SSM框架整合超详细（狂神）
文章目录
-
- 一、数据库搭建
-
- 1、环境要求
- 2、数据库环境
- 二、基本环境搭建
-
- 1、新建maven项目
- 2、导入pom依赖
- 3、Maven资源过滤设置
- 4、建立基本结构和框架
- 三、MyBatis层
-
- 1、数据库配置文件
- 2、IDEA关联数据库
- 3、编写MyBatis的核心配置文件
- 4、编写数据库对应的实体类
- 5、编写Dao层的 Mapper接口
- 6、编写接口对应的 Mapper.xml 文件
- 7、编写Service层的接口和实现类
- 四、Spring层
-
- 1、Spring整合MyBatis层
- 2、Spring整合Service层
- 3、Spring整合MVC层
- 4、Spring配置整合文件
- 5、web.xml
- 五、Controller 和 视图层
-
- 1、BookController 类编写
- 2、创建web
- 3、编写首页
- 4、书籍列表页面
- 5、添加书籍页面
- 6、修改书籍页面
- 7、删除书籍功能
- 六、配置Tomcat，进行运行
一、数据库搭建
1、环境要求
- IDEA
- MySQL 5.7.19
- Tomcat 9
- Maven
2、数据库环境
在ssmbuild数据库创建存放书籍数据的数据库表
CREATE DATABASE `ssmbuild`;
USE `ssmbuild`;
DROP TABLE IF EXISTS `books`;
CREATE TABLE `books` (
`bookID` INT(10) NOT NULL AUTO_INCREMENT COMMENT '书id',
`bookName` VARCHAR(100) NOT NULL COMMENT '书名',
`bookCounts` INT(11) NOT NULL COMMENT '数量',
`detail` VARCHAR(200) NOT NULL COMMENT '描述',
KEY `bookID` (`bookID`)
) ENGINE=INNODB DEFAULT CHARSET=utf8
INSERT INTO `books`(`bookID`,`bookName`,`bookCounts`,`detail`)VALUES
(1,'Java',1,'从入门到放弃'),
(2,'MySQL',10,'从删库到跑路'),
(3,'Linux',5,'从进门到进牢');
二、基本环境搭建
1、新建maven项目
2、导入pom依赖
<dependencies>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>4.12version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>5.1.47version>
dependency>
<dependency>
<groupId>com.mchangegroupId>
<artifactId>c3p0artifactId>
<version>0.9.5.2version>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>servlet-apiartifactId>
<version>2.5version>
dependency>
<dependency>
<groupId>javax.servlet.jspgroupId>
<artifactId>jsp-apiartifactId>
<version>2.2version>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>jstlartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>3.5.2version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>2.0.2version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>5.1.9.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>5.1.9.RELEASEversion>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
<version>1.18.10version>
dependency>
<dependency>
<groupId>org.aspectjgroupId>
<artifactId>aspectjweaverartifactId>
<version>1.8.13version>
dependency>
dependencies>
3、Maven资源过滤设置
<build>
<resources>
<resource>
<directory>src/main/resourcesdirectory>
<includes>
<include>**/*.propertiesinclude>
<include>**/*.xmlinclude>
includes>
<filtering>truefiltering>
resource>
<resource>
<directory>src/main/javadirectory>
<includes>
<include>**/*.propertiesinclude>
<include>**/*.xmlinclude>
includes>
<filtering>truefiltering>
resource>
resources>
build>
4、建立基本结构和框架
- mybatis-config.xml
DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
configuration>
- applicationContext.xml
<beans xmlns="http://www.springframework.org/schema/beans"
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.xsd">
beans>
项目所需的基本环境已经搭建好了
三、MyBatis层
1、数据库配置文件
database.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=false&useUnicode=true&characterEncoding=UTF-8
jdbc.username=root
jdbc.password=147258
2、IDEA关联数据库
3、编写MyBatis的核心配置文件
DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<setting name="logImpl" value="STDOUT_LOGGING"/>
settings>
<typeAliases>
<package name="com.shu.pojo"/>
typeAliases>
<mappers>
<mapper class="com.shu.dao.BookMapper"/>
mappers>
configuration>
4、编写数据库对应的实体类
使用lombok插件
com.kuang.pojo.Books
package com.shu.pojo;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Books {
private int bookID;
private String bookName;
private int bookCounts;
private String detail;
}
5、编写Dao层的 Mapper接口
package com.shu.dao;
import com.shu.pojo.Books;
import com.shu.pojo.Users;
import org.apache.ibatis.annotations.Param;
import java.util.List;
public interface BookMapper {
//增加一本书
int addBook(Books books);
