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Maven+SpringMvc4+MyBatis+Jdk8+整合ssm架构

2018-01-23 16:50 351 查看
弄了个技术群：124641573。我平时会做一些群内分享，大家可以进来坐坐。

这篇文章的ssm架构事务是xml形式的，其实都是差不多，其实公司用注解事务更多一些，因为容易控制。
代码我也是放在git上面了。

如果你不想看文章，可以直接下载源码浏览，
1、https://gitee.com/redpigstu/ssm_demo_xml
2、https://gitee.com/imjcoder/ssm_demo_interface

1、在eclipse中新建maven项目
新建完你的项目如图：



这时候java、test都没有，需要简单配置下，右击项目选择最后一个属性：
做一些配置







之后你的项目会如下图：



2、下面开始配置把相关的pom里面的依赖加进来
<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>ssm_demo</groupId>
<artifactId>ssm_demo</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>ssm_demo Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>

<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- spring 相关jar -->
<!-- Spring 4.3.3 -->
<!-- Core Container 核心容器 -->
<!-- 核心工具类，Spring其它模块大量使用Spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 运行时Spring容器 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- Spring容器对第三方包的集成 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.3.3.RELEASE</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<!-- Spring定义Bean的支持 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 使用表达式语言在运行时查询和操作对象 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- End Core Container 核心容器 -->

<!-- AOP -->
<!-- 基于代理的AOP支持 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 基于AspectJ的AOP支持 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- aspectj -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.8.5</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.5</version>
</dependency>
<!-- End AOP -->

<!-- web -->
<!-- 提供基础的web集成的功能，在web项目中提供Spring容器 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供基于Servlet的SpringMVC -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供WebSocket功能 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-websocket</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供Portlet环境支持 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc-portlet</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>

<!-- json -->

<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-lgpl</artifactId>
<version>1.9.6</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.9.4</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.5</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-lgpl</artifactId>
<version>1.9.6</version>
</dependency>

<!-- End web -->

<!-- DataAccess/Integration 数据访问/集成 -->
<!-- 提供以JDBC访问数据库的支持 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供编程式和声明式的事务支持 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供对 对象/关系映射技术的支持 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供对JMS的支持 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- End DataAccess/Integration 数据访问/集成 -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- End Spring 4.0 -->

<!-- mybatis jar -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.1</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.21</version>
</dependency>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
<type>jar</type>
</dependency>

<!-- 打印日志 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.22</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.22</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>

<!-- jsp jar -->
<!-- JSP相关 -->

<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>

</dependencies>

<build>
<finalName>ssm_demo</finalName>

<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
<include>**/*.tld</include>
</includes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
<include>**/*.tld</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>

<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
<failOnError>true</failOnError>
<showDeprecation>true</showDeprecation>
<showWarnings>true</showWarnings>
</configuration>
</plugin>

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.4.3</version>
<configuration>
<skipTests>true</skipTests>
</configuration>
</plugin>

</plugins>
</build>
</project>
3、开始配置mybatis在src/main/resources下面新建文件夹mybatis,以及mybatis的xml配置文件：mybatis-config.xml
<?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>
<!-- 全局参数 -->
<settings>
<!-- 使全局的映射器启用或禁用缓存。 -->
<setting name="cacheEnabled" value="true"/>
<!-- 全局启用或禁用延迟加载。当禁用时，所有关联对象都会即时加载。 -->
<setting name="lazyLoadingEnabled" value="true"/>
<!-- 当启用时，有延迟加载属性的对象在被调用时将会完全加载任意属性。否则，每种属性将会按需要加载。 -->
<setting name="aggressiveLazyLoading" value="false"/>
<!-- 是否允许单条sql 返回多个数据集 (取决于驱动的兼容性) default:true -->
<setting name="multipleResultSetsEnabled" value="true"/>
<!-- 是否可以使用列的别名 (取决于驱动的兼容性) default:true -->
<setting name="useColumnLabel" value="true"/>
<!-- 允许JDBC 生成主键。需要驱动器支持。如果设为了true，这个设置将强制使用被生成的主键，有一些驱动器不兼容不过仍然可以执行。 default:false -->
<setting name="useGeneratedKeys" value="false"/>
<!-- 指定 MyBatis 如何自动映射 数据基表的列 NONE：不隐射　PARTIAL:部分 FULL:全部 -->
<setting name="autoMappingBehavior" value="PARTIAL"/>
<!-- 这是默认的执行类型 （SIMPLE: 简单； REUSE: 执行器可能重复使用prepared statements语句；BATCH: 执行器可以重复执行语句和批量更新） -->
<setting name="defaultExecutorType" value="SIMPLE"/>
<!-- 使用驼峰命名法转换字段。 -->
<!-- <setting name="mapUnderscoreToCamelCase" value="true"/> -->
<!-- 设置本地缓存范围 session:就会有数据的共享 statement:语句范围 (这样就不会有数据的共享 ) defalut:session -->
<setting name="localCacheScope" value="SESSION"/>
<!-- 设置但JDBC类型为空时,某些驱动程序 要指定值,default:OTHER，插入空值时不需要指定类型 -->
<setting name="jdbcTypeForNull" value="NULL"/>
</settings>
</configuration>
4、配置spring相关在src/main/resources下面新建文件夹spring
   ①、新建文件名：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: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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 扫描到有@Component @Controller@Service等这些注解的类 ,则把这些类注册为bean -->
<!-- spring不要扫MVC的controller,否则引起事务失效 -->
<context:component-scan base-package="com">
<context:exclude-filter type="annotation"
expression="org.springframework.stereotype.Controller" />
</context:component-scan>

