SSM项目搭建--数据库的增删改查
文章目录
- 配置环境
- 创建项目
- 项目结构和源代码
- 项目结构
- mysql中的表结构
- 相关代码
- 使用tomcat启动项目
本文章将介绍如何搭建一个简单的基于SSM的Java项目。
配置环境
IntelliJ IDEA 2019.2
Maven 3.6.1
jdk 1.8
tomcat 7.0
mysql 5.5
创建项目
- 打开IDEA，右侧选择Maven–导入jdk包–选择“Create from archetype”–选择webapp–下一步。
如果右侧没有Maven选择，可能是没有破解–>破解IDEA请移步
- GroupId和ArtifactId填写无要求
- 选择自己安装好的Mevan库的路径。
- 选择1按钮，如果.m2文件下没有setting.xml文件，就选择安装Maven目录下的conf下的setting.xml文件。选择2的“+”，新建一个Mevan Property。设置Name为archetypeCatalog，Value为internal。点击下一步。
- 填写项目名和所存放的文件夹，点击“finsh”完成maven工程的创建。
- 进入该工程后，将会进行自动配置导包。选择Enable Auto-import进行自动导包。若出现BUILD SUCCESS代表项目创建成功。
项目结构和源代码
项目结构如下：红色标记的为代码部分，我会给出所有代码，并给出相关解释
源代码获取路径：
链接：https://pan.baidu.com/s/1A8O1crBFsq_XhUun2gWNJw
提取码：qmu3
复制这段内容后打开百度网盘手机App，操作更方便哦
项目结构
mysql中的表结构
表名为userinfo，表结构如下：
相关代码
- Userinfo类
package com.suelta.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 + '\'' +
'}';
}
}
- UserController 类
package com.suelta.controller;
import com.suelta.bean.Userinfo;
import com.suelta.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.List;
//决定跳转到哪里
@Controller //Spring注解，相当于servlet的作用
@RequestMapping("user")
public class UserController {
@Autowired
private IUserService userService;
@RequestMapping("/findAll.do")
public ModelAndView findAll(){
List<Userinfo> userinfos = userService.findAll();
ModelAndView mv = new ModelAndView(); //用来传数据给前端，也就是jsp文件
mv.addObject("ui",userinfos);
mv.setViewName("allUser");
return mv;
}
@RequestMapping(value = "/save.do", method = RequestMethod.POST)
public String addUser(HttpServletRequest request, HttpSession session,Userinfo userinfo){
userService.addUser(userinfo);
return "redirect:/user/findAll.do"; //重定向
}
@RequestMapping("toAddUser")
public String toAddUser(){
return "addUser";
}
@RequestMapping("toUpdate")
public String toUpdate(Model model,Long id){
model.addAttribute("userInfo",userService.findOne(id)); //往前台传数据
return "updateUser";
}
@RequestMapping(value = "/update.do", method = RequestMethod.POST)
public String updateUser(Model model,Userinfo userinfo){
userService.update(userinfo);
return "redirect:/user/findAll.do";
}
@RequestMapping("/delete.do")
public String deleteUser(Long id){
userService.deleteUser(id);
return "redirect:/user/findAll.do";
}
}
- IUserDao 接口
package com.suelta.dao;
import com.suelta.bean.Userinfo;
import java.util.List;
public interface IUserDao {
public List<Userinfo> findAll();
public Integer addUser(Userinfo userinfo);
public Integer deleteUser(Long id);
public Integer updateUser(Userinfo userinfo);
public Userinfo findOne(Long id);
}
- UserServiceImpl 类
package com.suelta.service.impl;
import com.suelta.bean.Userinfo;
import com.suelta.dao.IUserDao;
import com.suelta.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class UserServiceImpl implements IUserService {
@Autowired
IUserDao userDao;
@Override
public List<Userinfo> findAll() {
return userDao.findAll();
}
@Override
public Integer addUser(Userinfo userinfo) {
return userDao.addUser(userinfo);
}
@Override
public Integer deleteUser(Long id) {
return userDao.deleteUser(id);
}
@Override
public Integer update(Userinfo userinfo) {
return userDao.updateUser(userinfo);
}
@Override
public Userinfo findOne(Long id) {
return userDao.findOne(id);
}
}
- IUserService 接口
package com.suelta.service;
import com.suelta.bean.Userinfo;
import java.util.List;
public interface IUserService {
public List<Userinfo> findAll();
public Integer addUser(Userinfo userinfo);
public Integer deleteUser(Long id);
public Integer update(Userinfo userinfo);
public Userinfo findOne(Long id);
}
- UserinfoMapper.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.suelta.dao.IUserDao" >
<!-- id为实现的方法名，resultType为返回类型 -->
<select id="findAll" resultType="com.suelta.bean.Userinfo">
select * from userinfo
</select>
<!-- parameterType为输入类型 -->
<!-- #{}实现的是向prepareStatement中的预处理语句中设置参数值 -->
<!-- ${}可以将parameterType 传入的内容拼接在sql中且不进行jdbc类型转换， ${}可以接收简单类型值或pojo属性值 -->
<select id="addUser" parameterType="com.suelta.bean.Userinfo">
insert into userinfo(id,username,password) values (#{id},#{username},#{password})
</select>
<select id="deleteUser" parameterType="long">
delete from userinfo where id = #{id}
</select>
<select id="updateUser" parameterType="com.suelta.bean.Userinfo">
update userinfo set username = #{username},password = #{password}
where id = #{id}
</select>
<select id="findOne" resultType="com.suelta.bean.Userinfo" parameterType="long">
select * from userinfo where id = #{id}
</select>
</mapper>
- applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<!-- 1.配置数据库相关参数properties的属性：${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.suelta.bean"></property>
<!--配置加载映射文件 UserMapper.xml-->
<property name="mapperLocations" value="classpath:mapper/*.xml"/>
</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.suelta.dao"/>
<!-- 注入sqlSessionFactory -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
<!--自动扫描-->
<context:component-scan base-package="com.suelta"/>
<!-- 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（这里需要修改你的mysql仓库，然后修改用户名和密码）
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/zypractice?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
