一.创建spring的web工程
1.0 ssm流程概述
ssm的含义如下:
1.1 创建ssm-demo工程
1.选择maven的创建模板
2.设置坐标
3.设置maven
4.设置存储路径
5.初始结构
1.2 给工程配置相应web组件
1配置project
2.配置facet
如下图:
最后web工程结构:
二.ssm工程的配置(使用原始整合方式,service层使用加载配置文件的方式)
2.1 配置文件说明
2.2 pom文件中依赖的配置
<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>
<!-- 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>
<!-- spring mvc-->
<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>
<!-- mybaits -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<!-- 分页插件-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>3.7.5</version>
</dependency>
<dependency>
<groupId>com.github.jsqlparser</groupId>
<artifactId>jsqlparser</artifactId>
<version>0.9.1</version>
</dependency>
2.3 工程controller,dao。service等结构的搭建
2.3.1 controller层
package com.ljf.spring.ssm.demo.controller;
import com.ljf.spring.ssm.demo.bean.Account;
import com.ljf.spring.ssm.demo.service.AccountService;
import org.apache.log4j.Logger;
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 javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
/**
* @ClassName: AccountController
* @Description: TODO
* @Author: liujianfu
* @Date: 2021/02/20 14:33:00
* @Version: V1.0
**/
@Controller
@RequestMapping("/account")
public class AccountController {
private static Logger log = Logger.getLogger(AccountController.class);
@Autowired
private AccountService accountService;
@RequestMapping("/findAll")
public String findAll(Model model){
System.out.println("表现层:查询所有账户...");
log.info("表现层:查询所有账户...");
// 调用service的方法
List<Account> list = accountService.findAll();
model.addAttribute("list",list);
return "account_list";
}
/**
* 保存
* @return
*/
@RequestMapping("/save")
public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException {
log.info("表现层:保存账户信息...");
accountService.saveAccount(account);
response.sendRedirect(request.getContextPath()+"/account/findAll");
return;
}
}
2.3.2 service 层
@Service //相当于 <!--注册accountserviceImpl这个bean<bean id="accountService" class="com.ljf.spring.ssm.demo.service.impl.AccountServiceImpl"></bean>
1.service接口
package com.ljf.spring.ssm.demo.service;
import com.ljf.spring.ssm.demo.bean.Account;
import java.io.IOException;
import java.util.List;
public interface AccountService {
// 查询所有账户
public List<Account> findAll() ;
// 保存帐户信息
public void saveAccount(Account account);
}
2.service的实现层
package com.ljf.spring.ssm.demo.service.impl;
import com.ljf.spring.ssm.demo.bean.Account;
import com.ljf.spring.ssm.demo.mapper.AccountMapper;
import com.ljf.spring.ssm.demo.service.AccountService;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Service;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
/**
* @ClassName: AccountServiceImpl
* @Description: TODO
* @Author: liujianfu
* @Date: 2021/02/19 23:25:38
* @Version: V1.0
**/
@Service //相当于 <!--注册accountserviceImpl这个bean<bean id="accountService" class="com.ljf.spring.ssm.demo.service.impl.AccountServiceImpl"></bean>
public class AccountServiceImpl implements AccountService {
@Override
public List<Account> findAll() {
List<Account> accountList=new ArrayList<>();
try {
InputStream resourceAsStream = Resources.getResourceAsStream("mybaitsConfig.xml");
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
SqlSession sqlSession = sqlSessionFactory.openSession(true);
AccountMapper mapper = sqlSession.getMapper(AccountMapper.class);
accountList = mapper.findAll();
sqlSession.close();
}
catch (Exception e){
e.printStackTrace();
}
return accountList;
}
@Override
public void saveAccount(Account account) {
List<Account> accountList=new ArrayList<>();
try {
InputStream resourceAsStream = Resources.getResourceAsStream("mybaitsConfig.xml");
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
SqlSession sqlSession = sqlSessionFactory.openSession(true);
AccountMapper mapper = sqlSession.getMapper(AccountMapper.class);
mapper.saveAccount(account);
sqlSession.commit();
sqlSession.close();
}
catch (Exception e){
e.printStackTrace();
}
}
}
2.3.3 mapper层(相当于dao层)
package com.ljf.spring.ssm.demo.mapper;
import com.ljf.spring.ssm.demo.bean.Account;
import java.util.List;
public interface AccountMapper {
