maven构建springmvc+mybaits简单例子

我们创建一个maven项目（maven-archetype-webapp）

修改该要的目录结构，然后修改pom.xml,加入依赖包如下：

<dependencies>
		 <dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.10</version>
			<scope>test</scope>
		</dependency> 
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>3.2.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.22</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>3.2.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>3.2.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-tx</artifactId>
			<version>3.2.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>3.2.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>3.2.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>3.2.7</version>
		</dependency>
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>1.2.2</version>
		</dependency>
		<dependency>
			<groupId>org.aspectj</groupId>
			<artifactId>aspectjweaver</artifactId>
			<version>1.8.1</version>
		</dependency>
		<dependency>
			<groupId>org.codehaus.jackson</groupId>
			<artifactId>jackson-core-asl</artifactId>
			<version>1.9.2</version>
		</dependency>
		<dependency>
			<groupId>org.codehaus.jackson</groupId>
			<artifactId>jackson-mapper-asl</artifactId>
			<version>1.9.2</version>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>3.1.0</version>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>1.2.16</version>
		</dependency>
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.2.1</version>
		</dependency>
                <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.7</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.1.37</version>
        </dependency>

		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.1.0</version>
		</dependency>
		<dependency>
		      <groupId>taglibs</groupId>
		      <artifactId>standard</artifactId>
		      <version>1.1.0</version>
	    </dependency>
	</dependencies>

创建需要的包：

com.cwh.model
com.cwh.dao
com.cwh.controller
com.cwh.service
com.cwh.service.impl
com.cwh.mapper

创建持久类：user

package com.cwh.model;

import java.io.Serializable;
import java.util.List;

public class User implements Serializable{
	private Integer id;

	private String username;

	private String password;

	private Integer age;


	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getUsername() {
		return username;
	}

	public void setUsername(String username) {
		this.username = username == null ? null : username.trim();
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password == null ? null : password.trim();
	}

	public Integer getAge() {
		return age;
	}

	public void setAge(Integer age) {
		this.age = age;
	}
}

资源文件统一放在resource目录下
创建连接数据库等资源文件：


hibernate.dialect=org.hibernate.dialect.MySQLDialect
driverClassName=com.mysql.jdbc.Driver
validationQuery=SELECT 1
jdbc_url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
jdbc_username=root
jdbc_password=


hibernate.hbm2ddl.auto=update
hibernate.show_sql=false
hibernate.format_sql=true

sessionInfoName=sessionInfo

uploadFieldName=filedata
uploadFileMaxSize=20971520
uploadFileExts=txt,rar,zip,doc,docx,xls,xlsx,jpg,jpeg,gif,png,swf,wmv,avi,wma,mp3,mid
uploadDirectory=attached

接下来创建spring的配置文件：

<?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-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
">

    <!-- 引入属性文件 -->
    <context:property-placeholder location="classpath:config.properties" />

    <!-- 自动扫描(自动注入) -->
    <context:component-scan base-package="com.cwh.service" />


</beans>

配置springmvc：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    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">

	<!-- 启用spring mvc 注解 -->
	<mvc:annotation-driven />
	<!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->  
	<context:component-scan base-package="com.cwh.controller" />
	
	  <!-- 静态资源访问，不如访问不了jsp  -->
	<mvc:resources mapping="/static/**" location="/WEB-INF/static/"/> 
	<!-- 静态资源 -->
	<mvc:default-servlet-handler/> 
	

	<!-- 对模型视图名称的解析，即在模型视图名称添加前后缀 -->
	 <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
	        <property name="prefix">
	            <value>/WEB-INF/pages/</value>
	        </property>
	        <property name="suffix">
	            <value>.jsp</value>
	        </property>
	    </bean>
	

</beans>

注意下：

<mvc:default-servlet-handler />

代表着访问项目根路径localhost的话，spring会直接返回index.jsp，如果index.jsp不存在的话，则会返回相应的controller所返回的页面。

相反，如果没有这句配置

<mvc:default-servlet-handler />

则代表着访问项目根路径localhost的话，会返回相应的controller所返回的页面，就与web.xml配置的weilcome-file-list无关了。

还有就是

<context:component-scan base-package="com.cwh.controller" />

这个自动扫描的包要写对，这样使SpringMVC认为包下用了@controller注解的类是控制器

好了下了配置mybatis

<?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" 
xmlns:aop="http://www.springframework.org/schema/aop" 
xsi:schemaLocation="
http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
">


	<!-- 配置数据源 -->
	<bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
		<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="0" />
		<!-- 连接池最大使用连接数量 -->
		<property name="maxActive" value="20" />
		<!-- 连接池最大空闲 -->
		<property name="maxIdle" value="20" />
		<!-- 连接池最小空闲 -->
		<property name="minIdle" value="0" />
		<!-- 获取连接最大等待时间 -->
		<property name="maxWait" value="60000" />


		<property name="validationQuery" value="${validationQuery}" />
		<property name="testOnBorrow" value="false" />
		<property name="testOnReturn" value="false" />
		<property name="testWhileIdle" value="true" />

		<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
		<property name="timeBetweenEvictionRunsMillis" value="60000" />
		<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
		<property name="minEvictableIdleTimeMillis" value="25200000" />

		<!-- 打开removeAbandoned功能 -->
		<property name="removeAbandoned" value="true" />
		<!-- 1800秒，也就是30分钟 -->
		<property name="removeAbandonedTimeout" value="1800" />
		<!-- 关闭abanded连接时输出错误日志 -->
		<property name="logAbandoned" value="true" />

