由于不能使用maven管理，只能导入jar包做实验，最下面有截图展示所用到的jar包，可以自己搜索文档maven导入依赖；
 

SSM整合开发综合实例

实验目的：
（1）掌握SSM项目整合的原则；
（2）掌握SSM框架的整合步骤；
（3）掌握综合开发实例的实现；

实验要求：
（1） 完成SSM框架的整合搭建；
（2） 完成SSM项目的配置；
（3） 完成相关代码的编写；
（4） 完成jsp页面的编码；

实验内容：
根据给定的数据库，完成一个SSM框架的项目搭建，要求最终实现在一个页面中输入学校名称和学校人数，点击按钮，将数据插入到数据库中，要求在过程中使用SSM 框架完成。

由于配置和代码中含有路径的原因，先展示一下目录：

<?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:aop="http://www.springframework.org/schema/aop"
    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://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">

    <!-- 注册数据源 -->
    <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver" />
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/javaeetest7?useSSL=false" />
        <property name="user" value="root" />
        <property name="password" value="123456" />
    </bean>
     <!-- 配置Session工厂对象-->
    <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 配置扫描的包-->
    <bean id="mapperScan" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.ldu.dao"></property>
    </bean>
    <!-- 扫描注解的类-->
    <context:component-scan base-package="com.ldu.service"></context:component-scan>
</beans>

springmvc.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/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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <context:component-scan base-package="com.ldu"/>
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
    <mvc:annotation-driven/>
    <mvc:default-servlet-handler></mvc:default-servlet-handler>
</beans>

web.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" version="3.1">
  <display-name>javaEETest6.0</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:application.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <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:springmvc.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>

2.业务逻辑功能代码
实体类School.java：

package com.ldu.pojo;

public class School {
    private Integer id;
    private String name;
    private int persons;
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getPersons() {
        return persons;
    }
    public void setPersons(int persons) {
        this.persons = persons;
    }
    @Override
    public String toString() {
        return "school [id=" + id + ", name=" + name + ", persons=" + persons + "]";
    }
}

Dao层 SchoolDao.java：

package com.ldu.dao;
import org.apache.ibatis.annotations.Insert;
import org.springframework.stereotype.Repository;

@Repository
public interface SchoolDao {

    @Insert("insert into t_school(name, persons) values(#{param1},#{param2})")
    int InsertSchool(String name, Integer persons);
}

Service层 SchoolService.java：

package com.ldu.service;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.ldu.dao.SchoolDao;

@Service
public class SchoolService {

    @Resource
    private SchoolDao schoolDao;

    public int insertSchool(String name, Integer persons) {
        return schoolDao.InsertSchool(name, persons);
    }    
}

Controller层 SchoolController.java：

package com.ldu.controller;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.ldu.service.SchoolService;
import com.ldu.pojo.School;

@Controller
@RequestMapping("/school")
public class SchoolController {

    @Resource
    private SchoolService schoolService;

    @RequestMapping(value="/add", method=RequestMethod.POST)
    public String add(School school,Model model) {
        if(schoolService.insertSchool(school.getName(), school.getPersons())>0) {
            model.addAttribute("msg", "添加成功！");
        }
        else {
            model.addAttribute("msg", "添加失败！");
        }
        return "msg";
    }

}

3.Jsp页面的代码：

index.jsp：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML">
<html>
<head>
  <title>新增学校</title>
</head>

 <body>
    <form action="${pageContext.request.contextPath }/school/add" method="post">
        校名：<input name="name"><br/>
        人数：<input name="persons"><br/>
        <input type="submit" value="新增学校">
    </form>
 </body>
</html>

msg.jsp：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML">
<html>
<head>
  <title>反馈信息</title>
</head>

 <body>
    <h3>${msg}</h3>
 </body>
</html>

jar包

结果图：

1. 报错：Error creating bean with name ‘ ’ 原因是未开启注解扫描、未设置注解扫描的包路径。
2. 要注意检查DAO、Controller、Service层中相应的注解是否加上。

小知识：
实体类中用Integer而不是int的原因是：Integer是int包装后的对象，默认值是null，而int默认值是0。如果用int，在未赋值的情况下传入数据库，数据库接收到的是0而不是null；