// 查询所有账户
public List<Account> findAll();
// 保存帐户信息
public void saveAccount(Account account);
}
2.3.4 bean层
package com.ljf.spring.ssm.demo.bean;
import java.io.Serializable;
/**
* @ClassName: Account
* @Description: TODO
* @Author: liujianfu
* @Date: 2021/02/19 23:21:27
* @Version: V1.0
**/
public class Account implements Serializable {
private Integer id;
private String accountName;
private Double money;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getAccountName() {
return accountName;
}
public void setAccountName(String accountName) {
this.accountName = accountName;
}
public Double getMoney() {
return money;
}
public void setMoney(Double money) {
this.money = money;
}
@Override
public String toString() {
return "Account{" +
"id=" + id +
", accountName='" + accountName + '\'' +
", money=" + money +
'}';
}
}
2.4 Resource下配置文件的配置
2.4.1 log4j的配置
######################
## set log levels
######################
log4j.rootLogger=DEBUG,info,CONSOLE,FILEOUT
#DEBUG,CONSOLE,FILE,ROLLING_FILE,MAIL,DATABASE
log4j.addivity.org.apache=true
######################
## CONSOLE Appender ##
######################
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.Threshold=DEBUG
log4j.appender.CONSOLE.Target=System.out
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=[%-5p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%c] \:%m%n
#log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n\u00A0
#log4j.appender.CONSOLE.layout.ConversionPattern=[start]%d{DATE}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD] n%c[CATEGORY]%n%m[MESSAGE]%n%n
######################
## Rolling File Appender
######################
log4j.appender.FILEOUT=org.apache.log4j.RollingFileAppender
log4j.appender.FILEOUT.File=E:/logs/allError.log
#log4j.appender.FILEOUT.Threshold=ALL
log4j.appender.FILEOUT.Threshold=INFO
log4j.appender.FILEOUT.Append=true
log4j.appender.fileout.MaxFileSize=1000KB
#log4j.appender.ROLLING_FILE.MaxBackupIndex=1
log4j.appender.FILEOUT.layout=org.apache.log4j.PatternLayout
log4j.appender.FILEOUT.layout.ConversionPattern=[%-5p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%c] \:%m%n
#log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n\u00A0
#######################
#info log
log4j.logger.info=info
log4j.appender.info=org.apache.log4j.DailyRollingFileAppender
log4j.appender.info.DatePattern='_'yyyy-MM-dd'.log'
log4j.appender.info.File=d:/info.log
log4j.appender.info.Append=true
log4j.appender.info.Threshold=INFO
log4j.appender.info.layout=org.apache.log4j.PatternLayout
log4j.appender.info.layout.ConversionPattern=[%-5p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%c] \:%m%n
### File Appender
#######################
#log4j.appender.FILE=org.apache.log4j.FileAppender
#log4j.appender.FILE.File=E:/logs/all.log
#log4j.appender.FILE.Append=true
#log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
#log4j.appender.CONSOLE.layout.ConversionPattern=[%-5p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%c] \:%m%n
##log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n\u00A0
#####################
## Socket Appender
#####################
#log4j.appender.SOCKET=org.apache.log4j.RollingFileAppender
#log4j.appender.SOCKET.RemoteHost=localhost
#log4j.appender.SOCKET.Port=5001
#log4j.appender.SOCKET.LocationInfo=true
## Set up for Log Facter 5
#log4j.appender.SOCKET.layout=org.apache.log4j.PatternLayout
#log4j.appender.SOCET.layout.ConversionPattern=[start]%d{DATE}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD]%n%c[CATEGORY]%n%m[MESSAGE]%n%n
#########################
## Log Factor 5 Appender
#########################
#log4j.appender.LF5_APPENDER=org.apache.log4j.lf5.LF5Appender
#log4j.appender.LF5_APPENDER.MaxNumberOfRecords=2000
########################
## SMTP Appender
########################
#log4j.appender.MAIL=org.apache.log4j.net.SMTPAppender
#log4j.appender.MAIL.Threshold=FATAL
#log4j.appender.MAIL.BufferSize=10
#[email protected]
#log4j.appender.MAIL.SMTPHost=mail.openwolf.com
#log4j.appender.MAIL.Subject=Log4J Message
#[email protected]
#log4j.appender.MAIL.layout=org.apache.log4j.PatternLayout
