SSM+Druid的搭建

SSM+druid开发配置

工程目录

 

1、先从pom文件开始吧

<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>4.0.0modelVersion> <groupId>com.yangpeigroupId> <artifactId>RedLemonartifactId> <version>0.0.1-SNAPSHOTversion> <packaging>warpackaging>   <name>RedLemonname> <url>https://home.cnblogs.com/u/InterfaceAOP/url> <inceptionYear>2019-2020inceptionYear>   <properties> <spring-version>4.1.9.RELEASEspring-version> <mybatis.version>3.2.8mybatis.version> <mybatis-spring.version>1.2.3mybatis-spring.version> <druid.version>1.1.10druid.version> <tomcat.version>2.2tomcat.version> <webserver.port>8181webserver.port> <project.build.sourceEncoding>UTF-8project.build.sourceEncoding> properties>   <dependencies> <dependency> <groupId>com.alibabagroupId> <artifactId>druidartifactId> <version>${druid.version}version> dependency>   <dependency> <groupId>mysqlgroupId> <artifactId>mysql-connector-javaartifactId> <version>5.1.42version> dependency>   <dependency> <groupId>org.mybatisgroupId> <artifactId>mybatisartifactId> <version>3.4.4version> dependency>   <dependency> <groupId>org.mybatisgroupId> <artifactId>mybatis-springartifactId> <version>1.3.1version> dependency>   <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-contextartifactId> <version>${spring-version}version> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-webmvcartifactId> <version>${spring-version}version> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-beansartifactId> <version>${spring-version}version> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-ormartifactId> <version>${spring-version}version> dependency>   <dependency> <groupId>org.slf4jgroupId> <artifactId>slf4j-apiartifactId> <version>1.6.6version> dependency> <dependency> <groupId>org.slf4jgroupId> <artifactId>slf4j-log4j12artifactId> <version>1.6.6version> dependency> <dependency> <groupId>log4jgroupId> <artifactId>log4jartifactId> <version>1.2.16version> dependency>   dependencies>   <developers> developers> <build> <plugins> <plugin> <groupId>org.apache.maven.pluginsgroupId> <artifactId>maven-compiler-pluginartifactId> <version>3.1version> <configuration> <source>1.8source> <target>1.8target> configuration> plugin> <plugin> <groupId>org.apache.tomcat.mavengroupId> <artifactId>tomcat7-maven-pluginartifactId> <version>${tomcat.version}version> <configuration> <port>${webserver.port}port> <path>/path> <uriEncoding>${project.build.sourceEncoding}uriEncoding> configuration> plugin> plugins> build> project>

 

lonelyPerson.properties配置文件

jdbc.type=mysql jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/lonelyperson?useUnicode=true&characterEncoding=utf-8 jdbc.username=root jdbc.password=root   #druid datasource druid.initialSize=10 druid.minIdle=10 druid.maxActive=50 druid.maxWait=60000 druid.timeBetweenEvictionRunsMillis=30000 druid.minEvictableIdleTimeMillis=150000 druid.validationQuery=SELECT 'x' druid.validationQueryTimeout=3600 druid.testWhileIdle=true druid.testOnBorrow=false druid.testOnReturn=false druid.removeAbandoned=true druid.removeAbandonedTimeout=1800000 druid.logAbandoned=true druid.poolPreparedStatements=true druid.maxPoolPreparedStatementPerConnectionSize=20 druid.filters=wall,stat

mybatis-config.xml文件

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"> <settings> <setting name="cacheEnabled" value="true"/>   <setting name="lazyLoadingEnabled" value="true"/>   <setting name="aggressiveLazyLoading" value="true"/>   <setting name="multipleResultSetsEnabled" value="true"/>   <setting name="useColumnLabel" value="true"/>   <setting name="useGeneratedKeys" value="false"/>      <setting name="autoMappingBehavior" value="PARTIAL"/>   <setting name="defaultExecutorType" value="SIMPLE"/>   <setting name="mapUnderscoreToCamelCase" value="true"/>           <setting name="localCacheScope" value="SESSION"/>                    <setting name="jdbcTypeForNull" value="NULL"/>   settings>

