SSMBuild
1. 基本环境搭建
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编写数据库
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'); -
导入依赖(看常用配置文件)
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资源文件导出问题(看常用配置文件)
2. 编写Model层
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编写db.properties
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8 jdbc.username=root jdbc.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> <typeAliases> <package name="com.iandf.pojo"/> </typeAliases> <mappers> <mapper class="com.iandf.dao.BooksMapper"/> </mappers> </configuration> -
编写实体类
public class Books { private int bookID; private String bookName; private int bookCounts; private String detail; } -
编写Mapper接口
public interface BooksMapper { //添加一本书 int addBooks(Books books); //删除一本书 int deleteBooksByID(@Param("bookID") int id); //更新一本书 int updateBooks(Books books); //查询一本书 Books queryBooksByID(@Param("bookID") int id); //查询所有书 List<Books> getBooksList(); } -
编写mapper.xml
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.iandf.dao.BooksMapper"> <insert id="addBooks" parameterType="books"> insert into ssmbuild.books(bookID, bookName, bookCounts, detail) VALUES (#{bookID},#{bookName},#{bookCounts},#{detail}) </insert> <delete id="deleteBooksByID" parameterType="_int"> delete from ssmbuild.books where bookID = #{bookID}; </delete> <update id="updateBooks" parameterType="books"> update ssmbuild.books set bookCounts = #{bookCounts},bookName = #{bookName},bookCounts = #{bookName} where bookID = #{bookID} </update> <select id="queryBooksByID" parameterType="_int" resultType="books"> select * from ssmbuild.books where bookID = #{bookID} </select> <select id="getBooksList" resultType="books"> select * from ssmbuild.books </select> </mapper> -
spring-dao.xml中注册sqlSessionTemplate
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"/> </bean> -
使用SqlSessionDaoSupport编写BooksMapper的实现类
public class BooksMapperImpl extends SqlSessionDaoSupport implements BooksMapper{ public BooksMapperImpl() { } @Override public int addBooks(Books books) { return getSqlSession().getMapper(BooksMapper.class).addBooks(books); } @Override public int deleteBooksByID(int id) { return getSqlSession().getMapper(BooksMapper.class).deleteBooksByID(id); } @Override public int updateBooks(Books books) { return getSqlSession().getMapper(BooksMapper.class).updateBooks(books); } @Override public Books queryBooksByID(int id) { return getSqlSession().getMapper(BooksMapper.class).queryBooksByID(id); } @Override public List<Books> getBooksList() { return getSqlSession().getMapper(BooksMapper.class).getBooksList(); } } -
在spring-dao.xml中注册BooksMapperImpl
<bean id="booksMapperImpl" class="com.iandf.dao.BooksMapperImpl"> <property name="sqlSessionTemplate" ref="sqlSessionTemplate"/> </bean>
3. 编写service层
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编写service层接口
public interface BooksService { //添加一本书 int addBooks(Books books); //删除一本书 int deleteBooksByID( int id); //更新一本书 int updateBooks(Books books); //查询一本书 Books queryBooksByID(int id); //查询所有书 List<Books> getBooksList(); } -
编写service接口的实现类持有dao层的对象
public class BooksServiceImpl implements BooksService { private final BooksMapper booksMapper; public BooksServiceImpl(BooksMapper booksMapper) { this.booksMapper = booksMapper; } @Override public int addBooks(Books books) { return booksMapper.addBooks(books); } @Override public int deleteBooksByID(int id) { return booksMapper.deleteBooksByID(id); } @Override public int updateBooks(Books books) { return booksMapper.updateBooks(books); } @Override public Books queryBooksByID(int id) { return booksMapper.queryBooksByID(id); } @Override public List<Books> getBooksList() { return booksMapper.getBooksList(); } } -
编写spring-service.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" 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:component-scan base-package="com.iandf.service"/> <bean class="com.iandf.service.BooksServiceImpl" id="booksService"> <constructor-arg name="booksMapper" ref="booksMapperImpl"/> </bean> </beans>
4. 整合spring-mvc
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添加web框架支持
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编写web.xml
<?xml version="1.0" encoding="UTF-8"?> <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"> <!--DispatcherServlet--> <servlet> <servlet-name>DispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <!--一定要注意:我们这里加载的是总的配置文件，之前被这里坑了！--> <param-value>classpath:applicationContext.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>DispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--encodingFilter--> <filter> <filter-name>encodingFilter</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>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--Session过期时间--> <session-config> <session-timeout>15</session-timeout> </session-config> </web-app> -
