最简单的SSM框架整合_maven版

最简单的SSM框架整合_maven版

前言

笔者在做java web项目时,用 SSM+maven+easyui/bootstarp,接着上一个博文,我们记录的是SSM框架整合之java web普通版,而这篇博文中,我们做的是maven版本,使用maven来管理项目需要的jar包。不需要自己去下载了。万丈高楼平地起,这里是写的一个maven版的SSM整合。

在这里记录一下,希望有疑惑的人能找到答案。

项目总览
项目名称:SSM_Zh_Maven
数据库:booksystem
访问地址:http://localhost:8080/SSM_Zh_Maven/
源码地址:github
运行环境:eclipse+mysql+ssm+tomcat+bootstarp

一、项目准备:

新建maven工程
然后填写
组名:com.zout
项目名:SSM_Zh_Maven
然后完成。
最后如图:
最简单的SSM框架整合_maven版_第1张图片
记得修改项目的默认环境,配置成你自己的JDK版本啊,tomcat版本。

二、新建数据库:booksystem——建表book;

建book表语句如下:

CREATE TABLE `book` (
  `book_id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '图书ID',
  `name` varchar(100) NOT NULL COMMENT '图书名称',
  `number` int(11) NOT NULL COMMENT '图书数量',
  `detail` varchar(200) NOT NULL COMMENT '图书描述',
  PRIMARY KEY (`book_id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COMMENT='图书表'

表结构如下:
最简单的SSM框架整合_maven版_第2张图片

记得准备数据,所以就先添加——在数据库的book表里面添加数据,可以手动也可以使用java代码完成。

一般的ssm流程:

数据库的准备
pom文件
jdbc.properties
mybatis-config.xml
spring-mybatis
log4j.properties
实体类User
Dao接口UserDao
service接口UserService
以及它的实现类UserServiceImpl
映射mybatis-user.xml
spring-mvc.xml
配置web.xml
jsp页面
建控制器 xxxController

三、正文

第一步:pom.xml配置
添加Spring、Spring MVC、Mybatis的依赖文件

  1. pom.xml
<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>4.0.0modelVersion>
  <groupId>com.zoutgroupId>
  <artifactId>SSM_Zh_MavenartifactId>
  <packaging>warpackaging>
  <version>0.0.1-SNAPSHOTversion>
  <name>SSM_Zh_Maven Maven Webappname>
  <url>http://maven.apache.orgurl>
  
  <dependencies>
    
    <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>4.11version>
    dependency>
    
    
    <dependency>
      <groupId>ch.qos.logbackgroupId>
      <artifactId>logback-classicartifactId>
      <version>1.1.1version>
    dependency>
    
    <dependency>
      <groupId>mysqlgroupId>
      <artifactId>mysql-connector-javaartifactId>
      <version>5.1.37version>
      <scope>runtimescope>
    dependency>
    <dependency>
      <groupId>c3p0groupId>
      <artifactId>c3p0artifactId>
      <version>0.9.1.2version>
    dependency>
    
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatisartifactId>
      <version>3.3.0version>
    dependency>
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatis-springartifactId>
      <version>1.2.3version>
    dependency>
    
    <dependency>
      <groupId>taglibsgroupId>
      <artifactId>standardartifactId>
      <version>1.1.2version>
    dependency>
    <dependency>
      <groupId>jstlgroupId>
      <artifactId>jstlartifactId>
      <version>1.2version>
    dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.coregroupId>
      <artifactId>jackson-databindartifactId>
      <version>2.5.4version>
    dependency>
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>javax.servlet-apiartifactId>
      <version>3.1.0version>
    dependency>
    
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-coreartifactId>
      <version>4.1.7.RELEASEversion>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-beansartifactId>
      <version>4.1.7.RELEASEversion>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-contextartifactId>
      <version>4.1.7.RELEASEversion>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-jdbcartifactId>
      <version>4.1.7.RELEASEversion>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-txartifactId>
      <version>4.1.7.RELEASEversion>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webartifactId>
      <version>4.1.7.RELEASEversion>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webmvcartifactId>
      <version>4.1.7.RELEASEversion>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-testartifactId>
      <version>4.1.7.RELEASEversion>
    dependency>
  dependencies>
 
