependencies>
 22     
 23         <dependency>
 24             <groupId>junit</groupId>
 25             <artifactId>junit</artifactId>
 26             <version>4.11</version>
 27             <!-- 表示开发的时候引入，发布的时候不会加载此包 -->
 28             <scope>test</scope>
 29         </dependency>
 30         
 31         <!-- spring核心包 -->
 32         <dependency>
 33             <groupId>org.springframework</groupId>
 34             <artifactId>spring-core</artifactId>
 35             <version>${spring.version}</version>
 36         </dependency>
 37 
 38         <dependency>
 39             <groupId>org.springframework</groupId>
 40             <artifactId>spring-web</artifactId>
 41             <version>${spring.version}</version>
 42         </dependency>
 43         
 44         <dependency>
 45             <groupId>org.springframework</groupId>
 46             <artifactId>spring-oxm</artifactId>
 47             <version>${spring.version}</version>
 48         </dependency>
 49         
 50         <dependency>
 51             <groupId>org.springframework</groupId>
 52             <artifactId>spring-tx</artifactId>
 53             <version>${spring.version}</version>
 54         </dependency>
 55 
 56         <dependency>
 57             <groupId>org.springframework</groupId>
 58             <artifactId>spring-jdbc</artifactId>
 59             <version>${spring.version}</version>
 60         </dependency>
 61 
 62         <dependency>
 63             <groupId>org.springframework</groupId>
 64             <artifactId>spring-webmvc</artifactId>
 65             <version>${spring.version}</version>
 66         </dependency>
 67         
 68         <dependency>
 69             <groupId>org.springframework</groupId>
 70             <artifactId>spring-aop</artifactId>
 71             <version>${spring.version}</version>
 72         </dependency>
 73 
 74         <dependency>
 75             <groupId>org.springframework</groupId>
 76             <artifactId>spring-context-support</artifactId>
 77             <version>${spring.version}</version>
 78         </dependency>
 79 
 80         <dependency>
 81             <groupId>org.springframework</groupId>
 82             <artifactId>spring-test</artifactId>
 83             <version>${spring.version}</version>
 84         </dependency>
 85         
 86         <!-- mybatis核心包 -->
 87         <dependency>
 88             <groupId>org.mybatis</groupId>
 89             <artifactId>mybatis</artifactId>
 90             <version>${mybatis.version}</version>
 91         </dependency>
 92         
 93         <!-- mybatis/spring包 -->
 94         <dependency>
 95             <groupId>org.mybatis</groupId>
 96             <artifactId>mybatis-spring</artifactId>
 97             <version>1.2.2</version>
 98         </dependency>
 99         
100         <!-- 导入java ee jar 包 -->
101         <dependency>
102             <groupId>javax</groupId>
103             <artifactId>javaee-api</artifactId>
104             <version>7.0</version>
105         </dependency>
106         
107         <!-- 导入Mysql数据库链接jar包 -->
108         <dependency>
109             <groupId>mysql</groupId>
110             <artifactId>mysql-connector-java</artifactId>
111             <version>5.1.30</version>
112         </dependency>
113         
114         <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->
115         <dependency>
116             <groupId>commons-dbcp</groupId>
117             <artifactId>commons-dbcp</artifactId>
118             <version>1.2.2</version>
119         </dependency>
120         
121         <!-- JSTL标签类 -->
122         <dependency>
123             <groupId>jstl</groupId>
124             <artifactId>jstl</artifactId>
125             <version>1.2</version>
126         </dependency>
127         
128         <!-- 日志文件管理包 -->
129         <!-- log start -->
130         <dependency>
131             <groupId>log4j</groupId>
132             <artifactId>log4j</artifactId>
133             <version>${log4j.version}</version>
134         </dependency>
135 
136         <!-- 格式化对象，方便输出日志 -->
137         <dependency>
138             <groupId>com.alibaba</groupId>
139             <artifactId>fastjson</artifactId>
140             <version>1.1.41</version>
141         </dependency>
142 
143         <dependency>
144             <groupId>org.slf4j</groupId>
145             <artifactId>slf4j-api</artifactId>
146             <version>${slf4j.version}</version>
147         </dependency>
148 
149         <dependency>
150             <groupId>org.slf4j</groupId>
151             <artifactId>slf4j-log4j12</artifactId>
152             <version>${slf4j.version}</version>
153         </dependency>
154         <!-- log end -->
155         
156         <!-- 映入JSON -->
157         <dependency>
158             <groupId>org.codehaus.jackson</groupId>
159             <artifactId>jackson-mapper-asl</artifactId>
160             <version>1.9.13</version>
161         </dependency>
162         
163         <!-- 上传组件包 -->
164         <dependency>
165             <groupId>commons-fileupload</groupId>
166             <artifactId>commons-fileupload</artifactId>
167             <version>1.3.1</version>
168         </dependency>
169         
170         <dependency>
171             <groupId>commons-io</groupId>
172             <artifactId>commons-io</artifactId>
173             <version>2.4</version>
174         </dependency>
175         
176         <dependency>
177             <groupId>commons-codec</groupId>
178             <artifactId>commons-codec</artifactId>
179             <version>1.9</version>
180         </dependency>
181 
182         <dependency>
183             <groupId>org.mybatis.generator</groupId>
184             <artifactId>mybatis-generator-core</artifactId>
185             <version>1.3.2</version>
186         </dependency>
187 
188     </dependencies>
189     
190     <build>
191         <finalName>SSMFrameBuild</finalName>
192     </build>
193 </project>

