创建SpringMVC+Mybatis项目

创建maven的web项目

next后面自己写

配置pom.xml

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<!-- 表示开发的时候引入，发布的时候不会加载此包 -->
<scope>test</scope>
</dependency>
<!-- spring核心包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>
<!-- mybatis核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.3.0</version>
</dependency>
<!-- mybatis/spring包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 导入java ee jar 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>5.1.30</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 -->
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>

<!-- 格式化对象，方便输出日志 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.1.41</version>
</dependency>

<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.7</version>
</dependency>

<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.12</version>
</dependency>
<!-- log end -->
<!-- 映入JSON -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.5.3</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.5.3</version>
</dependency>
<!-- 上传组件包 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.9</version>
</dependency>
</dependencies>

配置web.xml

<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
<display-name>Archetype Created Web Application</display-name>

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

<servlet-mapping>
<servlet-name>spring-mvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>

配置spring-servlet.xml

在resource目录下创建spring-servlet.xml

<?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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> 
<!-- 引入配置文件 -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:*.properties</value>
</list>
</property>
</bean>

<!--注解自动扫描-->
<context:component-scan base-package="com.demo" />

<!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
<bean id="mappingJacksonHttpMessageConverter"
class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="mappingJacksonHttpMessageConverter" />   <!-- JSON转换器 -->
</list>
</property>
</bean>

<bean id="stringHttpMessageConverter" class="org.springframework.http.converter.StringHttpMessageConverter">
<constructor-arg value="UTF-8" index="0"></constructor-arg><!--  避免出现乱码 -->
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
<value>application/json;charset=UTF-8</value>
</list>
</property>
</bean>

<!-- 文件下载 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 默认编码 -->
<property name="defaultEncoding" value="utf-8" />
<!-- 文件大小最大值 -->
<property name="maxUploadSize" value="10485760000" />
<!-- 内存中的最大值 -->
<property name="maxInMemorySize" value="2048" />
</bean>

<import resource="classpath:spring-ds.xml" />

</beans>

数据库连接配置

配置jdbc.properties

#jdbc
jdbc.driver=com.mysql.jdbc.Driver
jdbc.username=root
jdbc.password=1234
jdbc.url=jdbc:mysql://127.0.0.1:3306/mydatabase?useUnicode=true&characterEncoding=utf-8

initialSize=0
maxActive=20
maxIdle=20
minIdle=1
maxWait=60000

配置spring-ds.xml

<?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:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- JDBC配置 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<!-- 初始化连接大小 -->
<property name="initialSize" value="${initialSize}"></property>
<!-- 连接池最大数量 -->
<property name="maxActive" value="${maxActive}"></property>
<!-- 连接池最大空闲 -->
<property name="maxIdle" value="${maxIdle}"></property>
<!-- 连接池最小空闲 -->
<property name="minIdle" value="${minIdle}"></property>
<!-- 获取连接最大等待时间 -->
<property name="maxWait" value="${maxWait}"></property>
</bean>

<!-- mybatis 配置 SQLSession模板 -->
<bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate"
scope="prototype">
<constructor-arg index="0" ref="sqlSessionFactory" />
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml" />
<!--扫描mapper文件留个地方-->
<property name="mapperLocations" >
<list>
<value>classpath:mybatis/mapper/**/*.xml</value>
</list>
</property>
</bean>

<!-- spring与mybatis整合配置，扫描所有dao -->
<bean id="mybatisMapper" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.demo.dao.**" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>

<!--spring 的JDBC模板 -->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource">
</property>
</bean>

<!-- 事务配置 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>

mybatis配置

在resource目录下创建mybatis目录。然后创建mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<properties>
<property name="dialect" value="MYSQL"/>
</properties>

<settings>
<setting name="cacheEnabled" value="false" />
<setting name="lazyLoadingEnabled" value="true" />
<setting name="multipleResultSetsEnabled" value="true" />
<setting name="useColumnLabel" value="true" />
<setting name="defaultExecutorType" value="SIMPLE" />
<!-- 默认全局超时都设置成30秒 -->
<setting name="defaultStatementTimeout" value="30"/>
</settings>
</configuration>