#log4j.appender.MAIL.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n
#########################
## JDBC Appender
########################
#log4j.appender.DATABASE=org.apache.log4j.jdbc.JDBCAppender
#log4j.appender.DATABASE.URL=jdbc:mysql://localhost:3306/test
#log4j.appender.DATABASE.driver=com.mysql.jdbc.Driver
#log4j.appender.DATABASE.user=root
#log4j.appender.DATABASE.password=root
#log4j.appender.DATABASE.sql=INSERT INTO LOG4J (Message) VALUES ('[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n')
#log4j.appender.DATABASE.layout=org.apache.log4j.PatternLayout
#log4j.appender.DATABASE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n
#log4j.appender.A1=org.apache.log4j.DailyRollingFileAppender
#log4j.appender.A1.File=SampleMessages.log4j
#log4j.appender.A1.DatePattern=yyyyMMdd-HH'.log4j'
#log4j.appender.A1.layout=org.apache.log4j.xml.XMLLayout
####################
### myself Appender
####################
#log4j.appender.im = net.cybercorlin.util.logger.appender.IMAppender
#log4j.appender.im.host = mail.cybercorlin.net
#log4j.appender.im.username = username
#log4j.appender.im.password = password
#log4j.appender.im.recipient = [email protected]
#log4j.appender.im.layout=org.apache.log4j.PatternLayout
#log4j.appender.im.layout.ConversionPattern =[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n
2.4.2 mbaits-jdbc的配置
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/nongda
jdbc.username=root
jdbc.password=
2.4.3 mbaitsConfig的配置
<?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>
<properties resource="mybaits-jdbc.properties"></properties>
<!--1. 起别名-->
<typeAliases>
<typeAlias type="com.ljf.spring.ssm.demo.bean.Account" alias="yonghu"></typeAlias>
</typeAliases>
<!-- 2.注册类型注册器
<typeHandlers>
<typeHandler handler="com.mybaits.demo.handler.DataTypeTransfer"></typeHandler>
</typeHandlers>
-->
<!--3.配置分页插件 -->
<plugins>
<plugin interceptor="com.github.pagehelper.PageHelper">
<property name="dialect" value="mysql"/>
</plugin>
</plugins>
<!-- 4.数据源环境 -->
<environments default="development">
<environment id="development">
<transactionManager type="JDBC"></transactionManager>
<dataSource type="POOLED">
<property name="driver" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</dataSource>
</environment>
</environments>
<!-- 5.xxxmapper.xml都要在mybaits.config.xml文件中注册-->
<mappers>
<mapper resource="com/mybaits/mapper/AccountMapper.xml"></mapper>
</mappers>
</configuration>
2.4.4 spring文件的配置
<?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">
<!--step1:开启注解的扫描,希望处理service和dao,但是controller不需要Spring框架去处理-->
<context:component-scan base-package="com.ljf.spring.ssm.demo" >
<!--排除controller的扫描,配置哪些注解不扫描-->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<!--注册accountserviceImpl这个bean
<bean id="accountService" class="com.ljf.spring.ssm.demo.service.impl.AccountServiceImpl"></bean>
-->
</beans>
2.4.5 spring-mvc文件的配置
<?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">
<!--step1:开启注解扫描,只扫描Controller注解-->
<context:component-scan base-package="com.ljf.spring.ssm.demo">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<!--step2:配置的视图解析器对象-->
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
</bean>
<!--step3:过滤静态资源-->
<mvc:resources location="/css/" mapping="/css/**" />
<mvc:resources location="/images/" mapping="/images/**" />
<mvc:resources location="/js/" mapping="/js/**" />
<!--step4:开启SpringMVC注解的支持-->
<mvc:annotation-driven/>
</beans>
2.4.6 mybaits的映射文件(AccountMapper)
需要手动一层层的创建目录:com\mybaits\mapper\AccountMapper.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="yonghuMapper"> -->
<mapper namespace="com.ljf.spring.ssm.demo.mapper.AccountMapper">
<!-- 查询, 在mybaitsconfig.xml文件中给起了别名 -->
<select id="findAll" resultType="yonghu">
select id,account_name accountName,money from tb_account
</select>
<!-- 添加-->
<insert id="saveAccount" parameterType="com.ljf.spring.ssm.demo.bean.Account">
insert into tb_account(id,account_name,money) values(#{id},#{accountName},#{money})
</insert>
</mapper>
2.4.7 结构概览
2.5 静态资源目录的创建
2.6 web页面的配置
2.6.1 index.jsp
<%--
Created by IntelliJ IDEA.
