maven搭建 springmvc+mybatis应用

最近研究maven，故而用maven搭建了springmvc+mybatis框架来实践一下，如有不足之处，望指正。

下面开始讲解，本人视读者已经掌握maven的使用或者队maven有一定的了解，如果不了解maven，请查看小菜鸟的博客---maven详解。

本文用的spring是 4.0.5.RELEASE版，日志框架用的是logback 1.1.2，数据库连接池用的是c3p0 0.9.1.2，mybatis 用的是 3.2.7。所用技术基本都是最新版本。多说一句，本文 mybatis-spring桥用的是mybatis提供的mybatis-spring，当然你也可以用spring orm配合mybatis使用，但是没有用mybatis提供的简单，这里不再赘述。

首先创建一个maven project，编写pom文件，将对应的jar包引用进来。编辑后的pom如下：

Xml代码

<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>com.qijian</groupId>
<artifactId>SpringMVC</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>SpringMVC Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<junit.version>3.8.1</junit.version>
<logback.version>1.1.2</logback.version>
<jackson.version>1.9.9</jackson.version>
<common.fileupload.version>1.3.1</common.fileupload.version>
<spring.version>4.0.5.RELEASE</spring.version>
<aspectj.version>1.8.1</aspectj.version>
<jstl.version>1.2</jstl.version>
<mybatis-spring.version>1.2.2</mybatis-spring.version>
<mybatis.version>3.2.7</mybatis.version>
<c3p0.version>0.9.1.2</c3p0.version>
<mysql.version>5.1.31</mysql.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${common.fileupload.version}</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>3.2.4.RELEASE</version>
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${aspectj.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${aspectj.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis-spring.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>${c3p0.version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
</dependencies>
<build>
<finalName>SpringMVC</finalName>
</build>
</project>

下面开始配置springmvc ，首先编辑web.xml文件，配置springmvc，将请求转给spring mvc处理（注：springmvc在web.xml中是以servlet的形式

配置的，这里要和struts2的filter区分开）

springmvc 的servlet配置代码如下：

Xml代码

<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath*:spring*.xml
</param-value>
</init-param>
</servlet>

其中contextConfigLocation是可选配置参数，在此配置它的原因是因为本人将spring的配置文件放到了classpath下（即maven中的src/main/resources目录），

如果你不想配置此参数，则要配置另外一个listener（org.springframework.web.context.ContextLoaderListener），然后再将spring的配置文件（spring配置文件还有springmvc的配置文件，其中springmvc的配置文件名称为*-servlet.xml格式）放到web-inf目录下，你可以自己亲身实验一下，这里不再赘述，如果不清楚的可以找本人讲解。，其整个web.xml配置完如下：

Xml代码

<?xml version="1.0" encoding="UTF-8"?>
<web-app 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"
version="3.0"
metadata-complete="true">
<display-name>SpringMVC</display-name>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath*:spring*.xml
</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<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>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>

接着说spring的配置。spring 的配置比较简单，主要是开启spring注解以及引入数据库配置的properties文件，这里不再详细扩展，如有不明白的

地方可以给本人留言，本人将耐心讲解，spring.xml代码如下：

Xml代码

<?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:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<context:property-placeholder location="classpath*:config.properties" />
<context:component-scan base-package="com.qijian" />
</beans>

接下来是springmvc的配置，主要是配置处理springmvc请求的适配器以及模型视图适配器，由于前面spring用的是注解，这里和上面保持同步，spring-servlet.xml的代码如下：

Xml代码

<?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:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"/>
</list>
</property>
</bean>
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/" p:suffix=".jsp" />
</beans>

其中org.springframework.http.converter.ByteArrayHttpMessageConverter是将二进制字节流转换器，因本人项目中用到了验证码，故需配置此项，

如果你没哟这方面需求的话可以不配置。要想使用springmvc上传功能的话还应配置org.springframework.web.multipart.commons.CommonsMultipartResolver

来支持上传功能，这里不再赘述。

最后是mybatis的配置，主要是配置了数据源（连接池）、mybatis接口以及xml文件的映射位置、事务管理（这里使用的是spring jdbc的事务管理，

好处是通用，你也可以用其他来管理mybatis的事务），这里主要是使用的声明式事务（你也可以用注解式事务，如果你不嫌麻烦的话还可以用代码的形式），编辑完

的mybatis配置文件如下：

Xml代码

<?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:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="${driverClassName}" />
<property name="jdbcUrl" value="${jdbc_url}" />
<property name="user" value="${jdbc_username}" />
<property name="password" value="${jdbc_password}" />
<property name="initialPoolSize" value="1" />
<property name="minPoolSize" value="0" />
<property name="maxPoolSize" value="50" />
<property name="acquireIncrement" value="5" />
<property name="maxIdleTime" value="10" />
<property name="maxStatements" value="0" />
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" value="classpath*:com/qijian/dao/impl/*.xml" />
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.qijian.dao.inter" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<tx:advice id="transactionAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="add*" propagation="REQUIRED" />
<tx:method name="append*" propagation="REQUIRED" />
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="save*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="modify*" propagation="REQUIRED" />
<tx:method name="edit*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="remove*" propagation="REQUIRED" />
<tx:method name="repair" propagation="REQUIRED" />
<tx:method name="delAndRepair" propagation="REQUIRED" />
<tx:method name="get*" propagation="SUPPORTS" />
<tx:method name="find*" propagation="SUPPORTS" />
<tx:method name="load*" propagation="SUPPORTS" />
<tx:method name="search*" propagation="SUPPORTS" />
<tx:method name="datagrid*" propagation="SUPPORTS" />
<tx:method name="*" propagation="SUPPORTS" />
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="transactionPointcut"
expression="execution(* com.qijian.service..*Impl.*(..))" />
<aop:advisor pointcut-ref="transactionPointcut"
advice-ref="transactionAdvice" />
</aop:config>
</beans>

