IDEA+Maven 整合SSM框架实现简单的增删改查（超详细、适合新手入门）

男娘i 2022-05-18 10:15 272阅读 0赞

## 选用SSM框架的原因 ##

--------------------

在目前的企业级Java应用中，Spring框架是必须的。Struts2框架与Spring的整合问题日益凸显，而Spring MVC作为新一代的MVC框架，因其可以与Spring框架无缝整合的特性收到了越来越多的欢迎。Hibernate框架在面对需要存储过程或者复杂SQL时显得力不从心，不能提供高效的数据库控制。而Mybatis框架作为持久层的框架，虽然需要自己编写SQL语句，但是其对高并发高响应的支持，以及对动态SQL和动态绑定的支持使其脱颖而出。

因此SSM框架（Spring + Spring MVC +Mybatis）逐渐取代了之前广泛使用的SSH框架（Spring + Struts2 + Hibernate），成为了目前使用最多的框架。

本文使用IDEA，利用Maven管理项目，整合SSM框架搭建论文管理系统，实现简单的增、删、改、查功能。步骤详细，讲解丰富，适合新手入门。

--------------------

## 开发工具 ##

*  IntelliJ IDEA Ultimate 2017.2.2
 *  Apache-tomcat-9.0.5
 *  JDK 1.8.0\_121
 *  MySQL 5.7
 *  Maven 3.3.9

--------------------

## 工程结构 ##

最终完成后的工程结构：   
![70][]

下面开始详细的讲解项目的开发过程。

--------------------

## IDEA+Maven搭建项目骨架 ##

**1. 新建Maven项目：**   
点击File -> New -> Project -> Maven -> 勾选 Create from archetype -> 选择 maven-archetype-webapp (**注意：此处不要错选成上面的cocoom-22-archetype-webapp**)   
![这里写图片描述][70 1]   
![这里写图片描述][70 2]  
在弹出的new project 选项卡中填写GroupId和Artifactid，其中GroupID是项目组织唯一的标识符，实际对应JAVA的包的结构，是main目录里java的目录结构，ArtifactID是项目的唯一的标识符，实际对应项目的名称，就是项目根目录的名称。对于入门练习，这两项可以随意填写。

![这里写图片描述][70 3]  
之后点击next 选择Maven版本**（其中IDEA 专业版自带Maven，也可以选择自己下载的maven）**。之后填写项目名称和项目地址，完成后点击Finish，完成项目骨架的创建。   
![这里写图片描述][70 4]

**2. 在新建的项目中添加所需要的文件/文件夹**

创建之后的项目如图所示，我们需要在这之上新建一些目录。   
![这里写图片描述][70 5]

在项目的根目录下新建target文件夹，系统自动将其设置为“Excluded”   
![这里写图片描述][70 6]   
在src/main目录下新建Directory：“java”，并将其设置为“Source Root”（即：此项目默认的代码文件源目录）   
![这里写图片描述][70 7]   
![这里写图片描述][70 8]   
在刚才新建的java文件下新建“com”包，再在com包下新建四个包，分别命名为：pojo,service,dao,controller。（如果出现下图中所示的包名重叠的情况，可以点击图中所示的图标，将“Hide empty middle package取消掉”）   
![这里写图片描述][70 9]   
上面新建的四个包：pojo,service,dao,controller，其所存放的分别是：

*  pojo: 存放自定义的java类。如：paper类，user类，book类等，每个类的属性设为private，并提供public属性的getter/setter方法让外界访问
 *  service：定义接口，包含系统所提供的功能。（之后还会在service包下再新建impl包）。
 *  dao：定义接口，包含与数据库进行交互的功能。
 *  controller：控制器，负责接收页面请求，转发和处理。

在resource包下新建Directory：“mapper”（**用于存放xxxMapper.xml文件**）和“spring”（**用于存放spring-xxx.xml配置文件**），新建文件：“jdbc.properties”（**mysql数据库配置文件**）,”log4j.properties”（**日志输出配置文件**）,”mybatis-config.xml”（**mybatis框架配置文件**）。   
![这里写图片描述][70 10]   
在web-inf目录下新建“jsp”包，存放xxx.jsp显示界面。   
补充之后的项目目录如下图所示，至此项目骨架搭建完毕，开始写代码实现增删改查功能。   
![这里写图片描述][70 11]

