SpringMVC：ssm整合
阿新 • • 發佈：2021-09-08
環境要求
環境：IDEA、MySQL5.7.19、Tomact8.5、Mavec3.6.1
資料庫環境
CREATE DATABASE `ssmbuild`;
USE `ssmbuild`;
DROP TABLE IF EXISTS `books`;
CREATE TABLE `books` (
`bookID` int(10) NOT NULL AUTO_INCREMENT COMMENT '書id',
`bookName` varchar(100) NOT NULL COMMENT '書名',
`bookCounts` int(11) NOT NULL COMMENT '數量',
`detail` varchar(200) NOT NULL COMMENT '描述',
PRIMARY KEY (`bookID`),
KEY `bookID` (`bookID`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;
INSERT INTO `books` VALUES ('1', 'Java', '1213', '從入門到放棄');
INSERT INTO `books` VALUES ('2', 'MySQL', '212', '從刪庫到跑路');
INSERT INTO `books` VALUES ('3', 'Linux', '1231', '從進門到進牢');
基本環境搭建
1.新建Maven專案，ssmbuild，新增web的支援
2.匯入相關的pom依賴
<!--依賴：junit,資料庫驅動,連線池,servlet,jsp,mybatis,mybatis-spring,spring-->
<dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.13</version> </dependency> <!--資料庫驅動--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.25</version> </dependency> <!--資料庫連線池:c3p0--> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.5.2</version> </dependency> <!--Servlet-JSP--> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.2</version> </dependency> <dependency> <groupId>javax.servlet.jsp.jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!--Mybatis--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.5.7</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>2.0.6</version> </dependency> <!--Spring--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.3.9</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>5.3.9</version> </dependency> </dependencies>
3.Maven資源過濾設定
<!--靜態資源匯出問題--> <build> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.properties</include> <include>**/*.xml</include> </includes> <filtering>false</filtering> </resource> <resource> <directory>src/main/resources</directory> <includes> <include>**/*.properties</include> <include>**/*.xml</include> </includes> <filtering>false</filtering> </resource> </resources> </build>
4.建立基本結構和配置框架！
- com.yyw.pojo
- com.yyw.dao
- com.yyw.service
- com.yyw.controller
- 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> </configuration>
- applicationContext.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"
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>
Mybatis層編寫
1.資料庫配置檔案database.properties
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?userSSL=true&useUnicode=true&characterEncoding=utf8 jdbc.username=root jdbc.password=wuhui1017
2.IDEA關聯資料庫
3.編寫MyBatis的核心配置檔案
<?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>
<!--配置資料來源，交給Spring去做-->
<typeAliases>
<package name="com.yyw.pojo"/>
</typeAliases>
<mappers>
<mapper class="com.yyw.dao.BookMapper"/>
</mappers>
</configuration>
4.編寫實體類com.yyw.pojo.Books,使用lombok外掛！
package com.yyw.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編寫Dao層的Mapper介面！
package com.yyw.dao;
import com.yyw.pojo.Books;
import org.apache.ibatis.annotations.Param;
import java.util.List;
public interface BookMapper {
//增加
int addBook(Books books);
//刪除
int deleteBookById(@Param("bookId") int id);
//更新
int updateBook(Books books);
//查詢一本書
Books queryBookById(@Param("bookId") int id);
//查詢全部
List<Books> queryAllBook();
//根據書名查詢
Books queryBookByName(@Param("bookName") String bookName);
}
6.編寫對應的Mapper.xml檔案，需要匯入MyBatis的包
<?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.yyw.dao.BookMapper">
<insert id="addBook" parameterType="Books">
insert into ssmbuild.books(bookName,bookCounts,detail)
values (#{bookName},#{bookCounts},#{detail});
</insert>
<delete id="deleteBookById" parameterType="int">
delete from ssmbuild.books
where bookID=#{bookId}
</delete>
<update id="updateBook" parameterType="Books">
update ssmbuild.books set bookName=#{bookName},bookCounts=#{bookCounts},detail=#{detail}
where bookID=#{bookID};
</update>
<select id="queryBookById" resultType="Books">
select * from ssmbuild.books
where bookID=#{bookId}
</select>
<select id="queryAllBook" resultType="Books">
select * from ssmbuild.books
</select>
<select id="queryBookByName" resultType="Books">
select * from ssmbuild.books
where bookName=#{bookName}
</select>
</mapper>
7.編寫Service層的介面和實現類
介面：
package com.yyw.service;
import com.yyw.pojo.Books;
import org.apache.ibatis.annotations.Param;
import java.util.List;
public interface BookService {
//增加
int addBook(Books books);
//刪除
int deleteBookById(int id);
//更新
int updateBook(Books books);
//查詢一本書
Books queryBookById(int id);
//查詢全部
List<Books> queryAllBook();
//根據書名查詢
Books queryBookByName(String bookName);
}
實現類：
package com.yyw.service;
import com.yyw.dao.BookMapper;
