这篇文章主要为大家展示了“Java如何整合模板彻底解决ssm配置问题”，内容简而易懂，条理清晰，希望能够帮助大家解决疑惑，下面让小编带领大家一起研究并学习一下“Java如何整合模板彻底解决ssm配置问题”这篇文章吧。
Spring+SpringMVC+Mybatis
环境配置
IDEA
MySQL 5.7
Tomcat 8.5
Maven 3.6
创建数据库
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');
编写数据库对应的实体类com.longdi.pojo.Books
导入lombok在pom.xml中
package com.longdi.pojo; import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; /** * @author: 龍弟 * @description * @date: 2021/9/27 20:22 */ @Data @AllArgsConstructor @NoArgsConstructor public class Books { private int bookID; private String bookName; private int bookCounts; private String detail; }导入相关的pom依赖
<dependencies> <!--Junit--> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <!--数据库驱动--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.47</version> </dependency> <!-- 数据库连接池 --> <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</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!--Mybatis--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.5.2</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>2.0.2</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.4</version> </dependency> <!--Spring--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.1.9.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>5.1.9.RELEASE</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.16</version> <scope>compile</scope> </dependency> </dependencies>
资源过滤设置
<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>
Mybatis层编写
创建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> <settings> <setting name="logImpl" value="STDOUT_LOGGING"/> </settings> <typeAliases> <package name="com.longdi.pojo"/> </typeAliases> <mappers> <mapper class="com.longdi.dao.BookMapper"/> </mappers> </configuration>
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
编写Dao层的Mapper接口
package com.longdi.dao; import com.longdi.pojo.Books; import org.apache.ibatis.annotations.Param; import java.util.List; /** * @author: 龍弟 * @description * @date: 2021/9/27 20:32 */ public interface BookMapper { //增加一本书 int addBook(Books books); //删除一本书 int deleteBookById(@Param("bookId") int id); //更新一本书 int updateBook(Books books); //查询一本书 Books queryBookById(@Param("bookId")int id); //查询全部的书 List<Books> queryAllBook(); Books queryBookByName(@Param("bookName")String bookName); }编写接口对应的 Mapper.xml 文件。需要导入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.longdi.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>编写Service层的接口
package com.longdi.service; import com.longdi.pojo.Books; import java.util.List; /** * @author: 龍弟 * @description * @date: 2021/9/27 21:03 */ public interface BookService { //增加一本书 int addBook(Books books); //删除一本书 int deleteBookById( int id); //更新一本书 int updateBook(Books books); //查询一本书 Books queryBookById(int id); //查询全部的书 List<Books> queryAllBook(); Books queryBookByName(String bookName); }Service层的实现类
package com.longdi.service; import com.longdi.dao.BookMapper; import com.longdi.pojo.Books; import org.springframework.stereotype.Service; import java.util.List; /** * @author: 龍弟 * @description * @date: 2021/9/27 21:05 */ public class BookServiceImpl implements BookService{ private BookMapper bookMapper; public void setBookMapper(BookMapper bookMapper) { this.bookMapper = bookMapper; } public int addBook(Books 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整合Mybatis spring-dao.xml
以下为spring层
<?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"> <!-- 配置整合mybatis --> <!-- 1.关联数据库文件 --> <context:property-placeholder location="classpath:database.properties"/> <!-- 2.数据库连接池 --> <!--数据库连接池 dbcp 半自动化操作 不能自动连接 c3p0 自动化操作（自动的加载配置文件 并且设置到对象里面） --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <!-- 配置连接池属性 --> <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连接池的私有属性 --> <property name="maxPoolSize" value="30"/> <property name="minPoolSize" value="10"/> <!-- 关闭连接后不自动commit --> <property name="autoCommitOnClose" value="false"/> <!-- 获取连接超时时间 --> <property name="checkoutTimeout" value="10000"/> <!-- 当获取连接失败重试次数 --> <property name="acquireRetryAttempts" value="2"/> </bean> <!-- 3.配置SqlSessionFactory对象 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 注入数据库连接池 --> <property name="dataSource" ref="dataSource"/> <!-- 配置MyBaties全局配置文件:mybatis-config.xml --> <property name="configLocation" value="classpath:mybatis-config.xml"/> </bean> <!-- 4.配置扫描Dao接口包，动态实现Dao接口注入到spring容器中 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!-- 注入sqlSessionFactory --> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> <!-- 给出需要扫描Dao接口包 --> <property name="basePackage" value="com.longdi.dao"/> </bean> </beans>spring-service.xml文件
<?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 http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 扫描service相关的bean --> <context:component-scan base-package="com.longdi.service" /> <!--BookServiceImpl注入到IOC容器中--> <bean id="BookServiceImpl" class="com.longdi.service.BookServiceImpl"> <property name="bookMapper" ref="bookMapper"/> </bean> <!-- 配置事务管理器 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <!-- 注入数据库连接池 --> <property name="dataSource" ref="dataSource" /> </bean> <!--aop事物支持--> <!--结合aop实现事物的织入--> <!--配置事物的通知--> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="*" propagation="REQUIRED"/> </tx:attributes> </tx:advice> <!--配置事物切入--> <aop:config> <aop:pointcut id="txPointCut" expression="execution(* com.longdi.dao.*.*(..))"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/> </aop:config> </beans>
