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SSM(一)框架的整合

SSM(一)框架的整合

前言：

博主一直想找个机会来整理一下以前的学习笔记，最近刚好有时间，就索性以SSM框架为基础，然后逐步的集成一些博主在工作中常用的技术。

开发环境： 

系统：window7
IDE:Myeclipse2014
JDK版本：1.8
tomcat：8
maven：3.3

新建SSM项目：

myeclipse配置maven方式请自行百度，新建maven项目，选择webapp。

SSM(一)框架的整合

新建的项目目录基本机构

SSM(一)框架的整合

修改pom.xml文件

这里主要是整合过程，maven的讲解就不细说了。

<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/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.w3cjava</groupId>
	<artifactId>W3cJavaSSM</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>W3cJavaSSM</name>
	<url>http://www.w3cjava.com</url>
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<spring.version>4.1.4.RELEASE</spring.version>
		<jackson.version>2.5.0</jackson.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>3.8.1</version>
			<scope>test</scope>
		</dependency>
		      <!-- spring -->
		<dependency>
		    <groupId>org.springframework</groupId>
		    <artifactId>spring-core</artifactId>
		    <version>${spring.version}</version>
		</dependency>
		<dependency>
		    <groupId>org.springframework</groupId>
		    <artifactId>spring-beans</artifactId>
		    <version>${spring.version}</version>
		</dependency>
		<dependency>
		    <groupId>org.springframework</groupId>
		    <artifactId>spring-context</artifactId>
		    <version>${spring.version}</version>
		</dependency>
		<dependency>
		    <groupId>org.springframework</groupId>
		    <artifactId>spring-tx</artifactId>
		    <version>${spring.version}</version>
		</dependency>
		<dependency>
		    <groupId>org.springframework</groupId>
		    <artifactId>spring-web</artifactId>
		    <version>${spring.version}</version>
		</dependency>
		<dependency>
		    <groupId>org.springframework</groupId>
		    <artifactId>spring-test</artifactId>
		    <version>${spring.version}</version>
		    <scope>test</scope>
		</dependency>
		<!-- 使用SpringMVC需配置 -->
		<dependency>
		    <groupId>org.springframework</groupId>
		    <artifactId>spring-webmvc</artifactId>
		    <version>${spring.version}</version>
		</dependency>
		<!-- 关系型数据库整合时需配置 如hibernate jpa等 -->
		<dependency>
		    <groupId>org.springframework</groupId>
		    <artifactId>spring-orm</artifactId>
		    <version>${spring.version}</version>
		</dependency>
		<dependency>
		    <groupId>org.mybatis</groupId>
		    <artifactId>mybatis-spring</artifactId>
		    <version>1.2.4</version>
		</dependency>
		<!-- log4j -->
		<dependency>
		    <groupId>log4j</groupId>
		    <artifactId>log4j</artifactId>
		    <version>1.2.17</version>
		</dependency>
		<!-- mysql连接 -->
		<dependency>
		    <groupId>mysql</groupId>
		    <artifactId>mysql-connector-java</artifactId>
		    <version>5.1.34</version>
		</dependency>
		<dependency>
		    <groupId>org.mybatis</groupId>
		    <artifactId>mybatis</artifactId>
		    <version>3.3.1</version>
		</dependency>
		<dependency>
		    <groupId>com.alibaba</groupId>
		    <artifactId>druid</artifactId>
		    <version>1.0.18</version>
		</dependency>
		<!-- json -->
		<dependency>
		    <groupId>com.alibaba</groupId>
		    <artifactId>fastjson</artifactId>
		    <version>1.2.3</version>
		</dependency>
		<dependency>
		    <groupId>com.fasterxml.jackson.core</groupId>
		    <artifactId>jackson-annotations</artifactId>
		    <version>${jackson.version}</version>
		</dependency>
		<dependency>
		    <groupId>com.fasterxml.jackson.core</groupId>
		    <artifactId>jackson-core</artifactId>
		    <version>${jackson.version}</version>
		</dependency>
		<dependency>
		    <groupId>com.fasterxml.jackson.core</groupId>
		    <artifactId>jackson-databind</artifactId>
		    <version>${jackson.version}</version>
		</dependency>
		<!-- aop -->
		<dependency>
		    <groupId>org.aspectj</groupId>
		    <artifactId>aspectjweaver</artifactId>
		    <version>1.8.4</version>
		</dependency>
		<!-- servlet -->