<!-- 数据库连接池 :dataSource -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="com.mysql.jdbc.Driver" />
<property name="jdbcUrl"
value="jdbc:mysql://localhost:3300/ssm_demo?useUnicode=true&characterEncoding=UTF-8" />
<property name="user" value="root" />
<property name="password" value="root" />
<property name="minPoolSize" value="1" />
<property name="maxPoolSize" value="20" />
<property name="maxIdleTime" value="1800" />
<property name="acquireIncrement" value="2" />
<property name="maxStatements" value="0" />
<property name="initialPoolSize" value="2" />
<property name="idleConnectionTestPeriod" value="1800" />
<property name="acquireRetryAttempts" value="30" />
<property name="breakAfterAcquireFailure" value="true" />
<property name="testConnectionOnCheckout" value="false" />
</bean>
</beans>   ②、新建文件名applicationContext-mybatis.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: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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 定义Mybatis的SqlSessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 定义数据源 -->
<property name="dataSource" ref="dataSource" />
<!-- 指定mybatis全局配置文件 -->
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
<property name="mapperLocations" value="classpath:com/entity/*.xml" />
<!-- 别名扫描包 -->
<property name="typeAliasesPackage" value="com.entity"/>
</bean>

<!-- 配置自动生成接口的实现类
配置 转换器，对于在basePackage设置的包（包括子包）下的接口类，如果在Mapper.xml文件中定义过，
将被转换成spring的BEAN，在调用 的地方通过@Autowired方式将可以注入接口实例-->

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactory" ref="sqlSessionFactory"/>
<property name="basePackage" value="com.dao"/>
</bean>

</beans>
    ③、新建文件名：applicationContext-transaction.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
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-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/aop http://www.springframework.org/schema/aop/spring-aop-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/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"> 
<!-- 定义事务管理器 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>

<!-- 定义事务策略 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!--所有以query开头的方法都是只读的 -->
<tx:method name="query*" read-only="true" />
<!--其他方法使用默认事务策略 -->
<tx:method name="*" />
</tx:attributes>
</tx:advice>

<aop:config>
<!--pointcut元素定义一个切入点，execution中的第一个星号 用以匹配方法的返回类型，
这里星号表明匹配所有返回类型。 com.abc.dao.*.*(..)表明匹配com.service包下的所有类的所有
方法 -->
<aop:pointcut id="myPointcut" expression="execution(* com.service.*.*(..))" />
<!--将定义好的事务处理策略应用到上述的切入点 -->
<aop:advisor advice-ref="txAdvice" pointcut-ref="myPointcut" />
</aop:config>

</beans>
5、下面开始配置springmvc相关的  在src/main/resources/ spring文件夹下新建：SpringMVC.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: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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 同时开启json格式的支持 -->
<mvc:annotation-driven></mvc:annotation-driven>

<!-- spring mvc 扫描所有的controller 但是不扫描service -->
<context:component-scan base-package="com">
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Controller" />
<context:exclude-filter type="annotation"
expression="org.springframework.stereotype.Service" />
</context:component-scan>

<!-- 对模型视图名称的解析，即在模型视图名称添加前后缀 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" /><!--可为空,方便实现自已的依据扩展名来选择视图解释类的逻辑 -->
</bean>

