ssm整合入门 超详细
ssm整合：
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创建工程
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选择maven
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选设置文件、仓库位置，添加property解决项目加载过慢的问题
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创建完整的项目目录
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在pom.xml文件中导入坐标版本、依赖
<?xml version="1.0" encoding="UTF-8"?> <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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>org.example</groupId> <artifactId>ssm_test_02</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>ssm_test_02 Maven Webapp</name> <!-- FIXME change it to the project's website --> <url>http://www.example.com</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <spring.version>5.0.2.RELEASE</spring.version> <slf4j.version>1.6.6</slf4j.version> <log4j.version>1.2.12</log4j.version> <mysql.version>8.0.16</mysql.version> <mybatis.version>3.4.5</mybatis.version> </properties> <dependencies> <!-- spring --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.6.8</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <!-- 单元测试--> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>compile</scope> </dependency> <!-- 数据库--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.version}</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- 日志 log start --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- log end--> <!-- mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.0</version> </dependency> <!-- 数据库连接池--> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> <type>jar</type> <scope>compile</scope> </dependency> </dependencies> <build> <finalName>ssm_test_02</finalName> <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) --> <plugins> <plugin> <artifactId>maven-clean-plugin</artifactId> <version>3.1.0</version> </plugin> <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging --> <plugin> <artifactId>maven-resources-plugin</artifactId> <version>3.0.2</version> </plugin> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.0</version> </plugin> <plugin> <artifactId>maven-surefire-plugin</artifactId> <version>2.22.1</version> </plugin> <plugin> <artifactId>maven-war-plugin</artifactId> <version>3.2.2</version> </plugin> <plugin> <artifactId>maven-install-plugin</artifactId> <version>2.5.2</version> </plugin> <plugin> <artifactId>maven-deploy-plugin</artifactId> <version>2.8.2</version> </plugin> </plugins> </pluginManagement> </build> </project>-
在domain下创建实体类Account方法，生成get、set和tostring方法
package com.xl.domain; import java.io.Serializable; public class Account implements Serializable { //id private int id; //姓名 private String name; //金额 private double money; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public double getMoney() { return money; } public void setMoney(double money) { this.money = money; } @Override public String toString() { return "Account{" + "id=" + id + ", name='" + name + '\'' + ", money=" + money + '}'; } } -
在resources下创建日志文件 log4j.properties
log4j.rootLogger=INFO, Console log4j.appender.Console=org.apache.log4j.ConsoleAppender log4j.appender.Console.layout=org.apache.log4j.PatternLayout log4j.appender.Console.layout.ConversionPattern=%-5p - %m%n -
选择tomcat服务器
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搭建和测试sprigMvc的开发环境
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在web.xml中配置DispatcherServlet、配置中文乱码
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app> <display-name>Archetype Created Web Application</display-name> <!--配置前端控制器--> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--配置初始化参数，创建完DispatcherServlet对象后，就加载springmvc.xml配置文件--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <!--服务器启动的时候，就创建DispatcherServlet对象--> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--配置解决中文乱码的过滤器--> <filter> <filter-name>characterEncodingFilter</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>characterEncodingFilter</filter-name> <url-pattern>/*
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在resource下创建springmvc.xml的配置 开启对controller注解的扫描、配置试图解析器、设置静态资源不过滤、开启对springmvc注解的支持
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" 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 http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!--开启注解扫描，springmvc只负责扫描controller注解--> <context:component-scan base-package="com.xl"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!--配置试图解析器--> <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/"/> <property name="suffix" value=".jsp"/> </bean> <!--配置静态资源不过滤--> <mvc:resources mapping="/css/**" location="/css/"/> <mvc:resources mapping="/images/**" location="/images/"/> <mvc:resources mapping="/js/**" location="/js/"/> <!--开启spirngmvc注解的支持--> <mvc:annotation-driven/> </beans> -
在contoller下创建AccountController.java ,编写增删查改方法
