搭建基于SpringMVC+MyBatis+Maven的web项目

一 开发前准备

1.1 开发环境

Jdk1.6

MyEclipse 10

Tomcat7

MySQL5

1.2 创建表

CREATE TABLE `user` (

`ID` int(11) NOT NULL AUTO_INCREMENT,

`NAME` char(30) NOT NULL,

`PASSWORD` char(30) NOT NULL,

PRIMARY KEY (`ID`),

KEY `IDX_NAME` (`NAME`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8

1.3 插入测试数据

INSERT INTO user (ID, NAME, PASSWORD) VALUES (1, 'admin', '123456');

INSERT INTO user (ID, NAME, PASSWORD) VALUES (2, '张三', '88888');

INSERT INTO user (ID, NAME, PASSWORD) VALUES (3, '李四', 'asdf@qq.com');

二 创建项目

File->New->Other







添加文件夹

src/main/java

src/main/resources

src/test/java

src/test/resources



检查以下3处的jdk版本，保持一致

三 配置POM文件

<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.kitty</groupId>

<artifactId>test</artifactId>

<version>0.0.1-SNAPSHOT</version>

<packaging>war</packaging>

<properties>

<!-- spring版本号 -->

<spring.version>3.2.8.RELEASE</spring.version>

<!-- log4j日志文件管理包版本 -->

<slf4j.version>1.6.6</slf4j.version>

<log4j.version>1.2.12</log4j.version>

<!-- junit版本号 -->

<junit.version>4.10</junit.version>

<!-- mybatis版本号 -->

<mybatis.version>3.2.1</mybatis.version>

</properties>

<dependencies>

<!-- 添加Spring依赖 -->

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-core</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-webmvc</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-context</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-context-support</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-aop</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-aspects</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-tx</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-jdbc</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-web</artifactId>

<version>${spring.version}</version>

</dependency>

<!--单元测试依赖 -->

<dependency>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

<version>${junit.version}</version>

<scope>test</scope>

</dependency>

<!-- log4j -->

<dependency>

<groupId>log4j</groupId>

<artifactId>log4j</artifactId>

<version>${log4j.version}</version>

</dependency>

<dependency>

<groupId>org.slf4j</groupId>

<artifactId>slf4j-api</artifactId>

<version>${slf4j.version}</version>

</dependency>

<dependency>

<groupId>org.slf4j</groupId>

<artifactId>slf4j-log4j12</artifactId>

<version>${slf4j.version}</version>

</dependency>

<!--spring单元测试依赖 -->

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-test</artifactId>

<version>${spring.version}</version>

<scope>test</scope>

</dependency>

<!--mybatis -->

<dependency>

<groupId>org.mybatis</groupId>

<artifactId>mybatis</artifactId>

<version>${mybatis.version}</version>

</dependency>

<!-- mybatis/spring包 -->

<dependency>

<groupId>org.mybatis</groupId>

<artifactId>mybatis-spring</artifactId>

<version>1.2.0</version>

</dependency>

<!-- mysql驱动包 -->

<dependency>

<groupId>mysql</groupId>

<artifactId>mysql-connector-java</artifactId>

<version>5.1.29</version>

</dependency>

<!-- dbcp数据库连接池 -->

<dependency>

<groupId>commons-dbcp</groupId>

<artifactId>commons-dbcp</artifactId>

<version>1.2.2</version>

</dependency>

<!-- javaee-api包 注意和项目使用的JDK版本对应 -->

<dependency>

<groupId>javax</groupId>

<artifactId>javaee-api</artifactId>

<version>6.0</version>

<scope>provided</scope>

</dependency>

<!-- javaee-web-api包 注意和项目使用的JDK版本对应 -->

<dependency>

<groupId>javax</groupId>

<artifactId>javaee-web-api</artifactId>

<version>6.0</version>

<scope>provided</scope>

</dependency>

<dependency>

<groupId>com.fasterxml.jackson.core</groupId>

<artifactId>jackson-databind</artifactId>

<version>2.7.4</version>

</dependency>

<dependency>

<groupId>com.fasterxml.jackson.core</groupId>

<artifactId>jackson-core</artifactId>

<version>2.7.4</version>

</dependency>

<dependency>

<groupId>com.fasterxml.jackson.core</groupId>

<artifactId>jackson-annotations</artifactId>

<version>2.7.4</version>

</dependency>

</dependencies>

</project>

四 Spring与MyBatis集成

Spring配置文件application.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"

xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"

xmlns:jee="http://www.springframework.org/schema/jee" xmlns:p="http://www.springframework.org/schema/p"

xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-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/util http://www.springframework.org/schema/util/spring-util-3.1.xsd">
<!-- 自动扫描注解的bean -->

<context:component-scan base-package="com.kitty.service" />

<!-- =================DBCP连接池================= -->

<!-- 配置数据源 -->

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"

destroy-method="close">

<property name="driverClassName" value="com.mysql.jdbc.Driver" />

<property name="url" value="jdbc:mysql://localhost:3306/test" />

<property name="username" value="root" />

<property name="password" value="root" />

<!-- 可同时连接的最大的连接数 -->

<property name="maxActive" value="60" />

<!-- 最大的空闲的连接数 -->

<property name="maxIdle" value="60" />

<!-- 最小的空闲的连接数，低于这个数量会被创建新的连接，默认为0 -->

<property name="minIdle" value="5" />

<!-- 连接池启动时创建的初始化连接数量，默认值为0 -->

<property name="initialSize" value="1" />

<!-- 等待连接超时时间，毫秒，默认为无限 -->

<property name="maxWait" value="30000" />

</bean>

<!-- 配置mybatis工厂 -->

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

<!-- 数据源 -->

<property name="dataSource" ref="dataSource" />

<!-- mapperLocations配置**Mapper.xml文件位置 -->

<property name="mapperLocations" value="classpath*:com/kitty/mapper/**/*.xml" />

</bean>

<!-- 配置mapper对应的dao和mybatis工厂 -->

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

<property name="basePackage" value="com.kitty.dao" />

<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />

</bean>

</beans>

Model层user.java

package com.kitty.model;

public class User {

private Integer id;

private String name;

private String password;

public Integer getId() {

return id;

