SSM框架(Spring+SpringMVC+MyBatis)是目前Java WEB开发使用较多的框架，搭建起来起来比较麻烦，之前也曾搭建成功过。这次通过结合SSM开发的相关学习视频，再一次系统性的将整个SSM框架的搭建过程记录下来，以此来方便日后的开发。本文的前提条件，是Maven已经成功安装完毕！
搭建环境：IDEA.1
Maven3.3.9
Jdk1.7
Tomcat7.0
Mysql5.7
1、建立Maven Project
(1)新建一个Maven项目
(2)输入GroupId和ArtifactId,可随意输入，GroupId可认为是项目的包名，ArtifactId为项目的名称
(3)找到Maven安装的Home,关于Maven使用的镜像仓库是在Setting.xml中可修改的，这里注意下选择的Setting.xml的存放位置
(4)完成
(5)查看IDEA Console中Maven项目是否建立成功[INFO]----------------------------------------------------------------------------
[INFO]Usingfollowingparametersforcreatingprojectfrom
Archetype:maven-archetype-webapp:RELEASE
[INFO]----------------------------------------------------------------------------
[INFO]Parameter:groupId,Value:com.test
[INFO]Parameter:artifactId,Value:test
[INFO]Parameter:version,Value:1.0-SNAPSHOT
[INFO]Parameter:package,Value:com.test
[INFO]Parameter:packageInPathFormat,Value:com/test
[INFO]Parameter:package,Value:com.test
[INFO]Parameter:version,Value:1.0-SNAPSHOT
[INFO]Parameter:groupId,Value:com.test
[INFO]Parameter:artifactId,Value:test
[INFO]ProjectcreatedfromArchetypeindir:
C:\Users\Administrator\AppData\Local\Temp\archetypetmp\test
[INFO]------------------------------------------------------------------------
[INFO]BUILDSUCCESS
[INFO]------------------------------------------------------------------------
[INFO]Totaltime:13.736s
[INFO]Finishedat:-12-13T11:13:40+08:00
[INFO]FinalMemory:14M/150M
[INFO]------------------------------------------------------------------------
[INFO]Mavenexecutionfinished
(6)建立好的Maven项目树状结构图
2、整合SSM框架
(1)在Pom.xml中添加Spring、SpringMVC、MyBatis相关jar
UTF-8
1.7
1.7
3.2.0.RELEASE
3.2.7
org.springframework
spring-core
${spring.version}
org.springframework
spring-beans
${spring.version}
org.springframework
spring-context
${spring.version}
org.springframework
spring-context-support
${spring.version}
org.springframework
spring-tx
${spring.version}
org.springframework
spring-jdbc
${spring.version}
org.springframework
spring-web
${spring.version}
org.springframework
spring-webmvc
${spring.version}
org.springframework
spring-test
${spring.version}
org.mybatis
mybatis
${mybatis.version}
org.mybatis
mybatis-spring
1.2.2
javax.servlet
javax.servlet-api
3.0.1
provided
javax.servlet.jsp
jsp-api
2.2
provided
javax.servlet
jstl
1.2
taglibs
standard
1.1.2
com.fasterxml.jackson.core
jackson-databind
2.9.4
mysql
mysql-connector-java
5.1.39
commons-dbcp
commons-dbcp
1.2.2
commons-pool
commons-pool
1.3
ch.qos.logback
logback-classic
1.1.1
junit
junit
4.11
test
(2)在main/,新建java、resources文件夹，分别设为Sources Root和Resources Root，java主要是用来存放业务逻辑代码，resources主要是存放相关配置文件。
(3)在resources/，新建db.properties和log4j.properties，主要用于存放数据库的连接配置信息和日志配置信息。
db.properties:jdbc.driver=com.mysql.jdbc.Driver//使用的是mysqljdbc驱动
jdbc.url=jdbc:mysql://localhost:3306/database//url、port、database
jdbc.username=root//账号
jdbc.password=123456//密码
log4j.properties:#Globallogging
configuration\uff0c\u5efa\u8bae\u5f00\u53d1\u73af\u5883\u4e2d\u8981\u7528debug
log4j.rootLogger=DEBUG,stdout
#Consoleoutput...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p[%t]-%m%n
(4)在mybatis/，创建mybatis整合需要的配置文件sqlMapConfig.xml
注：由于使用spring和mybatis的整合包进行mapper扫描，这里不需要进行mapper配置了。但必须遵循：mapper.xml和mapper.java文件同名且在一个目录。
(5)在spring/，创建spring整合需要的配置文件applicationContext.xml<?xml version="1.0"encoding="UTF-8"?>
xmlns:xsi="/2001/XMLSchema-instance"
xmlns:context="/schema/context"
xmlns:aop="/schema/aop"
xmlns:tx="/schema/tx"
xsi:schemaLocation="/schema/beans
/schema/beans/spring-beans.xsd
/schema/context
/schema/context/spring-context.xsd
/schema/aop
/schema/aop/spring-aop.xsd
