SSM整合案例

SSM整合案例

@(Spring)[spring, springmvc, mybatis, ssm整合, Spring]

导入依赖

这里使用Maven导入Jar包。

    <properties>
        <spring.version>4.2.4.RELEASEspring.version>
        <mysql.version>5.1.32mysql.version>
        <dbcp.version>1.4dbcp.version>
        <mybatis.version>3.3.0mybatis.version>
        <mybatis-spring.version>1.2.3mybatis-spring.version>
        <slf4j.version>1.7.5slf4j.version>
        <javassist.version>3.16.1-GAjavassist.version>
        <cglib.version>2.2.2cglib.version>
        <junit.version>4.10junit.version>
        <servlet.version>2.5servlet.version>
        <jsp.version>2.0jsp.version>
        <jstl.version>1.2jstl.version>
    properties>
    <dependencies>
        
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webmvcartifactId>
            <version>${spring.version}version>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-aspectsartifactId>
            <version>${spring.version}version>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-ormartifactId>
            <version>${spring.version}version>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-testartifactId>
            <version>${spring.version}version>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-context-supportartifactId>
            <version>${spring.version}version>
        dependency>

        
        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
            <version>${mysql.version}version>
        dependency>

        
        <dependency>
            <groupId>commons-dbcpgroupId>
            <artifactId>commons-dbcpartifactId>
            <version>${dbcp.version}version>
        dependency>

        
        <dependency>
            <groupId>org.mybatisgroupId>
            <artifactId>mybatisartifactId>
            <version>${mybatis.version}version>
        dependency>
        <dependency>
            <groupId>org.mybatisgroupId>
            <artifactId>mybatis-springartifactId>
            <version>${mybatis-spring.version}version>
        dependency>

        
        <dependency>
            <groupId>org.slf4jgroupId>
            <artifactId>slf4j-apiartifactId>
            <version>${slf4j.version}version>
        dependency>
        <dependency>
            <groupId>org.slf4jgroupId>
            <artifactId>slf4j-log4j12artifactId>
            <version>${slf4j.version}version>
        dependency>


        
        <dependency>
            <groupId>org.javassistgroupId>
            <artifactId>javassistartifactId>
            <version>${javassist.version}version>
        dependency>
        <dependency>
            <groupId>cglibgroupId>
            <artifactId>cglibartifactId>
            <version>${cglib.version}version>
        dependency>

        
        <dependency>
            <groupId>junitgroupId>
            <artifactId>junitartifactId>
            <version>${junit.version}version>
            <scope>testscope>
        dependency>

        
        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>servlet-apiartifactId>
            <version>${servlet.version}version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>jsp-apiartifactId>
            <version>${jsp.version}version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>jstlartifactId>
            <version>${jstl.version}version>
        dependency>
    dependencies>

创建MyBatis配置文件

文件放在classpath目录下，文件名为：SqlMapConfig.xml

<configuration>
    
configuration>

创建Spring Dao配置文件

文件放在classpath目录下，文件名为：applicationContext_dao.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    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:xsi="http://www.w3.org/2001/XMLSchema-instance"
    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
                        http://www.springframework.org/schema/aop 
                        http://www.springframework.org/schema/aop/spring-aop.xsd 
                        http://www.springframework.org/schema/tx 
                        http://www.springframework.org/schema/tx/spring-tx.xsd">

    
    <context:property-placeholder location="classpath:db.properties" />
    
    <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}" />
        <property name="maxActive" value="10" />
        <property name="maxIdle" value="5" />
    bean>

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

    
    
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.pc.ssm.dao" />
    bean>
beans>

提供数据库配置文件

文件放在classpath目录下，文件名为：db.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost/myssm?useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456

提供日志配置文件

文件放在classpath目录下，文件名为：log4j.properties

# Global logging configuration
log4j.rootLogger=DEBUG, stdout
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

创建Spring Service配置文件

文件放在classpath目录下，文件名为：applicationContext_service.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    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:xsi="http://www.w3.org/2001/XMLSchema-instance"
    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
                        http://www.springframework.org/schema/aop 
                        http://www.springframework.org/schema/aop/spring-aop.xsd 
                        http://www.springframework.org/schema/tx 
                        http://www.springframework.org/schema/tx/spring-tx.xsd">

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

beans>

创建Spring Transaction配置文件

文件放在classpath目录下，文件名为：applicationContext_transaction.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    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:xsi="http://www.w3.org/2001/XMLSchema-instance"
    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
                        http://www.springframework.org/schema/aop 
                        http://www.springframework.org/schema/aop/spring-aop.xsd 
                        http://www.springframework.org/schema/tx 
                        http://www.springframework.org/schema/tx/spring-tx.xsd">

