• SSM整合步骤


    SSM- CRUD

    SSM : SpringMVC+Spring+Mybatis

    Create (新建) +Retrieve (查询) +Update(更新)+Delete(删除)

     功能点

    1:分页

    2:数据校验:JQuery前端校验+JSR后端校验。

    3:ajax

    4:Rest风格URL:使用HTTP协议请求方式的动词,来表示对对资源的操作:GET(查询)、POST(新增)、PUT(修改)、DELETE(删除)。

    技术点

    1:基础框架-SSM (SpringMVC+Spring+MyBatis)

    2:数据库-MySQL 5

    3:前端框架-bootstrap快速搭建简洁美观的前端界面。

    4:项目的依赖管理-Maven。

    5:分页插件-pagehelper

    6:逆向工程-MyBatis Generator

    基础环境搭建

    1:创建一个maven工程

    2:引入项目依赖的jar包

    • spring
    • springMVC
    • Mybatis
    • 数据库连接池,驱动包
    • 其它包[  jstl , servlet-api ,  junit ]

    maven 配置文件增加配置

    阿里云下载镜像

     <!-- 中央仓库阿里云镜像下载-->
         <mirror>
          <id>alimaven</id>
          <mirrorOf>central</mirrorOf>
          <name>aliyun maven</name>
          <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
        </mirror>

    版本

      <profile>
          <id>jdk1.8</id>
          <activation>
              <activeByDefault>true</activeByDefault>
                  <jdk>1.8</jdk>
          </activation>
          <repositories>
              <maven.compiler.source>1.8</maven.compiler.source>
              <maven.compiler.target>1.8</maven.compiler.target>
              <maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>   
          </repositories>
        </profile>

    pom.xml

    <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>cn.yi</groupId>
        <artifactId>ssm-crud</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>war</packaging>
    
        <!-- 引入项目依赖的jar包 -->
        <!-- SpringMVC Spring -->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
        <dependencies>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
                <version>4.3.12.RELEASE</version>
            </dependency>
    
            <!-- Spring JDBC -->
            <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>4.3.12.RELEASE</version>
            </dependency>
    
            <!-- Spring aspect 面向切面编程 -->
            <!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aspects</artifactId>
                <version>4.3.12.RELEASE</version>
            </dependency>
    
            <!-- Mybatis -->
            <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>3.4.2</version>
            </dependency>
    
            <!-- Mybatis Spring 整合适配包 -->
            <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>1.3.1</version>
            </dependency>
    
            <!-- 数据库连接池c3p0 -->
            <!-- https://mvnrepository.com/artifact/c3p0/c3p0 -->
            <dependency>
                <groupId>c3p0</groupId>
                <artifactId>c3p0</artifactId>
                <version>0.9.1</version>
            </dependency>
    
            <!-- 数据库连接驱动包 -->
            <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.41</version>
            </dependency>
    
            <!-- 其它包[ jstl , servlet-api , junit ] -->
            <!-- https://mvnrepository.com/artifact/jstl/jstl -->
            <dependency>
                <groupId>jstl</groupId>
                <artifactId>jstl</artifactId>
                <version>1.2</version>
            </dependency>
            <!-- https://mvnrepository.com/artifact/org.mortbay.jetty/servlet-api -->
            <dependency>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>servlet-api</artifactId>
                <version>2.5-6.0.0</version>
                <scope>provided</scope>
            </dependency>
            <!-- https://mvnrepository.com/artifact/junit/junit -->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
                <scope>test</scope>
            </dependency>
            
            <!-- SpringTest Jar包 -->
            <!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-test</artifactId>
                <version>4.3.12.RELEASE</version>
                <scope>test</scope>
            </dependency>
            
            <!--  使用mybatis的逆向工程生成对应的bean及mapper  -->
            <!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core -->
            <dependency>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-core</artifactId>
                <version>1.3.5</version>
            </dependency>
        </dependencies>
    </project>

     3: 引入bootstrap前端框架

    4: 编写SSM整合的关键配置文件

     web.xml spring,springMVC mybatis 使用mybatis的逆向工程生成对应的bean以及mapper

     web.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns="http://java.sun.com/xml/ns/javaee"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
        id="WebApp_ID" version="2.5">
    
        <!-- 1: 启动Spring容器 -->
        <!-- needed for ContextLoaderListener -->
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:applicationContext.xml</param-value>
        </context-param>
    
        <!-- Bootstraps the root web application context before servlet initialization -->
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
    
        <!-- 2: 配置Springmvc的前端控制器,拦截所有请求 -->
    
        <!-- The front controller of this Spring Web application, responsible for 
            handling all application requests -->
        <servlet>
            <servlet-name>dispatcherServlet</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <load-on-startup>1</load-on-startup>
        </servlet>
    
        <!-- Map all requests to the DispatcherServlet for handling -->
        <servlet-mapping>
            <servlet-name>dispatcherServlet</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    
        <!-- 3: 字符编码过滤器 ,一定要放在所有过滤器前面-->
        <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>
            <init-param>
                <param-name>forceRequestEncoding</param-name>
                <param-value>true</param-value>
            </init-param>
            <init-param>
                <param-name>forceResponseEncoding</param-name>
                <param-value>true</param-value>
            </init-param>
        </filter>
        
        <filter-mapping>
            <filter-name>CharacterEncodingFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    
        <!-- 4: 使用Rest风格URL ,将页面普通的post请求转换为指定的delete或者put请求 -->
        <filter>
            <filter-name>HiddenHttpMethodFilter</filter-name>
            <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
        </filter>
        <filter-mapping>
            <filter-name>HiddenHttpMethodFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    </web-app>

