基于Maven构建整合SpringMVC+Mybtis+Druid

前几天趁空闲时间整合了下SpringMVC+Mybatis+Druid，这里小记录下，这个Demo是基于Maven构建的，数据源用的是阿里巴巴温少的开源项目Druid，数据库用的是Mysql。

由于eclipse去安装Maven很不方便，也老出错，这里我使用的是Spring Tool Suite（STS，基于 Spring IDE ，提供了其它的一些特性，如 基于 Spring dm Server 的osgi 开发，及其它一些 Spring 项目的支持，如 Spring Roo ， Spring Batch 等）。

一、相关JAR包

由于是基于Maven的项目，找起JAR包自然就方便了许多，我们只需要知道JAR的名字或者其中关键字就可以很轻松的把JAR包以及依赖JAR下载下来，需要多少下多少。

这里给出pom的配置文件。

 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>SpringMybatis</groupId>
 5     <artifactId>SpringMybatis</artifactId>
 6     <packaging>war</packaging>
 7     <version>0.0.1-SNAPSHOT</version>
 8     <name>SpringMybatis Maven Webapp</name>
 9     <url>http://maven.apache.org</url>
10     <dependencies>
11         <dependency>
12             <groupId>org.springframework</groupId>
13             <artifactId>spring-core</artifactId>
14             <version>3.2.10.RELEASE</version>
15         </dependency>
16         <dependency>
17             <groupId>org.springframework</groupId>
18             <artifactId>spring-web</artifactId>
19             <version>3.2.10.RELEASE</version>
20         </dependency>
21         <dependency>
22             <groupId>org.springframework</groupId>
23             <artifactId>spring-webmvc</artifactId>
24             <version>3.2.10.RELEASE</version>
25         </dependency>
26         <dependency>
27             <groupId>org.mybatis</groupId>
28             <artifactId>mybatis</artifactId>
29             <version>3.2.8</version>
30         </dependency>
31         <dependency>
32             <groupId>org.mybatis</groupId>
33             <artifactId>mybatis-spring</artifactId>
34             <version>1.1.1</version>
35         </dependency>
36         <dependency>
37             <groupId>mysql</groupId>
38             <artifactId>mysql-connector-java</artifactId>
39             <version>5.0.2</version>
40         </dependency>
41         <dependency>
42             <groupId>junit</groupId>
43             <artifactId>junit</artifactId>
44             <version>4.12</version>
45             <scope>test</scope>
46         </dependency>
47         <dependency>
48             <groupId>com.alibaba</groupId>
49             <artifactId>druid</artifactId>
50             <version>1.0.11</version>
51         </dependency>
52         <dependency>
53             <groupId>log4j</groupId>
54             <artifactId>log4j</artifactId>
55             <version>1.2.17</version>
56         </dependency>
57     </dependencies>
58     <build>
59         <finalName>SpringMybatis</finalName>
60     </build>
61 </project>

由于Maven会把JAR包所依赖的JAR包也一起下载下来，这里我们就不需要逐个去写Spring的相关JAR包。

这里用到了阿里巴巴温少的开源项目Druid的数据源，所以额外的多引入了一个Druid的JAR包。

关于JAR的扩展，如果有需要别的可以到：http://search.maven.org/ 去查找，然后复制到这个配置文件即可，Maven会帮我们自动下载添加。

二、相关配置

spring.xml

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:context="http://www.springframework.org/schema/context"
 4     xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
 5     xsi:schemaLocation="http://www.springframework.org/schema/beans 
 6     http://www.springframework.org/schema/beans/spring-beans.xsd
 7     http://www.springframework.org/schema/context
 8     http://www.springframework.org/schema/context/spring-context.xsd
 9     http://www.springframework.org/schema/aop
10     http://www.springframework.org/schema/aop/spring-aop.xsd
11     http://www.springframework.org/schema/tx 
12     http://www.springframework.org/schema/tx/spring-tx.xsd">
13 
14     <!-- 自动注入 -->
15     <context:component-scan base-package="lcw/service"/>
16 
17 
18 </beans>

mybatis-spring.xml

 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:context="http://www.springframework.org/schema/context"
 4     xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
 5     xsi:schemaLocation="http://www.springframework.org/schema/beans 
 6     http://www.springframework.org/schema/beans/spring-beans.xsd
 7     http://www.springframework.org/schema/context
 8     http://www.springframework.org/schema/context/spring-context.xsd
 9     http://www.springframework.org/schema/aop
10     http://www.springframework.org/schema/aop/spring-aop.xsd
11     http://www.springframework.org/schema/tx 
12     http://www.springframework.org/schema/tx/spring-tx.xsd">
13 
14     <!-- 配置数据源 -->
15     <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
16         <property name="url" value="jdbc:mysql:///test"></property>
17         <property name="username" value="root"></property>
18         <property name="password" value="root"></property>
19     </bean>
20     
21     
22     <!-- Mybatis文件 -->
23     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
24         <property name="dataSource" ref="dataSource"></property>
25         <property name="mapperLocations"  value="classpath:lcw/mapping/*.xml"></property>
26     </bean>
27     
28     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
29         <property name="basePackage" value="lcw.dao"></property>
30         <property name="sqlSessionFactoryBeanName" value    ="sqlSessionFactory"></property>
31     </bean>
32 
33 
34     <!-- 事务管理器 -->
35     <bean id="transactionManager"
36         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
37         <property name="dataSource" ref="dataSource"></property>
38     </bean>
39 
40     <tx:annotation-driven transaction-manager="transactionManager" />
41 
42 </beans>