		<dependency>
		    <groupId>javax.servlet</groupId>
		    <artifactId>jstl</artifactId>
		    <version>1.2</version>
		</dependency>
		<dependency>
		    <groupId>org.apache.commons</groupId>
		    <artifactId>commons-lang3</artifactId>
		    <version>3.4</version>
		</dependency>
		<!-- 上传文件 -->
		<dependency>
		    <groupId>commons-fileupload</groupId>
		    <artifactId>commons-fileupload</artifactId>
		    <version>1.3.1</version>
		</dependency>
	</dependencies>
    <build>
	<finalName>W3cJavaSSM</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
        </plugins>
    </build>  
</project>

Spring配置spring-context.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:jdbc="http://www.springframework.org/schema/jdbc"  
	xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:util="http://www.springframework.org/schema/util" xmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
		http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd
		http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd
		http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd"
	default-lazy-init="true">

    <!-- 加载配置属性文件 -->
	<context:property-placeholder ignore-unresolvable="true" location="classpath:w3cjava.properties" />
	
	<!-- 使用Annotation自动注册Bean，解决事物失效问题：在主容器中不扫描@Controller注解，在SpringMvc中只扫描@Controller注解。  -->
	<context:component-scan base-package="com.w3cjava"><!-- base-package 如果多个，用“,”分隔 -->
		<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
	</context:component-scan>
	
	<!-- 使用import的方式导入数据库模块配置文件 -->
	<import resource="mybatis.xml"/>
</beans>

Mybatis配置mybatis.xml

mybatis.xml在spring-context.xml中已公国import引入，之所以分开配置，主要是考虑到这个文件配置的主要是数据库相关的信息。一些文件配置的细节说明都在xml文件里有说明，就不细说了。

<?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-3.1.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd">
                        
                        
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
          init-method="init" destroy-method="close">
        <!-- 指定连接数据库的驱动 -->
        <property name="driverClassName" value="${jdbc.driverClass}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.user}" />
        <property name="password" value="${jdbc.password}" />
        <!-- 配置初始化大小、最小、最大 -->
        <property name="initialSize" value="3" />
        <property name="minIdle" value="3" />
        <property name="maxActive" value="20" />
        <!-- 配置获取连接等待超时的时间 -->
        <property name="maxWait" value="60000" />
        <!-- 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="300000" />
        <property name="validationQuery" value="SELECT 'x'" />
        <property name="testWhileIdle" value="true" />
        <property name="testOnBorrow" value="false" />
        <property name="testOnReturn" value="false" />
        <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->
        <property name="poolPreparedStatements" value="true" />
        <property name="maxPoolPreparedStatementPerConnectionSize"
                  value="20" />
        <!-- 配置监控统计拦截的filters，去掉后监控界面sql无法统计 -->
        <property name="filters" value="stat" />
    </bean>
    <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 自动扫描mapping.xml文件 -->
        <property name="mapperLocations" value="classpath:mapping/*.xml"></property>
    </bean>
    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.w3cjava.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
    </bean>
    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
</beans>

数据源Properties文件：w3cjava.properties 

#Mysql驱动
jdbc.driverClass=com.mysql.jdbc.Driver
#数据源
jdbc.url=jdbc:mysql://127.0.0.1:3306/ssm?useUnicode=true&characterEncoding=utf8
jdbc.user=root
jdbc.password=123456

Log日志配置：log4j.properties 

log4j.rootLogger=debug, stdout, logfile
log4j.logger.com.ibatis=DEBUG
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUG
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=DEBUG
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=DEBUG
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG
log4j.logger.java.sql.ResultSet=DEBUG
log4j.logger.org.springframework=DEBUG
log4j.logger.org.compass=DEBUG
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%t] [%c]  - %m%n
log4j.appender.logfile=org.apache.log4j.RollingFileAppender
log4j.appender.logfile.File=empi.log

web.xml配置：

最后一步，就是web.xml配置了

<?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" 
		 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>W3cJavaSSM</display-name>
	<context-param>
	  <param-name>contextConfigLocation</param-name>
	  <param-value>classpath:spring-context*.xml</param-value>
	</context-param>
	
	<!-- Spring监听器 -->
	<listener>
	  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
    
	<!-- Spring MVC配置 -->
	<servlet>
	    <servlet-name>SpringMVC</servlet-name>
	    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
	    <init-param>
	        <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>
</web-app>

SQL语句： 

-- ----------------------------
-- Table structure for `user`
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `id` varchar(255) DEFAULT NULL,
  `name` varchar(255) DEFAULT NULL,
  `age` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('1', '1', '1');
INSERT INTO `user` VALUES ('2', '2', '2');

POJO层： 

package com.w3cjava.pojo;

public class User{
	private String id;
	private String name;
	private Integer age;
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public Integer getAge() {
		return age;
	}
	public void setAge(Integer age) {
		this.age = age;
	}
	