**3. 自定义Paper类**

在这之前要对项目的pom.xml文件进行配置，在此文件中配置项目所需要的jar包。

pom.xml

<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>com</groupId>
        <artifactId>first</artifactId>
        <packaging>war</packaging>
        <version>1.0-SNAPSHOT</version>
        <name>first Maven Webapp</name>
        <url>http://maven.apache.org</url>
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <spring.version>5.0.3.RELEASE</spring.version>
            <mybatis.version>3.4.4</mybatis.version>
        </properties>
        <dependencies>
            
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>3.8.1</version>
                <scope>test</scope>
            </dependency>
            
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-beans</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>${spring.version}</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-tx</artifactId>
                <version>${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>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
                <version>3.0.1</version>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>javax.servlet.jsp</groupId>
                <artifactId>jsp-api</artifactId>
                <version>2.2</version>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jstl</artifactId>
                <version>1.2</version>
            </dependency>
            <dependency>
                <groupId>taglibs</groupId>
                <artifactId>standard</artifactId>
                <version>1.1.2</version>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>2.9.4</version>
            </dependency>
            
            
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.38</version>
            </dependency>
            
            <dependency>
                <groupId>com.mchange</groupId>
                <artifactId>c3p0</artifactId>
                <version>0.9.5.2</version>
            </dependency>
            
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>1.3.1</version>
            </dependency>
            
            
            <dependency>
                <groupId>ch.qos.logback</groupId>
                <artifactId>logback-classic</artifactId>
                <version>1.1.1</version>
            </dependency>
        </dependencies>
        <build>
            <finalName>first</finalName>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    </project>

本项目所用的数据库为MySQL 5.7 建表语句如下：

SET FOREIGN_KEY_CHECKS=0;
    
    -- ----------------------------
    -- Table structure for `paper`
    -- ----------------------------
    DROP TABLE IF EXISTS `paper`;
    CREATE TABLE `paper` (
      `paper_id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'paperID',
      `name` varchar(100) NOT NULL COMMENT 'paper名称',
      `number` int(11) NOT NULL COMMENT 'paper数量',
      `detail` varchar(200) NOT NULL COMMENT 'paper描述',
      PRIMARY KEY (`paper_id`)
    ) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8 COMMENT='paper表';
    
    -- ----------------------------
    -- Records of paper
    -- ----------------------------
    INSERT INTO `paper` VALUES ('1', '机器学习', '2', 'mlmlmlml');
    INSERT INTO `paper` VALUES ('2', '深度学习', '3', 'dldldl');
    INSERT INTO `paper` VALUES ('3', '大数据', '4', 'bdbdbd');

**下面开始写java代码：**

*  在pojo包中新建Paper.java

package com.pojo;
    
    public class Paper {
        private long paperId;
        private String paperName;
        private int paperNum;
        private String paperDetail;
    
        public long getPaperId() {
            return paperId;
        }
    
        public void setPaperId(long paperId) {
            this.paperId = paperId;
        }
    
        public String getPaperName() {
            return paperName;
        }
    
        public void setPaperName(String paperName) {
            this.paperName = paperName;
        }
    
        public int getPaperNum() {
            return paperNum;
        }
    
        public void setPaperNum(int paperNum) {
            this.paperNum = paperNum;
        }
    
        public String getPaperDetail() {
            return paperDetail;
        }
    
        public void setPaperDetail(String paperDetail) {
            this.paperDetail = paperDetail;
        }
    
    }

中getter/setter方法可以在定义完私有属性之后使用IDEA提供的快捷键：ALT+Insert 来实现快速添加

![这里写图片描述][70 12]   
![这里写图片描述][70 13]

*  在service包中新建**接口** PaperService：

package com.service;
    
    import com.pojo.Paper;
    
    import java.util.List;
    
    public interface PaperService {
        int addPaper(Paper paper);
    
        int deletePaperById(long id);
    
        int updatePaper(Paper paper);
    
        Paper queryById(long id);
    
        List<Paper> queryAllPaper();
    }

*  在service包下新建impl包，并在此包中新建PaperServiceImpl.java

package com.service.impl;
    
    import com.pojo.Paper;
    import com.dao.PaperDao;
    import com.service.PaperService;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    import java.util.List;
    
    @Service
    public class PaperServiceImpl implements PaperService {
        @Autowired
        private PaperDao paperDao;
    
        @Override
        public int addPaper(Paper paper) {
            return paperDao.addPaper(paper);
        }
    
        @Override
        public int deletePaperById(long id) {
            return paperDao.deletePaperById(id);
        }
    
        @Override
        public int updatePaper(Paper paper) {
            return paperDao.updatePaper(paper);
        }
    
        @Override
        public Paper queryById(long id) {
            return paperDao.queryById(id);
        }
    
