Spring-MVC-项目实战笔记

目的

为了记录一些没必要反复去写的配置而存在
从零构建项目

技术栈

Spring
SpringMVC
Mybatis
MySql
Jsp
Bootstrap
Aop
Maven
Intellij IDEA

….

SSM架构原理

需求

制作一个具有增删该查的初级表单功能

数据库

CREATE DATABASE `ssmbuild`;

USE `ssmbuild`;

CREATE TABLE `books`
(
    `bookID`     INT(10)      NOT NULL AUTO_INCREMENT COMMENT '书id',
    `bookName`   VARCHAR(100) NOT NULL COMMENT '书名',
    `bookCounts` INT(11)      NOT NULL COMMENT '数量',
    `detail`     VARCHAR(200) NOT NULL COMMENT '描述',
    KEY `bookID` (`bookID`)
) ENGINE = INNODB
  DEFAULT CHARSET = utf8;

INSERT INTO ssmbuild.books (bookID, bookName, bookCounts, detail)
VALUES (1, 'Java', 111, '从入门到放弃');
INSERT INTO ssmbuild.books (bookID, bookName, bookCounts, detail)
VALUES (2, 'MySQL', 10, '从删库到跑路');
INSERT INTO ssmbuild.books (bookID, bookName, bookCounts, detail)
VALUES (3, 'Linux', 5, '从进门到进牢');

新建项目

选择Maven直接新建

改好路径，项目名称，artifactId

为项目新增Web框架

新建如下标红包与文件夹

现在你已经有了一个空项目了，接下来开始配置它

Maven

依赖

引入各技术栈的依赖

<dependencies>
    <!-- springframework -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>5.2.12.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.2.12.RELEASE</version>
    </dependency>
    <!--Aop-->
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjweaver</artifactId>
        <version>1.8.13</version>
    </dependency>
    <!-- mybatis -->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.5.7</version>
    </dependency>
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>2.0.2</version>
    </dependency>
    <!-- mysql -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.47</version>
    </dependency>
    <!-- jdbc -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>5.2.12.RELEASE</version>
    </dependency>
    <!-- 数据连接池 -->
    <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.2</version>
    </dependency>
    <!-- servlet -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>2.5</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
    <!-- Jsp -->
    <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>jsp-api</artifactId>
        <version>2.2</version>
    </dependency>

    <!-- junit -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
</dependencies>

Maven资源处理

若无此配置，mybatis的xml文件无法正常打包

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

阿里镜像

增速jar包加载

<repositories>
    <repository>
        <id>public</id>
        <name>aliyun nexus</name>
        <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
        <releases>
            <enabled>true</enabled>
        </releases>
    </repository>
</repositories>

<pluginRepositories>
    <pluginRepository>
        <id>public</id>
        <name>aliyun nexus</name>
        <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
        <releases>
            <enabled>true</enabled>
        </releases>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </pluginRepository>
</pluginRepositories>

POJO/数据实体类

对应表books
Books.java

package com.wx.pojo;

public class Books {

    private int bookId;
    private String bookName;
    private int bookCounts;
    private String detail;

    public Books() { }
    
    public Books(int bookId, String bookName, int bookCounts, String detail) {
        this.bookId = bookId;
        this.bookName = bookName;
        this.bookCounts = bookCounts;
        this.detail = detail;
    }

    public int getBookId() { return bookId; }
    public void setBookId(int bookId) { this.bookId = bookId; }
    public String getBookName() {return bookName;}
    public void setBookName(String bookName) {this.bookName = bookName; }
    public int getBookCounts() { return bookCounts; }
    public void setBookCounts(int bookCounts) { this.bookCounts = bookCounts; }
    public String getDetail() { return detail; }
    public void setDetail(String detail) { this.detail = detail; }

    @Override
    public String toString() {
        return "Books{" + "bookId=" + bookId + ", bookName='" + bookName + '\'' +
                ", bookCounts=" + bookCounts + ", detail='" + detail + '\'' + '}';
    }
}