		<!-- 监控数据库 -->
		<!-- <property name="filters" value="stat" /> -->
		<property name="filters" value="mergeStat" />
	</bean>

	<!-- myBatis文件 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<!-- 自动扫描entity目录, 省掉Configuration.xml里的手工配置 -->
		<property name="mapperLocations" value="classpath:com/cwh/mapper/*.xml" />
	</bean>

	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.cwh.dao" />
		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
	</bean>

	<!-- 配置事务管理器 -->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>

	<!-- 注解方式配置事物 -->
	<!-- <tx:annotation-driven transaction-manager="transactionManager" /> -->

	<!-- 拦截器方式配置事物 -->
	<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.cwh.service..*Impl.*(..))" />
		<aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" />
	</aop:config>



</beans>

下来修改web.xml:

<?xml version="1.0" encoding="UTF-8" ?> 
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>mybatis</display-name> 
	<context-param>
	  <param-name>contextConfigLocation</param-name> 
	  <param-value>classpath:spring.xml,classpath:spring-mybatis.xml</param-value> 
  	</context-param>
	<filter>
	  <description>字符集过滤器</description> 
	  <filter-name>encodingFilter</filter-name> 
	  <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> 
	<init-param>
	  <description>字符集编码</description> 
	  <param-name>encoding</param-name> 
	  <param-value>UTF-8</param-value> 
	  </init-param>
	  </filter>
	<filter-mapping>
	  <filter-name>encodingFilter</filter-name> 
	  <url-pattern>/</url-pattern> 
	  </filter-mapping>
	<listener>
	  <description>spring监听器</description> 
	  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 
	  </listener>
	   <!--  防止spring内存溢出监听器  --> 
	<listener>
	  <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> 
	  </listener> 
	  <!--  spring mvc servlet  -->  
	  <servlet>
	  <description>spring mvc servlet</description> 
	  <servlet-name>springMvc</servlet-name> 
	  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
	   <init-param>
	  <description>spring mvc 配置文件</description> 
	  <param-name>contextConfigLocation</param-name> 
	  <param-value>classpath:spring-mvc.xml</param-value> 
	  </init-param>
	  <load-on-startup>1</load-on-startup> 
	  </servlet>
	 <servlet-mapping>
	  <servlet-name>springMvc</servlet-name> 
	  <url-pattern>/</url-pattern> 
	  </servlet-mapping>
	 <welcome-file-list>
	  <welcome-file>/index.jsp</welcome-file> 
	  </welcome-file-list>
	 <!--  配置session超时时间，单位分钟 --> 
	 <session-config>
	  <session-timeout>15</session-timeout> 
	  </session-config>
 </web-app>

这里注意下

<url-pattern>/</url-pattern>

不要把它写成/*，不然访问controlde的时候会报404

创建mybatis数据库操作文件（放mapper包下）：简单的一个查询

<?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.cwh.dao.UserMapper">
    <cache readOnly="true"/>
    
	<resultMap id="BaseResultMap" type="com.ssmm.model.User">
		<id column="id" property="id" jdbcType="INTEGER" />
		<result column="username" property="username" jdbcType="VARCHAR" />
		<result column="password" property="password" jdbcType="VARCHAR" />
		<result column="age" property="age" jdbcType="INTEGER" />
	</resultMap>


	<sql id="Base_Column_List">
		id, username, password, age
	</sql>
	<select id="selectByPrimaryKey" resultMap="BaseResultMap"
		parameterType="java.lang.Integer">
		select
		<include refid="Base_Column_List" />
		from user
		where id = #{id,jdbcType=INTEGER}
	</select>
	
</mapper>

注意下：

<mapper namespace="com.cwh.dao.UserMapper">

这个对应dao下的接口

接下来创建dao映射mapper接口：

package com.cwh.dao;
import com.cwh.model.User;


public interface UserMapper {

    User selectByPrimaryKey(Integer id);
}

创建service：

package com.cwh.service.impl;

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

import com.cwh.dao.UserMapper;
import com.cwh.model.User;
import com.cwh.service.UserService;


@Service("userService")
public class UserServiceImpl implements UserService {
	@Autowired
	private UserMapper userMapper;

	public UserMapper getUserMapper() {
		return userMapper;
	}

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

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


}

好了最后一步写个简单control：

package com.cwh.controller;


import java.util.HashMap;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import com.cwh.model.User;
import com.cwh.service.UserService;


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

	public UserService getUserService() {
		return userService;
	}

	public void setUserService(UserService userService) {
		this.userService = userService;
	}


	@RequestMapping(value = "/{id}", method = RequestMethod.GET)
	public @ResponseBody
	User showOneUser(@PathVariable("id") int id) {

		return userService.getUserById(id);
	}
	@RequestMapping("/index")
	public ModelAndView index(HttpServletRequest request,HttpServletResponse response){
		HashMap<String, Object>map = new HashMap<String, Object>();
		map.put("a", 111);
		return new ModelAndView("MyJsp").addObject("map",map);
		
	}
}

好了部署上tomcat,大功告成

这是基本的开发框架搭建，下面可根据需要进行功能扩展，也就是搬砖啦

posted @ 2016-05-16 16:24 menco 阅读(10) 评论(0) 收藏举报

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menco

maven构建springmvc+mybaits简单例子

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