}

UserMapper层，即Dao层： 

package com.w3cjava.dao;

import java.util.List;

import org.springframework.stereotype.Component;

import com.w3cjava.pojo.User;

@Component
public interface UserMapper {
	public List<User> getAllUsers();
	public User findById(String id);
}

UserMapper对应的映射文件：UserMapper.xml

映射文件UserMapper.xml所在位置在mybatis.xml文件中有配置，一般会选择配置在resources下建立mapping目录下。

<?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.w3cjava.dao.UserMapper" >
    <resultMap id="BaseResultMap" type="com.w3cjava.pojo.User" >
        <id column="id" property="id" jdbcType="VARCHAR" />
        <result column="name" property="name" jdbcType="VARCHAR" />
        <result column="age" property="age" jdbcType="INTEGER" />
    </resultMap>
    <sql id="Base_Column_List" >
        id, name, age
    </sql>

    <select id="findById" parameterType="String" resultMap="BaseResultMap">
        select 
        
        <include refid="Base_Column_List"/>
        from user where id=#{id}
    </select>

    <select id="getAllUsers" resultMap="BaseResultMap" parameterType="Map" >
        select
        <include refid="Base_Column_List" />
        from user
    </select>

</mapper>

Service层： 

package com.w3cjava.service;

import java.util.List;

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

import com.w3cjava.dao.UserMapper;
import com.w3cjava.pojo.User;

@Service
public class UserService {
	@Autowired
	private UserMapper userMapper;
	
	public List<User> getAllUsers(){
		return userMapper.getAllUsers();
	}
	
	public User findById(String id){
		return userMapper.findById(id);
	}
}

Controller层： 

package com.w3cjava.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.w3cjava.pojo.User;
import com.w3cjava.service.UserService;

@Controller
@RequestMapping("/user")
public class UserController {
	@Autowired
	private UserService userService;
	@RequestMapping(value={"list",""})
	public String index(Model model){
		List<User> allUsers = userService.getAllUsers();
		model.addAttribute("allUsers", allUsers);
		return "user/userList";
	}
	
	@RequestMapping(value={"add"})
	public String add(){
		return "user/userAdd";
	}
	
	@RequestMapping(value={"edit"})
	public String edit(User user){
		User user2 = userService.findById(user.getId());
		return "user/userEdit";
	}
	
	@RequestMapping(value={"delete"})
	public String delete(User user){
		userService.findById(user.getId());
		return "user/userList";
	}
	
	
	
}

页面userList.jsp 

<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<%@ include file="/static/include/taglib.jsp"%>    
<!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>w3cjava</title>
</head>
<body>
	<a type="button" href="${ctx}/user/add" target="_blank" rel="external nofollow" >新增</a>
	<table style="border: 1px solid black">
		<thead>
			<tr>
				<td style="border: 1px solid black">ID</td>
				<td style="border: 1px solid black">登录名</td>
				<td style="border: 1px solid black">工号</td>
				<td style="border: 1px solid black">编辑</td>
				<td style="border: 1px solid black">删除</td>
			</tr>		
		</thead>
		<c:forEach var="user" items="${allUsers}" varStatus="status">
			<tr>
				<td style="border: 1px solid black">${user.id}</td>
				<td style="border: 1px solid black">${user.name}</td>
				<td style="border: 1px solid black">${user.age}</td>
				<td style="border: 1px solid black"><a href="${ctx}/user/edit?id=${user.id}" target="_blank" rel="external nofollow" >编辑</a></td>
				<td style="border: 1px solid black"><a href="${ctx}/user/delete?id=${user.id}" target="_blank" rel="external nofollow" >删除</a></td>
			</tr>
		</c:forEach>
	</table>
</body>
</html>

userAdd.jsp 

<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<%@ include file="/static/include/taglib.jsp"%>    
<!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>新增</title>
</head>
<body>
	新增
</body>
</html>

userEdit.jsp 

<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<%@ include file="/static/include/taglib.jsp"%>    
<!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>新增</title>
</head>
<body>
	编辑
</body>
</html>

页面中通过include引入taglib.jsp，主要作用是把常用的页面所需配置项放到这里。

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<c:set var="ctxStatic" value="${pageContext.request.contextPath}/static"/>
<c:set var="ctx" value="${pageContext.request.contextPath}"/>

至此，SSM框架已经完成整合，完整的目录机构：

SSM(一)框架的整合

下面通过Tomcat启动项目，访问http://localhost:8080/user截图如下

SSM(一)框架的整合

SSM整合源码：Github，这篇整合的源码在bak文件夹下

ssm 框架整合
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