为了方便复习，总结了SSM框架的搭建过程：
用的是eclipse 和tomcat服务器。创建了一个 Dynamic web project。
有关这些基础相关资料，可以查找网络。
一、项目整合概览
二、项目jar包介绍
jar包下载地址：http://central.maven.org/maven2/org/springframework/
其实，source.jar 是用来查看源代码的，javadoc.jar 是用来查看 文档的。这些可以去掉。
1、Spring IOC jar包：
core , content , bean , 在启动服务器 时需要 common log，在加载 容器时 需要 expression（spring 的标签语言），aop模块（面向切面编程）
2、SpringMVC jar包
只要 spring-webmvc.jar 包就行了。如果整合 struts框架，那么spring-webmvc.jar这个就不用了,spring 整合 Struts时 用 Struts 提供的整合 插件
3、jsp页面用jstl标签语言
当在jsp页面使用 jstl标签语言时，需要导入 jstl.jar 包。
比如 <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
4、数据库问题
mybatis核心包【mybatis.jar 】
mybatis 与spring整合包【mybatis-spring.jar】
mysql数据库驱动包 【mysql-connector.jar】
数据库 解析注解事务 【spring-tx.jar】
<!-- spring IOC 容器配置文件中， 开启基于注解的事务 -->
<tx:annotation-driven transaction-manager="dataSourceTransactionManager"/>
数据源包：根据不同数据源 配置，导入不同包
下面就是 导入 spring-jdbc.jar 包
<!-- spring IOC 容器配置文件中， 配置数据源 -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<!-- http://jingyan.baidu.com/article/b7001fe197a3f60e7282dd8d.html 中文数据库存取乱码问题 -->
<property name="url" value="jdbc:mysql://127.0.0.1:3306/mybatis?useUnicode=true&characterEncoding=UTF-8" />
<property name="username" value="root" />
<property name="password" value="Cool123!" />
</bean>
当然数据库配置文件，可以写在properties文件中，然后用${}引用。比如下面
当然这里的数据源也修改了：所以要用 c3p0.jar 包。
<!-- 引入数据库的配置文件 -->
<context:property-placeholder location="classpath:dbconfig.properties" />
<!-- Spring IOC 容器配置文件中，用来控制数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="jdbcUrl" value="${jdbc.url}"></property>
<property name="driverClass" value="${jdbc.driver}"></property>
<property name="user" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean>
关于数据源的写法，也可以有另一种写法：
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName">
<value>com.mysql.jdbc.Driver</value>
</property>
<property name="url">
<value>jdbc:mysql://127.0.0.1:3306/mybatis?useUnicode=true&characterEncoding=UTF-8
</value>
</property>
<property name="username">
<value>root</value>
</property>
<property name="password">
<value>Cool123!</value>
</property>
</bean>
三、数据库搭建
简单举例：
id last_name gender email
1 mike 0 [email protected]
2 book 0 [email protected]
3 tom 1 [email protected]
4 jerry 1 [email protected]
四、SSM项目搭建
1、编辑web.xml
文件中添加了:
1、spring-mvc 配置文件【springmvc-servlet.xml】
2、spring-ioc 配置文件【applicationContext.xml】
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>Mybatis_06_SSM</display-name>
<!--Spring配置： needed for ContextLoaderListener -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!-- Bootstraps the root web application context before servlet initialization -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- SpringMVC配置 -->
<!-- The front controller of this Spring Web application, responsible for handling all application requests -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Map all requests to the DispatcherServlet for handling -->
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
2、配置springmvc-servlet.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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
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-4.0.xsd">
<!--SpringMVC只是控制网站跳转逻辑 -->
<!-- 只扫描控制器 -->
<context:component-scan base-package="com.test.springmvc" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<mvc:annotation-driven></mvc:annotation-driven>
<mvc:default-servlet-handler/>
</beans>
3、编辑请求页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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>Insert title here</title>
</head>
<body>
<a href="getemps">查询所有员工</a>
</body>
</html>
4、编辑控制器controller层
package com.test.springmvc.controller;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.test.springmvc.bean.Employee;
import com.test.springmvc.service.EmployeeService;
@Controller
public class EmployeeController {
@Autowired
EmployeeService employeeService;
@RequestMapping("/getemps")
public String emps(Map<String,Object> map){
List<Employee> emps = employeeService.getEmps();
map.put("allEmps", emps);
return "list";
}
}
5、编辑bean层和显示结果页
Employee.java
package com.test.springmvc.bean;
public class Employee {
private Integer id;
private String lastName;
private String email;
private String gender;
public Employee() {
super();
}
public Employee(Integer id, String lastName, String email, String gender) {
super();
this.id = id;
this.lastName = lastName;
this.email = email;
this.gender = gender;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
@Override
public String toString() {
return "Employee [id=" + id + ", lastName=" + lastName + ", email="
+ email + ", gender=" + gender + "]";
}
}
list.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!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>员工列表</title>
</head>
<body>
<table>
<tr>
<td>id</td>
<td>lastName</td>
<td>email</td>
<td>gender</td>
</tr>