        @Override
        public List<Paper> queryAllPaper() {
            return paperDao.queryAllPaper();
        }
    
    }

*  在dao包中新建**接口** PaperDao.java

package com.dao;
    
    import com.pojo.Paper;
    
    import java.util.List;
    
    public interface PaperDao {
        int addPaper(Paper paper);
    
        int deletePaperById(long id);
    
        int updatePaper(Paper paper);
    
        Paper queryById(long id);
    
        List<Paper> queryAllPaper();
    
    
    }

*  在controller包中新建 PaperController.java

package com.controller;
    
    import com.pojo.Paper;
    import com.service.PaperService;
    
    import java.util.List;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    @Controller
    @RequestMapping("/paper")
    public class PaperController {
        @Autowired
        private PaperService paperService;
    
        @RequestMapping("/allPaper")
        public String list(Model model) {
            List<Paper> list = paperService.queryAllPaper();
            model.addAttribute("list", list);
            return "allPaper";
        }
    
        @RequestMapping("toAddPaper")
        public String toAddPaper() {
            return "addPaper";
        }
    
        @RequestMapping("/addPaper")
        public String addPaper(Paper paper) {
            paperService.addPaper(paper);
            return "redirect:/paper/allPaper";
        }
    
        @RequestMapping("/del/{paperId}")
        public String deletePaper(@PathVariable("paperId") Long id) {
            paperService.deletePaperById(id);
            return "redirect:/paper/allPaper";
        }
    
        @RequestMapping("toUpdatePaper")
        public String toUpdatePaper(Model model, Long id) {
            model.addAttribute("paper", paperService.queryById(id));
            return "updatePaper";
        }
    
        @RequestMapping("/updatePaper")
        public String updatePaper(Model model, Paper paper) {
            paperService.updatePaper(paper);
            paper = paperService.queryById(paper.getPaperId());
            model.addAttribute("paper", paper);
            return "redirect:/paper/allPaper";
        }
    }

*  在resource/mapper包下新建 PaperMapper.xml（mybatis框架mapper代理开发配置文件）

<?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.PaperDao">
        <resultMap type="Paper" id="paperResultMap" >
            <id property="paperId" column="paper_id"/>
            <result property="paperName" column="name"/>
            <result property="paperNum" column="number"/>
            <result property="paperDetail" column="detail"/>
        </resultMap>
        <insert id="addPaper" parameterType="Paper">
            INSERT INTO paper(paper_id,name,number,detail) VALUE (#{paperId},#{paperName}, #{paperNum}, #{paperDetail})
        </insert>
    
        <delete id="deletePaperById" parameterType="long">
            DELETE FROM paper WHERE paper_id=#{paperID}
        </delete>
    
        <update id="updatePaper" parameterType="Paper">
            UPDATE paper
            SET NAME = #{paperName},NUMBER = #{paperNum},detail = #{paperDetail}
            WHERE  paper_id = #{paperId}
        </update>
    
        <select id="queryById" resultType="Paper" parameterType="long">
            SELECT paper_id,name,number,detail
            FROM paper
            WHERE paper_id=#{paperId}
        </select>
        <select id="queryAllPaper" resultMap="paperResultMap">
            SELECT paper_id,name,number,detail
            FROM paper
        </select>
    
    </mapper>

*  在resource/spring包下分别新建配置文件：spring-dao.xml , spring-mvc.xml , spring-service.xml

![这里写图片描述][70 14]

spring-dao.xml：（spring-mybatis整合配置文件）

<?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"
           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">
        
        
        <context:property-placeholder location="classpath:jdbc.properties"/>
    
        
        <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="10"/>
            
            <property name="autoCommitOnClose" value="false"/>
            
            <property name="checkoutTimeout" value="10000"/>
            
            <property name="acquireRetryAttempts" value="2"/>
        </bean>
    
        
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            
            <property name="dataSource" ref="dataSource"/>
            
            <property name="configLocation" value="classpath:mybatis-config.xml"/>
            
            <property name="typeAliasesPackage" value="com.pojo"/>
            
            <property name="mapperLocations" value="classpath:mapper/*.xml"/>
        </bean>
    
        
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
            
            <property name="basePackage" value="com.dao"/>
        </bean>
    </beans>

spring-mvc.xml：（spring mvc配置文件）

spring-service.xml

*  在jdbc.properties文件中配置mysql数据库（**这里的数据库名、表名，用户名，密码一定要记得修改！！！**）。

jdbc.driver=com.mysql.jdbc.Driver
    jdbc.url=jdbc:mysql://127.0.0.1:3306/papersystem?useUnicode=true&characterEncoding=utf8
    jdbc.username=root
    jdbc.password=12345678

