SSM-crud - 爱码网

文章目录

1.介绍
2.框架配置

2.1 创建一个maven web项目
2.2 配置pom,引入相关jar包
2.3 引入前端框架bootstrap
2.4 编写SSM相关配置文件

2.4.1 web.xml配置
2.4.2 配置数据库dbconfig.properties
2.4.3 Mybatis配置
2.4.3 Spring配置(applicationContext.xml)
2.4.4 SpringMVC配置(dispatcherServlet-servlet.xml)

2.5 引入单元测试

2.5.1 创建测试表
2.5.2 mybatis ****
2.5.3 执行****
2.5.1 创建测试表

说明

1.引入springmvc配置一个，就会自动引入相关依赖的包，如下图所示：

1.介绍

本项目是使用spring+springmvc+mabatis框架实现的一个增删改查应用

2.框架配置

2.1 创建一个maven web项目

SSM-crud

2.2 配置pom,引入相关jar包

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
  </properties>

  <dependencies>


    <!--引入pageHelper分页插件 -->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>5.0.0</version>
    </dependency>

    <!-- MBG -->
    <!-- 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>


    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>4.3.7.RELEASE</version>
    </dependency>

    <!-- 返回json字符串的支持 -->
    <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.8.8</version>
    </dependency>

    <!--JSR303数据校验支持；tomcat7及以上的服务器，
    tomcat7以下的服务器：el表达式。额外给服务器的lib包中替换新的标准的el
    -->
    <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-validator</artifactId>
      <version>5.4.1.Final</version>
    </dependency>


    <!-- Spring-Jdbc -->
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>4.3.7.RELEASE</version>
    </dependency>

    <!--Spring-test -->
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>4.3.7.RELEASE</version>
    </dependency>


    <!-- Spring面向切面编程 -->
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <version>4.3.7.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整合Spring的适配包 -->
    <!-- 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、驱动 -->
    <!-- https://mvnrepository.com/artifact/c3p0/c3p0 -->
    <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.1</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.41</version>
    </dependency>
    <!-- （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/javax.servlet/javax.servlet-api -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.0.1</version>
      <scope>provided</scope>
    </dependency>


    <!-- junit -->
    <!-- https://mvnrepository.com/artifact/junit/junit -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
    </dependency>

  </dependencies>

2.3 引入前端框架bootstrap

官网
SSM-crud

下载好后，拷贝到项目中去，如图：

2.4 编写SSM相关配置文件

添加spring等配置的时候，需要idea增加框架支持才能生成相关配置文件，如图：
SSM-crud
若打开界面没有spring相关配置信息，则我们要先删除项目自带的spring，然后再回到这里重新添加，如图：

这样，IDEA会在增加相关配置文件以及web里添加一些spring 信息，如图：

2.4.1 web.xml配置

<?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的容器  -->
  <!-- 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、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之前 -->
  <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风格的URI，将页面普通的post请求转为指定的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>
  <filter>
    <filter-name>HttpPutFormContentFilter</filter-name>
    <filter-class>org.springframework.web.filter.HttpPutFormContentFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>HttpPutFormContentFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  
  
</web-app>

2.4.2 配置数据库dbconfig.properties

jdbc.jdbcUrl=jdbc:mysql://localhost:3306/ssm_crud
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.user=root
jdbc.password=root

2.4.3 Mybatis配置

1.类根目录下创建存放映射的目录以及mybatis配置文件，如图：
SSM-crud

<?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="mapUnderscoreToCamelCase" value="true"/>
	</settings>
	
	<typeAliases>
		<package name="com.zy.crud.bean"/>
	</typeAliases>
	
	<plugins>
		<plugin interceptor="com.github.pagehelper.PageInterceptor">
			<!--分页参数合理化  -->
			<property name="reasonable" value="true"/>
		</plugin>
	</plugins>

</configuration>

2.4.3 Spring配置(applicationContext.xml)

由于我们在eclipse里需要用到一些spring的命名空间的时候，可以通过界面勾选添加，这里IDEA不用那么麻烦，在编辑区，直接输入想要配置的标签，然后输入冒号(：)，自动提示了可能需要配置的标签以及对应的命名空间。选择我们对应的标签，命名空间自动就导入了