Dao / MyBatis

数据源配置

此步骤为 MyBatis 链接数据库并将MyBatis与 Spring整合

数据源信息配置

database.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSS=true&useUnicode=true&characterEncodeing=UTF-8&useSSL=false
jdbc.username=root
jdbc.password=123456

数据源Spring注入

spring-dao.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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd">

    <context:property-placeholder location="classpath:database.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="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>

    <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.wx.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sessionFactory"/>
    </bean>
</beans>

Dao层实现

数据库操作接口

BookMapper.java

package com.wx.dao;
import java.util.List;
import com.wx.pojo.Books;
import org.apache.ibatis.annotations.Param;

public interface BookMapper {
    int addBook(Books books);//增加一本书
    int deleteBook(@Param("bookID") int id);//删除一本书
    int updateBook(Books books);//更新一本书
    Books queryBookById(@Param("bookID") int id);//根据Id查询某书
    List<Books> queryAllBook();//查询所有记录
    Books queryBookByName(String name);//根据书名查询某书
}

MyBatis-Mapper

BookMapper.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.wx.dao.BookMapper">
    <insert id="addBook" parameterType="Books">
        insert into ssmbuild.books (bookName, bookCounts, detail)
        VALUES (#{bookName}, #{bookCounts}, #{detail});
    </insert>
    <update id="updateBook">
        update ssmbuild.books
        set bookName  = #{bookName},
            bookCounts= #{bookCounts},
            detail    = #{detail}
        where bookId = #{bookId};
    </update>
    <delete id="deleteBook" parameterType="int">
        delete
        from ssmbuild.books
        where bookID = #{bookID};
    </delete>
    <select id="queryBookById" resultType="com.wx.pojo.Books">
        select *
        from ssmbuild.books
        where bookID = #{bookID};
    </select>
    <select id="queryAllBook" resultType="com.wx.pojo.Books">
        select *
        from ssmbuild.books;
    </select>
    <select id="queryBookByName" resultType="com.wx.pojo.Books">
        select *
        from ssmbuild.books
        where bookName = #{bookName};
    </select>
</mapper>

MyBatis 配置

MyBatis的必要配置
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>
    <!--开启日志-->
    <settings>
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    </settings>
    <!-- Dao包下的实体类均可以使用别名 -->
    <typeAliases>
        <package name="com.wx.pojo"/>
    </typeAliases>
    <!--注册BookMapper-->
    <mappers>
        <mapper class="com.wx.dao.BookMapper"/>
    </mappers>
</configuration>

Service

接口

BookService.java

package com.wx.service;

import java.util.List;
import com.wx.pojo.Books;

public interface BookService {

    int addBook(Books books);
    int deleteBook(int id);
    int updateBook(Books books);
    Books queryBookById(int id);
    List<Books> queryAllBook();
    Books queryBookByName(String name);
}

实现

BookServiceImpl.java

package com.wx.service;
import java.util.List;
import com.wx.dao.BookMapper;
import com.wx.pojo.Books;

public class BookServiceImpl implements BookService {

    private BookMapper bookMapper;
    public void setBookMapper(BookMapper bookMapper) {
        this.bookMapper = bookMapper;
    }

    public int addBook(Books books) {
        return bookMapper.addBook(books);
    }

    public int deleteBook(int id) {
        return bookMapper.deleteBook(id);
    }

    public int updateBook(Books books) {
        return bookMapper.updateBook(books);
    }

    public Books queryBookById(int id) {
        return bookMapper.queryBookById(id);
    }

    public List<Books> queryAllBook() {
        return bookMapper.queryAllBook();
    }

    public Books queryBookByName(String name) {
        return bookMapper.queryBookByName(name);
    }
}

service配置

因为业务层会有异常产生，故使用aop添加事物回滚操作
spring-service.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.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/aop
       https://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd">

    <context:component-scan base-package="com.wx.service"/>

    <bean id="bookServiceImpl" class="com.wx.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
    </bean>
    <!-- 声明式事务 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!-- Aop事务支持 -->
    <tx:advice id="interceptor" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="add" propagation="REQUIRED"/>
            <tx:method name="delete" propagation="REQUIRED"/>
            <tx:method name="update" propagation="REQUIRED"/>
            <tx:method name="query" propagation="REQUIRED"/>
            <tx:method name="*" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>
    <!-- Aop事务切入 -->
    <aop:config>
        <aop:pointcut id="daoPointCut" expression="execution(* com.wx.dao.*.*(..))"/>
        <aop:advisor advice-ref="interceptor" pointcut-ref="daoPointCut"/>
    </aop:config>