import com.yyw.pojo.Books;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class BookServiceImpl implements BookService {
//service調dao層，組合Dao
@Autowired
private BookMapper bookMapper;
public void setBookMapper(BookMapper bookMapper) {
this.bookMapper = bookMapper;
}
public int addBook(Books books) {
System.out.println("BookServiceImpl:addBook=>"+books);
return bookMapper.addBook(books);
}
public int deleteBookById(int id) {
return bookMapper.deleteBookById(id);
}
public int updateBook(Books books) {
System.out.println("BookServiceImpl:updateBook=>"+books);
return bookMapper.updateBook(books);
}
public Books queryBookById(int id) {
return bookMapper.queryBookById(id);
}
public List<Books> queryAllBook() {
return bookMapper.queryAllBook();
}
public Books queryBookByName(String bookName) {
return bookMapper.queryBookByName(bookName);
}
}
Spring層
1.配置Spring整合Mybatis，我們這裡使用c3p0連線池
2.編寫Spring整合MyBatis的相關配置檔案spring-dao.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">
<!--1.關聯資料庫配置檔案-->
<context:property-placeholder location="classpath:database.properties"/>
<!--2.連線池
dbcp:半自動化操作，不能自動連線
c3p0:自動化操作，自動載入配置檔案，並且可以自動設定到物件中
druid:
hikari:
-->
<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}"/>
<!--c3p0連線池的私有屬性-->
<property name="maxPoolSize" value="30"/>
<property name="minPoolSize" value="10"/>
<!--關閉連線後不自動commit-->
<property name="autoCommitOnClose" value="false"/>
<!--獲取連線超時時間-->
<property name="checkoutTimeout" value="10000"/>
<!--當獲取連線失敗重試次數-->
<property name="acquireRetryAttempts" value="2"/>
</bean>
<!--3.sqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!--繫結Mybatis的配置檔案-->
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>
<!--配置dao介面掃描包，動態實現Dao介面可以注入到Spring容器中-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!--注入sqlSessionFactory-->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<!--掃描Dao包-->
<property name="basePackage" value="com.yyw.dao"/>
</bean>
</beans>
3.Spring整合service層
<?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
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
https://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!--1.掃描service下的包-->
<context:component-scan base-package="com.yyw.service"/>
<!--2.將我們的所有業務類，注入到Spring,可以通過配置或者註解實現-->
<bean id="BookServiceImpl" class="com.yyw.service.BookServiceImpl">
<property name="bookMapper" ref="bookMapper"/>
</bean>
<!--3.宣告式事務配置-->
<!--注入資料來源-->
<bean id="TransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!--結合AOP實現事務的織入-->
<!--配置事務通知-->
<tx:advice id="txAdvice" transaction-manager="TransactionManager">
<!--給那些方法配置事務-->
<!--配置事務的傳播特性：new propagation-->
<tx:attributes>
<tx:method name="*" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice>
<!--4.aop事務支援-->
<aop:config>
<aop:pointcut id="txPointCut" expression="execution(* com.yyw.dao.*.*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
</aop:config>
</beans>
SpringMVC層
1.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"> <!--DispatchServlet--> <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:applicationContext.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> <!--亂碼過濾--> <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--> <session-config> <session-timeout>15</session-timeout> </session-config> </web-app>
2.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/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"> <!--1.註解驅動--> <mvc:annotation-driven/> <!--2.靜態資源過濾--> <mvc:default-servlet-handler/> <!--3.掃描包：controller--> <context:component-scan base-package="com.yyw.controller"/> <!--4.檢視解析器--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> </bean> </beans>
3.Spring配置整合檔案，applicationContext.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" 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>
配置檔案暫時結束，Controller和檢視層編寫
1.BookController類編寫
package com.yyw.controller; import com.yyw.pojo.Books; import com.yyw.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 org.springframework.web.bind.annotation.RequestMethod; import javax.servlet.http.HttpServletRequest; import java.util.ArrayList; import java.util.List; @Controller @RequestMapping("/book") public class BookController { //controller調service層 @Autowired @Qualifier("BookServiceImpl") private BookService bookService; //查詢全部書籍，並返回到書籍展示頁面 @RequestMapping("/allBook") public String list(Model model){ List<Books> list = bookService.queryAllBook(); model.addAttribute("list",list); return "allBook"; } //新增書籍 @RequestMapping("/addBook") public String add(){ return "addBook"; } //新增書籍請求 @RequestMapping("/addBook1") public String addBook(Books books){ System.out.println("addBook==>"+books); bookService.addBook(books); return "redirect:/book/allBook";//重定向到allBook } //刪除書籍 @RequestMapping("/deleteBook/{bookId}") public String deleteBook(@PathVariable("bookId") int id){ bookService.deleteBookById(id); return "redirect:/book/allBook"; } //修改書籍 @RequestMapping("/update") public String update(int id,Model model){ Books books = bookService.queryBookById(id); model.addAttribute("QBooks",books); return "updateBook"; } //修改書籍詳情 @RequestMapping("/updateBook") public String updateBook(Books books){ System.out.println("updateBooks=>"+books); int i = bookService.updateBook(books); if (i>0){ System.out.println("新增books成功"+books); } return "redirect:/book/allBook"; } //查詢書籍 @RequestMapping("/query") 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","沒有對應資訊"); } model.addAttribute("list",list); return "allBook"; } }
2.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>書籍展示頁面</title>
<%--BootStrap美化介面--%>
<link href="//cdn.bootcss.com/bootstrap/3.3.1/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>書籍列表——顯示所有書籍</small>
</h1>
</div>
</div>
</div>
<div class="row">
<div class="col-md-4 column">
<a class="btn btn-primary" href="${pageContext.request.contextPath}/book/addBook">新增書籍</a>
<a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">顯示全部書籍</a>
</div>
<div class="col-md-4 column"></div>
<div class="col-md-4 column">
<form action="${pageContext.request.contextPath}/book/query?bookName=${bookName}" method="post" style="float: right" class="form-inline">
<span style="color: red;font-weight:bold ">${error}</span>
<input type="text" name="queryBookName" class="form-control" placeholder="請輸入要查詢的書籍名稱">
<input type="submit" class="btn btn-primary" value="提交">
</form>
</div>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<table class="table table-hover table-striped">
<thead>
<tr>
<th>書籍編號</th>
<th>書籍名稱</th>
<th>書籍數量</th>
<th>書籍詳情</th>
<th>操作</th>
</tr>
</thead>
<%--書籍從資料庫中查找出來，從這個list中遍歷出來：foreach--%>
<tbody>
<c:forEach var="book" items="${list}">
<tr>
<td>${book.bookID}</td>
<td>${book.bookName}</td>
<td>${book.bookCounts}</td>
<td>${book.detail}</td>
<td>
<a class="btn btn-primary" href="${pageContext.request.contextPath}/book/update?id=${book.bookID}">修改</a>
|
<a class="btn btn-primary" href="${pageContext.request.contextPath}/book/deleteBook/${book.bookID}">刪除</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
</body>
</html>
3.add.jsp
<%-- Created by IntelliJ IDEA. User: dell Date: 2021/9/6 Time: 19:12 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>新增書籍</title> <%--BootStrap美化介面--%> <link href="//cdn.bootcss.com/bootstrap/3.3.1/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>新增書籍</small> </h1> </div> </div> </div> <form action="${pageContext.request.contextPath}/book/addBook1" method="post"> <div class="form-group"> <label>書籍名稱：</label><input type="text" name="bookName" class="form-group" required><br> </div> <div class="form-group"> <label>書籍數量：</label><input type="text" name="bookCounts" class="form-group" required><br> </div> <div class="form-group"> <label>書籍描述：</label><input type="text" name="detail" class="form-group" required><br> </div> <div class="form-group"> <input type="submit" class="form-group" value="新增" size="100px"> </div> </form> </div> </body> </html>
4.updatebook.jsp
<%-- Created by IntelliJ IDEA. User: dell Date: 2021/9/7 Time: 16:26 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>修改書籍</title> <%--BootStrap美化介面--%> <link href="//cdn.bootcss.com/bootstrap/3.3.1/css/bootstrap.min.css" rel="stylesheet"> </head> <body> <div class="container"> <div class="row clearfix"> <div class="col-md-12 column"> <div class="page-header"> <h1> <small>修改書籍</small> </h1> </div> </div> </div> <form action="${pageContext.request.contextPath}/book/updateBook" method="post"> <%--出現問題：提交了修改SQL的請求，但修改失敗，初次考慮，是事務問題，配置完畢後，依舊失敗--%> <%--看一下SQL語句，能否執行成功：SQL執行失敗，修改未完成--%> <%--前端傳遞隱藏域--%> <input type="hidden" name="bookID" value="${QBooks.bookID}"> <div class="form-group"> <label>書籍名稱：</label><input type="text" name="bookName" class="form-group" value="${QBooks.bookName}"> </div> <div class="form-group"> <label>書籍數量：</label><input type="text" name="bookCounts" class="form-group" value="${QBooks.bookCounts}"> </div> <div class="form-group"> <label>書籍詳情：</label><input type="text" name="detail" class="form-group" value="${QBooks.detail}"> </div> <div class="form-group"> <input type="submit" class="btn btn-primary" value="確定"> <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">取消</a> </div> </form> </div> </body> </html>
執行，即可完成！