  <build>
    <finalName>SSM_Zh_MavenfinalName>
    <plugins>
    
			<plugin>
			<groupId>org.apache.tomcat.mavengroupId>   
            <artifactId>maven-compiler-pluginartifactId>  
	        <configuration>  
	          <source>1.8source>  
	          <target>1.8target>  
			configuration>
		plugin>
	plugins>
  build>
project>

第二步:jdbc.properties配置
添加数据库配置文件
在resources目录下新建:数据库配置文件jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/booksystem?useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=root

第三步:mybatis-config.xml配置
添加mybatis配置文件
在resources目录下新建文件:mybatis-config.xml



<configuration>
  
  <settings>
    
    <setting name="useGeneratedKeys" value="true" />

    
    <setting name="useColumnLabel" value="true" />

    
    <setting name="mapUnderscoreToCamelCase" value="true" />
  settings>
configuration>

第四步:Spring.xml配置:
添加Spring配置文件
在resources目录下新建文件:(这里可以配置一个总的也可以分开配置)
│ └── spring
│ ├── spring-dao.xml
│ ├── spring-service.xml
│ └── spring-web.xml

1.Spring-Dao.xml


<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.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd">
  
  
  <context:property-placeholder location="classpath:jdbc.properties" />

  
  <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
    
    <property name="driverClass" value="${jdbc.driver}" />
    <property name="jdbcUrl" value="${jdbc.url}" />
    <property name="user" value="${jdbc.username}" />
    <property name="password" value="${jdbc.password}" />

    
    <property name="maxPoolSize" value="30" />
    <property name="minPoolSize" value="10" />
    
    <property name="autoCommitOnClose" value="false" />
    
    <property name="checkoutTimeout" value="10000" />
    
    <property name="acquireRetryAttempts" value="2" />
  bean>

  
  <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    
    <property name="dataSource" ref="dataSource" />
    
    <property name="configLocation" value="classpath:mybatis-config.xml" />
    
    <property name="typeAliasesPackage" value="com.zout.entity" />
    
    <property name="mapperLocations" value="classpath:mapper/*.xml" />
  bean>

  
  <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    
    <property name="basePackage" value="com.zout.dao" />
  bean>
beans>

2.Spring-service.xml:


<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: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/tx
    http://www.springframework.org/schema/tx/spring-tx.xsd">
  
  <context:component-scan base-package="com.zout.service" />

  
  <bean id="transactionManager"
    class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    
    <property name="dataSource" ref="dataSource" />
  bean>
  
  <tx:annotation-driven transaction-manager="transactionManager" />
beans>

3.Spring-web.xml:


<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-3.0.xsd">
  
  
  
  <mvc:annotation-driven />

  
  <mvc:default-servlet-handler/>

  
  <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
    <property name="prefix" value="/WEB-INF/jsp/" />
    <property name="suffix" value=".jsp" />
  bean>

  
  <context:component-scan base-package="com.zout.web" />
beans>


第五步:logback日志配置文件(logback配置比log4j要简单点,功能类似)
添加日志配置文件
在resources目录下新建文件:
logback.xml


<configuration debug="true">
  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    
    <encoder>
      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%npattern>
    encoder>
  appender>
  <root level="debug">
    <appender-ref ref="STDOUT" />
  root>
configuration>

到这里SSM整合基本上配置xml文件都差不多了,接下来开始写跟业务有关的东西。

第六步:创建实体类entity
Javabean实体类
在java Resources 下新建com.xxx.xxx包,在新建java文件。
如下文件:
新建com.zout.entity
然后新建java文件:Book.java

package com.zout.entity;

/**
 *@class_name:Book 
 *@param:book的javabean实体类
 *@return: 
 *@author:Zoutao
 *@createtime:2018年2月10日
 */
public class Book {
	
	  private long bookId; 			//书id
	  private String name; 			//书名
	  private int number; 			//数量
	  private String detail; 		//详情
	  
	  
	public long getBookId() {
		return bookId;
	}
	public void setBookId(long bookId) {
		this.bookId = bookId;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getNumber() {
		return number;
	}
	public void setNumber(int number) {
		this.number = number;
	}
	public String getDetail() {
		return detail;
	}
	public void setDetail(String detail) {
		this.detail = detail;
	}
	