</beans>

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: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/context
        https://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
        https://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!--引入数据源与 Service 配置-->
    <import resource="classpath:spring-dao.xml"/>
    <import resource="classpath:spring-service.xml"/>

    <!-- 注解驱动 -->
    <mvc:annotation-driven/>
    <!-- 静态资源过滤 -->
    <mvc:default-servlet-handler/>
    <mvc:resources mapping="/" location="/statics/"/>
    <!-- 扫描包 -->
    <context:component-scan base-package="com.wx.controller"/>
    <context:component-scan base-package="com.wx.service"/>

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

Web.xml

<?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">
    <!-- DispatcherServlet -->
    <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:applicationContext.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!--乱码过滤器-->
    <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>
    <!-- 引入静态文件 -->
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.css</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.png</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.js</url-pattern>
    </servlet-mapping>
</web-app>

Controller

BookController.java

package com.wx.controller;

import java.util.List;
import java.util.ArrayList;
import com.wx.pojo.Books;
import com.wx.service.BookService;
import org.springframework.ui.Model;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;


@Controller
@RequestMapping("/book")
public class BookController {

    @Autowired
    @Qualifier("bookServiceImpl")
    private BookService bookService;

    @RequestMapping("/allBook")
    public String list(Model model) {
        List<Books> books = bookService.queryAllBook();
        model.addAttribute("list", books);
        return "allBook";
    }

    @RequestMapping("/toAddBookPage")
    public String toAddBookPage() {
        return "addBook";
    }

    @RequestMapping("/addBook")
    public String addBook(Books books) {
        bookService.addBook(books);
        return "redirect:/book/allBook";
    }

    @RequestMapping("/toUpdateBookPage")
    public String toUpdateBookPage(int id,Model model) {
        model.addAttribute("resultBooks",bookService.queryBookById(id));
        return "updateBook";
    }

    @RequestMapping("/updateBook")
    public String updateBook(Books books) {
        System.out.println("============"+books);
        bookService.updateBook(books);
        return "redirect:/book/allBook";
    }


    @RequestMapping("/deleteBook")
    public String deleteBook(int id) {
        bookService.deleteBook(id);
        return "redirect:/book/allBook";
    }


    @RequestMapping("/queryBook")
    public String queryBook(String queryBookName,Model model) {
        Books books = bookService.queryBookByName(queryBookName);
        if (null == books){
            return "redirect:/book/allBook";
        }
        List<Books> list = new ArrayList<Books>();
        list.add(books);
        model.addAttribute("list",list);
        return "allBook";
    }
    
}

View

index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>主页</title>
    <style>
        a {
            text-decoration: none;
            color: black;
            font-size: 18px;
        }

        h3 {
            width: 180px;
            height: 38px;
            margin: 100px auto;
            text-align: center;
            line-height: 38px;
            background: bisque;
            border-radius: 5px;
        }
    </style>
</head>
<body>
<h3>
    <a href="${pageContext.request.contextPath}/book/allBook">书籍展示</a>
</h3>
</body>
</html>