spring-context.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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.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-4.0.xsd         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">     <context:property-placeholder ignore-unresolvable="true" location="classpath:lonelyPerson.properties" />   <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <property name="maxActive" value="${druid.maxActive}" /> <property name="initialSize" value="${druid.initialSize}" /> <property name="maxWait" value="${druid.maxWait}" /> <property name="timeBetweenEvictionRunsMillis" value="${druid.timeBetweenEvictionRunsMillis}" /> <property name="validationQuery" value="${druid.validationQuery}" /> <property name="validationQueryTimeout" value="${druid.validationQueryTimeout}" /> <property name="testWhileIdle" value="${druid.testWhileIdle}" /> <property name="testOnBorrow" value="${druid.testOnBorrow}" /> <property name="testOnReturn" value="${druid.testOnReturn}" /> <property name="removeAbandoned" value="${druid.removeAbandoned}" /> <property name="removeAbandonedTimeout" value="${druid.removeAbandonedTimeout}" /> <property name="logAbandoned" value="${druid.logAbandoned}" />   <property name="poolPreparedStatements" value="${druid.poolPreparedStatements}" /> <property name="maxPoolPreparedStatementPerConnectionSize" value="${druid.maxPoolPreparedStatementPerConnectionSize}" /> <property name="filters" value="${druid.filters}" /> bean>   <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>   <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> bean>     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.yangpei.**.mapper">property> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory">property> bean>  beans>

spring-servlet.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: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">            <mvc:annotation-driven/>          <context:component-scan base-package="com.yangpei.controller" />     <context:component-scan base-package="com.yangpei.service" />     <mvc:resources location="/js/" mapping="/js/**"/>     <mvc:resources location="/css/" mapping="/css/**"/>     <mvc:resources location="/bootstrap3.3.5/" mapping="/bootstrap3.3.5/**"/>     <mvc:resources location="/assets/" mapping="/assets/**"/>     <mvc:resources location="/ztree/" mapping="/ztree/**"/>                                  <bean class="org.springframework.web.servlet.view.BeanNameViewResolver" />     <bean id="jsonView" class="org.springframework.web.servlet.view.json.MappingJackson2JsonView" />     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">         <property name="prefix" value="/WEB-INF/view/" />         <property name="suffix" value=".html" />     bean>   beans>

Web.xml文件

xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0">   <listener>     <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>   listener>   <context-param>     <param-name>contextConfigLocationparam-name>     <param-value>classpath:spring-context.xmlparam-value>   context-param>   <servlet>     <servlet-name>springServletservlet-name>     <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>     <init-param>       <param-name>contextConfigLocationparam-name>       <param-value>classpath:spring-servlet.xmlparam-value>     init-param>     <load-on-startup>1load-on-startup>   servlet>   <servlet-mapping>     <servlet-name>springServletservlet-name>     <url-pattern>*.dourl-pattern>   servlet-mapping>   <filter>     <filter-name>encodingFilterfilter-name>     <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>     <init-param>       <param-name>encodingparam-name>       <param-value>UTF-8param-value>     init-param>     <init-param>       <param-name>forceEncodingparam-name>       <param-value>trueparam-value>     init-param>   filter>   <filter-mapping>     <filter-name>encodingFilterfilter-name>     <url-pattern>/*url-pattern>   filter-mapping> web-app>

然后写dao层--就是数据库的实体类。

public class User {     private Long id;       private String name;       private String password;       private String sex;   private Integer age; ....省略get和set方法 }

测试，是否已经连接上数据库

package com.yangpei.test;   import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext;   import com.yangpei.dao.User; import com.yangpei.mapper.UserMapper;   public class DaoTest { private static ApplicationContext context=new ClassPathXmlApplicationContext("spring-context.xml"); public static void main(String[] args) { UserMapper userMapper = (UserMapper) context.getBean(UserMapper.class); System.out.println(userMapper); User user = userMapper.selectByPrimaryKey(1L); System.out.println(user.getPassword()); } } 我这里打印了数据库的密码，