<?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">


    <context:component-scan base-package="com.zy">
        <context:exclude-filter type="annotation"
                                expression="org.springframework.stereotype.Controller" />
    </context:component-scan>

    <!-- Spring的配置文件，这里主要配置和业务逻辑有关的 -->
    <!--=================== 数据源，事务控制，xxx ================-->
    <context:property-placeholder location="classpath:dbconfig.properties" />
    <bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
        <property name="driverClass" value="${jdbc.driverClass}"></property>
        <property name="user" value="${jdbc.user}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </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，加入到ioc容器中 -->
        <property name="basePackage" value="com.zy.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">
        <!--控制住数据源  -->
        <property name="dataSource" ref="pooledDataSource"></property>
    </bean>
    <!--开启基于注解的事务，使用xml配置形式的事务（必要主要的都是使用配置式）  -->
    <aop:config>
        <!-- 切入点表达式 -->
        <aop:pointcut expression="execution(* com.zy.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="*"/>
            <!--以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的整合，事务控制） -->

</beans>

2.4.4 SpringMVC配置(dispatcherServlet-servlet.xml)

servlet-name ：随便取。Spring默认配置文件为"/WEB-INF/[servlet-name]-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.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">


    <!--SpringMVC的配置文件，包含网站跳转逻辑的控制，配置  -->
    <context:component-scan base-package="com.zy" use-default-filters="false">
        <!--只扫描控制器。  -->
        <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">
        <property name="prefix" value="/WEB-INF/views/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

    <!--两个标准配置  -->
    <!-- 将springmvc不能处理的请求交给tomcat -->
    <mvc:default-servlet-handler></mvc:default-servlet-handler>
    <!--&lt;!&ndash; 能支持springmvc更高级的一些功能，JSR303校验，快捷的ajax...映射动态请求 &ndash;&gt;-->
    <mvc:annotation-driven></mvc:annotation-driven>

</beans>

2.5 引入单元测试

2.5.1 创建测试表

emp 人员表

DROP TABLE IF EXISTS `tbl_emp`;
CREATE TABLE `tbl_emp` (
  `emp_id` int(11) NOT NULL AUTO_INCREMENT,
  `emp_name` varchar(255) DEFAULT NULL,
  `gender` char(1) DEFAULT NULL,
  `email` varchar(255) DEFAULT NULL,
  `d_id` int(11) DEFAULT NULL,
  PRIMARY KEY (`emp_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
SET FOREIGN_KEY_CHECKS=1;

dept 部门表

DROP TABLE IF EXISTS `tbl_dept`;
CREATE TABLE `tbl_dept` (
  `dept_id` int(11) NOT NULL AUTO_INCREMENT,
  `dept_name` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`dept_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
SET FOREIGN_KEY_CHECKS=1;

2.5.2 mybatis ****

官网
1.添加依赖

    <dependency>
      <groupId>org.mybatis.generator</groupId>
      <artifactId>mybatis-generator-core</artifactId>
      <version>1.3.5</version>
    </dependency>

2.项目添加****配置文件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">
		<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="root">
		</jdbcConnection>

		<javaTypeResolver>
			<property name="forceBigDecimals" value="false" />
		</javaTypeResolver>

		<!-- 指定javaBean生成的位置 -->
		<javaModelGenerator targetPackage="com.zy.crud.bean"
			targetProject=".\src\main\java">
			<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="com.zy.crud.dao" targetProject=".\src\main\java">
			<property name="enableSubPackages" value="true" />
		</javaClientGenerator>


		<!-- table指定每个表的生成策略 -->
		<table tableName="tbl_emp" domainObjectName="Employee"></table>
		<table tableName="tbl_dept" domainObjectName="Department"></table>
	</context>
</generatorConfiguration>

2.5.3 执行****

1.创建测试类
后续更新…

2.5.1 创建测试表

说明

1.引入springmvc配置一个，就会自动引入相关依赖的包，如下图所示：

SSM-crud