*  在log4j.properties文件中配置日志设定

log4j.rootLogger=ERROR, stdout
    log4j.appender.stdout=org.apache.log4j.ConsoleAppender
    log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
    log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

*  在mybatis-config.xml文件中配置mybtis框架

<?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>
        
        <settings>
            
            <setting name="useGeneratedKeys" value="true" />
    
            
            <setting name="useColumnLabel" value="true" />
    
            
            <setting name="mapUnderscoreToCamelCase" value="true" />
        </settings>
    </configuration>

*  配置web.xml文件

<!DOCTYPE web-app PUBLIC
                    "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
                    "http://java.sun.com/dtd/web-app_2_3.dtd" >
    
    <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_3_1.xsd"
             version="3.1" metadata-complete="true">
    <display-name>Archetype Created Web Application</display-name>
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/spring-*.xml</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        
        <url-pattern>/</url-pattern>
    </servlet-mapping>
        <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>
        </filter>
    
        <filter-mapping>
            <filter-name>encodingFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    </web-app>

*  修改index.jsp文件

index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
             pageEncoding="UTF-8" %>
    <%
        pageContext.setAttribute("path", request.getContextPath());
    %>
    <!DOCTYPE HTML>
    <html>
    <head>
        <title>首页</title>
        <style type="text/css">
            a {
                text-decoration: none;
                color: black;
                font-size: 18px;
            }
    
            h3 {
                width: 180px;
                height: 38px;
                margin: 100px auto;
                text-align: center;
                line-height: 38px;
                background: deepskyblue;
                border-radius: 4px;
            }
        </style>
    </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>
    <br><br>
    <h3>
        <a href="${path }/paper/allPaper">点击进入管理页面</a>
    </h3>
    </body>
    </html>

*  在WEB-INF/jsp包下分别新建addPaper,jsp , appPaper.jsp , updatePaper.jsp

allPaper.jsp：所有论文显示界面

<%--
      Created by IntelliJ IDEA.
      User: lenovo
      Date: 2018/4/6
      Time: 16:57
      To change this template use File | Settings | File Templates.
    --%>
    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <% String appPath = request.getContextPath(); %>
    <html>
    <head>
        <title>Paper列表</title>
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        
        <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>论文列表 —— 显示所有论文</small>
                    </h1>
                </div>
            </div>
        </div>
        <div class="row">
            <div class="col-md-4 column">
                <a class="btn btn-primary" href="${path}/paper/toAddPaper">新增</a>
            </div>
        </div>
        <div class="row clearfix">
            <div class="col-md-12 column">
                <table class="table table-hover table-striped">
                    <thead>
                    <tr>
                        <th>论文编号</th>
                        <th>论文名字</th>
                        <th>论文数量</th>
                        <th>论文详情</th>
                        <th>操作</th>
                    </tr>
                    </thead>
                    <tbody>
                    <c:forEach var="paper" items="${requestScope.get('list')}" varStatus="status">
                        <tr>
                            <td>${paper.paperId}</td>
                            <td>${paper.paperName}</td>
                            <td>${paper.paperNum}</td>
                            <td>${paper.paperDetail}</td>
                            <td>
                                <a href="${path}/paper/toUpdatePaper?id=${paper.paperId}">更改</a> |
                                <a href="<%=appPath%>/paper/del/${paper.paperId}">删除</a>
                            </td>
                        </tr>
                    </c:forEach>
                    </tbody>
                </table>
            </div>
        </div>
    </div>

addPaper,jsp：论文添加页面

<%--
      Created by IntelliJ IDEA.
      User: lenovo
      Date: 2018/4/7
      Time: 16:45
      To change this template use File | Settings | File Templates.
    --%>
    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <%
        String path = request.getContextPath();
        String basePath = request.getScheme() + "://"
                + request.getServerName() + ":" + request.getServerPort()
                + path + "/";
    %>
    <html>
    <head>
        <title>新增论文</title>
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        
        <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>新增论文</small>
                    </h1>
                </div>
            </div>
        </div>
        <form action="" name="userForm">
            论文名称：<input type="text" name="paperName"><br><br><br>
            论文数量：<input type="text" name="paperNum"><br><br><br>
            论文详情：<input type="text" name="paperDetail"><br><br><br>
            <input type="button" value="添加" onclick="addPaper()">
        </form>
    