//删除一本书
int deleteBookById(@Param("bookId") int id);
//修改一本书
int updateBook(Books books);
//查询一本书
Books queryBookById(@Param("bookId") int id);
//查询所有书
List<Books> queryAllBook();
//通过书名查询
Books queryBookByName(@Param("bookName") String bookName);
}
6、编写接口对应的 Mapper.xml 文件
需要导入MyBatis的包
DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.shu.dao.BookMapper">
<insert id="addBook" parameterType="Books">
insert into books(bookName,bookCounts,detail) values (#{bookName},#{bookCounts},#{detail})
insert>
<delete id="deleteBookById" parameterType="int">
delete from books where bookID=#{bookId}
delete>
<update id="updateBook" parameterType="Books">
update books
set bookName=#{bookName},bookCounts=#{bookCounts},detail=#{detail}
where bookID=#{bookID}
update>
<select id="queryBookById" resultType="Books">
select * from books
where bookID=#{bookId}
select>
<select id="queryAllBook" resultType="Books">
select * from books
select>
<select id="queryBookByName" resultType="Books">
select * from books
where bookName=#{bookName}
select>
mapper>
7、编写Service层的接口和实现类
接口：
package com.shu.service;
import com.shu.pojo.Books;
import java.util.List;
public interface BookService {
//增加一本书
int addBook(Books books);
//删除一本书
int deleteBookById( int id);
//修改一本书
int updateBook(Books books);
//查询一本书
Books queryBookById(int id);
//查询所有书
List<Books> queryAllBook();
Books queryBookByName(String bookName);
}
实现类：
package com.shu.service;
import com.shu.dao.BookMapper;
import com.shu.pojo.Books;
import java.util.List;
public class BookServiceImpl implements BookService{
//service调dao层 组合dao层
private BookMapper bookMapper;
public void setBookMapper(BookMapper bookMapper) {
this.bookMapper = bookMapper;
}
//增加书籍
public int addBook(Books books) {
return bookMapper.addBook(books);
}
//通过书籍ID删除
public int deleteBookById(int id) {
return bookMapper.deleteBookById(id);
}
//修改书籍
public int updateBook(Books books) {
return bookMapper.updateBook(books);
}
//通过书籍id查询书籍
public Books queryBookById(int id) {
return bookMapper.queryBookById(id);
}
//查询所有书籍
public List<Books> queryAllBook() {
return bookMapper.queryAllBook();
}
//通过书籍名查询书籍
public Books queryBookByName(String bookName){
return bookMapper.queryBookByName(bookName);
}
}
底层需求操作编写成。
四、Spring层
1、Spring整合MyBatis层
我们这里数据源使用c3p0连接池
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
https://www.springframework.org/schema/context/spring-context.xsd">
<context:property-placeholder location="classpath:database.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"/>
bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<property name="basePackage" value="com.shu.dao"/>
bean>
beans>
2、Spring整合Service层
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"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
https://www.springframework.org/schema/aop/spring-aop.xsd">
<context:component-scan base-package="com.shu.service"/>
<bean id="BookServiceImpl" class="com.shu.service.BookServiceImpl">
<property name="bookMapper" ref="bookMapper"/>
bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
bean>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="*" propagation="REQUIRED"/>
tx:attributes>
tx:advice>
<aop:config>
<aop:pointcut id="txPointCut" expression="execution(* com.shu.dao.*.*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
aop:config>
beans>
3、Spring整合MVC层
spring-mvc.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd">
<mvc:annotation-driven/>
<mvc:default-servlet-handler/>
<context:component-scan base-package="com.shu.controller"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
bean>
beans>
4、Spring配置整合文件
applicationContext.xml
<beans xmlns="http://www.springframework.org/schema/beans"