<c:forEach items="${allEmps }" var="emp">
<tr>
<td>${emp.id }</td>
<td>${emp.lastName }</td>
<td>${emp.email }</td>
<td>${emp.gender }</td>
</tr>
</c:forEach>
</table>
</body>
</html>
6、编辑Service层和Dao层
EmployeeService.java
package com.test.springmvc.service;
import java.util.List;
import org.apache.ibatis.session.SqlSession;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.test.springmvc.bean.Employee;
import com.test.springmvc.dao.EmployeeMapper;
@Service
public class EmployeeService {
@Autowired
private EmployeeMapper employeeMapper;
@Autowired
private SqlSession sqlSession;
public List<Employee> getEmps(){
return employeeMapper.getEmps();
}
}
EmployeeMapper.java
package com.test.springmvc.dao;
import java.util.List;
import com.test.springmvc.bean.Employee;
public interface EmployeeMapper {
public Employee getEmpById(Integer id);
public List<Employee> getEmps();
}
7、编辑applicationContext.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:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- Spring希望管理所有的业务逻辑组件，等。。。 -->
<context:component-scan base-package="com.test.springmvc">
<context:exclude-filter type="annotation"
expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<!-- 引入数据库的配置文件 -->
<!--
<context:property-placeholder location="classpath:dbconfig.properties" />
Spring用来控制业务逻辑。数据源、事务控制、aop
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="jdbcUrl" value="${jdbc.url}"></property>
<property name="driverClass" value="${jdbc.driver}"></property>
<property name="user" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean> -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<!-- http://jingyan.baidu.com/article/b7001fe197a3f60e7282dd8d.html 中文数据库存取乱码问题 -->
<property name="url" value="jdbc:mysql://127.0.0.1:3306/mybatis?useUnicode=true&characterEncoding=UTF-8" />
<property name="username" value="root" />
<property name="password" value="Kitty521!" />
</bean>
<!-- <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName">
<value>com.mysql.jdbc.Driver</value>
</property>
<property name="url">
<value>jdbc:mysql://127.0.0.1:3306/mybatis?useUnicode=true&characterEncoding=UTF-8
</value>
</property>
<property name="username">
<value>root</value>
</property>
<property name="password">
<value>Kitty521!</value>
</property>
</bean> -->
<!-- spring事务管理 -->
<bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 开启基于注解的事务 -->
<tx:annotation-driven transaction-manager="dataSourceTransactionManager"/>
<!--
整合mybatis
目的：1、spring管理所有组件。mapper的实现类。
service==>Dao @Autowired:自动注入mapper；
2、spring用来管理事务，spring声明式事务
-->
<!--创建出SqlSessionFactory对象 -->
<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<!-- configLocation指定全局配置文件的位置 -->
<property name="configLocation" value="classpath:mybatis-config.xml"></property>
<!--mapperLocations: 指定mapper文件的位置-->
<property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"></property>
</bean>
<!-- 扫描所有的mapper接口的实现，让这些mapper能够自动注入；
base-package：指定mapper接口的包名
-->
<mybatis-spring:scan base-package="com.test.springmvc.dao"/>
<!-- <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.test.springmvc.dao"></property>
</bean> -->
</beans>
8、数据库配置文件和mybatis全局配置文件
dbconfig.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatis?allowMultiQueries=true
jdbc.username=root
jdbc.password=Cool123!
orcl.driver=oracle.jdbc.OracleDriver
orcl.url=jdbc:oracle:thin:@localhost:1521:orcl
orcl.username=scott
orcl.password=123456
mybatis-config.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!--显式的指定每个我们需要更改的配置的值，即使他是默认的。防止版本更新带来的问题 -->
<settings>
<!-- 开启数据库字段 自动 驼峰大小写转换，比如数据库 last_name 字段 会自动转换 赋值给bean中 的 lastName 属性-->
<setting name="mapUnderscoreToCamelCase" value="true"/>
<!-- 主要是因为 插入 null 到 oracle会报错，因为插入类型是JdbcType OTHER ，所以这里设置类型 为 NULL 来解决oracle 插入null报错问题-->
<setting name="jdbcTypeForNull" value="NULL"/>
<!-- 下面两个设置，是为了开启 mybatis的 延迟加载功能 -->
<setting name="lazyLoadingEnabled" value="true"/>
<setting name="aggressiveLazyLoading" value="false"/>
</settings>
<!-- 给数据库类型取别名，方便SQL映射文件，可以根据不同类型数据库，来写相应SQL语句 -->
<databaseIdProvider type="DB_VENDOR">
<property name="MySQL" value="mysql"/>
<property name="Oracle" value="oracle"/>
<property name="SQL Server" value="sqlserver"/>
</databaseIdProvider>
<!-- 已经在 spring ioc 容器中 配置了 sql 映射文件了，这里就不需要了写了，两个地方只要 有一个地方写了SQL映射文件就行
<mappers>
<mapper resource="mybatis/mapper/EmployeeMapper.xml" />
</mappers> -->
</configuration>
9、mybatis之SQL映射文件
EmployeeMapper.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.test.springmvc.dao.EmployeeMapper">
<!-- public Employee getEmpById(Integer id); -->
<select id="getEmpById" resultType="com.test.springmvc.bean.Employee">
select * from tbl_employee where id=#{id}
</select>
<!--public List<Employee> getEmps(); -->
<select id="getEmps" resultType="com.test.springmvc.bean.Employee">
select * from tbl_employee
</select>
</mapper>
