文章目录
SSM整合
一、准备数据库表格
二、创建maven web项目并补充项目结构,准备好MVC模式下的主要目录
三、更新web.xml 文件和准备包结构
四、导入依赖
五、log4j2.xml
六、jdbc.properties
七、springMVC.xml配置文件
八、applicationContext.xml
九、web.xml
十、开发业务代码
SSM整合
登录案例开发
一、准备数据库表格
二、创建maven web项目并补充项目结构,准备好MVC模式下的主要目录
三、更新web.xml 文件和准备包结构
<?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">
</web-app>
四、导入依赖
<dependencies>
<!--spring核心容器包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.3.5</version>
</dependency>
<!--spring切面包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>5.3.5</version>
</dependency>
<!--aop联盟包-->
<dependency>
<groupId>aopalliance</groupId>
<artifactId>aopalliance</artifactId>
<version>1.0</version>
</dependency>
<!--德鲁伊连接池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.10</version>
</dependency>
<!--mysql驱动-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.22</version>
</dependency>
<!--springJDBC包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.3.5</version>
</dependency>
<!--spring事务控制包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>5.3.5</version>
</dependency>
<!--spring orm 映射依赖-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>5.3.5</version>
</dependency>
<!--Apache Commons日志包-->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<!--log4j2 日志-->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.14.0</version>
<scope>test</scope>
</dependency>
<!--lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
<scope>provided</scope>
</dependency>
<!--spring test测试支持包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.3.5</version>
<scope>test</scope>
</dependency>
<!--junit5单元测试-->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.7.0</version>
<scope>test</scope>
</dependency>
<!--springMVC支持包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>5.3.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.3.5</version>
</dependency>
<!--jsp 和Servlet 可选-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.3</version>
<scope>provided</scope>
</dependency>
<!--json依赖-->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.12.1</version>
</dependency>
<!--mybatis 核心jar包-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.3</version>
</dependency>
<!--spring mybatis整合包-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.3</version>
</dependency>
</dependencies>
接下来准备配置文件(重要)
五、log4j2.xml
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="DEBUG">
<Appenders>
<Console name="Console" target="SYSTEM_ERR">
<PatternLayout pattern="%d{YYYY-MM-dd HH:mm:ss} [%t] %-5p %c{1}:%L - %msg%n" />
</Console>
</Appenders>
<Loggers>
<Root level="DEBUG">
<AppenderRef ref="Console" />
</Root>
</Loggers>
</Configuration>
六、jdbc.properties
jdbc_driver=com.mysql.cj.jdbc.Driver
jdbc_url=jdbc:mysql://127.0.0.1:3306/mydb?useSSL=false&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
jdbc_username=root
jdbc_password=root
七、springMVC.xml配置文件
<?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:p="http://www.springframework.org/schema/p"
xmlns:c="http://www.springframework.org/schema/c"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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/util
http://www.springframework.org/schema/util/spring-util.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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
">
<!--扫描controller-->
<context:component-scan base-package="com.lanson.controller"></context:component-scan>
<!--这里配置三大组件-->
<mvc:annotation-driven />
<!--视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
</bean>
<!--配置静态资源放行-->
<!--<mvc:resources mapping="/js/**" location="/js/"></mvc:resources>-->
<!--<mvc:resources mapping="/css/**" location="/css/"></mvc:resources>-->
<!--<mvc:resources mapping="/img/**" location="/img/"></mvc:resources>-->
<!--<mvc:resources mapping="/static/**" location="/static/"></mvc:resources>-->
</beans>
八、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"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:c="http://www.springframework.org/schema/c"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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/util
http://www.springframework.org/schema/util/spring-util.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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
">
<!--加载外部属性文件-->
<context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
<!--扫描service层-->
<context:component-scan base-package="com.lanson.service"></context:component-scan>
<!--配置德鲁伊数据源-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="username" value="${jdbc_username}"></property>
<property name="password" value="${jdbc_password}"></property>
<property name="url" value="${jdbc_url}"></property>
<property name="driverClassName" value="${jdbc_driver}"></property>
</bean>
<!--配置sqlSessionFactory-->
<bean id="factory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="typeAliasesPackage" value="com.lanson.pojo"></property>
</bean>
<!--配置MapperScanner 扫描mapper.xml 和接口-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!--配置SQLSessionFactory-->
<property name="sqlSessionFactoryBeanName" value="factory"></property>
<!--扫描mapper-->
<property name="basePackage" value="com.lanson.mapper"></property>
</bean>
<!--配置事务管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--开启事务注解-->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
九、web.xml
<?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">
<!--spring核心配置文件位置-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applictionContext.xml</param-value>
</context-param>
<!--spring Listener-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--编码过滤器-->
<filter>
<filter-name>encFilter</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>
</filter>
<filter-mapping>
<filter-name>encFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--DispatcherServlet-->
<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:springmvc.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>
</web-app>
十、开发业务代码
index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<form action="login.do" method="post">
<input type="text" name="uname">
<input type="password" name="password">
<input type="submit" value="登录">
</form>
</body>
</html>
success.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
登录成功
</body>
</html>
fail.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
登录失败
</body>
</html>
User实体类
package com.lanson.pojo;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.io.Serializable;
/**
* @Author: Lansonli
* @Description: MircoMessage:Mark_7001
*/
@AllArgsConstructor
@NoArgsConstructor
@Data
public class User implements Serializable {
private Integer uid;
private String uname;
private String password;
}
UserController
package com.lanson.controller;
import com.lanson.pojo.User;
import com.lanson.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import java.util.List;
/**
* @Author: Lansonli
* @Description: MircoMessage:Mark_7001
*/
@Controller
public class UserController {
@Autowired
private UserService userService;
@RequestMapping("login.do")
public String login(String uname,String password){
String view =null;
User user = userService.findUser(uname, password);
if(null != user){
view ="/success.jsp";
}else{
view="/fail.jsp";
}
return view;
}
@ResponseBody
@RequestMapping("findAllUser.do")
public List<User> findAllUser(){
return userService.findAllUser();
}
}
UserService
package com.lanson.service.impl;
import com.lanson.mapper.UserMapper;
import com.lanson.pojo.User;
import com.lanson.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
/**
* @Author: Lansonli
* @Description: MircoMessage:Mark_7001
*/
@Service
@Transactional
public class UserServiceImpl implements UserService {
@Autowired
private UserMapper userMapper;
@Override
public User findUser(String uname, String password) {
return userMapper.findUser(uname,password);
}
@Override
public List<User> findAllUser() {
return userMapper.findAllUser();
}
}
UserMapper
package com.lanson.mapper;
import com.lanson.pojo.User;
import java.util.List;
/**
* @Author: Lansonli
* @Description: MircoMessage:Mark_7001
*/
public interface UserMapper {
User findUser(String uname, String password);
List<User> findAllUser();
}
UserMapper.xml
<?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">
<mapper namespace="com.lanson.mapper.UserMapper">
<!--User findUser(String uname, String password);-->
<select id="findUser" resultType="user">
select * from user where uname =#{param1} and password =#{param2}
</select>
<!--findAllUser-->
<select id="findAllUser" resultType="user">
select * from user
</select>
</mapper>
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