SSM框架——Springmvc+Spring+MyBatis框架搭建

一:概述

Spring作为一个轻量级的框架,解决业务逻辑层和其他各层的松耦合问题,将面向接口的编程思想贯穿整个系统应用,有很多的拓展功能,最主要的我们一般项目使用的就是IOC(控制反转)和AOP (面向切面)

Springmvc和struts2都属于表现层框架,springmvc的入口是一个servlet即前端控制器,struts2的入口是一个filter过滤器,Springmvc接收参数更加方便简单

MyBatis是一个优秀的持久层框架,它对jdbc的操作数据库的过程进行封装,使开发者只需要关注 SQL 本身,Mybatis和hibernate不同,它不完全是一个ORM框架,直接编写原生态sql,可严格控制sql执行性能,灵活度高。

二:搭建SSM过程

1、创建web项目、导入相关jar包

2、创建数据库和表

/*
Navicat MySQL Data Transfer
​
Source Server         : localhost_3306
Source Server Version : 50611
Source Host           : localhost:3306
Source Database       : ssm
​
Target Server Type    : MYSQL
Target Server Version : 50611
File Encoding         : 65001
​
Date: 2016-05-09 19:45:13
*/
​
SET FOREIGN_KEY_CHECKS=0;
​
-- ----------------------------
-- Table structure for items
-- ----------------------------
DROP TABLE IF EXISTS `items`;
CREATE TABLE `items` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(32) NOT NULL COMMENT '商品名称',
  `price` float(10,1) NOT NULL COMMENT '商品定价',
  `detail` text COMMENT '商品描述',
  `pic` varchar(64) DEFAULT NULL COMMENT '商品图片',
  `createtime` datetime NOT NULL COMMENT '生产日期',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;
​
-- ----------------------------
-- Records of items
-- ----------------------------
INSERT INTO `items` VALUES ('1', '台式机', '3000.0', '该电脑质量非常好!!!!', null, '2016-02-03 13:22:53');
INSERT INTO `items` VALUES ('2', '笔记本', '6000.0', '笔记本性能好,质量好!!!!!', null, '2015-02-09 13:22:57');
INSERT INTO `items` VALUES ('3', '背包', '200.0', '名牌背包,容量大质量好!!!!', null, '2015-02-06 13:23:02');
​
-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(32) NOT NULL COMMENT '用户名称',
  `birthday` date DEFAULT NULL COMMENT '生日',
  `sex` char(1) DEFAULT NULL COMMENT '性别',
  `address` varchar(256) DEFAULT NULL COMMENT '地址',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=27 DEFAULT CHARSET=utf8;
​
-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('1', '王五', null, '2', null);
INSERT INTO `user` VALUES ('10', '张三', '2014-07-10', '1', '北京市');
INSERT INTO `user` VALUES ('16', '张小明', null, '1', '河南郑州');
INSERT INTO `user` VALUES ('22', '陈小明', null, '1', '河南郑州');
INSERT INTO `user` VALUES ('24', '张三丰', null, '1', '河南郑州');
INSERT INTO `user` VALUES ('25', '陈小明', null, '1', '河南郑州');
INSERT INTO `user` VALUES ('26', '王五', null, null, null);
 

3、创建source folder文件夹和配置文件

首先是连接数据的配置文件jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/crm?characterEncoding=utf-8
jdbc.username=root
jdbc.password=root

SqlMapConfig.xml文件是MyBatis的配置文件,在和spring整合之后只需要一个约束

<?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>
    <!-- 这里是maper配置文件中参数类型的映射 -->
    <!-- <typeAliases>
        <package name="cn.itcast.ssm.pojo"/>
    </typeAliases> -->
</configuration>