/schema/tx
/schema/tx/spring-tx.xsd">
destroy-method="close">
DataSourceTransactionManager">
pointcut="execution(*cn.ssm.test.service.impl.*.*(..))"/>
(6)在spring/,创建springmvc.xml,配置注解映射器、注解适配器、视图解析器等<?xml version="1.0"encoding="UTF-8"?>
xmlns:xsi="/2001/XMLSchema-instance"
xmlns:util="/schema/util"
xmlns:mvc="/schema/mvc"
xmlns:context="/schema/context"
xsi:schemaLocation="/schema/beans
/schema/beans/spring-beans.xsd
/schema/util
/schema/util/spring-util.xsd
/schema/mvc
/schema/mvc/spring-mvc.xsd
/schema/context
/schema/context/spring-context.xsd">
InternalResourceViewResolver">
FormattingConversionServiceFactoryBean">
CustomDateConverter"/>
(7)创建逆向工程，自动生成po及mapper文件
Po文件主要生成的是数据库表的字段定义，相关字段的Get和Set方法。
mapper文件主要生成的是数据库表中一般字段的查询接口及相关xml文件等。
po对象：publicclassItems{
privateIntegerid;
privateStringname;
privateFloatprice;
privateStringpic;
privateDatecreatetime;
privateStringdetail;
publicIntegergetId(){
returnid;
}
publicvoidsetId(Integerid){
this.id=id;
}
publicStringgetName(){
returnname;
}
publicvoidsetName(Stringname){
this.name=name==null?null:name.trim();
}
publicFloatgetPrice(){
returnprice;
}
publicvoidsetPrice(Floatprice){
this.price=price;
}
publicStringgetPic(){
returnpic;
}
publicvoidsetPic(Stringpic){
this.pic=pic==null?null:pic.trim();
}
publicDategetCreatetime(){
returncreatetime;
}
publicvoidsetCreatetime(Datecreatetime){
this.createtime=createtime;
}
publicStringgetDetail(){
returndetail;
}
publicvoidsetDetail(Stringdetail){
this.detail=detail==null?null:detail.trim();
}
}
Mapper:
mapper接口类：publicinterfaceItemsMapper{
intcountByExample(ItemsExampleexample);
intdeleteByExample(ItemsExampleexample);
intdeleteByPrimaryKey(Integerid);
intinsert(Itemsrecord);
intinsertSelective(Itemsrecord);
ListselectByExampleWithBLOBs(ItemsExampleexample);
ListselectByExample(ItemsExampleexample);
ItemsselectByPrimaryKey(Integerid);
intupdateByExampleSelective(@Param("record")Itemsrecord,
@Param("example")ItemsExampleexample);
intupdateByExampleWithBLOBs(@Param("record")Itemsrecord,
@Param("example")ItemsExampleexample);
intupdateByExample(@Param("record")Itemsrecord,
@Param("example")ItemsExampleexample);
intupdateByPrimaryKeySelective(Itemsrecord);
intupdateByPrimaryKeyWithBLOBs(Itemsrecord);
intupdateByPrimaryKey(Itemsrecord);
}
Mapper xml文件：<?xml version="1.0"encoding="UTF-8"?>
mapperPUBLIC"-////DTDMapper3.0//EN"
"/dtd/mybatis-3-mapper.dtd">
extends="BaseResultMap">
and${criterion.condition}
and${criterion.condition}#{criterion.value}
and${criterion.condition}#{criterion.value}
and#{criterion.secondValue}
and${criterion.condition}
item="listItem"open="("close=")"separator=",">
#{listItem}
and${criterion.condition}
and${criterion.condition}#{criterion.value}
and${criterion.condition}#{criterion.value}
and#{criterion.secondValue}
and${criterion.condition}
item="listItem"open="("close=")"separator=",">
#{listItem}
id,name,price,pic,createtime
detail
parameterType="cn.ssm.test.po.ItemsExample">
select
distinct
,
fromitems
orderby${orderByClause}
parameterType="cn.ssm.test.po.ItemsExample">
select
distinct
fromitems
orderby${orderByClause}
parameterType="java.lang.Integer">
select
,
fromitems
whereid=#{id,jdbcType=INTEGER}
deletefromitems
whereid=#{id,jdbcType=INTEGER}
deletefromitems
insertintoitems(id,name,price,
pic,createtime,detail
)
values(#{id,jdbcType=INTEGER},#{name,jdbcType=VARCHAR},
#{price,jdbcType=REAL},
#{pic,jdbcType=VARCHAR},#{createtime,jdbcType=TIMESTAMP},
#{detail,jdbcType=LONGVARCHAR}
)
insertintoitems
id,
name,
price,
pic,
createtime,
detail,
#{id,jdbcType=INTEGER},