    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" 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-4.3.xsd
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
    
        <context:component-scan base-package="cn.yi">
            <!-- 只扫描Controller控制器 -->
            <context:include-filter type="annotation"
                expression="org.springframework.stereotype.Controller" />
        </context:component-scan>
        
        
        <!-- Spring的配置,这里主要配置和设置业务逻辑 -->
        <!-- ==================数据源,事务控制 ……===================== -->
        <context:property-placeholder location="classpath:dbconfig.properties" />
        <bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
            <property name="jdbcUrl" value="${db.url}" />
            <property name="driverClass" value="${db.driver}" />        
            <property name="user" value="${db.user}" />
            <property name="password" value="${db.password}" />
        </bean>
    
        <!-- ===================配置和 Mybatis 的整合==================== -->
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        
            <!-- 指定mybatis 全局配置文件的位置 -->
            <property name="configLocation" value="classpath:mybatis-Config.xml"></property>
            <property name="dataSource" ref="pooledDataSource"></property>
            
            <!-- 指定mybatis mapper 文件的位置 -->
            <property name="mapperLocations" value="classpath:mapper/*.xml"></property>
        </bean>
    
        <!-- 配置扫描器,将mybatis接口的实现加入到IOC容器中 -->
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <!--扫描所有dao接口的实现,加入IOC容器中 -->
            <property name="basePackage" value="cn.yi.crud.dao"></property>
        </bean>
    
        <!-- 配置一个可以执行批量的sqlSession -->
        <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
        <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"></constructor-arg>
        <constructor-arg name="executorType" value="BATCH"></constructor-arg>
        </bean>
    
        <!-- ======================事务控制的配置========================== -->
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <!-- 控制数据源 -->
            <property name="dataSource" ref="pooledDataSource"></property>
        </bean>
        
        <!-- 开启基于注解的事务,也可以使用xml配置形式的事务(一般使用配置式) -->
        <aop:config>
            <!-- 切入点表达式 -->
            <aop:pointcut expression="execution(* cn.yi.crud.service..*(..))" id="txpoint" />
            <!-- 配置事务增强 -->
            <aop:advisor advice-ref="txAdvice" pointcut-ref="txpoint" />
        </aop:config>
    
        <!-- 配置事务增强,事务如何切入 -->
        <tx:advice id="txAdvice" transaction-manager="transactionManager">
            <tx:attributes>
                <!-- 所有方法都是事务方法 -->
                <tx:method name="*" />
                <!-- 已GET开始的所有方法 -->
                <tx:method name="get*" read-only="true" />
            </tx:attributes>
        </tx:advice>
        <!-- spring配置文件的核心点(数据源、与mybatis整合、事务控制) -->
    
    </beans>

    dispatcherServlet-servlet.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-3.0.xsd
            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
            
    
        <!-- Springmvc 的配置文件,包含网站跳转逻辑的控制 -->
        <context:component-scan base-package="cn.yi" use-default-filters="false">        
            <!-- 只扫描Controller控制器 -->
            <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
        </context:component-scan>
        
        <!-- 配置视图解析器,方便页面返回 -->
        <bean
            class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <!-- 配置前缀 -->
            <property name="prefix" value="/WEB-INF/views/"></property>
            <!-- 配置后缀 -->
            <property name="suffix" value=".jsp"></property>
        </bean>
        
        <!-- 两个标准配置 -->
        <!--  将springmvc不能处理的请求要个tomcat处理 -->
        <mvc:default-servlet-handler/>
        <!-- 能支持springmvc 更高级功能,JSR303校验,快捷ajax……-->
        <mvc:annotation-driven/>
        
    </beans>

    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>
        <!-- 驼峰面命规则 -->
            <setting name="mapUnderscoreToCamelCase" value="true" />
        </settings>
        <typeAliases>
            <package name="cn.yi.crud.bean" />
        </typeAliases>
    </configuration>

    mbg.xml 

    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE generatorConfiguration
      PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
      "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
    
    <generatorConfiguration>
        <context id="DB2Tables" targetRuntime="MyBatis3">
        
            <!-- 不生成xml注释 -->
            <commentGenerator>
                <property name="suppressAllComments" value="true" />
            </commentGenerator>
            
            <!--配置数据库连接 -->
            <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                connectionURL="jdbc:mysql://localhost:3306/ssm-crud" userId="root"
                password="">
            </jdbcConnection>
    
            <javaTypeResolver>
                <property name="forceBigDecimals" value="false" />
            </javaTypeResolver>
    
            <!--指定javaBean生成的位置 -->
            <javaModelGenerator targetPackage="cn.yi.crud.bean"
                targetProject=".srcmainjava">
                <property name="enableSubPackages" value="true" />
                <property name="trimStrings" value="true" />
            </javaModelGenerator>
    
            <!--指定SQL映射文件,生成的位置 -->
            <sqlMapGenerator targetPackage="mapper" targetProject="./src/main/resources">
                <property name="enableSubPackages" value="true" />
            </sqlMapGenerator>
    
            <!--指定dao接口生成的位置,mapper接口 -->
            <javaClientGenerator type="XMLMAPPER"
                targetPackage="cn.yi.crud.dao" targetProject="./src/main/java">
                <property name="enableSubPackages" value="true" />
            </javaClientGenerator>
    
            <!--table指定每个表生成策略 -->
            <table tableName="emp" domainObjectName="Employee"></table>
            <table tableName="dept" domainObjectName="Department"></table>
        </context>
    </generatorConfiguration>

     5: 测试mapper

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  • 原文地址:https://www.cnblogs.com/pxuan/p/7776384.html
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