	@Override
	public String toString() {
		return "Book [bookId=" + bookId + ", name=" + name + ", number=" + number + ", detail=" + detail + "]";
	}
}

第七步:创建DAO层
数据对象访问接口
新建com.zout.dao
然后新建java文件:BookDao.java(注意,这是一个接口文件)

package com.zout.dao;

import java.util.List;
import org.apache.ibatis.annotations.Param;
import com.zout.entity.Book;
/**
 *@class_name:BookDao  
 *@param: book的dao层——数据访问对象
 *@return: 
 *@author:Zoutao
 *@createtime:2018年2月10日
 */

public interface BookDao {
	
	  Book queryById(long id);
	  //使用mybatis的注解设置参数
	  List<Book> queryAll(@Param("offset") int offset, @Param("limit") int limit);
	  int addBook(Book book);
	  int updateBook(Book book);
	  int deleteBookById(long id);

}

最后效果如图:
BookDao.java、Book.java
最简单的SSM框架整合_maven版_第3张图片

第八步:创建mybatis mapper文件
映射文件
在resources下新建一个mapper文件夹,然在旗下又创建xml:
resources/mapper/BookMapper.xml
在mapper文件中需要用到第六步的内容



  
  
<mapper namespace="com.zout.dao.BookDao">
  
  <select id="queryById" resultType="Book" parameterType="long">
    
    SELECT
    book_id,
    name,
    number,
    detail
    FROM
    book
    WHERE
    book_id = #{bookId}
  select>

  <select id="queryAll" resultType="Book">
    SELECT
    book_id,
    name,
    number,
    detail
    FROM
    book
    ORDER BY
    book_id
    LIMIT #{offset}, #{limit}
  select>

  <update id="updateBook" parameterType="Book">
    UPDATE book
    SET NAME = #{name},
    NUMBER = #{number},
    detail = #{detail}
    WHERE
    book_id = #{bookId}
    AND number > 0
  update>

  <insert id="addBook">
    INSERT INTO book(`book_id`, `name`, `number`,`detail`)
    VALUES(#{bookId}, #{name}, #{number}, #{detail})
  insert>

  <delete id="deleteBookById">
    DELETE FROM book WHERE book_id = #{bookId}
  delete>
mapper>

第九步:创建service层
业务逻辑接口
在java Resources下新建service包,然后再建:
BookService.java(接口)

package com.zout.service;

import java.util.List;
import com.zout.entity.Book;

/**
 *@class_name:BookService  
 *@param: 逻辑业务处理接口
 *@return: 
 *@author:Zoutao
 *@createtime:2018年2月10日
 */
public interface BookService {
	  Book getById(long bookId);
	  List<Book> getList(int start, int pageNum);
	  int addBook(Book book);
	  int updateBook(Book book);
	  int deleteBookById(long id);	
	  
}

第十步:创建service 实现类impl层
Service接口的实现类
在service包下,然后再建impl包,然后再建其实现类:
BookServiceImpl.java

package com.zout.service.impl;

import java.util.List;

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

import com.zout.dao.BookDao;
import com.zout.entity.Book;
import com.zout.service.BookService;

/**
 *@class_name:BookServiceImpl  
 *@param:业务逻辑接口的实现类
 *@return: 
 *@author:Zoutao
 *@createtime:2018年2月10日
 */
@Service
public class BookServiceImpl implements BookService {
  @Autowired
  private BookDao bookDao;

  @Override
  public Book getById(long bookId) {
    return bookDao.queryById(bookId);
  }

  @Override
  public List<Book> getList(int start, int pageNum) {
    return bookDao.queryAll(start, pageNum);
  }

  @Override
  public int addBook(Book book) {
    return bookDao.addBook(book);
  }

  @Override
  public int updateBook(Book book) {
    return bookDao.updateBook(book);
  }

  @Override
  public int deleteBookById(long id) {
    return bookDao.deleteBookById(id);
  }
}

第十一步:创建controller层
业务控制类
(这里我建的包名为web了,实际上写controller更专业)
在java Resources下新建web包,然后再建
BookController.java

package com.zout.web;

import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import com.zout.entity.Book;
import com.zout.service.BookService;