allBook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>allBook</title>
    <link type="text/css" rel="stylesheet" href="/statics/css/bootstrap.css">
</head>
<body>
<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small><a href="${pageContext.request.contextPath}/index.jsp">书籍列表</a>---显示所有书籍</small>
                </h1>
            </div>
        </div>
        <div class="row clearfix">
            <div class="col-md-4 column">
                <a class="btn btn-primary" href="/book/toAddBookPage">新增书籍</a>
                <a class="btn btn-primary" href="/book/allBook">显示书籍</a>
            </div>
            <div class="col-md-4 column"></div>
            <div class="col-md-4 column">
                <form action="${pageContext.request.contextPath}/book/queryBook" method="post" style="float:right">
                    <input type="text" name="queryBookName" placeholder="请输入">
                    <input type="submit" value="查询" class="btn btn-primary">
                </form>
            </div>
        </div>
        <div class="col-md-12 column">
            <div class="page-header">
                <table class="table table-hover table-striped">
                    <thead>
                    <tr>
                        <th>编号</th>
                        <th>名称</th>
                        <th>数量</th>
                        <th>详情</th>
                        <th>操作</th>
                    </tr>
                    </thead>
                    <tbody>
                    <c:forEach var="book" items="${list}">
                        <tr>
                            <td>${book.bookId}</td>
                            <td>${book.bookName}</td>
                            <td>${book.bookCounts}</td>
                            <td>${book.detail}</td>
                            <td>
                                <a href="${pageContext.request.contextPath}/book/toUpdateBookPage?id=${book.bookId}">修改</a>|&nbsp;
                                <a href="${pageContext.request.contextPath}/book/deleteBook?id=${book.bookId}">删除</a>
                            </td>
                        </tr>
                    </c:forEach>
                    </tbody>
                </table>
            </div>
        </div>
    </div>
</div>
<script src="/statics/css/bootstrap-theme.min.css"></script>
<script src="/statics/js/jquery.min.js"></script>
<script src="/statics/js/bootstrap.min.js"></script>
</body>
</html>

addBook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>allBook</title>
    <link type="text/css" rel="stylesheet" href="/statics/css/bootstrap.css">
</head>
<body>
<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>书籍列表---新增书籍</small>
                </h1>
            </div>
        </div>
        <form action="${pageContext.request.contextPath}/book/addBook" method="post">
            <div class="form-group">
                <label for="bookName">书籍名称</label>
                <input type="text" class="form-control" id="bookName" name="bookName" placeholder="bookName">
            </div>
            <div class="form-group">
                <label for="bookCounts">书籍数量</label>
                <input type="text" class="form-control" id="bookCounts" name="bookCounts" placeholder="bookCounts">
            </div>
            <div class="form-group">
                <label for="detail">书籍描述</label>
                <input type="text" class="form-control" id="detail" name="detail" placeholder="detail">
            </div>
            <button type="submit" class="btn btn-default">Submit</button>
        </form>
    </div>
</div>
<script src="/statics/css/bootstrap-theme.min.css"></script>
<script src="/statics/js/jquery.min.js"></script>
<script src="/statics/js/bootstrap.min.js"></script>
</body>
</html>

updateBook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>allBook</title>
    <link type="text/css" rel="stylesheet" href="/statics/css/bootstrap.css">
</head>
<body>
<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>书籍列表---显示所有书籍</small>
                </h1>
            </div>
        </div>
        <form action="${pageContext.request.contextPath}/book/updateBook" method="post">
            <input type="hidden" name="bookId" value="${resultBooks.bookId}">
            <div class="form-group">
                <label for="bookName">书籍名称</label>
                <input type="text" class="form-control" id="bookName" name="bookName" value="${resultBooks.bookName}">
            </div>
            <div class="form-group">
                <label for="bookCounts">书籍数量</label>
                <input type="text" class="form-control" id="bookCounts" name="bookCounts" value="${resultBooks.bookCounts}">
            </div>
            <div class="form-group">
                <label for="detail">书籍描述</label>
                <input type="text" class="form-control" id="detail" name="detail" value="${resultBooks.detail}">
            </div>
            <button type="submit" class="btn btn-default">Submit</button>
        </form>
    </div>
</div>
<script src="/statics/css/bootstrap-theme.min.css"></script>
<script src="/statics/js/jquery.min.js"></script>
<script src="/statics/js/bootstrap.min.js"></script>
</body>
</html>

配置TomCat

配置TomCat，构件

配置TomCat，删除上下文

配置TomCat，链接删除上下文

war导入jar

打开项目结构

创建lib目录

lilb引入库文件

全选库文件

lilb引入库文件后的结果

运行

点击运行

运行结果

感谢查阅

洛玖随笔

【Spring】Spring-MVC-项目实战

目的

技术栈