dao层的配置文件applicationContext-dao.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    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:task="http://www.springframework.org/schema/task" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd 
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-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/aop 
        http://www.springframework.org/schema/aop/spring-aop-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/task
        http://www.springframework.org/schema/task/spring-task-4.0.xsd
        http://code.alibabatech.com/schema/dubbo        
        http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
​
    <!-- 配置 读取properties文件 jdbc.properties -->
    <context:property-placeholder location="classpath:jdbc.properties" />
​
    <!-- 配置 数据源 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <!-- 驱动 -->
        <property name="driverClassName" value="${jdbc.driver}" />
        <!-- url -->
        <property name="url" value="${jdbc.url}" />
        <!-- 用户名 -->
        <property name="username" value="${jdbc.username}" />
        <!-- 密码 -->
        <property name="password" value="${jdbc.password}" />
    </bean>
​
    <!-- 配置 Mybatis的工厂 -->
    <bean class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 数据源 -->
        <property name="dataSource" ref="dataSource" />
        <!-- 配置Mybatis的核心 配置文件所在位置 -->
        <property name="configLocation" value="classpath:SqlMapConfig.xml" />
        <!-- 配置pojo别名 -->
        <property name="typeAliasesPackage" value="cn.ytl.core.bean"></property>
    </bean>
​
    <!-- 配置 1:原始Dao开发 接口实现类 Mapper.xml 三个 2:接口开发 接口 不写实现类 Mapper.xml 二个 (UserDao、ProductDao 
        、BrandDao。。。。。。。) 3:接口开发、并支持扫描 cn.ytl.core.dao(UserDao。。。。。) 写在此包下即可被扫描到 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="cn.ytl.ssm.dao" />
    </bean>
​
</beans>
​

applicationContext-service.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    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:task="http://www.springframework.org/schema/task"
    xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd 
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-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/aop 
        http://www.springframework.org/schema/aop/spring-aop-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/task
        http://www.springframework.org/schema/task/spring-task-4.0.xsd
        http://code.alibabatech.com/schema/dubbo        
        http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
        
        <!-- 配置  扫描   @Service -->
        <context:component-scan base-package="cn.ytl.ssm.service"/>
        
</beans>
​

applicationContext-trans.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
    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-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/aop http://www.springframework.org/schema/aop/spring-aop-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">
    <!-- 事务管理器 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 数据源 -->
        <property name="dataSource" ref="dataSource" />
    </bean>
    <!-- 通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <!-- 传播行为 -->
            <tx:method name="save*" propagation="REQUIRED" />
            <tx:method name="insert*" propagation="REQUIRED" />
            <tx:method name="add*" propagation="REQUIRED" />
            <tx:method name="create*" 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="select*" propagation="SUPPORTS" read-only="true" />
            <tx:method name="get*" propagation="SUPPORTS" read-only="true" />
        </tx:attributes>
    </tx:advice>
    <!-- 切面 -->
    <aop:config>
        <aop:advisor advice-ref="txAdvice"
            pointcut="execution(* cn.ytl.ssm.service.*.*(..))" />
    </aop:config>
</beans>

然后是springmvc的配置文件springmvc.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    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:task="http://www.springframework.org/schema/task"
    xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd 
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-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/aop 
        http://www.springframework.org/schema/aop/spring-aop-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/task
        http://www.springframework.org/schema/task/spring-task-4.0.xsd
        http://code.alibabatech.com/schema/dubbo        
        http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
        
        <!-- 配置扫描器 -->
        <context:component-scan base-package="cn.ytl.ssm.web.controller"/>
        <!-- 配置处理器映射器  适配器 -->
        <mvc:annotation-driven/>
        
        <!-- 配置视图解释器 jsp -->
        <bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/jsp/"/>
            <property name="suffix" value=".jsp"/>
        </bean>
        
</beans>
​

最重要也是最容易忘记的就是web.xml文件

<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>springmvc-first</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  <!-- 初始化spring 容器 -->
  <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/applicationContext-*.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
  <!-- 配置前段控制器 -->
  <servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <!-- 指定springmvc配置文件的路径 
            如果不指定默认为:/WEB-INF/${servlet-name}-servlet.xml
        -->
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/springmvc.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>*.action</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <!-- /:拦截所以请求,不包括jsp。/*:拦截所有请求包括jsp,应该配置“/” -->
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  <!-- 解决post乱码问题 -->
  <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

