SSM整合：
1.环境准备
1.数据库环境：创建数据库和表；
create database ssm;
use ssm;
create table account(
id int primary key auto_increment,
name varchar(40),
money double
)character set utf8 collate utf8_general_ci;
insert into account(name,money) values('zs',1000);
insert into account(name,money) values('ls',1000);
insert into account(name,money) values('ww',1000);
2.创建工程（war包），导入坐标；
<?xml version="1.0" encoding="UTF-8"?>
<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>com.it</groupId>
<artifactId>ssm</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<spring.version>5.0.2.RELEASE</spring.version>
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
<mysql.version>5.1.6</mysql.version>
<mybatis.version>3.4.5</mybatis.version>
</properties>
<dependencies>
<!-- spring -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.8</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- log end -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.14</version>
</dependency>
<!--使用@RequestBody接收Json数据转化为pojo需要加上此jar包,注意spring5.0以上需要2.9.x版本-->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.8</version>
</dependency>
</dependencies>
</project>
3.创建pojo
package com.it.pojo;
import java.io.Serializable;
/**
* ToDo
*
* @author Lyle
* @date 2020/4/23
*/
public class Account implements Serializable {
private Integer id;
private String name;
private double money;
public Account() {
}
public Account(Integer id, String name, double money) {
this.id = id;
this.name = name;
this.money = money;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getMoney() {
return money;
}
public void setMoney(double money) {
this.money = money;
}
@Override
public String toString() {
return "Account{" +
"id=" + id +
", name='" + name + '\'' +
", money=" + money +
'}';
}
}
4.拷贝log4j文件：log4j.properties
##\u8bbe\u7f6e\u65e5\u5fd7\u8bb0\u5f55\u5230\u63a7\u5236\u53f0\u7684\u65b9\u5f0f
log4j.appender.std=org.apache.log4j.ConsoleAppender
log4j.appender.std.Target=System.err
log4j.appender.std.layout=org.apache.log4j.PatternLayout
log4j.appender.std.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %5p %c{1}:%L - %m%n
##\u8bbe\u7f6e\u65e5\u5fd7\u8bb0\u5f55\u5230\u6587\u4ef6\u7684\u65b9\u5f0f
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=mylog.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
##\u65e5\u5fd7\u8f93\u51fa\u7684\u7ea7\u522b\uff0c\u4ee5\u53ca\u914d\u7f6e\u8bb0\u5f55\u65b9\u6848
log4j.rootLogger=debug, std, file
2.Spring整合SpringMVC和Mybatis
SpringMVC部分：
1.创建Controller类，定义方法，添加注解；
@Controller
@RequestMapping("/account")
public class AccountController {
@Autowired
private AccountService accountService;
@RequestMapping("/findAll")
public String findAll(){
System.out.println("controller类执行了。。。");
List<Account> list = accountService.findAll();
for (Account account : list) {
System.out.println(account);
}
return "success";
}
}
2.创建springmvc配置文件：springmvc.xml，通过import导入其余配置文件
开启包扫描；
配置视图解析器；
配置注解驱动；
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
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
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">
<!--一：spring整合mvc，使用@Controller或者@RestController-->
<!--组件扫描-->
<context:component-scan base-package="com.it"></context:component-scan>
<!--配置视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!--配置注解驱动支持-->
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 设置静态资源不过滤 -->
<mvc:resources location="/css/" mapping="/css/**"/> <!-- 样式 -->
<mvc:resources location="/images/" mapping="/images/**"/> <!-- 图片 -->
<mvc:resources location="/js/" mapping="/js/**"/> <!-- javascript -->
<!-- 导入其余配置文件 -->
<import resource="classpath:applicationContext.xml"></import>
</beans>
3.在web.xml中配置前端控制器（加载配置文件springmvc.xml）和编码过滤器
<?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_3_0.xsd"
id="WebApp_ID" version="3.0">
<!-- 解决post乱码 -->
<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>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 指定加载的配置文件 ，通过参数contextConfigLocation加载 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
Mybatis部分：
1.Dao接口：注意使用注解，要配置接口包扫描
@Repository
public interface AccountDao {
@Insert("insert into account(name,money) values(#{name},#{money})")
void save(Account account);
@Select("select * from account")
List<Account> findAll();
}
2.配置文件：applicationContext.xml（配置DataSource和SqlSessionFactoryBean）
<?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">
<!--数据源-->
<bean id="dataSource"
class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close">
<property name="username" value="root"/>
<property name="password" value="root"/>
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/ssm"/>
</bean>
<!--spring和mybatis整合的工厂bean-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!--<property name="configLocation" value="classpath:sqlMapConfig.xml" />-->
<!--配置别名-->
<property name="typeAliasesPackage" value="com.it.vo"></property>
<property name="mapperLocations" value="classpath*:com/it/dao/*.xml"></property>
</bean>
<!--批量扫描接口生成代理对象，让Dao的接口被spring管理-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!--指定接口所在的包-->
<property name="basePackage" value="com.it.dao"/>
</bean>
</beans>
测试：三层架构（Controller、Service、Dao）
Controller层：
@Controller
@RequestMapping("/account")
public class AccountController {
@Autowired
private AccountService accountService;
@RequestMapping("/findAll")
public String findAll(){
System.out.println("controller类执行了。。。");
List<Account> list = accountService.findAll();
for (Account account : list) {
System.out.println(account);
}
return "success";
}
}
Service层：
接口：
public interface AccountService {
void save(Account account);
List<Account> findAll();
}
实现类：
@Service
public class AccountServiceImpl implements AccountService {
@Autowired
private AccountDao accountDao;
@Override
public void save(Account account) {
}
@Override
public List<Account> findAll() {
System.out.println("AccountServiceImpl findAll()");
List<Account> list = accountDao.findAll();
return list;
}
}
Dao层：
@Repository
public interface AccountDao {
@Insert("insert into account(name,money) values(#{name},#{money})")
void save(Account account);
@Select("select * from account")
List<Account> findAll();
}
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