最后再给出logback.xml代码，这个比较简单，如果不愿改变输出格式的话直接默认的xml格式就可以了，这里给出我的日志输出格式

logback.xml

Xml代码

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} %-5p [%c{0}] %m%n</pattern>
</encoder>
</appender>
<root level="debug">
<appender-ref ref="STDOUT" />
</root>
</configuration>

以上基本将springmvc+mybatis的框架配置代码配置完了，然后编写代码就可以运行了。下面是示例代码：

controller

Java代码

package com.qijian.controller;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.qijian.po.User;
import com.qijian.service.inter.IUserService;
import com.qijian.util.DataGrid;
@Controller
@RequestMapping("/test")
public class TestController {
private static Logger logger = LoggerFactory.getLogger(TestController.class);
@Autowired
@Qualifier("userService")
private IUserService userService;
@RequestMapping("/json")
public @ResponseBody DataGrid<User> getAllUser(int page,int rows) {
DataGrid<User> dg = new DataGrid<User>();
List<User> userList = userService.getAllUser(page,rows);
dg.setRows(userList);
dg.setTotal(userService.userCount());
logger.debug("------query------");
return dg;
}
}

service接口：

Java代码

package com.qijian.service.inter;
import java.util.List;
import com.qijian.po.User;
public interface IUserService {
public List<User> getAllUser(int page,int rows);
public int userCount() ;
}

service实现

Java代码

package com.qijian.service.impl;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.qijian.dao.inter.UserMapper;
import com.qijian.po.User;
import com.qijian.service.inter.IUserService;
@Service("userService")
public class UserServiceImpl implements IUserService {
@Autowired
private UserMapper userMapper;
@Override
public List<User> getAllUser(int page,int rows){
page = page<0?1:page;
int start = (page-1) *rows;
int end = page*rows;
return userMapper.getAllUser(start,end);
}
@Override
public int userCount() {
return userMapper.userCount();
}
}

dao接口：

UserMapper.java

Java代码

package com.qijian.dao.inter;
import java.util.List;
import com.qijian.po.User;
public interface UserMapper {
int deleteByPrimaryKey(Integer id);
int insert(User record);
int insertSelective(User record);
User selectByPrimaryKey(Integer id);
int updateByPrimaryKeySelective(User record);
int updateByPrimaryKey(User record);
public List<User> getAllUser(int start,int end);
public int userCount();
}

dao实现（mybatis的xml文件）：

UserMapper.xml

Xml代码

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.qijian.dao.inter.UserMapper" >
<resultMap id="BaseResultMap" type="com.qijian.po.User" >
<id column="id" property="id" jdbcType="INTEGER" />
<result column="username" property="username" jdbcType="VARCHAR" />
<result column="password" property="password" jdbcType="VARCHAR" />
</resultMap>
<sql id="Base_Column_List" >
id, username, password
</sql>
<select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
select
<include refid="Base_Column_List" />
from qijian_user
where id = #{id,jdbcType=INTEGER}
</select>
<delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
delete from qijian_user
where id = #{id,jdbcType=INTEGER}
</delete>
<insert id="insert" parameterType="com.qijian.po.User" >
insert into qijian_user (id, username, password
)
values (#{id,jdbcType=INTEGER}, #{username,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR}
)
</insert>
<insert id="insertSelective" parameterType="com.qijian.po.User" >
insert into qijian_user
<trim prefix="(" suffix=")" suffixOverrides="," >
<if test="id != null" >
id,
</if>
<if test="username != null" >
username,
</if>
<if test="password != null" >
password,
</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides="," >
<if test="id != null" >
#{id,jdbcType=INTEGER},
</if>
<if test="username != null" >
#{username,jdbcType=VARCHAR},
</if>
<if test="password != null" >
#{password,jdbcType=VARCHAR},
</if>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="com.qijian.po.User" >
update qijian_user
<set >
<if test="username != null" >
username = #{username,jdbcType=VARCHAR},
</if>
<if test="password != null" >
password = #{password,jdbcType=VARCHAR},
</if>
</set>
where id = #{id,jdbcType=INTEGER}
</update>
<update id="updateByPrimaryKey" parameterType="com.qijian.po.User" >
update qijian_user
set username = #{username,jdbcType=VARCHAR},
password = #{password,jdbcType=VARCHAR}
where id = #{id,jdbcType=INTEGER}
</update>
<select id="getAllUser" resultType="com.qijian.po.User">
select * from qijian_user limit #{0},#{1}
</select>
<select id="userCount" resultType="int">
select count(id) from qijian_user
</select>
</mapper>

来源：oschina

链接：https://my.oschina.net/u/2347897/blog/602138

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