SSM整合（带demo）

最简单的SSM整合有没有
SSM整合多种多样，这里写的是spring托管SqlSessionFactoryBean的这种。。。。。。反正就是那个意思

首先搭建项目，看这里有
搭建好之后勒就是各种配置，各种整合了

首先是我们的目录，就是这样了

最简单的mapper，就只有一条语句

<mapper namespace="com.fei.app.dao.IUserDao">
    <resultMap id="BaseResultMap" type="com.fei.app.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="findUserById" resultMap="BaseResultMap" parameterType="java.lang.Integer">
        select
        <include refid="Base_Column_List"/>
        from user
        where id = #{id,jdbcType=INTEGER}
    select>
mapper>

最简单的dao

package com.fei.app.dao;

import com.fei.app.model.User;

/**
 * Created by fei on 2015/9/17.
 */

public interface IUserDao {
    User findUserById(Integer id);
}

最简单的user

package com.fei.app.model;

/**
 * Created by fei on 2015/9/17.
 */
public class User {
    private Integer id;
    private String userName;
    private String password;
    private Integer age;
    ....此处省去get set

log4j.properties，网上随便找的

#定义LOG输出级别
log4j.rootLogger=INFO,Console,File
#定义日志输出目的地为控制台
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
#可以灵活地指定日志输出格式，下面一行是指定具体的格式
log4j.appender.Console.layout = org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n

#文件大小到达指定尺寸的时候产生一个新的文件
log4j.appender.File = org.apache.log4j.RollingFileAppender
#定义文件最大大小
log4j.appender.File.MaxFileSize = 10MB
# 输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志
log4j.appender.File.Threshold = ALL
log4j.appender.File.layout = org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n

两个配置文件
spring-mybatis

<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: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-3.1.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd
                        http://www.springframework.org/schema/mvc
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
    <context:component-scan base-package="com.fei.app" />
    
    <bean id="mysqlSource" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location" value="classpath:mysqlConf.properties">property>
    bean>
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="${driver}" />
        <property name="url" value="${url}" />
        <property name="username" value="${username}" />
        <property name="password" value="${password}" />
    bean>

    
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="mapperLocations" value="classpath:mapper/*.xml" />
    bean>

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

    
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    bean>
beans>

springmvc

<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: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-3.1.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd
                        http://www.springframework.org/schema/mvc
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
    <context:component-scan base-package="com.fei.app.*"/>
    
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    bean>
beans>

mysql的配置还是出来吧

driver=com.mysql.jdbc.Driver
url=jdbc:mysql:///test
username=root
password=root

接下来写个service

package com.fei.app.service.impl;

import com.fei.app.dao.IUserDao;
import com.fei.app.model.User;
import com.fei.app.service.IUserService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;

/**
 * Created by fei on 2015/9/17.
 */
@Service
public class UserServiceImpl implements IUserService {
    @Resource
    private IUserDao userDao;

    public User findUserById(Integer id) {
        return userDao.findUserById(id);
    }
}

package com.fei.app.service;

import com.fei.app.model.User;

/**
 * Created by fei on 2015/9/17.
 */
public interface IUserService {
    User findUserById(Integer id);
}

web.xml

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://java.sun.com/xml/ns/javaee"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
  <display-name>Archetype Created Web Applicationdisplay-name>
    
    <context-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>classpath:springMybatis.xmlparam-value>
    context-param>
    
    <servlet>
        <servlet-name>SpringMVCservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:springmvc.xmlparam-value>
        init-param>
        <load-on-startup>1load-on-startup>
        <async-supported>trueasync-supported>
    servlet>
    <servlet-mapping>
        <servlet-name>SpringMVCservlet-name>
        
        <url-pattern>/url-pattern>
    servlet-mapping>
    
    <filter>
        <filter-name>encodingFilterfilter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
        <async-supported>trueasync-supported>
        <init-param>
            <param-name>encodingparam-name>
            <param-value>UTF-8param-value>
        init-param>
    filter>
    <filter-mapping>
        <filter-name>encodingFilterfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>
    
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>
    
    <listener>
        <listener-class>org.springframework.web.util.IntrospectorCleanupListenerlistener-class>
    listener>
    <welcome-file-list>
        <welcome-file>/index.jspwelcome-file>
    welcome-file-list>
web-app>

接下来写个jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<html>
  <head>
    <title>testtitle>
  head>
  <body>
    ${user.userName}
  body>
html>

项目搞定了，就是这样的，中间有问题的看看log，都能解决
这种搭建方式我认为比较好的，比较直观

demo在这里demo