package com.xl.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller @RequestMapping("/accounts") public class AccountContoller { //查询所有账户 @RequestMapping("/findAll") public String findAll(){ System.out.println("web层，查询所有账户"); return "allcounts"; } //根据id查询账户 @RequestMapping("/findBuid") public String findBuid(){ System.out.println("web层，根据id查询账户"); return "allcounts"; } //增加账户 @RequestMapping("/insertAccount") public String insertAccount(){ System.out.println("web层，增加账户"); return "allcounts"; } //删除账户 @RequestMapping("/deleteAccount") public String deleteAccount(){ System.out.println("web层，删除账户"); return "allcounts"; } //修改账户 @RequestMapping("/updateAccount") public String updateAccount(){ System.out.println("web层，修改账户"); return "allcounts"; } } -
编写inex.jsp页面,提交的链接对应AccountController的方法名称
<%-- Created by IntelliJ IDEA. User: Administrator Date: 2020/11/13 Time: 21:11 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> <a href="accounts/findAll">查询所有账户</a> <br> <form action="accounts/findBuid"> 要查询账户的id：<input type="text" name="id"> <input type="submit" value="提交"> </form><br> <form action="accounts/insertAccount"> 要添加账户的信息： <input type="text" name="name"><br> <input type="text" name="money"><br> <input type="submit" value="提交"> </form><br> <form action="accounts/deleteAccount"> 要删除账户的id：<input type="text" name="id"> <input type="submit" value="提交"> </form><br> <form action="accounts/updateAccount"> 要修改的账户的信息为： <input type="text" name="name"><br> <input type="text" name="money"><br> <input type="submit" value="提交"> </form> </body> </html> -
在pages下面创建成功跳转页面 allcount.jsp
<%-- Created by IntelliJ IDEA. User: Administrator Date: 2020/11/13 Time: 21:09 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> <h1>加载成功！！！</h1> </body> </html> -
运行测试 均成功
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搭建spirng层并整合springmvc层
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在serice包下创建IAccountService接口
package com.xl.service; import com.xl.domain.Account; import org.springframework.web.servlet.view.InternalResourceViewResolver; import java.util.List; public interface IAccountService { //查询所有账户 List<Account> findAll(); //根据id查询账户 Account findById(Integer id); //增加账户 void insertAccount(Account account); //删除账户 void deleteAccount(Integer id); //修改账户信息 void updateAccount(Account account); } -
在service包下创建包impl并创建实现类AccountServiceImpl.java
package com.xl.service.impl; import com.xl.domain.Account; import com.xl.service.IAccountService; import java.util.List; @Service public class AccountServiceImp implements IAccountService { @Override public List<Account> findAll() { System.out.println("service层，查询所有账户"); return null; } @Override public Account findById(Integer id) { System.out.println("service层，根据id查询账户"); return null; } @Override public void insertAccount(Account account) { System.out.println("service层，增加账户"); } @Override public void deleteAccount(Integer id) { System.out.println("service层，删除账户"); } @Override public void updateAccount(Account account) { System.out.println("service层，更新账户"); } } -
在resource下新建spring的核心配置文件applicationContext.xml ，开启扫描，需要扫描service和dao层
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:p="http://www.springframework.org/schema/p" xmlns:util="http://www.springframework.org/schema/util" xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:cache="http://www.springframework.org/schema/cache" xsi:schemaLocation=" http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd"> <!--配置spring要扫描的包，其中不包括coontroller--> <context:component-scan base-package="com.xl"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> </beans> -
在web.xml文件下配置监听器，让服务器运行时，触发监听器，监听器帮我们加载applicatioContext.xml配置文件
<!--配置spirng的监听器--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!--设置spring核心配置文件的路径--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> -
在AccountController下注入service实现整合
package com.xl.controller; import com.xl.domain.Account; import com.xl.service.impl.AccountServiceImp; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller @RequestMapping("/counts") public class AccountContoller { //注入service的实现类 @Autowired private AccountServiceImp accountServiceImp; //查询所有账户 @RequestMapping("/findAll") public String findAll(){ System.out.println("web层，查询所有账户"); accountServiceImp.findAll(); return "allcounts"; } //根据id查询账户 @RequestMapping("/findBuid") public String findBuid(Integer id){ System.out.println("web层，根据id查询账户"); accountServiceImp.findById(id); return "allcounts"; } //增加账户 @RequestMapping("/insertAccount") public String insertAccount(Account account){ System.out.println("web层，增加账户"); accountServiceImp.insertAccount(account); return "allcounts"; } //删除账户 @RequestMapping("/deleteAccount") public String deleteAccount(Integer id){ System.out.println("web层，删除账户"); accountServiceImp.deleteAccount(id); return "allcounts"; } //修改账户 @RequestMapping("/updateAccount") public String updateAccount(Account account){ System.out.println("web层，修改账户"); accountServiceImp.updateAccount(account); return "allcounts"; } } -
运行测试整合成功
创建mybatis层，整合spring
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在applicationContext.xml文件中加入mybatis的配置：连接池、sqlSessionFactory工厂、dao接口所在的包、配置事务通知、配置aop