<?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.suelta.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">
<!--为了能找到jspwe-->
<property name="prefix" value="/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
- addUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
// String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ request.getContextPath() + "/";
%>
<html>
<head>
<title>新增用户</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
基于SSM框架的管理系统：简单实现增、删、改、查。
</h1>
</div>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>新增用户</small>
</h1>
</div>
</div>
</div>
<form action="${pageContext.request.contextPath}/user/save.do"
method="post">
用 户 id：<input type="text" name="id"><br><br><br>
用户姓名：<input type="text" name="username"><br><br><br>
用户密码：<input type="text" name="password"><br><br><br>
<input type="submit" value="添加" >
</form>
</div>
- allUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>user列表</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
基于SSM框架的管理系统：简单实现增、删、改、查。
</h1>
</div>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>用户列表 —— 显示所有用户</small>
</h1>
</div>
</div>
</div>
<div class="row">
<div class="col-md-4 column">
<a class="btn btn-primary" href="${pageContext.request.contextPath}/user/toAddUser.do">新增</a>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<table class="table table-hover table-striped">
<thead>
<tr>
<th>id</th>
<th>用户名</th>
<th>密码</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${ui}" var="userinfo">
<tr>
<td>${userinfo.id}</td>
<td>${userinfo.username}</td>
<td>${userinfo.password}</td>
<td>
<a href="${pageContext.request.contextPath}/user/toUpdate.do?id=${userinfo.id}">更改</a> |
<a href="${pageContext.request.contextPath}/user/delete.do?id=${userinfo.id}">删除</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
</div>
- updateUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>修改论文</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
基于SSM框架的管理系统：简单实现增、删、改、查。
</h1>
</div>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>修改用户</small>
</h1>
</div>
</div>
</div>
<form action="${pageContext.request.contextPath}/user/update.do"
method="post">
<input type="hidden" name="id" value="${userInfo.id}"/>
用户姓名：<input type="text" name="username" value="${userInfo.username}"/>
用户密码：<input type="text" name="password" value="${userInfo.password}"/>
<input type="submit" value="提交" />
</form>
</div>
- web.xml
<?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">
<!-- 配置加载类路径的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:applicationContext.xml</param-value>
</context-param>
<!-- 配置监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<!-- 解决中文乱码过滤器 -->
<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>/*
dispatcherServlet
org.springframework.web.servlet.DispatcherServlet
contextConfigLocation
classpath:spring-mvc.xml
1
dispatcherServlet
*.do
- index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false"%>
<html>
<body>
<h2>Hello World!</h2>
<a href="${pageContext.request.contextPath}/user/findAll.do">
显示数据库数据
</a>
</body>
</html>
- pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.suelta</groupId>
<artifactId>ssmweb4</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>ssmweb4 Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<!-- spring版本号 -->
<spring.version>5.0.2.RELEASE</spring.version>
<!-- mybatis版本号 -->
<mybatis.version>3.2.6</mybatis.version>
<!-- log4j日志文件管理包版本 -->
<slf4j.version>1.7.7</slf4j.version>
<log4j.version>1.2.17</log4j.version>
<c3p0.version>0.9.5.2</c3p0.version>
<taglibs.version>1.1.2</taglibs.version>
</properties>
<dependencies>
<!-- spring核心包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${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>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- mybatis核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- mybatis/spring包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 导入java ee jar 包 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
<!-- 导入Mysql数据库链接jar包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.30</version>
</dependency>
<!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
<!-- JSTL标签类 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- 日志文件管理包 -->
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<!-- 数据连接池 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>${c3p0.version}</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>${taglibs.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>
<!-- 导入servlet-api/jsp -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet.jsp/javax.servlet.jsp-api -->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.1</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>ssmweb4</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
使用tomcat启动项目
- 在顶部找到run->Edit Configurations
- 进入环境配置后，点击左上角的"+"->tomcat->local
- 填写name(如tomcat7)->选择configure
- 在Tomcat Home中选择安装的tomcat所在的文件，点击ok
- 选择Deplogment->点击右侧的“+”号->选择Artficat…
- 选择exploded包，点击ok。
7. 到此配置完tomcat环境，在index.jsp页面右键run即可。
SSM小项目就这样了，如有疑问请留言，我们一起交流。