 

二、Spring和MyBatis整合

1. 在工程目录src/main/resources下建立jdbc.properties文件，代码如下

 1 driver=com.mysql.jdbc.Driver  2 url=jdbc:mysql://localhost:3306/jsp_db  3 username=root  4 password=  5 #定义初始连接数  6 initialSize=0  7 #定义最大连接数  8 maxActive=20  9 #定义最大空闲 10 maxIdle=20 11 #定义最小空闲 12 minIdle=1 13 #定义最长等待时间 14 maxWait=60000

 

2. 在工程目录src/main/resources下建立spring-mybatis.xml文件，代码如下

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
 4  xmlns:context="http://www.springframework.org/schema/context"
 5  xmlns:mvc="http://www.springframework.org/schema/mvc"
 6  xsi:schemaLocation="http://www.springframework.org/schema/beans  7  http://www.springframework.org/schema/beans/spring-beans-3.1.xsd  8  http://www.springframework.org/schema/context  9  http://www.springframework.org/schema/context/spring-context-3.1.xsd 10  http://www.springframework.org/schema/mvc 11  http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
12     <!-- 自动扫描 -->
13     <context:component-scan base-package="com.wwwsealss" />
14     <!-- 引入配置文件 -->
15     <bean id="propertyConfigurer"
16  class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
17         <property name="location" value="classpath:jdbc.properties" />
18     </bean>
19 
20     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
21  destroy-method="close">
22         <property name="driverClassName" value="${driver}" />
23         <property name="url" value="${url}" />
24         <property name="username" value="${username}" />
25         <property name="password" value="${password}" />
26         <!-- 初始化连接大小 -->
27         <property name="initialSize" value="${initialSize}"></property>
28         <!-- 连接池最大数量 -->
29         <property name="maxActive" value="${maxActive}"></property>
30         <!-- 连接池最大空闲 -->
31         <property name="maxIdle" value="${maxIdle}"></property>
32         <!-- 连接池最小空闲 -->
33         <property name="minIdle" value="${minIdle}"></property>
34         <!-- 获取连接最大等待时间 -->
35         <property name="maxWait" value="${maxWait}"></property>
36     </bean>
37 
38     <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
39     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
40         <property name="dataSource" ref="dataSource" />
41         <!-- 自动扫描mapping.xml文件 -->
42         <property name="mapperLocations" value="classpath:com/wwwsealss/mapping/*.xml"></property>
43     </bean>
44 
45     <!-- DAO接口所在包名，Spring会自动查找其下的类 -->
46     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
47         <property name="basePackage" value="com.wwwsealss.dao" />
48         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
49     </bean>
50 
51     <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
52     <bean id="transactionManager"
53  class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
54         <property name="dataSource" ref="dataSource" />
55     </bean>
56 
57 </beans>

 

3. 在工程目录src/main/resources下建立log4j.properties文件，代码如下

 1 #定义LOG输出级别  2 log4j.rootLogger=INFO,Console,File  3 #定义日志输出目的地为控制台  4 log4j.appender.Console=org.apache.log4j.ConsoleAppender  5 log4j.appender.Console.Target=System.out  6 #可以灵活地指定日志输出格式，下面一行是指定具体的格式  7 log4j.appender.Console.layout = org.apache.log4j.PatternLayout  8 log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n  9 
10 #文件大小到达指定尺寸的时候产生一个新的文件 11 log4j.appender.File = org.apache.log4j.RollingFileAppender 12 #指定输出目录 13 log4j.appender.File.File = logs/ssm.log 14 #定义文件最大大小 15 log4j.appender.File.MaxFileSize = 10MB 16 # 输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志 17 log4j.appender.File.Threshold = ALL 18 log4j.appender.File.layout = org.apache.log4j.PatternLayout 19 log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n

 

4. 用MySQL Workbench创建测数据库jsp_db，并建立测试表user_t

 