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.xsd">
<import resource="classpath:spring-dao.xml"/>
<import resource="classpath:spring-service.xml"/>
<import resource="classpath:spring-mvc.xml"/>
beans>
5、web.xml
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<servlet>
<servlet-name>springmvcservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>springmvcservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
<filter>
<filter-name>encodingFilterfilter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<init-param>
<param-name>encodingparam-name>
<param-value>utf-8param-value>
init-param>
filter>
<filter-mapping>
<filter-name>encodingFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<session-config>
<session-timeout>15session-timeout>
session-config>
web-app>
Spring层配置文件完成
五、Controller 和 视图层
1、BookController 类编写
package com.shu.controller;
import com.shu.pojo.Books;
import com.shu.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
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 java.util.ArrayList;
import java.util.List;
@Controller
@RequestMapping("/book")
public class BookController {
// controller层调service层
@Autowired
@Qualifier("BookServiceImpl")
private BookService bookService;
// 查询所有书籍，并返回到一个书籍展示页面
@RequestMapping("/allBook") //走book.allBook就能走到这个方法里面
public String list(Model model){
List<Books> list = bookService.queryAllBook(); //查询书籍
model.addAttribute("list",list);//将得到的数据返回到前端展示
return "allBook";
}
// 跳转到添加书籍页面
@RequestMapping("/toAddBook")
public String toAddPaper(){
return "addBook";
}
// 添加书籍请求
@RequestMapping("/addBook")
public String addBook(Books books){
bookService.addBook(books);
return "redirect:/book/allBook"; //重定向到我们的 @RequestMapping("/allBook")
}
// 跳转到修改页面
@RequestMapping("/toUpdateBook")
public String toUpdatePaper(int id,Model model){
Books books = bookService.queryBookById(id);
model.addAttribute("QBooks",books);
return "updateBook";
}
//修改书籍
@RequestMapping("/updateBook")
public String updateBook(Books books){
System.out.println("updateBook=>"+books);
bookService.updateBook(books);
return "redirect:/book/allBook";
}
// 删除书籍
@RequestMapping("/deleteBook/{bookId}")
public String deleteBook(@PathVariable("bookId") int id){
bookService.deleteBookById(id);
return "redirect:/book/allBook";
}
// 查询书籍
@RequestMapping("/queryBook")
public String queryBook(String queryBookName,Model model){
Books books = bookService.queryBookByName(queryBookName);
List<Books> list=new ArrayList<Books>();
list.add(books);
if (books==null){
list=bookService.queryAllBook();
model.addAttribute("error","未查到");
}
model.addAttribute("list",list);
return "allBook";
}
}
2、创建web
-
在项目文件处右击鼠标，点击Add Framework Supprot…
-
勾选Web Application，点击OK按键
-
web文件显示有蓝点说明操作成功
-
在web.WEB-INF文件夹中创建jsp文件夹，用于编写前端页面
3、编写首页
index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>首页</title>
<style>
a{
text-decoration: none;
color: white;
font-size: 40px;
}
body{
background-color: darkcyan;
}
h3{
width: 180px;
height: 180px;
margin: 280px auto;
text-align: center;
line-height: 180px;
background: darkgray;
border-radius: 50px;
box-shadow: 10px 10px #696969;
border: 1px ;
}
</style>
</head>
<body>
<h3>
<a href="${pageContext.request.contextPath}/book/allBook">书籍页面</a>
</h3>
</body>
</html>
4、书籍列表页面
allbook.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>书籍展示</title>
<link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head><body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>书籍列表----显示所有数据</small>
</h1>
</div>
</div>
<div class="row">
<div class="col-md-4 column">
<form class="form-inline" action="${pageContext.request.contextPath}/book/queryBook" method="post">