#{name,jdbcType=VARCHAR},
#{price,jdbcType=REAL},
#{pic,jdbcType=VARCHAR},
#{createtime,jdbcType=TIMESTAMP},
#{detail,jdbcType=LONGVARCHAR},
resultType="java.lang.Integer">
selectcount(*)fromitems
updateitems
id=#{record.id,jdbcType=INTEGER},
name=#{record.name,jdbcType=VARCHAR},
price=#{record.price,jdbcType=REAL},
pic=#{record.pic,jdbcType=VARCHAR},
createtime=#{record.createtime,jdbcType=TIMESTAMP},
detail=#{record.detail,jdbcType=LONGVARCHAR},
updateitems
setid=#{record.id,jdbcType=INTEGER},
name=#{record.name,jdbcType=VARCHAR},
price=#{record.price,jdbcType=REAL},
pic=#{record.pic,jdbcType=VARCHAR},
createtime=#{record.createtime,jdbcType=TIMESTAMP},
detail=#{record.detail,jdbcType=LONGVARCHAR}
updateitems
setid=#{record.id,jdbcType=INTEGER},
name=#{record.name,jdbcType=VARCHAR},
price=#{record.price,jdbcType=REAL},
pic=#{record.pic,jdbcType=VARCHAR},
createtime=#{record.createtime,jdbcType=TIMESTAMP}
updateitems
name=#{name,jdbcType=VARCHAR},
price=#{price,jdbcType=REAL},
pic=#{pic,jdbcType=VARCHAR},
createtime=#{createtime,jdbcType=TIMESTAMP},
detail=#{detail,jdbcType=LONGVARCHAR},
whereid=#{id,jdbcType=INTEGER}
updateitems
setname=#{name,jdbcType=VARCHAR},
price=#{price,jdbcType=REAL},
pic=#{pic,jdbcType=VARCHAR},
createtime=#{createtime,jdbcType=TIMESTAMP},
detail=#{detail,jdbcType=LONGVARCHAR}
whereid=#{id,jdbcType=INTEGER}
updateitems
setname=#{name,jdbcType=VARCHAR},
price=#{price,jdbcType=REAL},
pic=#{pic,jdbcType=VARCHAR},
createtime=#{createtime,jdbcType=TIMESTAMP}
whereid=#{id,jdbcType=INTEGER}
(8)在service文件夹内，通过使用service整合mapper接口，实现相关查询功能@Autowired
privateItemsMapperitemsMapper;
@Override
publicListfindItemsList(ItemsQueryVoitemsQueryVo)
throwsException{
//通过ItemsMapperCustom查询数据库
returnitemsMapperCustom.findItemsList(itemsQueryVo);
}
(9)创建controller，使用注解功能@Controller
//为了对url进行分类管理，可以在这里定义根路径，最终访问url是根路径+子路径
//比如：商品列表：/items/queryItems.action
@RequestMapping("/items")
publicclassItemsController{
@Autowired
privateItemsServiceitemsService;
//商品查询
@RequestMapping("/queryItems")
publicModelAndViewqueryItems(HttpServletRequestrequest)throwsException{
//测试forward后request是否可以共享
System.out.println(request.getParameter("id"));
//调用service查找数据库，查询商品列表
ListitemsList=itemsService.findItemsList(null);
//返回ModelAndView
ModelAndViewmodelAndView=newModelAndView();
//相当于request的setAttribut，在jsp页面中通过itemsList取数据
modelAndView.addObject("itemsList",itemsList);
//指定视图
//下边的路径，如果在视图解析器中配置jsp路径的前缀和jsp路径的后缀，修改为
//modelAndView.setViewName("/WEB-INF/jsp/items/itemsList.jsp");
//上边的路径配置可以不在程序中指定jsp路径的前缀和jsp路径的后缀
modelAndView.setViewName("items/itemsList");
returnmodelAndView;
}
}
(10)在WEB-INF下添加jsp文件，在jsp文件夹内添加html文件
(11)修改web.xml的配置，修改访问路径、配置外路径等。
xmlns="/xml/ns/javaee"
xsi:schemaLocation="/xml/ns/javaee
/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID"version="2.5">
test
contextConfigLocation
classpath:spring/applicationContext.xml
org.springframework.web.context.ContextLoaderListener
spring_mybatis
org.springframework.web.servlet.DispatcherServlet
contextConfigLocation
classpath:spring/springmvc.xml
spring_mybatis
*.action
CharacterEncodingFilter
org.springframework.web.filter.CharacterEncodingFilter
encoding
utf-8
CharacterEncodingFilter
/*
index.html
index.htm
index.jsp
default.html
default.htm
default.jsp
3、实现Tomcat热部署
(1)找到Edit configurations,进入到如下界面
(2)点击fix或者点击Deployment,进入如下界面设置相关参数
(3)更改下图中的两项参数
(4)Build项目
(5)build后的结果展示
4、注意事项
(1)需要在pom.xml中的build下添加如下代码，解决编译后的mapper文件内无法编译XXXmapper.xml内容
src/main/java
**/*.xml
**/*.properties
false
(2)热部署的时候，注意不要改变Application context的默认配置，需要修改首页显示的页面，路径可在Server中配置