5. 利用MyBatis Generator自动创建代码，需要目录中的三个jar包和一个生成器配置文件generatorConfig.xml，代码如下

 1 <?xml version="1.0" encoding="UTF-8"?>  
 2 <!DOCTYPE generatorConfiguration  3  PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"  4  "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">  
 5 <generatorConfiguration>  
 6 <!-- 数据库驱动-->  
 7     <classPathEntry location="mysql-connector-java-5.1.30.jar"/>  
 8     <context id="DB2Tables" targetRuntime="MyBatis3">  
 9         <commentGenerator>  
10             <property name="suppressDate" value="true"/>  
11             <!-- 是否去除自动生成的注释 true：是 ： false:否 -->  
12             <property name="suppressAllComments" value="true"/>  
13         </commentGenerator>  
14         <!--数据库链接URL，用户名、密码 -->  
15         <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/jsp_db" userId="root" password="">  
16         </jdbcConnection>  
17         <javaTypeResolver>  
18             <property name="forceBigDecimals" value="false"/>  
19         </javaTypeResolver>  
20         <!-- 生成模型的包名和位置-->  
21         <javaModelGenerator targetPackage="com.wwwsealss.entity" targetProject="src">  
22             <property name="enableSubPackages" value="true"/>  
23             <property name="trimStrings" value="true"/>  
24         </javaModelGenerator>  
25         <!-- 生成映射文件的包名和位置-->  
26         <sqlMapGenerator targetPackage="com.wwwsealss.mapping" targetProject="src">  
27             <property name="enableSubPackages" value="true"/>  
28         </sqlMapGenerator>  
29         <!-- 生成DAO的包名和位置-->  
30         <javaClientGenerator type="XMLMAPPER" targetPackage="com.wwwsealss.IDao" targetProject="src">  
31             <property name="enableSubPackages" value="true"/>  
32         </javaClientGenerator>  
33         <!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名-->  
34         <table tableName="user_t" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
35     </context>  
36 </generatorConfiguration>  

 

6. 在控制台中进入该目录并输入java -jar mybatis-generator-core-1.3.2.jar -configfile generatorConfig.xml -overwrite即可生成相应的实体类、接口、配置文件，将生成的三个包复制到工程目录src/main/java下，并将dao包下的Mapper改为Dao

 

7. 在工程目录src/main/java下建立service接口和实现类，代码如下

IUserService代码

1 package com.wwwsealss.service; 2 
3 import com.wwwsealss.entity.User; 4 
5 public interface IUserService { 6     public User getUserById(int userId); 7 }

UserServiceImpl代码

 1 package com.wwwsealss.service.impl;  2 
 3 import javax.annotation.Resource;  4 
 5 import org.springframework.stereotype.Service;  6 
 7 import com.wwwsealss.dao.IUserDao;  8 import com.wwwsealss.entity.User;  9 import com.wwwsealss.service.IUserService; 10 
11 @Service("userService") 12 public class UserServiceImpl implements IUserService { 13 
14  @Resource 15     private IUserDao iUserDao; 16 
17     public User getUserById(int userId) { 18         return this.iUserDao.selectByPrimaryKey(userId); 19  } 20     
21     public void saveNewUser(User user) { 22         this.iUserDao.insert(user); 23  } 24 
25 }

 

8. 在工程目录src/test/java下建立测试类，代码如下

 1 package com.wwwsealss.test;  2 
 3 import javax.annotation.Resource;  4 import javax.json.Json;  5 
 6 import org.junit.Test;  7 import org.junit.runner.RunWith;  8 import org.springframework.context.ApplicationContext;  9 import org.springframework.test.context.ContextConfiguration; 10 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; 11 
12 import com.alibaba.fastjson.JSON; 13 import com.sun.glass.ui.Application; 14 import com.sun.istack.internal.logging.Logger; 15 import com.wwwsealss.entity.User; 16 import com.wwwsealss.service.IUserService; 17 
18 @RunWith(SpringJUnit4ClassRunner.class)        //表示继承了SpringJUnit4ClassRunner类
19 @ContextConfiguration(locations = {"classpath:spring-mybatis.xml"}) 20 
21 public class TestMyBatis { 22     
23     private static Logger logger = Logger.getLogger(TestMyBatis.class); 24  @Resource 25     private IUserService userService = null; 26     
27  @Test 28     public void test() { 29         User user = userService.getUserById(1); 30  logger.info(JSON.toJSONString(user)); 31  } 32 
33 }

 

9. 右键TestMyBatis.java选择Run As -> JUnit Test，得到测试结果如下，说明Spring和MyBatis整合成功

 

