关于Spring+SpringMVC+MyBatis+Mysql+Maven实现简易的登录操作（详细）

环境：jdk1.8 Tomcat8.5

文件的结构

1、pom.xml配置文件

<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>SSM-Login</groupId>
<artifactId>SSM-Login</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<dependencies>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>

<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>
<!-- MySQL驱动连接 -->
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>

<!-- spring mvc json支持包 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.8</version>
</dependency>

<!-- log4j配置文件 -->
<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.11.2</version>
</dependency>

<!-- servlet API配置 -->
<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>

<!-- spring与mybatis整合所需要的配置 -->

<!-- spring-mybatis的配置 -->
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.0</version>
</dependency>

<!-- 配置数据源（Druid） -->
<!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.14</version>
</dependency>

<!-- 配置mybatis -->
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.0</version>
</dependency>

<!-- AOP第三方依赖 -->
<!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.2</version>
</dependency>

<!-- spring事务支持包 -->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>

<!-- spring-jdbc包配置 -->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>

</dependencies>
<build>

<plugins>

<plugin>

<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>

</plugin>

</plugins>

</build>

</project>

2、web.xml配置文件

<?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_3_1.xsd"
version="3.1">
<display-name>SSM-Login</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>

<!-- 默认过滤器配置 -->
<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>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- spring监听器负责自动加载spring根容器及其配置文件spring根容器管理业务层和持久层对象 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-mybatis.xml</param-value>
</context-param>
<!-- spring前端控制器（实际上是一个servlet，是一个总控制器）， 负责加载管理控制层对象(如：Controller 业务控制器)的spring容器及其配置文件 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-servlet.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>

3、spring-servlet.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:tx="http://www.springframework.org/schema/tx"
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-4.0.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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

<!-- 把某个包中有注解的类扫描到程序中 -->
<context:component-scan base-package="com.tnr.controller" />

<!-- 启用注解 -->
<mvc:annotation-driven/>

<!-- 默认对静态资源的访问 -->
<mvc:default-servlet-handler/>

<!-- 配置根视图 -->
<mvc:view-controller path="/" view-name="redirect:/login"/>

</beans>

4、spring-mybatis.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: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.tnr.service"></context:component-scan>

<!-- 配置Druid数据源（德鲁伊） -->
<bean id="dataSource"
class="com.alibaba.druid.pool.DruidDataSource" init-method="init"
destroy-method="close">
<property name="url" value="jdbc:mysql://localhost:3306/user" />
<property name="username" value="root" />
<property name="password" value="root" />

<property name="filters" value="stat" />

<property name="maxActive" value="20" />
<property name="initialSize" value="1" />
<property name="maxWait" value="60000" />
<property name="minIdle" value="1" />

<property name="timeBetweenEvictionRunsMillis" value="60000" />
<property name="minEvictableIdleTimeMillis" value="300000" />

<property name="validationQuery" value="select 1" />
<property name="testWhileIdle" value="true" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />

<property name="poolPreparedStatements" value="true" />
<property name="maxOpenPreparedStatements" value="20" />

<property name="asyncInit" value="true" />
</bean>

<!-- 配置SqlSessionFactory -->
<bean id="sqlSessionFactory"
class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations"
value="classpath*:mybatis/mappers/**/*.xml" />

</bean>

<!-- 配置映射器扫描 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.tnr.mapper" />
</bean>

<!-- 配置事务管理器 -->
<bean id="txManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 配置事务通知 ;事务通知与事务管理器中的id和transaction-manager名称必须一样 -->
<tx:advice id="txAdvice" transaction-manager="txManager">
<!-- the transactional semantics... -->
<tx:attributes>
<!-- all methods starting with 'get' are read-only -->
<tx:method name="get*" read-only="true" />
<!-- other methods use the default transaction settings (see below) -->
<tx:method name="*" rollback-for="com.lang.Exception"
timeout="30" propagation="REQUIRED" />
</tx:attributes>

</tx:advice>

<!-- 配置事务切面(切接口) -->
<aop:config>
<aop:pointcut id="serviceCut"
expression="execution(* com.tnr.service.*Service.*(..))" />
<aop:advisor advice-ref="txAdvice"
pointcut-ref="serviceCut" />
</aop:config>
</beans>

5、log4j2.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout
pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
</Console>
</Appenders>
<Loggers>
<Logger additivity="false"
name="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"
level="trace">
<AppenderRef ref="Console" />
</Logger>
<Root level="debug">
<AppenderRef ref="Console" />
</Root>
</Loggers>
</Configuration>

6、db.properties配置（数据库）

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/+“数据库库名”
jdbc.user=数据库用户名
jdbc.password=数据库密码

7、login.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>登录界面</title>
</head>
<body>
<body>

<form method="post" action="login">

<table>

<tr>

<td>用户名:<input type="text" name="u_id" id="userName"></td>

</tr>

<tr>

<td>密码:<input type="password" name="u_pwd" id="password"></td>

</tr>

<tr>

<td>
<input type="submit" value="登录" style="background-color: pink">
<input type="reset" value="重置" style="background-color: red">
</td>

</tr>

</table>

</form>

</body>

</body>

</html>

8、LoginController.java

package com.tnr.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.tnr.model.User;
import com.tnr.service.LoginService;

@Controller
public class LoginController {

@Autowired
private LoginService loginService;

@RequestMapping("/login")
public String LoginDo(User user) {

User us= loginService.checkLogin(user);
if(us==null) {
System.out.println(">>>>");
return "/login.jsp";
}else {
System.out.println("<<<<<<");
return "redirect:/index.jsp";
}
}

}

9、LoginService.java

package com.tnr.service;

import org.springframework.stereotype.Service;

import com.tnr.model.User;
@Service
public interface LoginService {

User checkLogin(User user);

}

10、LoginServiceImpl.java

package com.tnr.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.tnr.mapper.UserMapper;
import com.tnr.model.User;
import com.tnr.service.LoginService;

@Service
@Transactional
public class LoginServiceImpl implements LoginService {

@Autowired
private UserMapper usermapper;

@Override
public User checkLogin(User user) {

return usermapper.Login(user);
}

}

11、实体类User.java

package com.tnr.model;

public class User {

private String u_id;
private String u_name;
private String u_pwd;

public String getU_id() {
return u_id;
}
public void setU_id(String u_id) {
this.u_id = u_id;
}
public String getU_name() {
return u_name;
}
public void setU_name(String u_name) {
this.u_name = u_name;
}
public String getU_pwd() {
return u_pwd;
}
public void setU_pwd(String u_pwd) {
this.u_pwd = u_pwd;
}

@Override
public String toString() {
return "User [u_id=" + u_id + ", u_name=" + u_name + ", u_pwd=" + u_pwd + "]";
}

}

12、UserMapper.java

package com.tnr.mapper;

import org.apache.ibatis.annotations.Select;

import com.tnr.model.User;

public interface UserMapper {

@Select("select * from us where u_id=#{u_id} and u_pwd=#{u_pwd}")
public User Login(User user);

}

————————————————
版权声明：本文为CSDN博主「Molly-hu」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。

• 点赞
• 收藏
• 分享
• 文章举报