        <script type="text/javascript">
            function addPaper() {
                var form = document.forms[0];
                form.action = "<%=basePath %>paper/addPaper";
                form.method = "post";
                form.submit();
            }
        </script>
    </div>

updatePaper.jsp：论文更改界面

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <%
        String path = request.getContextPath();
        String basePath = request.getScheme() + "://"
                + request.getServerName() + ":" + request.getServerPort()
                + path + "/";
    %>
    <html>
    <head>
        <title>修改论文</title>
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        
        <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>修改论文</small>
                    </h1>
                </div>
            </div>
        </div>
    
        <form action="" name="userForm">
            <input type="hidden" name="paperId" value="${paper.paperId}"/>
            论文名称：<input type="text" name="paperName" value="${paper.paperName}"/>
            论文数量：<input type="text" name="paperNum" value="${paper.paperNum}"/>
            论文详情：<input type="text" name="paperDetail" value="${paper.paperDetail }"/>
            <input type="button" value="提交" onclick="updatePaper()"/>
        </form>
        <script type="text/javascript">
            function updatePaper() {
                var form = document.forms[0];
                form.action = "<%=basePath %>paper/updatePaper";
                form.method = "post";
                form.submit();
            }
        </script>
    </div>

**4. 利用tomcat进行项目部署**

*  下载 安装 tomcat：[tomcat 9 下载地址][tomcat 9]
 *  IDEA配置tomcat：   
    点击上方的 Run 选项，选择Edit Configuration

![这里写图片描述][70 15]

选择default -> tomcat -> local 选择下载安装到本地的tomcat服务器的地址

![这里写图片描述][70 16]

切换到Deployment选项页 点击 + 号选择 Arctifact ，

![这里写图片描述][70 17]  
添加 项目名:war exploded 打包   
![这里写图片描述][70 18]  
最后在Application context 中选择 空白 那一项，点击 Apply 应用。   
![这里写图片描述][70 19]

*  最后切换到index.jsp界面，右键运行项目

![这里写图片描述][70 20]

**5. 运行界面**

![这里写图片描述][70 21]

论文列表界面：   
![这里写图片描述][70 22]  
新增论文界面：   
![这里写图片描述][70 23]  
论文修改界面：   
![这里写图片描述][70 24]

至此，利用IDEA+Maven+SSM框架实现的简单的增、删、改、查功能已经构建完毕！

[70]: /images/20220518/790399e3656044cc91690fdbcbf4c12c.png
[70 1]: /images/20220518/4d050cfc2df347108aa8101fef137b8c.png
[70 2]: /images/20220518/853eee7812ea47edb0686aab319e9b2e.png
[70 3]: /images/20220518/fe8a64b5ce474cd58adac0669e6354de.png
[70 4]: /images/20220518/39b42890886b4b158689bd9569db930a.png
[70 5]: /images/20220518/e96555e62eba4aeb9c8b4e90f72fd5ad.png
[70 6]: /images/20220518/bc85d4cfc8414d63aefc6b789232096c.png
[70 7]: /images/20220518/ca1725b289ea4b44afbeb023b7d45625.png
[70 8]: /images/20220518/00bcfe3a899443e9a50106f66be25bf3.png
[70 9]: /images/20220518/e40b8d812f544f2eb6bba5dc29e961f6.png
[70 10]: /images/20220518/a157c11fe6d844fbbaa712bdf414fa52.png
[70 11]: /images/20220518/c4c101fe13ba472fb184bbcf24ca462e.png
[70 12]: /images/20220518/844c18bc211d4f459fe70e5d0d27fdc3.png
[70 13]: /images/20220518/6c9521f5eaf64c4f93e95952d975570d.png
[70 14]: /images/20220518/2495a72bfd6b4c0797cfedec6ec87243.png
[tomcat 9]: https://tomcat.apache.org/download-90.cgi
[70 15]: /images/20220518/089189df0c9848f987cc23beacd472a0.png
[70 16]: /images/20220518/dba9d15a8ab64868aa0417e36c663d56.png
[70 17]: /images/20220518/1acd21f53ea9476d86cb154e884d8fad.png
[70 18]: /images/20220518/291f0bcd098640f3a8ef09ea1e2d4b93.png
[70 19]: /images/20220518/fc5b604c2f784647901025b9a457b08b.png
[70 20]: /images/20220518/493bc7283b754a92a80628728b772635.png
[70 21]: /images/20220518/88f2377910b64036bebbe9f9bd9eb7d7.png
[70 22]: /images/20220518/557201a02971476681ca5329957a78b6.png
[70 23]: /images/20220518/ff9d727cfe0d4c6797f88f0aaebd67f8.png
[70 24]: /images/20220518/cb9a0149b5bc46ac8ea416d813083f96.png