三、整合SpringMVC

1. 在工程目录src/main/resources下建立spring-mvc.xml文件，代码如下

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
 4  xmlns:context="http://www.springframework.org/schema/context"
 5  xmlns:mvc="http://www.springframework.org/schema/mvc"
 6  xsi:schemaLocation="http://www.springframework.org/schema/beans  7  http://www.springframework.org/schema/beans/spring-beans-3.1.xsd  8  http://www.springframework.org/schema/context  9  http://www.springframework.org/schema/context/spring-context-3.1.xsd 10  http://www.springframework.org/schema/mvc 11  http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
12     <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->
13     <context:component-scan base-package="com.wwwsealss.controller" />
14     <!--避免IE执行AJAX时，返回JSON出现下载文件 -->
15     <bean id="mappingJacksonHttpMessageConverter"
16  class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
17         <property name="supportedMediaTypes">
18             <list>
19                 <value>text/html;charset=UTF-8</value>
20             </list>
21         </property>
22     </bean>
23     <!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
24     <bean 25         class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
26         <property name="messageConverters">
27             <list>
28                 <ref bean="mappingJacksonHttpMessageConverter" />    <!-- JSON转换器 -->
29             </list>
30         </property>
31     </bean>
32     <!-- 定义跳转的文件的前后缀 ，视图模式配置-->
33     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
34         <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->
35         <property name="prefix" value="/WEB-INF/jsp/" />
36         <property name="suffix" value=".jsp" />
37     </bean>
38     
39     <!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->
40     <bean id="multipartResolver"  
41  class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  
42         <!-- 默认编码 -->
43         <property name="defaultEncoding" value="utf-8" />  
44         <!-- 文件大小最大值 -->
45         <property name="maxUploadSize" value="10485760000" />  
46         <!-- 内存中的最大值 -->
47         <property name="maxInMemorySize" value="40960" />  
48     </bean> 
49 
50 </beans>

 

2. 配置web.xml文件，代码如下

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 3  xmlns="http://java.sun.com/xml/ns/javaee"
 4  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
 5  version="3.0">
 6     <display-name>Archetype Created Web Application</display-name>
 7     <!-- Spring和mybatis的配置文件 -->
 8     <context-param>
 9         <param-name>contextConfigLocation</param-name>
10         <param-value>classpath:spring-mybatis.xml</param-value>
11     </context-param>
12     <!-- 编码过滤器 -->
13     <filter>
14         <filter-name>encodingFilter</filter-name>
15         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
16         <async-supported>true</async-supported>
17         <init-param>
18             <param-name>encoding</param-name>
19             <param-value>UTF-8</param-value>
20         </init-param>
21     </filter>
22     <filter-mapping>
23         <filter-name>encodingFilter</filter-name>
24         <url-pattern>/*</url-pattern>
25     </filter-mapping>
26     <!-- Spring监听器 -->
27     <listener>
28         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
29     </listener>
30     <!-- 防止Spring内存溢出监听器 -->
31     <listener>
32         <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
33     </listener>
34 
35     <!-- Spring MVC servlet -->
36     <servlet>
37         <servlet-name>SpringMVC</servlet-name>
38         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
39         <init-param>
40             <param-name>contextConfigLocation</param-name>
41             <param-value>classpath:spring-mvc.xml</param-value>
42         </init-param>
43         <load-on-startup>1</load-on-startup>
44         <async-supported>true</async-supported>
45     </servlet>
46     <servlet-mapping>
47         <servlet-name>SpringMVC</servlet-name>
48         <!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->
49         <url-pattern>/</url-pattern>
50     </servlet-mapping>
51     <welcome-file-list>
52         <welcome-file>/index.jsp</welcome-file>
53     </welcome-file-list>
54 
55 </web-app>

 

3. 新建showUser.jsp文件，代码如下

 1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4   <head>
 5     <title>测试</title>
 6   </head>
 7   
 8   <body>
 9  用户名：${user.userName} 10         <br/>
11  年龄：${user.age} 12   </body>
13 </html>

 

4. 在工程目录src/main/java下建立UserController类，代码如下

 1 package com.wwwsealss.controller;  2 
 3 import javax.annotation.Resource;  4 import javax.servlet.http.HttpServletRequest;  5 
 6 import org.springframework.stereotype.Controller;  7 import org.springframework.ui.Model;  8 import org.springframework.web.bind.annotation.RequestMapping;  9 
10 import com.wwwsealss.entity.User; 11 import com.wwwsealss.service.IUserService; 12 
13 @Controller 14 @RequestMapping("/user") 15 public class UserController { 16  @Resource 17     private IUserService userService; 18     
19     @RequestMapping("/showUser") 20     public String toIndex(HttpServletRequest request,Model model){ 21         int userId = Integer.parseInt(request.getParameter("id")); 22         User user = this.userService.getUserById(userId); 23         
24         User user1 = new User(); 25         user1.setUserName("小明"); 26         
27         model.addAttribute("user", user); 28         return "showUser"; 29  } 30 }

 

5. 右键点击工程，Run As -> Run on Server，输入http://localhost:8080/SSMFrameBuild/user/showUser?id=1，得到如下测试结果说明SSM框架已经整合成功！

 

6. 最终目录结构