SSM增删改查3(速成MySQL语句)
SSM增删改查3(速成MySQL语句)
1.引入依赖
<!--=========================引入spring mvc和spring的jar包====================================-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.1.9.RELEASE</version>
</dependency>
<!--spring-jdbc的包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.1.9.RELEASE</version>
</dependency>
<!--spring面向切面编程-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>5.1.9.RELEASE</version>
</dependency>
<!-- spring的测试模块 ===========-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.1.9.RELEASE</version>
<scope>test</scope>
</dependency>
<!--=====================MyBatis=========================================================-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.2</version>
</dependency>
<!--mybatis整合spring-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.2</version>
</dependency>
<!--============数据库、驱动=========================================-->
<!--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>
<!--================jst1,servlet-api,junit=========================-->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<!--mybatis代码生成器
用法详见： http://mybatis.org/generator/quickstart.html
==============-->
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.7</version>
</dependency>
<!--mybatis的分页插件
用法详见： https://pagehelper.github.io/docs/howtouse/
==============-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.2.0</version>
</dependency>
<!-- 测试的时候用的 -->
<dependency>
<groupId>org.jetbrains</groupId>
<artifactId>annotations-java5</artifactId>
<version>20.1.0</version>
<scope>compile</scope>
</dependency>
<!-- 返回结果转成json对象需要用到的依赖 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.11.3</version>
</dependency>
<!-- jsp页面的使用-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<!-- 后端对前端的数据进行校验 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>6.1.0.Final</version>
</dependency>
2.速度生成增删改查的代码
2.1 mbg.xml
<!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="simple" targetRuntime="MyBatis3Simple">
<commentGenerator>
<!-- 取消注释 -->
<property name="suppressAllComments" value="true" />
</commentGenerator>
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/eeay"
userId="root"
password="wts319324"/>
<!-- 指定JavaBean生成的地方 -->
<javaModelGenerator targetPackage="com.wts.bean" targetProject="./src/main/java"/>
<!-- 指定SQL映射文件生成的地方 -->
<sqlMapGenerator targetPackage="mapper" targetProject="./src/main/resources"/>
<!-- 指定dao接口生成的位置 -->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.wts.dao" targetProject="./src/main/java"/>
<table tableName="tbl_emp" domainObjectName="Employee" />
<table tableName="tbl_dept" domainObjectName="Department" />
</context>
</generatorConfiguration>
2.2 MBGTest
import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.xml.ConfigurationParser;
import org.mybatis.generator.exception.InvalidConfigurationException;
import org.mybatis.generator.exception.XMLParserException;
import org.mybatis.generator.internal.DefaultShellCallback;
import java.io.File;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
/**
* 生成代理代码的测试
*/
public class MBGTset {
public static void main(String[] args) throws IOException, XMLParserException, InvalidConfigurationException, SQLException, InterruptedException {
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
File configFile = new File("mbg.xml");
ConfigurationParser cp = new ConfigurationParser(warnings);
Configuration config = cp.parseConfiguration(configFile);
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
myBatisGenerator.generate(null);
}
}
3.配置文件的内容
3.1 database.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/eeay
jdbc.username=root
jdbc.password=wts319324
3.2 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-mvc.xml"></import>
<import resource="classpath:spring.xml"></import>
</beans>
3.3 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>
<!--驼峰命名法-->
<setting name="mapUnderscoreToCamelCase" value="true"/>
<!--日志，STDOUT_LOGGING在控制台输出日志-->
<!-- <setting name="logImpl" value="STDOUT_LOGGING"/>-->
<!-- 二级缓存 -->
<setting name="cacheEnabled" value="true"/>
</settings>
<plugins>
<!--引用分页插件-->
<plugin interceptor="com.github.pagehelper.PageInterceptor">
<!--使分页的参数合理化。避免出现负的页数，或者比最后一页还大的页数-->
<property name="reasonable" value="true"/>
</plugin>
</plugins>
<!-- <typeAliases>-->
<!-- <package name="com.wts.bean"/>-->
<!-- </typeAliases>-->
<!-- <mappers>-->
<!-- <package name="com.wts.dao"/>-->
<!-- </mappers>-->
</configuration>
3.4 spring.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/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd ">
<context:component-scan base-package="com.wts">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 配置数据源 -->
<context:property-placeholder location="classpath:database.properties"/>
<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}"/>
</bean>
<!--**************************************************************************************************************-->
<!-- 配置mybatis和spring的整合 -->
<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"/>
<!-- 指定 mybatis的mapper文件位置。 -->
<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">
<!-- 注入sqlSessionFactory -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<!-- 扫描Dao接口，加入到ioc容器中 -->
<property name="basePackage" value="com.wts.dao"/>
</bean>
<!-- 配置一个可以批量生成sqlSession，用于创建多个员工 -->
<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">
<!-- 注入数据库连接池 -->
<property name="dataSource" ref="dataSource" />
</bean>
<!--使用配置的方式,开启事务-->
<aop:config>
<!-- 配置事务的切入点 -->
<aop:pointcut id="txPoint" expression="execution(* com.wts.service..*(..))"/>
<!-- 配置事务的增强 -->
<aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"></aop:advisor>
</aop:config>
<!-- 配置事务增强，事务如何切入 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!--所有的方法都是事务方法 -->
<tx:method name="*"/>
<!--以get为开头的方法。增加一下查询方法-->
<tx:method name="get*" read-only="true"/>
</tx:attributes>
</tx:advice>
</beans>
3.5 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 ">
<!-- 扫描web相关的ben-->
<context:component-scan base-package="com.wts" use-default-filters="false">
<!-- 只扫描控制器-->
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 开启SpringMvc高级功能-->
<mvc:annotation-driven />
<!-- 将springmvc不能处理的请求叫给tomcat-->
<mvc:default-servlet-handler/>
<!-- 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>
</beans>
3.5 web.xml
<!-- spring前端控制器，拦截所有请求-->
<servlet>
<servlet-name>DispatcherServlet</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>DispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--解决视图乱码-->
<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>
<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>encodingFilter</filter-name>
<url-pattern>/*
hiddenHttpMethodFilter
org.springframework.web.filter.HiddenHttpMethodFilter
hiddenHttpMethodFilter
/*
httpPutFormContentFilter
org.springframework.web.filter.HttpPutFormContentFilter
httpPutFormContentFilter
/*