编写spring_mvc.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: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/context https://www.springframework.org/schema/context/spring-context.xsd"> <!--1.开启注解驱动支持--> <mvc:annotation-driven/> <!--2.不过滤静态资源访问--> <mvc:default-servlet-handler/> <!--3.配置视图解析器--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> </bean> <!-- 4.扫描web相关的bean --> <context:component-scan base-package="com.iandf.controller" /> </beans> -
把spring-dao.xml spring_service.xml spring_mvc.xml整合到applicationContext.xml中
<import resource="spring-dao.xml"/> <import resource="spring_service.xml"/> <import resource="spring_mvc.xml"/>
配置文件到此结束
5. 实现书籍的增删改查
5.1 展示所有书籍
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allBooks.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>书籍列表</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- 引入 Bootstrap --> <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> <small>书籍列表 —— 显示所有书籍</small> </h1> </div> </div> </div> <div class="row"> <div class="col-md-4 column"> <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增</a> </div> </div> <div class="row clearfix"> <div class="col-md-12 column"> <table class="table table-hover table-striped"> <thead> <tr> <th>书籍编号</th> <th>书籍名字</th> <th>书籍数量</th> <th>书籍详情</th> <th>操作</th> </tr> </thead> <tbody> <c:forEach var="book" items="${requestScope.get('booksList')}"> <tr> <td>${book.getBookID()}</td> <td>${book.getBookName()}</td> <td>${book.getBookCounts()}</td> <td>${book.getDetail()}</td> <td> <a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.getBookID()}">更改</a> | <a href="${pageContext.request.contextPath}/book/del/${book.getBookID()}">删除</a> </td> </tr> </c:forEach> </tbody> </table> </div> </div> </div> -
BooksController
@RequestMapping("/allBook") public String getBooksList(Model model){ List<Books> booksList = booksService.getBooksList(); model.addAttribute("booksList",booksList); return "allBooks"; }
5.2 添加书籍
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allBooks.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>新增书籍</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- 引入 Bootstrap --> <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> <small>新增书籍</small> </h1> </div> </div> </div> <form action="${pageContext.request.contextPath}/book/addBook" method="post"> 书籍名称：<input type="text" name="bookName"><br><br><br> 书籍数量：<input type="text" name="bookCounts"><br><br><br> 书籍详情：<input type="text" name="detail"><br><br><br> <input type="submit" value="添加"> </form> </div> -
BooksController
@RequestMapping("/toAddBook") public String toAddPaper() { return "addBook"; } @RequestMapping("/addBook") public String addPaper(Books books) { System.out.println(books); booksService.addBooks(books); return "redirect:/book/allBook"; }
5.3 修改书籍
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updateBook.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>修改信息</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- 引入 Bootstrap --> <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"> </head> <body> <div class="container"> <div class="row clearfix"> <div class="col-md-12 column"> <div class="page-header"> <h1> <small>修改信息</small> </h1> </div> </div> </div> <form action="${pageContext.request.contextPath}/book/updateBook" method="post"> <input type="hidden" name="bookID" value="${book.getBookID()}"/> 书籍名称：<input type="text" name="bookName" value="${book.getBookName()}"/> 书籍数量：<input type="text" name="bookCounts" value="${book.getBookCounts()}"/> 书籍详情：<input type="text" name="detail" value="${book.getDetail()}"/> <input type="submit" value="提交"/> </form> </div> -
BooksController
@RequestMapping("/toUpdateBook") public String roUpdateBook(Model model,int id){ Books books = booksService.queryBooksByID(id); model.addAttribute("book",books); return "updateBook"; } @RequestMapping("/updateBook") public String updateBook(Books book){ booksService.updateBooks(book); return "redirect:/book/allBook"; }
5.4 删除书籍
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BooksController
@RequestMapping("/del/{bookID}") public String deleteBook(@PathVariable("bookID") int id){ booksService.deleteBooksByID(id); return "redirect:/book/allBook"; }