springmvc.xml

 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="  
 7     http://www.springframework.org/schema/beans   
 8     http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
 9     http://www.springframework.org/schema/context  
10     http://www.springframework.org/schema/context/spring-context-3.0.xsd  
11     http://www.springframework.org/schema/mvc  
12     http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd  
13     ">
14 
15     <!-- 启用spring mvc 注解 -->
16     <context:annotation-config />
17 
18     <!-- 设置使用注解的类所在的jar包 -->
19     <context:component-scan base-package="lcw.controller"></context:component-scan>
20 
21     <!-- 完成请求和注解POJO的映射 -->
22     <bean
23         class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
24 
25     <!-- 对转向页面的路径解析。prefix：前缀， suffix：后缀 -->
26     <bean
27         class="org.springframework.web.servlet.view.InternalResourceViewResolver"
28         p:prefix="/" p:suffix=".jsp" />
29 
30 
31 </beans>

log4j.properties

1 #
 2 #    Copyright 2009-2012 the original author or authors.
 3 #
 4 #    Licensed under the Apache License, Version 2.0 (the "License");
 5 #    you may not use this file except in compliance with the License.
 6 #    You may obtain a copy of the License at
 7 #
 8 #       http://www.apache.org/licenses/LICENSE-2.0
 9 #
10 #    Unless required by applicable law or agreed to in writing, software
11 #    distributed under the License is distributed on an "AS IS" BASIS,
12 #    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 #    See the License for the specific language governing permissions and
14 #    limitations under the License.
15 #
16 
17 ### Global logging configuration
18 log4j.rootLogger=DEBUG, stdout
19 
20 ### Uncomment for MyBatis logging
21 log4j.logger.org.apache.ibatis=DEBUG
22 
23 ### Console output...
24 log4j.appender.stdout=org.apache.log4j.ConsoleAppender
25 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
26 log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

 

关于model、dao以及mapping的生成方式，在之前的文章《使用Mybatis-Generator自动生成Dao、Model、Mapping相关文件》有提到，这里就不再给出。

UserController.java

 1 package lcw.controller;
 2 
 3 import lcw.model.User;
 4 import lcw.service.UserServiceI;
 5 
 6 import org.springframework.beans.factory.annotation.Autowired;
 7 import org.springframework.stereotype.Controller;
 8 import org.springframework.ui.Model;
 9 import org.springframework.web.bind.annotation.RequestMapping;
10 @Controller
11 @RequestMapping("/userController")
12 public class UserController {
13     
14     private UserServiceI userService;
15     
16     public UserServiceI getUserService() {
17         return userService;
18     }
19     @Autowired
20     public void setUserService(UserServiceI userService) {
21         this.userService = userService;
22     }
23 
24     @RequestMapping("/showUser")
25     public String showUser(Model model){
26         User user=userService.getUserById(1);
27         model.addAttribute("user", user);
28         return "showuser";
29     }
30 
31 }

UserServiceI.java

1 package lcw.service;
2 
3 import lcw.model.User;
4 
5 public interface UserServiceI {
6     
7     public User  getUserById(int id);
8 
9 }

UserService.java

package lcw.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import lcw.dao.UserMapper;
import lcw.model.User;

@Service("userService")
public class UserService implements UserServiceI {

    private UserMapper userMapper;
    
    public UserMapper getUserMapper() {
        return userMapper;
    }

    @Autowired
    public void setUserMapper(UserMapper userMapper) {
        this.userMapper = userMapper;
    }




    @Override
    public User getUserById(int id) {
        return userMapper.selectByPrimaryKey(id);
        
    }

}

showuser.jsp

1 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
 2     pageEncoding="ISO-8859-1"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 7 <title>Insert title here</title>
 8 </head>
 9 <body>
10     Hello ${user.password} !!
11 </body>
12 </html>

web.xml

 1 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 2     xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
 3     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
 4     id="WebApp_ID" version="2.5">
 5 
 6 
 7     <!-- 解决工程编码过滤器 -->
 8     <filter>
 9         <filter-name>characterEncodingFilter</filter-name>
10         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
11         <init-param>
12             <param-name>encoding</param-name>
13             <param-value>UTF-8</param-value>
14         </init-param>
15     </filter>
16     <filter-mapping>
17         <filter-name>characterEncodingFilter</filter-name>
18         <url-pattern>/*</url-pattern>
19     </filter-mapping>
20 
21     <!-- SpringMVC配置 -->
22     <servlet>
23         <servlet-name>springDispatcherServlet</servlet-name>
24         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
25         <init-param>
26             <param-name>contextConfigLocation</param-name>
27             <param-value>classpath:springmvc.xml</param-value>
28         </init-param>
29         <load-on-startup>1</load-on-startup>
30     </servlet>
31 
32     <servlet-mapping>
33         <servlet-name>springDispatcherServlet</servlet-name>
34         <url-pattern>/</url-pattern>
35     </servlet-mapping>
36 
37 
38     <!-- 配置文件所在位置 -->
39     <context-param>
40         <param-name>contextConfigLocation</param-name>
41         <param-value>classpath:spring.xml,classpath:mybatis-spring.xml</param-value>
42     </context-param>
43     <!-- Spring配置（监听器） -->
44     <listener>
45         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
46     </listener>
47 
48 
49 
50 
51 
52 </web-app>

看下效果图：

好了，SpringMVC+Mybtis+Druid完美整合~