20201216 王维
学习总结
1 mybatis配置
dao接口映射文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- namespace 映射的接口 -->
<mapper namespace="com.itlaobing.ssm.dao.IUserDao">
<!-- resultType 查询结果的映射类型 -->
<select id="findAll" resultType="com.itlaobing.ssm.model.UserInfo">
select * from users
</select>
<select id="findAllLimit" resultType="com.itlaobing.ssm.model.UserInfo" parameterType="com.itlaobing.ssm.util.PageUtil">
select * from users
<where>
<if test="search != null and search != ''">
username like '%${search}%'
or phone like '%${search}%'
or email like '%${search}%'
</if>
</where>
<if test="sort != null and sort != ''">
order by ${sort}
</if>
<if test="order != null and sort != ''">
${order}
</if>
</select>
</mapper>
mybatis全局配置
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!-- 读数据库连接文件 -->
<properties resource="db.properties" />
<!-- 别名 -->
<typeAliases>
<package name="com.itlaobing.ssm.model"/>
</typeAliases>
<!-- 数据源环境 -->
<environments default="mysql">
<environment id="mysql">
<!-- 使用JDBC事务 -->
<transactionManager type="JDBC"></transactionManager>
<!-- 连接池类型 -->
<dataSource type="pooled">
<!-- 连接属性 -->
<property name="driver" value="${driver}"/>
<property name="url" value="${url}"/>
<property name="username" value="${user}"/>
<property name="password" value="${pass}"/>
</dataSource>
</environment>
</environments>
<!-- 扫描代理的接口 -->
<mappers>
<package name="com.itlaobing.ssm.dao"/>
</mappers>
</configuration>
test测试
package com.itlaobing.ssm.dao;
import com.itlaobing.ssm.model.UserInfo;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.Test;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
public class IUserDaoTest {
@Test
public void findAll() throws IOException {
//读取mybatis的配置信息
InputStream in = Resources.getResourceAsStream("sqlMapConfig.xml");
//创建代理工厂
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(in);
//创建连接
SqlSession sqlSession = sqlSessionFactory.openSession();
//创建代理对象
IUserDao userInfo = sqlSession.getMapper(IUserDao.class);
//执行方法
List<UserInfo> list = userInfo.findAll();
//遍历结果集
for (UserInfo user : list) {
System.out.println(user);
}
}
}
2 spring配置
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="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/aop
http://www.springframework.org/schema/aop/spring-aop.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">
<!-- 扫包 将注解过的类使用spring容器管理 -->
<context:component-scan base-package="com.itlaobing.ssm"/>
<!-- 读数据库的连接信息 -->
<context:property-placeholder location="classpath:db.properties"/>
<!--创建数据源 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${driver}"/>
<property name="url" value="${url}"/>
<property name="username" value="${user}"/>
<property name="password" value="${pass}"/>
</bean>
<!-- 配置mybatis的session工厂 将他托管给spring容器 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 数据源 -->
<property name="dataSource" ref="dataSource"/>
<!-- 别名 -->
<property name="typeAliasesPackage" value="com.itlaobing.ssm.model"/>
<!-- 分页插件 -->
<property name="plugins">
<array>
<bean class="com.github.pagehelper.PageInterceptor">
<!-- 这里的几个配置主要演示如何使用，如果不理解，一定要去掉下面的配置 -->
<property name="properties">
<value>
<!--PageHelper默认情况下会检测到当前的数据库URL，自动选择相应的数据库方言。
您可以配置helperDialect属性以指定方言。您可以使用下面的缩写：
oracle，mysql，mariadb，sqlite，hsqldb，postgresql， db2，sqlserver，informix，h2，sqlserver2012，derby。 -->
helperDialect=mysql
<!-- 分页参数合理化，默认值为false。当此参数设置为时true，
pageNum <= 0将查询第一页 PageNum> pages（超过总数）
，将查询最后一页。Default false，直接基于参数查询-->
reasonable=true
</value>
</property>
</bean>
</array>
</property>
</bean>
<!-- 配置 Mapper 扫描器-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer" >
<property name="basePackage" value="com.itlaobing.ssm.dao"/>
</bean>
</beans>
test测试
package com.itlaobing.ssm.service;
import com.itlaobing.ssm.model.UserInfo;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import java.util.List;
import static org.junit.Assert.*;
//注解的方式
//spring的测试环境
//@RunWith(SpringJUnit4ClassRunner.class)
//spring的配置文件
//@ContextConfiguration("classpath:spring.xml")
public class IUserServiceTest {
@Autowired
private IUserService service;
@Test
public void findAll() {
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring.xml");
service = applicationContext.getBean(IUserService.class);
List<UserInfo> list = service.findAll();
System.out.println("-------------------------------------------------");
for (UserInfo user : list) {
System.out.println(user);
}
}
}
3 springmvc配置
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="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/aop
http://www.springframework.org/schema/aop/spring-aop.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">
<!-- 扫包 将注解过的类使用spring容器管理 -->
<context:component-scan base-package="com.itlaobing.ssm"/>
<!-- 读数据库的连接信息 -->
<context:property-placeholder location="classpath:db.properties"/>
<!--创建数据源 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${driver}"/>
<property name="url" value="${url}"/>
<property name="username" value="${user}"/>
<property name="password" value="${pass}"/>
</bean>
<!-- 配置mybatis的session工厂 将他托管给spring容器 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 数据源 -->
<property name="dataSource" ref="dataSource"/>
<!-- 别名 -->
<property name="typeAliasesPackage" value="com.itlaobing.ssm.model"/>
<!-- 分页插件 -->
<property name="plugins">
<array>
<bean class="com.github.pagehelper.PageInterceptor">
<!-- 这里的几个配置主要演示如何使用，如果不理解，一定要去掉下面的配置 -->
<property name="properties">
<value>
<!--PageHelper默认情况下会检测到当前的数据库URL，自动选择相应的数据库方言。
您可以配置helperDialect属性以指定方言。您可以使用下面的缩写：
oracle，mysql，mariadb，sqlite，hsqldb，postgresql， db2，sqlserver，informix，h2，sqlserver2012，derby。 -->
helperDialect=mysql
<!-- 分页参数合理化，默认值为false。当此参数设置为时true，
pageNum <= 0将查询第一页 PageNum> pages（超过总数）
，将查询最后一页。Default false，直接基于参数查询-->
reasonable=true
</value>
</property>
</bean>
</array>
</property>
</bean>
<!-- 配置 Mapper 扫描器-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer" >
<property name="basePackage" value="com.itlaobing.ssm.dao"/>
</bean>
<!-- springmvc配置 -->
<!-- 配置映射器和适配器 -->
<mvc:annotation-driven />
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
<!-- 前缀 -->
<property name="prefix" value="/WEB-INF/pages/"/>
<!-- 后缀 -->
<property name="suffix" value=".jsp"/>
</bean>
</beans>
web.xml配置
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>encoding</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>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
</web-app>
心得体会
完善了权限管理的页面内容，对各种细节进行了一定的处理，再次练习了ssm框架的整合，对很多遗忘的配置进行了复习。
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