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

    
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            
            <tx:method name="save*" propagation="REQUIRED" />
            <tx:method name="insert*" propagation="REQUIRED" />
            <tx:method name="delete*" propagation="REQUIRED" />
            <tx:method name="update*" propagation="REQUIRED" />
            <tx:method name="find*" propagation="SUPPORTS" read-only="true" />
            <tx:method name="get*" propagation="SUPPORTS" read-only="true" />
        tx:attributes>
    tx:advice>

    
    <aop:config>
        <aop:pointcut expression="execution(* com.pc.ssm.service.*.*(..))" id="txPointcut"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointcut" />
    aop:config>
beans>

配置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_2_5.xsd"
    version="2.5">
    <display-name>SSMIntegrationDemodisplay-name>
    <welcome-file-list>
        <welcome-file>index.jspwelcome-file>
        <welcome-file>index.htmlwelcome-file>
    welcome-file-list>
    
    <context-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>classpath:applicationContext_*.xmlparam-value>
    context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>

    
    <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>10load-on-startup>
    servlet>
    <servlet-mapping>
        <servlet-name>springmvcservlet-name>
        <url-pattern>*.actionurl-pattern>
    servlet-mapping>
web-app>

创建Spring MVC配置文件

<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:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
                        http://www.springframework.org/schema/beans/spring-beans.xsd
                        http://www.springframework.org/schema/mvc 
                        http://www.springframework.org/schema/mvc/spring-mvc.xsd
                        http://www.springframework.org/schema/context 
                        http://www.springframework.org/schema/context/spring-context.xsd">

    
    <context:component-scan base-package="com.pc.ssm.web.controller" />

    
    <mvc:annotation-driven />

    
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
        
        <property name="prefix" value="/WEB-INF/jsp/" />
        
        <property name="suffix" value=".jsp" />
    bean>
beans>

测试环境是否搭建成功

使用MyBatis生成器生成Mapper和POJO

使用mybatis-generator-core.jar生成UserMapper.java、UserMapper.xml、User.java、UserExample.java。

PS：怎么生成Mapper和POJO可以自行搜索。

UserService

package com.pc.ssm.service;

import java.util.List;

import com.pc.ssm.pojo.User;

/**
 * 用户Service层接口
 * 
 * @author Switch
 * @data 2017年1月11日
 * @version V1.0
 */
public interface UserService {
    /**
     * 获取所有用户信息
     * 
     * @return
     */
    List findAllUser();
}

UserServiceImpl

package com.pc.ssm.service.impl;

import java.util.List;

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

import com.pc.ssm.dao.UserMapper;
import com.pc.ssm.pojo.User;
import com.pc.ssm.service.UserService;

/**
 * 用户Service层接口实现类
 * 
 * @author Switch
 * @data 2017年1月11日
 * @version V1.0
 */
@Service
public class UserServiceImpl implements UserService {

    // 注入用户Mapper
    @Autowired
    private UserMapper userMapper;

    @Override
    public List findAllUser() {
        return userMapper.selectByExample(null);
    }

}

UserController

package com.pc.ssm.web.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.pc.ssm.pojo.User;
import com.pc.ssm.service.UserService;


/**
 * 用户控制器
 * 
 * @author Switch
 * @data 2017年1月11日
 * @version V1.0
 */
@Controller
@RequestMapping("/user")
public class UserController {
    // 注入用户Service
    @Autowired
    private UserService userService;

    @RequestMapping("/list")
    public String list(Model model) {
        List users = userService.findAllUser();
        model.addAttribute("users", users);
        return "list";
    }
}

list.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt"  prefix="fmt"%>

<html>
    <head>
        <meta charset="UTF-8">
        <title>用户列表title>
    head>
    <body style="margin: 0 auto; width: 800px;"> 
        <form action="${pageContext.request.contextPath}/user/findByCriteria.action" method="post">
            <table width="100%" border=1>
                <caption>查询条件caption>
                <tr>
                    <td><input type="submit" value="查询"/>td>
                tr>
            table>
        form>
        <table style="width: 88%;" border=1>
            <caption>用户列表caption>
            <tr>
                <td>用户编号td>
                <td>用户名td>
                <td>生日td>
                <td>性别td>
                <td>地址td>
                <td>操作td>
            tr>
            <c:forEach items="${users}" var="user">
                <tr>
                    <td>${user.id}td>
                    <td>${user.username}td>
                    <td><fmt:formatDate value="${user.birthday}" pattern="yyyy-MM-dd HH:mm:ss"/>td>
                    <td>
                        <c:choose>
                            <c:when test="${user.sex == 1}">男c:when>
                            <c:when test="${user.sex == 2}">女c:when>
                        c:choose>
                    td>
                    <td>${user.address}td>
                    <td><a href="${pageContext.request.contextPath}/user/showEdit.action?id=${user.id}">修改a>td>
                tr>
            c:forEach>
        table>
    body>
html>

输入http://localhost:8080/SSMIntegrationDemo/user/list.action，如下显示：

GitHub：SSMIntegrationDemo