</beans>6、配置日志##root logger , local level: debug, output: stdout ##
## root logger: better performance than others ##
log4j.rootLogger=info,stdout

log4j.appender.F=org.apache.log4j.DailyRollingFileAppender
log4j.appender.F.DatePattern='.'yyyy-MM-dd
log4j.appender.F.File=logs/ssm_demo.log
log4j.appender.F.layout=org.apache.log4j.PatternLayout
log4j.appender.F.layout.ConversionPattern=[%d{ISO8601}|%t|%-5p|%C] - %m%n
log4j.appender.F.encoding=UTF-8

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%d{HH:mm:ss}|%-5p|%c] - %m%n
#show application DEBUG log
log4j.logger.com.asecs = DEBUG,F
#show ibatis DEBUG log
log4j.logger.com.ibatis = DEBUG
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource = DEBUG
log4j.logger.com.ibatis.common.jdbc.ScriptRunner = DEBUG
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate = DEBUG
log4j.logger.java.sql.Connection = DEBUG
log4j.logger.java.sql.Statement = DEBUG
log4j.logger.java.sql.PreparedStatement = DEBUG
log4j.logger.java.sql.ResultSet = DEBUG 7、配置web.xml<?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_2_5.xsd" id="MyWebApp" version="2.5">
<display-name>my</display-name>

<!-- 加载(spring自身的,事务,mybatis)配置文件-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/applicationContext*.xml</param-value>
</context-param>

<!-- 防止spring内存溢出监听器 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>

<!--Spring的ApplicationContext 载入：Spring的监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!-- 加载SpringMVC的配置文件-->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/SpringMVC.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>

<filter>
<description>字符集过滤器</description>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<description>字符集编码</description>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- 配置session超时时间，单位分钟 -->
<session-config>
<session-timeout>60</session-timeout>
</session-config>

<!-- DEFAULT PAGE -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
8、新建表t_userCREATE TABLE `t_user` (
`username` varchar(255) NOT NULL,
`password` varchar(255) DEFAULT NULL,
PRIMARY KEY (`username`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;9、新建实体类Userpackage com.entity;

public class User {
private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}

}10、新建mybatis mapper配置文件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.dao.UserDao">
<resultMap id="BaseResultMap" type="com.entity.User">
<result column="username" property="username" />
<result column="password" property="password" />
</resultMap>
<sql id="Base_Column_List" >
username, password
</sql>
<select id="selectId" resultMap="BaseResultMap" parameterType="java.lang.String" >
select
<include refid="Base_Column_List" />
from t_user
where username = #{username,jdbcType=VARCHAR}
</select>
</mapper> 11、创建service接口package com.service;

import org.springframework.stereotype.Service;

import com.entity.User;

@Service
public interface UserService {
boolean doUserLogin(User user);

}
12、创建service实现类package com.service;

import java.util.List;

import javax.annotation.Resource;
import javax.annotation.Resources;

import org.springframework.stereotype.Service;

import com.dao.UserDao;
import com.entity.User;

@Service
public class UserServiceImpl implements UserService {

@Resource
private UserDao userDao;

public boolean doUserLogin(User user) {
List<User> list = userDao.selectId(user.getUsername());
if(list.size() == 0){
return false;
}else{
if(list.get(0).getPassword().equals(user.getPassword())){
return true;
}else{
return false;
}
}
}

}
13、创建UserDao接口package com.dao;

import java.util.List;

import org.springframework.stereotype.Repository;

import com.entity.User;

@Repository
public interface UserDao{
List<User> selectId(String username);
}
14、创建controllerpackage com.controller;

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

import com.entity.User;
import com.service.UserService;

@Controller
@RequestMapping("/test")
/*@ResponseBody */
public class LoginController {
@Autowired
private UserService userService; //基于接口的,用接口接收

@RequestMapping("/login.action") //url
public String dologin(User user, Model model){
if(userService.doUserLogin(user)){
System.out.println(user);
model.addAttribute("successMsg", "登陆成功！");//返回到页面所夹带的参数
model.addAttribute("name", user.getUsername());
return "/success";//返回的页面
}else{
model.addAttribute("failMsg", "用户不存在或密码错误！");
return "/fail";
}
}

}
至此配置完成，还有前端页面代码没有贴出来，大家需要的话到这里下载：https://gitee.com/redpigstu/ssm_demo_xml
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标签：  maven spring mybatis ssm
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