User: jurfl
Date: 2021/2/20
Time: 14:51
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<a href="${pageContext.request.contextPath}/account/findAll">测试查询</a>
<h3>账户录入页面</h3>
<form action="${pageContext.request.contextPath}/account/save" method="post">
姓名:<input type="text" name="accountName" /><br/>
金额:<input type="text" name="money" /><br/>
<input type="submit" value="保存"/><br/>
</form>
</body>
</body>
</html>
2.6.2 list页面的创建
需要在web-info下面创建pages目录,然后将account_list页面存放此目录下
<%--
Created by IntelliJ IDEA.
User: jurfl
Date: 2021/2/20
Time: 14:56
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<h3>查询所有的帐户</h3>
<table border="1" cellpadding="1" cellspacing="1" width="500px" >
<tr>
<td>id</td>
<td>姓名</td>
<td>金额</td>
</tr>
<c:forEach items="${list}" var="account">
<tr>
<td>${account.id}</td>
<td>${account.accountName}</td>
<td>${account.money}</td>
</tr>
</c:forEach>
</table>
</body>
</html>
2.7 web.xml的配置
<?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">
<display-name>Archetype Created Web Application</display-name>
<!--step1:配置Spring的监听器,默认只加载WEB-INF目录下的applicationContext.xml配置文件-->
<!--设置配置文件的路径 这里是放到了resouces目录下-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!-- 需要多个加载,可以多起几个context-param标签
<context-param>
<param-name/>
<param-value/>
</context-param>
-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--step2:配置前端控制器-->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--加载spring-mvc.xml配置文件-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<!--启动服务器,创建该servlet-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--step3:解决中文乱码的过滤器-->
<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>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
2.8 数据库设计
CREATE TABLE `tb_account` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`account_name` varchar(255) DEFAULT NULL,
`money` double(255,0) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
2.9 发布部署
2.9.1 配置artifacts
选中项目,选择 file---》project struct,然后按照下面操作
2.9.2 配置tomcat
1.找到edit configuration
2.设置tomcat
3.设置部署
2.10 启动测试
2.10.1 启动
2.10.2 页面录入
2.10.3 页面查询列表
三.ssm工程的配置(使用spring和mybaits的整合,session交给spring容器管理)
在前面的操作方式中,每次service即业务层与数据库交互,都要开启session,关闭session,比较累赘,现在改为使用spring容器来实现管理。
1.将session工程交给spring容器进行管理,从容器中获得执行操作的mapper实例即可。
2.将事务的控制交给spring容器进行声明式事务控制。
3.1 配置dao层
3.2 service的实现层
package com.ljf.spring.ssm.demo.service.impl;
import com.ljf.spring.ssm.demo.bean.Account;
import com.ljf.spring.ssm.demo.mapper.AccountMapper;
import com.ljf.spring.ssm.demo.service.AccountService;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Service;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
/**
* @ClassName: AccountServiceImpl
* @Description: TODO
* @Author: liujianfu
* @Date: 2021/02/19 23:25:38
* @Version: V1.0
**/
@Service //相当于 <!--注册accountserviceImpl这个bean<bean id="accountService" class="com.ljf.spring.ssm.demo.service.impl.AccountServiceImpl"></bean>
public class AccountServiceImpl implements AccountService {
@Autowired
private AccountMapper accountMapper;
@Override
public List<Account> findAll() {
List<Account> accountList=new ArrayList<>();
/**
try {
InputStream resourceAsStream = Resources.getResourceAsStream("mybaitsConfig.xml");