<!--spring整合mybatis框架--> <!--配置连接池--> <bean id="mySql" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value="com.mysql.jdbc.Driver"/> <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ssm?serverTimezone=Asia/Shanghai&characterEncoding=UTF8"/> <property name="user" value="root"/> <property name="password" value="123456"/> </bean> <!--配置sqlSessionFactory--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="mySql"/> </bean> <!--配置AccountDao接口所在的包--> <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.xl.dao"></property> </bean> <!--配置声明式事务管理--> <!--配置事务管理--> <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="mySql"></property> </bean> <!--配置事务通知--> <tx:advice id="txAdvice" transaction-manager="dataSourceTransactionManager"> <tx:attributes> <tx:method name="find*" read-only="true"/> <tx:method name="*" isolation="DEFAULT"/> </tx:attributes> </tx:advice> <!--配置aop--> <aop:config> <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.xl.service.impl.AccountServiceImp.*(..))"/> </aop:config> -
在dao包下新建IAccountDao接口，加上对应的sql语句注解
package com.xl.dao; import com.xl.domain.Account; import org.apache.ibatis.annotations.Delete; import org.apache.ibatis.annotations.Insert; import org.apache.ibatis.annotations.Select; import org.apache.ibatis.annotations.Update; import org.springframework.stereotype.Service; import java.util.List; public interface IAccountDao { //查询所有账户 @Select("select * from account ") List<Account> findAll(); //根据id查询账户 @Select("select * from where account id = #{id}") Account findById(int id); //增加账户 @Insert("insert into account (name,money) values (#{name},#{money}) ") void insertAccount(Account account); //删除账户 @Delete("delete from account where id = #{id}") void deleteAccount(Integer id); //修改账户信息 @Update("update account set name = #{name},money=#{money}") void updateAccount(Account account); } -
在service中的AccountServiceImpl方法中注入dao
package com.xl.service.impl; import com.xl.dao.IAccountDao; import com.xl.domain.Account; import com.xl.service.IAccountService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import java.util.List; @Service public class AccountServiceImp implements IAccountService { @Autowired private IAccountDao iAccountDao; @Override public List<Account> findAll() { System.out.println("service层，查询所有账户"); return iAccountDao.findAll(); } @Override public Account findById(Integer id) { System.out.println("service层，根据id查询账户"); return iAccountDao.findById(id); } @Override public void insertAccount(Account account) { System.out.println("service层，增加账户"); iAccountDao.insertAccount(account); } @Override public void deleteAccount(Integer id) { System.out.println("service层，删除账户"); iAccountDao.deleteAccount(id); } @Override public void updateAccount(Account account) { System.out.println("service层，更新账户"); iAccountDao.updateAccount(account); } }- 在AccountController中完善具体接受代码，因为现在是可以真的查询到后台数据了。
package com.xl.controller; import com.xl.domain.Account; import com.xl.service.impl.AccountServiceImp; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.util.List; @Controller @RequestMapping("/accounts") public class AccountContoller { @Autowired private AccountServiceImp accountServiceImp; //查询所有账户 @RequestMapping("/findAll") public String findAll(Model model){ System.out.println("web层，查询所有账户"); List<Account> accounts = accountServiceImp.findAll(); model.addAttribute("accounts",accounts); return "allcounts"; } //根据id查询账户 @RequestMapping("/findBuid") public String findBuid(Integer id,Model model){ System.out.println("web层，根据id查询账户"); Account account = accountServiceImp.findById(id); model.addAttribute("account",account); return "account"; } //增加账户 @RequestMapping("/insertAccount") public void insertAccount(Account account, HttpServletRequest request, HttpServletResponse response) throws Exception { System.out.println("web层，增加账户"); accountServiceImp.insertAccount(account); response.sendRedirect(request.getContextPath()+"/accounts/findAll"); } //删除账户 @RequestMapping("/deleteAccount") public void deleteAccount(Integer id, HttpServletRequest request, HttpServletResponse response) throws Exception{ System.out.println("web层，删除账户"); accountServiceImp.deleteAccount(id); response.sendRedirect(request.getContextPath()+"/accounts/findAll"); } //修改账户 @RequestMapping("/updateAccount") public void updateAccount(Account account,HttpServletRequest request, HttpServletResponse response) throws Exception{ System.out.println("web层，修改账户"); accountServiceImp.updateAccount(account); response.sendRedirect(request.getContextPath()+"/accounts/findAll"); } } -
在返回加载页面allcounts.jsp[中加入显示数据的代码，
<%-- Created by IntelliJ IDEA. User: Administrator Date: 2020/11/13 Time: 21:09 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <html> <head> <title>Titletitle> head> <body> h1>加载成功！！！h1><br> <h2>所有用户数据如下：h2><br> <c:forEach items="${accounts}" var="account"> id ：${account.id}<br> 姓名：${account.name}<br> 金额：${account.money}<br> <br> c:forEach> body> html>另外查询单个需要单独另一个页面进行显示
<%-- Created by IntelliJ IDEA. User: Administrator Date: 2020/11/14 Time: 10:03 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <html> <head> <title>Titletitle> head> <body> id为${account.id}的账户数据信息如下：<br> 姓名：${account.name}<br> 金额：${account.money}<br> <br> body> html>6.测试成功