<span style="color: red;font-weight: bold;">${error}</span>
<input type="text" name="queryBookName" class="form-control" placeholder="请输入要查询的书籍名称">
<input type="submit" value="查询" class="btn btn-primary">
</form>
</div>
<div class="form-inline">
<%-- pageContext.request.contextPath}是JSP取得绝对路径的方法--%>
<a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook" style="float:right">新增书籍</a>
</div>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<table class="table table-hover table-striped">
<thead>
<tr>
<th>书籍名称</th>
<th>书籍数量</th>
<th>书籍详情 </th>
<th>操作</th>
</tr>
</thead>
<tbody>
<c:forEach var="book" items="${list}">
<tr>
<td>${book.bookName}</td>
<td>${book.bookCounts}</td>
<td>${book.detail}</td>
<td>
<a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.bookID}">修改</a>
|
<a href="${pageContext.request.contextPath}/book/deleteBook/${book.bookID}">删除</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
</div>
</body>
</html>
5、添加书籍页面
addBook.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
<link href="https://cdn.staticfile.org/twitter-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>
<small>新增书籍</small>
</h1>
</div>
</div>
</div>
<form action="${pageContext.request.contextPath}/book/addBook" method="post">
<div class="form-group">
<label>书籍名称</label>
<input type="text" name="bookName" class="form-control" required>
</div>
<div class="form-group">
<label>书籍数量</label>
<input type="text" name="bookCounts" class="form-control" required>
</div>
<div class="form-group">
<label>书籍详情</label>
<input type="text" name="detail" class="form-control" required>
</div>
<div class="form-group">
<input type="submit" class="btn btn-primary" value="添加">
</div>
</form>
</div>
</body>
</html>
6、修改书籍页面
updateBook.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
<link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>修改书籍</small>
</h1>
</div>
</div>
</div>
<form action="${pageContext.request.contextPath}/book/updateBook" method="post">
<input type="hidden" name="bookID" value="${QBooks.bookID}">
<div class="form-group">
<label>书籍名称</label>
<input type="text" name="bookName" class="form-control" value="${QBooks.bookName}" required>
</div>
<div class="form-group">
<label>书籍数量</label>
<input type="text" name="bookCounts" class="form-control" value="${QBooks.bookCounts}" required>
</div>
<div class="form-group">
<label>书籍详情</label>
<input type="text" name="detail" class="form-control" value="${QBooks.detail}" required>
</div>
<div class="form-group">
<input type="submit" class="form-control" value="修改">
</div>
</form>
</div>
</body>
</html>
7、删除书籍功能
-
写Dao层接口
BookMapper.java
//删除一本书
int deleteBookById(@Param("bookId") int id);
-
写出查询数据的sql语句
通过mapper namespace="com.shu.dao.BookMapper"绑定到BookMapper接口
BookMapper.xml
<delete id="deleteBookById" parameterType="int">
delete from books where bookID=#{bookId}
delete>
-
写Service层接口
BookService.java
//删除一本书
int deleteBookById( int id);
- 写实现类
BookServiceImpl
public int deleteBookById(int id) {
return bookMapper.deleteBookById(id);
}
-
在BookController中写实现方法
BookController.java
通过controller层调service层
// controller层调service层
@Autowired
@Qualifier("BookServiceImpl")
private BookService bookService;
删除书籍方法
// 删除书籍
@RequestMapping("/deleteBook/{bookId}")
public String deleteBook(@PathVariable("bookId") int id){
bookService.deleteBookById(id);
return "redirect:/book/allBook"; //完成删除之后返回到book下的allBook页面
}
- 在前端定义删除按钮并实现功能
allBook.jsp
<a href="${pageContext.request.contextPath}/book/deleteBook/${book.bookID}">删除</a>
${pageContext.request.contextPath}是jsp中定义绝对路径的方法
${book.bookID}为点击删除之后向后台传回的bookID数据，从而可以删除指定书籍的功能
为什么要介绍删除书籍功能？
其实这是介绍了新增一个功能所有的流程，在框架搭建好之后，完成某个功能就变得异常简单，只需要在不同的模块增添新的代码即可。