/**
 * @class_name:BookController
 * @param: 业务控制层-接收页面请求,处理,返回
 * @return:
 * @author:Zoutao
 * @createtime:2018年2月10日
 */
@Controller
@RequestMapping("/book")
public class BookController {
	private Logger logger = LoggerFactory.getLogger(this.getClass());

	@Autowired
	private BookService bookService;

	@RequestMapping(value = "/list", method = RequestMethod.GET)
	private String list(Model model) {
		List<Book> list = bookService.getList(0, 1000);
		model.addAttribute("list", list);
		return "list";// WEB-INF/jsp/"list".jsp
	}

	@RequestMapping(value = "/detail/{bookId}", method = RequestMethod.GET)
	private String detail(@PathVariable("bookId") Long bookId, Model model) {
		Book book = bookService.getById(bookId);
		model.addAttribute("book", book);
		return "detail";
	}

	@RequestMapping(value = "/add", method = RequestMethod.POST, produces = "text/plain;charset=UTF-8")
	@ResponseBody
	private String add(Book book) {
		Book hasBook = bookService.getById(book.getBookId());
		int i = -2;
		if (hasBook == null) {
			i = bookService.addBook(book);
		}
		return i > 0 ? "success" : "error";
	}

	@RequestMapping(value = "/del/{bookId}", method = RequestMethod.GET)
	@ResponseBody
	private String deleteBookById(@PathVariable("bookId") Long id) {
		int i = bookService.deleteBookById(id);
		return i > 0 ? "success" : "error";
	}
}

第十二步:创建前端显示jsp页面
前端页面
在webapp下,新建index.jsp:
1.index.jsp:

<%@ page language="java" contentType="text/html; charset=utf-8"
	pageEncoding="utf-8"%>
<% String appPath = request.getContextPath(); %>

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>图书管理系统-首页title>
head>
<body>
	<h2>SSM_BookSystem --- 整合示例h2>
	简单的查询、删除等基础功能
	<br /> 日期:2018-02-10 22:30:51
	<br /> 作者:Zoutao
	<br /> 博客:
	<a href="http://blog.csdn.net/ITBigGod" target="_blank">柒晓白a>
	<br />
	<br />
	<br />
	<br /> 图书管理系统:
	<a href="<%=appPath%>/book/list">点击前往a>
body>
html>

在这个SSM整合的maven版本里面,顺便提一下前端框架bootstarp,用来美化前端也就,在本文中顺带写一些。
引用bootstarp前端框架
这里用它官网的CDN服务器,远程引入,不需要下载bootstarp的源文件。
在WEB-INF下新建jsp文件夹,然后新建jsp页面:
2.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"%>
<% String appPath = request.getContextPath(); %>

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>图书列表页title>

<link
	href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css"
	rel="stylesheet">
head>
<body>
	<div class="container">
		<div class="row clearfix">
			<div class="col-md-12 column">
				<div class="page-header">
					<h1>
						Zoutao <small>图书管理系统——ssm整合示例small>
					h1>
				div>
			div>
		div>
		<div class="row clearfix">
			<div class="col-md-12 column">
				<ul class="nav nav-tabs">
					<li class="active"><a href="<%=appPath%>/book/list">首页a>li>
					<li><a href="<%=appPath%>/book/detail/1000">图书具体信息a>li>
					<li><a href="<%=appPath%>/add.jsp">添加图书信息a>li>
					<li class="disabled"><a href="#">信息a>li>
				ul>
			div>
		div>
		<div class="row clearfix">
			<div class="col-md-12 column">
				<div class="page-header">
					<h1>
						图书列表 <small>显示当前图书库存信息small>
					h1>
				div>
			div>
		div>
		<div class="row clearfix">
			<div class="col-md-12 column">
				<table class="table table-hover table-striped">
					<thead>
						<tr>
							<th>图书编号th>
							<th>图书名字th>
							<th>图书数量th>
							<th>操作th>
						tr>
					thead>
					<tbody>
						<c:forEach var="book" items="${requestScope.get('list')}"
							varStatus="status">
							<tr>
								<td>${book.bookId}td>
								<td>${book.name}td>
								<td>${book.number}td>
								<td><a href="<%=appPath%>/book/detail/${book.bookId}">详情a>
									| <a href="<%=appPath%>/book/del/${book.bookId}">删除a>td>
							tr>
						c:forEach>
					tbody>
				table>
			div>
		div>
	div>
	