4、在WEB-INF下添加jsp文件夹,创建itemList.jsp文件

<%@ 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"%>
<!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>查询商品列表</title>
<script type="text/javascript" src="${pageContext.request.contextPath }/js/jquery-1.4.4.min.js"></script>
</head>
<body> 
<form action="${pageContext.request.contextPath }/item/queryitem.action" method="post">
查询条件:
<table width="100%" border=1>
<tr>
<td>商品id:<input type="text" name="items.id"/></td>
<td>商品名称:<input type="text" name="items.name"/></td>
<td><input type="submit" value="查询"/></td>
</tr>
</table>
商品列表:
<table width="100%" border=1>
<tr>
    <td>选择</td>
    <td>商品名称</td>
    <td>商品价格</td>
    <td>生产日期</td>
    <td>商品描述</td>
    <td>操作</td>
</tr>
<c:forEach items="${itemList }" var="item" varStatus="s">
<tr>
    <td><input type="checkbox" name="ids" value="${item.id }"></td>
    <td>
        <input type="hidden" name="itemList[${s.index}].id" value="${item.id }">
        <input type="text" name="itemList[${s.index}].name" value="${item.name }">
    </td>
    <td><input type="text" name="itemList[${s.index}].price" value="${item.price }"></td>
    <td><input type="text" name="itemList[${s.index}].createtime" value="<fmt:formatDate value="${item.createtime}" pattern="yyyy-MM-dd HH:mm:ss"/>"></td>
    <td><input type="text" name="itemList[${s.index}].detail" value="${item.detail }"></td>
    
    <%-- <td><a href="${pageContext.request.contextPath }/item/itemEdit.action?id=${item.id}">修改</a></td> --%>
    <td><a href="${pageContext.request.contextPath }/item/itemEdit/${item.id}">修改</a></td>
​
</tr>
</c:forEach>
​
</table>
</form>
<button onclick="sendJson()">json数据交互测试</button>
<script type="text/javascript">
    function sendJson() {
        $.ajax({
            type:"post",
            url:"${pageContext.request.contextPath }/item/jsontest.action",
            data:'{"id":1,"name":"电冰箱","price":1999.0}',
            contentType:"application/json;charset=utf-8",
            success:function(data){
                alert(data.id +":" +data.name);
            }
        });
    }
</script>
</body>
​
</html>

我们要创建包

cn.ytl.dao

cn.ytl.service

cn.ytl.web.controller

cn.ytl.pojo

在pojo包中创建Items.java

package cn.ytl.pojo;
​
import java.util.Date;
​
public class Items {
    private Integer id;
​
    private String name;
​
    private Float price;
​
    private String pic;
​
    private Date createtime;
​
    private String detail;
​
    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 == null ? null : name.trim();
    }
​
    public Float getPrice() {
        return price;
    }
​
    public void setPrice(Float price) {
        this.price = price;
    }
​
    public String getPic() {
        return pic;
    }
​
    public void setPic(String pic) {
        this.pic = pic == null ? null : pic.trim();
    }
​
    public Date getCreatetime() {
        return createtime;
    }
​
    public void setCreatetime(Date createtime) {
        this.createtime = createtime;
    }
​
    public String getDetail() {
        return detail;
    }
​
    public void setDetail(String detail) {
        this.detail = detail == null ? null : detail.trim();
    }
}

在cn.ytl.dao包中创建ItemsMapper接口和ItemsMapper.xml文件

<?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="cn.ytl.mapper.ItemsMapper" >
    <select id="selectAll" resulttype="items">
    select * from items
    </select>
</mapper>
public interface ItemsMapper {
    List<Items> selectAll();
}

在coneroller包中创建ItemsController.java

@Controller
@RequestMapping("/item")
public class ItemController {
    //注入service层
    @Autowired
    private ItemService itemService;
    
    @RequestMapping("/itemList")
    public ModelAndView getItemList(){
        //调用service层查询产品
        List<Items> list=itemService.getItemList();
        //创建modelandview
        ModelAndView modelAndView = new ModelAndView();
        //将list存入modelAndView
        modelAndView.addObject("itemList", list);
        modelAndView.setViewName("itemList");
        //返回客户端
        return modelAndView;
    }
}

service层接口

public interface ItemService {
    List<Items> getItemList();
}

实现类

@Service
public class ItemServiceImpl implements ItemService {
    //注入dao
    @Autowired
    private ItemsMapper itemsMapper;
​
    @Override
    public List<Items> getItemList() {
        ItemsExample example=new ItemsExample();
        List<Items> list=itemsMapper.selectAll(example);
        return list;
    }
}

访问localhost:8080/项目名/items/itemsList

猜你喜欢

转载自blog.csdn.net/roc_wl/article/details/82794108
今日推荐