}

public void setId(Integer Id) {

this.id = Id;

}

public String getName() {

return name;

}

public void setName(String Name) {

this.name = Name;

}

public String getPassword() {

return password;

}

public void setPassword(String Password) {

this.password = Password;

}

}

Dao层UserDao.java

package com.kitty.dao;

import com.kitty.model.User;

public interface UserDao {

public User selectUserById(Integer userId);

}

MyBatis配置映射文件mapper.xml

<?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.kitty.dao.UserDao">

<!--设置model类和数据库中表的字段一一对应 -->

<resultMap id="BaseResultMap" type="com.kitty.model.User">

<id column="ID" property="id" jdbcType="INTEGER" />

<result column="NAME" property="name" jdbcType="CHAR" />

<result column="PASSWORD" property="password" jdbcType="CHAR" />

</resultMap>

<!-- 查询单条记录 -->

<select id="selectUserById" parameterType="int" resultMap="BaseResultMap">

SELECT * FROM user WHERE ID = #{userId}

</select>

</mapper>

Service层接口UserService.java

package com.kitty.service;

import com.kitty.model.User;

public interface UserService {

User selectUserById(Integer userId);

}

Service层实现类UserServiceImpl.java

package com.kitty.service;

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

import org.springframework.stereotype.Service;

import com.kitty.dao.UserDao;

import com.kitty.model.User;

@Service

public class UserServiceImpl implements UserService{

@Autowired

private UserDao userDao;

public User selectUserById(Integer userId) {

return userDao.selectUserById(userId);

}

}

五 集成SpringMVC

Web项目配置文件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_2_5.xsd"
id="WebApp_ID" version="2.5">

<!-- 默认页面 -->

<welcome-file-list>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>

<!-- 根目录 -->

<context-param>

<param-name>webAppRootKey</param-name>

<param-value>webapp.root</param-value>

</context-param>

<!-- Spring配置文件 -->

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>classpath:application.xml</param-value>

</context-param>

<!-- 启动Web容器时，自动装配ApplicationContext.xml的配置信息 -->

<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

<!-- spring处理中文乱码的一个过滤器配置 -->

<filter>

<filter-name>SpringEncodingFilter</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>

<init-param>

<param-name>forceEncoding</param-name>

<param-value>true</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>SpringEncodingFilter</filter-name>

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

</filter-mapping>

<!-- Log4j 日志文件存放位置设置 -->

<context-param>

<param-name>log4jConfigLocation</param-name>

<param-value>classpath:log4j.properties</param-value>

</context-param>

<!-- 扫描log4j的配置文件周期 -->

<context-param>

<param-name>log4jRefreshInterval</param-name>

<param-value>60000</param-value>

</context-param>

<listener>

<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>

</listener>

<!-- 前置控制器，把拦截下来的请求，依据相应的规则分发到目标Controller来处理 -->

<servlet>

<servlet-name>dispatcherServlet</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<!-- 指定上下文的位置 -->

<init-param>

<param-name>contextConfigLocation</param-name>

<param-value>classpath:spring-mvc.xml</param-value>

</init-param>

<!-- 启动容器时初始化该Servlet -->

<load-on-startup>1</load-on-startup>

</servlet>

<!-- 前置控制器设置为拦截所有请求 -->

<servlet-mapping>

<servlet-name>dispatcherServlet</servlet-name>

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

</servlet-mapping>

</web-app>

SpringMVC配置文件spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:p="http://www.springframework.org/schema/p" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:context="http://www.springframework.org/schema/context"

xmlns:mvc="http://www.springframework.org/schema/mvc"

xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<!-- 扫描controller（controller层注入） -->

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

<!-- 对模型视图添加前后缀 -->

<bean id="viewResolver"

class="org.springframework.web.servlet.view.InternalResourceViewResolver"

p:prefix="/WEB-INF/view/" p:suffix=".jsp" />

</beans>

日志配置文件log4j.properties

log4j.rootLogger=DEBUG,Console,Stdout

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=DEBUG

log4j.logger.java.sql.Statement=DEBUG

log4j.logger.java.sql.PreparedStatement=DEBUG

log4j.appender.Stdout = org.apache.log4j.DailyRollingFileAppender

log4j.appender.Stdout.File = ${webapp.root}/WEB-INF/logs/sample.log

log4j.appender.Stdout.Append = true

log4j.appender.Stdout.Threshold = DEBUG

log4j.appender.Stdout.layout = org.apache.log4j.PatternLayout

log4j.appender.Stdout.layout.ConversionPattern =%-d{yyyy-MM-dd HH\:mm\:ss} [ %t\:%r ] - [ %p ] %m%n

Controller层UserController.java

package com.kitty.controller;

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

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.servlet.ModelAndView;

import com.kitty.model.User;

import com.kitty.service.UserService;

@Controller

public class UserController {

@Autowired

private UserService userService;

@RequestMapping("/")

public ModelAndView getIndex(){

ModelAndView mav = new ModelAndView("index");

User user = userService.selectUserById(1);

mav.addObject("user", user);

return mav;

}

}

View层index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<html>

<body>

${user.id}<br>

${user.name}<br>

${user.password}<br>

</body>

</html>

六 测试

整个项目文件结构如下



打开浏览器访问http://localhost:8080/test/

访问结果