	<script src="https://code.jquery.com/jquery.js">script>
body>
html>

在建一个detail.jsp页面:
3.detail.jsp:

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<%
	String appPath = request.getContextPath();
%>

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>图书详情页title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">

<script src="https://code.jquery.com/jquery.js">script>

<link
	href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css"
	rel="stylesheet">
head>
<body>
	<div class="container">
		<div class="row clearfix">
			<div class="col-md-12 column">
				<div class="page-header">
					<h1>
						Zoutao <small>图书管理系统——ssm整合示例small>
					h1>
				div>
			div>
		div>
		<div class="row clearfix">
			<div class="col-md-12 column">
				<ul class="nav nav-tabs">
					<li><a href="<%=appPath%>/book/list">首页a>li>
					<li class="active"><a href="<%=appPath%>/book/detail/1003">图书具体信息a>li>
					<li class="disabled"><a href="#">信息a>li>
				ul>
			div>
		div>
		<div class="row clearfix">
			<div class="col-md-12 column">
				<div class="page-header">
					<h1>
						图书详情 <small>显示当前图书详细信息small>
					h1>
				div>
			div>
		div>
		<div class="row clearfix">
			<div class="col-md-12 column">
				<table class="table table-hover table-striped">
					<thead>
						<tr>
							<th>图书编号th>
							<th>图书名字th>
							<th>图书数量th>
						tr>
					thead>
					<tbody>
						<tr>
							<td>${requestScope.get('book').bookId}td>
							<td>${requestScope.get('book').name}td>
							<td>${requestScope.get('book').number}td>
						tr>
					tbody>
				table>
			div>
		div>
		<div class="row clearfix">
			<div class="col-md-12 column">
				<p>
					<em>《${requestScope.get('book').name}》em>
					${requestScope.get('book').detail}
				p>
			div>
		div>
	div>
body>
html>

第十三步:配置web.Xml文件


<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/web-app_2_5.xsd"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
	version="3.0" metadata-complete="true">

	<display-name>Archetype Created Web Applicationdisplay-name>
	
	<servlet>
		<servlet-name>seckill-dispatcherservlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
		
		<init-param>
			<param-name>contextConfigLocationparam-name>
			<param-value>classpath:spring/spring-*.xmlparam-value>
		init-param>
	servlet>
	<servlet-mapping>
		<servlet-name>seckill-dispatcherservlet-name>
		
		<url-pattern>/url-pattern>
	servlet-mapping>
	<filter>
		<description>字符集过滤器description>
		<filter-name>encodingFilterfilter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
		<init-param>
			<description>字符集编码description>
			<param-name>encodingparam-name>
			<param-value>UTF-8param-value>
		init-param>
	filter>
	
	<listener>
		<listener-class>org.springframework.web.util.IntrospectorCleanupListenerlistener-class>
	listener>
	
	<session-config>
		<session-timeout>60session-timeout>
	session-config>
	
	<welcome-file-list>
		<welcome-file>index.jspwelcome-file>
	welcome-file-list>
web-app>

第十四步:部署测试运行
部署,测试,运行
最终页面:
最简单的SSM框架整合_maven版_第4张图片

最简单的SSM框架整合_maven版_第5张图片
最简单的SSM框架整合_maven版_第6张图片

最终目录结构:
最简单的SSM框架整合_maven版_第7张图片
最简单的SSM框架整合_maven版_第8张图片

总结:
1.(javabean)实体类的书写对应这数据库里面的表字段属性,最后生成setter+getter方法,还有重定向的.tostring方法;
以后的业务添加中,每多一张表就多一个实体类,多一个dao和mapper。
2. dao层是数据访问对象的接口,也就是数据接入的地方。
声明数据库的操作方法,增删查改的方法声明;
3. Service层是通过dao层接口来对业务逻辑的实现。
也是定义的声明数据库的操作方法,增删查改的方法声明;
4.impl层,这个是service的实现类,一般来说,dao层也会有一个实现类,写的是对service层方法的具体实现;


以上就是SSM框架整合_maven版的内容。其中加了数据的查询,删除等功能,其他仿照着写即可。


You got a dream, you gotta protect it.
如果你有梦想的话,就要去捍卫它 。 ——《当幸福来敲门》

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