以下为SpringMVC层
配置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>
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: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 https://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!-- 配置SpringMVC --> <!-- 1.开启SpringMVC注解驱动 --> <mvc:annotation-driven /> <!-- 2.静态资源默认servlet配置--> <mvc:default-servlet-handler/> <!-- 3.配置jsp 显示ViewResolver视图解析器 --> <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> <!-- 4.扫描web相关的bean --> <context:component-scan base-package="com.longdi.controller" /> </beans>
Spring配置整合文件，创建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="spring-dao.xml"/> <import resource="spring-service.xml"/> <import resource="spring-mvc.xml"/> </beans>
以上为SSM的环境配置，下面编写Controller层和视图层，实现书籍的CRUD功能
controller层 书籍的增删改查功能
import java.util.ArrayList; import java.util.List; /** * @author: 龍弟 * @description * @date: 2021/9/27 22:47 */ @Controller @RequestMapping("/book") public class BookController { @Autowired @Qualifier("BookServiceImpl") private BookService bookService; @RequestMapping("/allBook") public String list(Model model) { List<Books> list = bookService.queryAllBook(); model.addAttribute("list", list); return "allBook"; } //跳转到增加书籍页面 @RequestMapping("/toAddBook") public String toAddPaper(){ return "addBook"; } //添加书籍的请求 @RequestMapping("/addBook") public String addBook(Books books){ System.out.println("addBook=>"+books); bookService.addBook(books); return "redirect:/book/allBook"; } //跳转到修改页面 @RequestMapping("toUpdateBook") public String toUpdatePaper(int id,Model model){ Books books = bookService.queryBookById(id); model.addAttribute("book",books); return "updateBook"; } //修改书籍 @RequestMapping("updateBook") public String updateBook(Books books){ System.out.println("updateBook=>"+books); int i=bookService.updateBook(books); if(i>0){ System.out.println("添加books成功"+books); } return "redirect:/book/allBook"; } //删除书籍 @RequestMapping("/deleteBook/{bookId}") public String deleBook(@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); System.err.println("queryBook=>"+books); 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"; } }编写首页index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %> <!DOCTYPE HTML> <html> <head> <title>首页</title> <style> a{ text-decoration: none; color:black; font-size:18px; } h4{ width:180px; height:38px; margin: 100px auto; text-align: center; line-height: 38px; background: deepskyblue; border-radius: 4px; } </style> </head> <h4> <a href="${pageContext.request.contextPath}/book/allBook" rel="external nofollow" rel="external nofollow" >进入到书籍页面</a> </h4> </body> </html>编写书籍列表页面allBook.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>书籍列表</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- 引入 Bootstrap --> <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="stylesheet"> </head> <body> <div class="container"> <div class="row clearfix"> <div class="col-md-12 column"> <div class="page-header"> <h2> <small>书籍列表 —— 显示所有书籍</small> </h2> </div> </div> </div> <div class="row"> <div class="col-md-4 column"> <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook" rel="external nofollow" >新增书籍</a> <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook" rel="external nofollow" rel="external nofollow" >显示全部书籍</a> </div> <div class="col-md-4 column"> <div class="col-md-8 column"></div> <%--查询书籍--%> <form class="form-inline" action="${pageContext.request.contextPath}/book/queryBook" method="post" > <span >${error}</span> <input type="text" name="queryBookName" class="form-control" placeholder="请输入要查询的书籍名称"> <input type="submit" value="查询" class="btn btn-primary"/> </form> </div> </div> <div class="row clearfix"> <div class="col-md-12 column"> <table class="table table-hover table-striped"> <thead> <tr> <th>书籍编号</th> <th>书籍名字</th> <th>书籍数量</th> <th>书籍详情</th> <th>操作</th> </tr> </thead> <tbody> <c:forEach var="book" items="${requestScope.get('list')}"> <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()}" rel="external nofollow" >更改</a> | <a href="${pageContext.request.contextPath}/book/deleteBook/${book.getBookID()}" rel="external nofollow" >删除</a> </td> </tr> </c:forEach> </tbody> </table> </div> </div> </div>
添加书籍页面 addBook.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="external nofollow" rel="external nofollow" rel="external nofollow" rel="stylesheet"> </head> <body> <div class="container"> <div class="row clearfix"> <div class="col-md-12 column"> <div class="page-header"> <h2> <small>新增书籍</small> </h2> </div> </div> </div> <form action="${pageContext.request.contextPath}/book/addBook" method="post"> 书籍名称：<input type="text" name="bookName"><br><br><br> 书籍数量：<input type="text" name="bookCounts"><br><br><br> 书籍详情：<input type="text" name="detail"><br><br><br> <input type="submit" value="添加"> </form> </div>修改书籍页面 updateBook.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>修改信息</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- 引入 Bootstrap --> <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="stylesheet"> </head> <body> <div class="container"> <div class="row clearfix"> <div class="col-md-12 column"> <div class="page-header"> <h2> <small>修改信息</small> </h2> </div> </div> </div> <form action="${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>
项目部署到tomcat中
项目结构图
以上是“Java如何整合模板彻底解决ssm配置问题”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注亿速云行业资讯频道！
免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