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
SqlSession sqlSession = sqlSessionFactory.openSession(true);
AccountMapper mapper = sqlSession.getMapper(AccountMapper.class);
accountList = mapper.findAll();
sqlSession.close();
}
catch (Exception e){
e.printStackTrace();
}
return accountList;
**/
accountList =accountMapper.findAll();
return accountList;
}
@Override
public void saveAccount(Account account) {
List<Account> accountList=new ArrayList<>();
/**
try {
InputStream resourceAsStream = Resources.getResourceAsStream("mybaitsConfig.xml");
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
SqlSession sqlSession = sqlSessionFactory.openSession(true);
AccountMapper mapper = sqlSession.getMapper(AccountMapper.class);
mapper.saveAccount(account);
sqlSession.commit();
sqlSession.close();
}
catch (Exception e){
e.printStackTrace();
}
**/
accountMapper.saveAccount(account);
}
}
3.3 配置spring的配置文件 (applicationContext.xml)
1.其实就是将mybaits的session交个spring的容器进行管理
2.在applicationContext.xml文件中加载引入mybaitsConfig-spring.xml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/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">
<!--step1:开启注解的扫描,希望处理service和dao,但是controller不需要Spring框架去处理-->
<context:component-scan base-package="com.ljf.spring.ssm.demo" >
<!--排除controller的扫描,配置哪些注解不扫描-->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<!--注册accountserviceImpl这个bean
<bean id="accountService" class="com.ljf.spring.ssm.demo.service.impl.AccountServiceImpl"></bean>
-->
<!--Spring整合MyBatis框架-->
<!--step2:加载jdbc连接信息 -->
<context:property-placeholder location="classpath:mybaits-jdbc.properties"></context:property-placeholder>
<!--step3:配置连接池-->
<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}"/>
</bean>
<!--step4:配置SqlSessionFactory工厂-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!--加载mybaits的核心配置文件 -->
<property name="configLocation" value="classpath:mybaitsConfig-spring.xml"></property>
</bean>
<!--step5:配置AccountDao接口对应的AccountMapper.xml的路径-->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.ljf.spring.ssm.demo.mapper"/>
</bean>
<!--step6:配置Spring框架声明式事务管理-->
<!--配置事务管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!--配置事务通知-->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="find*" read-only="true"/>
<tx:method name="*" isolation="DEFAULT"/>
</tx:attributes>
</tx:advice>
<!--配置AOP 织入增强-->
<aop:config>
<aop:advisor advice-ref="txAdvice" pointcut="execution(* com.ljf.spring.ssm.demo.service.impl.*ServiceImpl.*(..))"/>
</aop:config>
</beans>
3.5 mybaitsConfig-spring.xml的配置文件
<?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>
<!--1. 起别名-->
<typeAliases>
<typeAlias type="com.ljf.spring.ssm.demo.bean.Account" alias="yonghu"></typeAlias>
</typeAliases>
<!-- 2.注册类型注册器
<typeHandlers>
<typeHandler handler="com.mybaits.demo.handler.DataTypeTransfer"></typeHandler>
</typeHandlers>
-->
<!--3.配置分页插件 -->
<plugins>
<plugin interceptor="com.github.pagehelper.PageHelper">
<property name="dialect" value="mysql"/>
</plugin>
</plugins>
<!-- 4.xxxmapper.xml都要在mybaits.config.xml文件中注册-->
<mappers>
<mapper resource="com/mybaits/mapper/AccountMapper.xml"></mapper>
</mappers>
</configuration>