在resource/mybatis目录下创建mapper目录， mybatis相关mapper文件放在resource/mybatis/mapper目录下。

这里推荐使用mybatis_generator插件生成数据库对应的mybatis的mapper文件和实体类

简单的generator配置文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>
<classPathEntry location="C:\Users\Desktop\mybatis\mysql-connector-java-5.1.26.jar" />
<context id="MysqlContext" targetRuntime="MyBatis3" defaultModelType="flat">

<commentGenerator>
<property name="suppressAllComments" value="true"/>
<property name="suppressDate" value="true"/>
</commentGenerator>
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://127.0.0.1:3306/myDatabase"
userId="root"
password="1234">
</jdbcConnection>

<javaModelGenerator targetPackage="com.demo.entity" targetProject="java">
<property name="trimStrings" value="true" />
</javaModelGenerator>

<sqlMapGenerator targetPackage="user"  targetProject="resources/mybatis"/>

<!--生成Dao文件 可以配置 type="XMLMAPPER"生成xml的dao实现  context id="DB2Tables" 修改targetRuntime="MyBatis3"  -->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.demo.dao" targetProject="java">
<property name="enableSubPackages" value="true"/>
</javaClientGenerator>

<table tableName="user" domainObjectName="User">
<generatedKey column="id" sqlStatement="Mysql" identity="true"/>
</table>
</context>
</generatorConfiguration>

建议：工具生成的文件最好不用动，表字段如果有更新直接覆盖文件，如果需要手写sql，最好把自己新增的sql创建一个新文件 xxxxMapper_extend.xml，然后在里面写，对应的DAO也用一个新的dao继承原来工具创建的DAO。

这里我创建一个user表，用工具生成对应的文件，文件结构如下，UserMapper即DAO



然后配置log4j

log4j.rootLogger = DEBUG, Console
log4j.appender.A = org.apache.log4j.ConsoleAppender
log4j.appender.A.Target = System.out
log4j.appender.A.layout = org.apache.log4j.PatternLayout
log4j.appender.A.layout.ConversionPattern = %p %t %c - %m%n

log4j.appender.B = org.apache.log4j.DailyRollingFileAppender
log4j.appender.B.File = logs/log.log
log4j.appender.B.Append = true
log4j.appender.B.Threshold = DEBUG
log4j.appender.B.layout = org.apache.log4j.PatternLayout
log4j.appender.B.layout.ConversionPattern = %p %t %c - %m%n

log4j.appender.C = org.apache.log4j.DailyRollingFileAppender
log4j.appender.C.File = logs/error.log
log4j.appender.C.Append = true
log4j.appender.C.Threshold = ERROR
log4j.appender.C.layout = org.apache.log4j.PatternLayout
log4j.appender.C.layout.ConversionPattern =%p %t %c - %m%n

#Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n

log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=INFO
log4j.logger.java.sql.Connection=INFO
log4j.logger.java.sql.Statement=INFO
log4j.logger.java.sql.PreparedStatement=INFO

创建一个简单的demo

1.创建service接口&实现类

public interface UserService {
Object doAddUser(User user);
}

@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserMapper userMapper;

public Object doAddUser(User user) {
userMapper.insertSelective(user);
return user;
}
}

2.创建controller

@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private UserService userService;

@ResponseBody
@RequestMapping("/addUser")
public Object addUser(String name){
User user = new User();
user.setName(name);
user = (User) userService.doAddUser(user);
return user;

}
}

3.修改默认的index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>test</title>
</head>
<body>
<h2>

用户名：<input type="text" value="" id="name"> <input type="button" id="add" value="测试添加"></br>
<span id="result"></span>
</h2>
</body>
<script type="text/javascript" src="/js/jquery-1.10.2.js"></script>

<script type="text/javascript">
$('#add').click(function () {
$.ajax({
url:'/user/addUser',
type:'post',
data:{
name:$('#name').val()
},
dataType:'json',
success:function (data) {
$('#result').html('添加成功，用户ID：'+data.id);
}
})
})

</script>
</html>

这里我加入了jquery.js ，你们自己下一个加进去。

配置tomcat

效果

项目已上传至github：https://github.com/StoneKings/Base_web_SM.git