1.先在idea中新建一个项目,File->new->project。选Maven,注意要选jdk1.8,点Next.
2.k这里地Group,Artifactld自己填,点Next.
3.点finish。
4.ssm_parent1作为父类,不写任何东西,然后需要在ssm_parent1下面创建四个Module:ssm_bean,ssm_service,ssm_dao,ssm_web。
然后在每个Module的java下面创建包、类、接口什么的,需要说的是,ssm_web下面可能最初没有java和resources,需要自己建Directory,然后右击,找到Mark Directory as,分别选Source Root,Resources Root。
建的Packge、Directory、File之类的直接上图:
6.userInfo:
package com.zhongruan.bean;
public class UserInfo {
private int id;
private String username;
private String password;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
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;
}
@Override
public String toString() {
return "UserInfo{" +
"id=" + id +
", username='" + username + '\'' +
", password='" + password + '\'' +
'}';
}
}
IUserDao:
package com.zhongruan.dao;
import com.zhongruan.bean.UserInfo;
import java.util.List;
public interface IUserDao {
public UserInfo doLogin(UserInfo userInfo);
public List<UserInfo> findAll();
public void delete(int id);
public void update(UserInfo userInfo);
public void insert(UserInfo userInfo);
public UserInfo findId(int id);
}
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.zhongruan.dao.IUserDao" >
<select id="doLogin" parameterType="com.zhongruan.bean.UserInfo"
resultType="com.zhongruan.bean.UserInfo">
select * from userinfo where username=#{username} and password=#{password}
</select>
<select id="findAll" resultType="com.zhongruan.bean.UserInfo">
select * from userinfo
</select>
<insert id="insert" parameterType="com.zhongruan.bean.UserInfo">
insert into userinfo values (#{id},#{username},#{password})
</insert>
<delete id="delete" parameterType="java.lang.Integer">
delete from userinfo where id =#{id}
</delete>
<update id="update" parameterType="com.zhongruan.bean.UserInfo">
update userinfo set username=#{username},password=#{password} where id=#{id}
</update>
<select id="findId" parameterType="java.lang.Integer" resultType="com.zhongruan.bean.UserInfo">
select * from userinfo where id=#{id}
</select>
</mapper>
UserService:
package com.zhongruan.service.impl;
import com.github.pagehelper.PageHelper;
import com.zhongruan.bean.UserInfo;
import com.zhongruan.dao.IUserDao;
import com.zhongruan.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class UserService implements IUserService {
@Autowired
private IUserDao userDao;
private int page;
private int size;
@Override
public boolean doLogin(UserInfo userInfo) {
UserInfo userInfo1 = userDao.doLogin(userInfo);
if (null != userInfo1) {
return true;
} else {
return false;
}
}
@Override
public List<UserInfo> findAll(int page,int size) {
PageHelper.startPage(page,size);
return userDao.findAll();
}
@Override
public void delete(int id) {
userDao.delete(id);
}
@Override
public void insert(UserInfo userInfo) {
userDao.insert(userInfo);
}
@Override
public void update(UserInfo userInfo) {
userDao.update(userInfo);
}
@Override
public UserInfo findId(int id) {
return userDao.findId(id);
}
}
IUserService:
package com.zhongruan.service;
import com.zhongruan.bean.UserInfo;
import javax.xml.registry.infomodel.User;
import java.util.List;
public interface IUserService {
public boolean doLogin(UserInfo userInfo);
public List<UserInfo> findAll(int page,int size);
public void update(UserInfo userinfo);
public UserInfo findId(int id);
public void delete(int id);
public void insert(UserInfo userInfo);
}
UserController:
package com.zhongruan.controller;
import com.github.pagehelper.PageInfo;
import com.zhongruan.bean.UserInfo;
import com.zhongruan.service.IUserService;
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.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import java.util.List;
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private IUserService userService;
private int page;
private int size;
@RequestMapping("/login.do")
public ModelAndView login(UserInfo userInfo){
ModelAndView mv=new ModelAndView();
boolean flag=userService.doLogin(userInfo);
if(flag){
mv.setViewName("main");
}else{
mv.setViewName("../failer");
}
return mv;
}
@RequestMapping("/findAll.do")
public ModelAndView findAll(int page,int size)
{
List<UserInfo> all=userService.findAll(page,size);
ModelAndView mv=new ModelAndView();
PageInfo<UserInfo> pageInfos=new PageInfo<>(all);
mv.addObject("pageInfo",pageInfos);
mv.setViewName("user-list");
return mv;
}
@RequestMapping("/save.do")
public ModelAndView save(UserInfo userinfo) {
userService.insert(userinfo);
ModelAndView mv = new ModelAndView();
mv = findAll(1,5);
return mv;
}
@RequestMapping("/delete.do")
public ModelAndView delete(int id) {
userService.delete(id);
ModelAndView mv=new ModelAndView();
mv=findAll(1,5);
return mv;
}
@RequestMapping("/toUpdate.do")
public ModelAndView toUpdate(int id) {
UserInfo userinfo = userService.findId(id);
ModelAndView mv = new ModelAndView();
mv.addObject("user",userinfo);
mv.setViewName("user-update");
return mv;
}
@RequestMapping("/update.do")
public ModelAndView update(UserInfo userinfo) {
userService.update(userinfo);
ModelAndView mv = new ModelAndView();
mv = findAll(1,5);
return mv;
}
}
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: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-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<!-- 1.配置数据库相关参数properties的属性:${url} -->
<context:property-placeholder location="classpath:db.properties"/>
<!-- 2.配置数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<property name="maxPoolSize" value="30"/>
<property name="minPoolSize" value="2"/>
</bean>
<!-- 3.配置SqlSessionFactory对象 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入数据库连接池 -->
<property name="dataSource" ref="dataSource"/>
<!-- 扫描bean包 使用别名 -->
<property name="typeAliasesPackage" value="com.zhongruan.bean"></property>
<!--配置加载映射文件 UserMapper.xml-->
<property name="mapperLocations" value="classpath:mapper/*.xml"/>
<property name="plugins">
<array>
<bean class="com.github.pagehelper.PageInterceptor">
<property name="properties">
<props>
<prop key="helperDialect">mysql</prop>
<prop key="resonable">true</prop>
</props>
</property>
</bean>
</array>
</property>
</bean>
<!-- 自动生成dao,mapper-->
<!-- 4.配置扫描Dao接口包,动态实现Dao接口,注入到spring容器中 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 给出需要扫描Dao接口包 -->
<property name="basePackage" value="com.zhongruan.dao"/>
<!-- 注入sqlSessionFactory -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
<!--自动扫描-->
<context:component-scan base-package="com.zhongruan"/>
<!-- 配置事务-->
<!-- 5.配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 6.开启事务注解-->
<tx:annotation-driven></tx:annotation-driven>
</beans>
db.properties:
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mysql?useSSL=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456
log4j.properties:
# Global logging configuration
log4j.rootLogger=DEBUG, stdout
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
spring-mvc.xml:
# Global logging configuration
log4j.rootLogger=DEBUG, stdout
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
<?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:mvc="http://www.springframework.org/schema/mvc"
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-4.3.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<!-- 1.注解扫描位置-->
<context:component-scan base-package="com.zhongruan.controller" />
<!-- 2.配置映射处理和适配器-->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>
<!-- 3.视图的解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/pages/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
运行结果: