ssm整合(入门)
框架
ssm
发布日期:   2020-04-27
阅读次数:  

SSM框架整合

回顾了下Spring,SpringMVC,MyBatis框架整合，完善了一个小案例，包括基本的增删改查功能。

环境要求

  • IDEA
  • MySQL
  • Tomcat
  • Maven
  • 需要熟练掌握MySQL数据库，Spring，JavaWeb及MyBatis知识，简单的前端知识；

数据库环境

创建一个存放书籍书籍的数据库表

CREATE DATABASE `ssmbuild`;

USE `ssmbuild`;

DROP TABLE IF EXISTS `books`;

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

基本环境搭建

  1. 新建一Maven项目！ ssmbuild ， 添加web的支持
  2. 导入相关的pom依赖！
  <dependencies>
        <!--Junit-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <!--数据库驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.19</version>
        </dependency>
        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>
        <!--Servlet - JSP -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <!--Mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.2</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.2</version>
        </dependency>
        <!--Spring-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.1.9.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.1.9.RELEASE</version>
        </dependency>
    <!-- lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.8</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>
  1. Maven资源过滤设置 
<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>
  1. 建立基本结构和配置框架

  • com.wen.pojo

  • com.wen.dao

  • com.wen.service

  • com.wen.controller

resource

  • applicationContext.xml

  • database.properties

  • mybatis-config.xml

  • spring-dao.xml

  • spring-mvc.xml

  • spring-service.xml

webapp

  • web.xml

  • 和一些资源文件

Mybatis层编写

  1. 数据库配置文件 database.properties

    jdbc.driver=com.mysql.jdbc.Driver
# 如果使用的是MySQL8.0+ ，增加一个时区的配置
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
jdbc.username=root
jdbc.password=root2019

  2. IDEA 关联数据库

    注意点

    • 如果关联的是mysql数据库就一定要看一下有没有mysql环境打开cmd直接输入mysql，如果
      提示的不是你的mysql版本就说明你没有配置，配置的时候就尽量加上自己的时区，好像说5点几的
      可以不用，但是mysql版本可以向下兼容的，多一步也没事

  3. 编写MyBatist的核心配置文件

    <?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>

    <!--控制台输出sql-->
    <settings>
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    </settings>

    <!--配置数据源  交给spring去做-->
    <typeAliases>
        <package name="com.wen.pojo"/>
    </typeAliases>

    <!--分页-->
    <plugins>
        <!-- com.github.pagehelper为PageInterceptor类所在包名 -->
        <plugin interceptor="com.github.pagehelper.PageInterceptor">
            <!-- 该参数默认为false -->
            <!-- 设置为true时，会将RowBounds第一个参数offset当成pageNum页码使用 -->
            <!-- 和startPage中的pageNum效果一样 -->
            <property name="offsetAsPageNum" value="true" />
            <!-- 该参数默认为false -->
            <!-- 设置为true时，使用RowBounds分页会进行count查询 -->
            <property name="rowBoundsWithCount" value="true" />
            <!-- 设置为true时，如果pageSize=0或者RowBounds.limit = 0就会查询出全部的结果 -->
            <!-- （相当于没有执行分页查询，但是返回结果仍然是Page类型） -->
            <property name="pageSizeZero" value="true" />
            <!-- 3.3.0版本可用 - 分页参数合理化，默认false禁用 -->
            <!-- 启用合理化时，如果pageNum<1会查询第一页，如果pageNum>pages会查询最后一页 -->
            <!-- 禁用合理化时，如果pageNum<1或pageNum>pages会返回空数据 -->
            <property name="reasonable" value="false" />
            <!-- 3.5.0版本可用 - 为了支持startPage(Object params)方法 -->
            <!-- 增加了一个`params`参数来配置参数映射，用于从Map或ServletRequest中取值 -->
            <!-- 可以配置pageNum,pageSize,count,pageSizeZero,reasonable,不配置映射的用默认值 -->
            <!-- 不理解该含义的前提下，不要随便复制该配置 -->
            <property name="params" value="pageNum=start;pageSize=limit;" />
            <!-- always总是返回PageInfo类型,check检查返回类型是否为PageInfo,none返回Page -->
            <property name="returnPageInfo" value="check" />
        </plugin>
    </plugins>
    <mappers>
        <mapper class="com.wen.dao.BookMapper"/>
    </mappers>

</configuration>

  4. 编写数据库对应的实体类com.wen.pojo.Books(使用lombok插件)

    package com.wen.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Books {
    private int bookId;
    private String bookName;
    private int bookCounts;
    private String detail;
}

  5. 编写Dao层的Mapper接口：BookMapper

    package com.wen.dao;

import com.wen.pojo.Books;

import java.util.List;

public interface BookMapper {
    //增加一本书
    int addBook(Books book);
    //删除一本书
    int deleteBookById( int id);
    //更新一本书
    int updateBook(Books book);
    //查询一本书
    Books queryBookById( int id);
    //查询所有的书（分页）
    int queryBookCount();

    //解决删除书籍，id没有连续的问题（需要放到插入前，不能放到删除以后）
    void deleteID();

    List<Books> queryAllBook();
    //查询书籍根据书名
    Books queryBookByName(String BookName);

    //模糊查询书籍（根据书名）
    List<Books> queryBookByHhName(String bookName);
}

  6. 编写接口对应的Mapper.xml文件：BookMapper.xml。需要导入MyBatis的包

    <?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.wen.dao.BookMapper">

    <insert id="addBook" parameterType="Books">
        insert into ssmbuild.books(bookName,bookCounts,detail)
        values (#{bookName},#{bookCounts},#{detail})
    </insert>

    <delete id="deleteBookById" parameterType="int">
        delete from ssmbuild.books where bookID = #{bookId}
    </delete>
    <delete id="deleteID">
        ALTER TABLE ssmbuild.books AUTO_INCREMENT = 1
    </delete>

    <update id="updateBook" parameterType="Books">
        update ssmbuild.books set bookName = #{bookName},bookCounts = #{bookCounts},detail=#{detail}
        where bookID = #{bookId}
    </update>

    <select id="queryBookById" resultType="Books">
        select * from ssmbuild.books where bookID = #{bookId}
    </select>

    <select id="queryBookCount"  resultType="int">
        select count(*) from ssmbuild.books
    </select>

    <select id="queryAllBook" resultType="com.wen.pojo.Books">
       select * from ssmbuild.books
    </select>

    <select id="queryBookByName"  resultType="Books">
        select * from ssmbuild.books where bookName=#{bookName}
    </select>

    <select id="queryBookByHhName"  resultType="Books">
        select * from ssmbuild.books
        <where>
            <if test="bookName != null and bookName != ''">
                bookName like concat('%',#{bookName},'%')
            </if>
        </where>
    </select>

    <select id="queryBookCountByName"  resultType="int">
        select count(*) from ssmbuild.books
         where bookName like "%"#{bookName}"%";
    </select>

</mapper>

  7. 编写Service层的接口和实现类：

    BookService接口：

    package com.wen.service;

import com.wen.pojo.Books;

import java.util.List;

public interface BookService {

    //增加一本书
    int addBook(Books book);
    //删除一本书
    int deleteBookById( int id);
    //更新一本书
    int updateBook(Books book);
    //查询一本书
    Books queryBookById( int id);
    //解决删除书籍，id没有连续的问题
    void deleteID();
    //查询所有的书
    List queryAllBook();
    //查询书籍（根据书名）
    Books queryBookByName(String BookName);

    //模糊查询书籍（根据书名）
    List<Books> queryBookByHhName(String bookName);
}

    BookServiceImpl实现类：

    package com.wen.service;

import com.wen.dao.BookMapper;
import com.wen.pojo.Books;

import java.util.List;
//业务层调dao层
public class BookServiceImpl implements BookService{
    //调用dao层的操作，设置一个set接口，方便Spring管理

    private BookMapper bookMapper;

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

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

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

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

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

    public void deleteID() {
    }

    @Override
    public List<Books> queryAllBook() {
        return bookMapper.queryAllBook();
    }
    @Override
    public Books queryBookByName(String BookName) {
        return bookMapper.queryBookByName(BookName);
    }
    public List<Books> queryBookByHhName(String bookName) {
        return bookMapper.queryBookByHhName(bookName);
    }
}

Spring层

  1. 配置Spring整合MyBatis，我们这里数据源使用c3p0连接池；

  2. 编写Spring整合Mybatis的相关的配置文件：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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="
   http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
   http://www.springframework.org/schema/aop
   http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
   http://www.springframework.org/schema/tx
   http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
   http://www.springframework.org/schema/context     
   http://www.springframework.org/schema/context/spring-context-3.0.xsd">
    <!--    关联数据库配置文件-->
    <context:property-placeholder location="classpath:database.properties"/>

    <!--    连接池
        dbcp
        c3p0
        druid
         hikari-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"></property>
        <property name="jdbcUrl" value="${jdbc.url}"></property>
        <property name="user" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
        <!-- c3p0连接池的私有属性 -->
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <!-- 关闭连接后不自动commit -->
        <property name="autoCommitOnClose" value="false"/>
        <!-- 获取连接超时时间 -->
        <property name="checkoutTimeout" value="10000"/>
        <!-- 当获取连接失败重试次数 -->
        <property name="acquireRetryAttempts" value="2"/>

    </bean>
    <!--    sqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 配置MyBaties全局配置文件:mybatis-config.xml -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>

    <!-- 4.配置扫描Dao接口包，动态实现Dao接口注入到spring容器中 -->
    <!--解释 ： https://www.cnblogs.com/jpfss/p/7799806.html-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 给出需要扫描Dao接口包 -->
        <property name="basePackage" value="com.wen.dao"/>
    </bean>
</beans>

  3. Spring整合service层 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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="
   http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
   http://www.springframework.org/schema/aop
   http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
   http://www.springframework.org/schema/tx
   http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context-3.0.xsd">
    <!--BookServiceImpl注入到IOC容器中-->
    <bean id="BookServiceImpl" class="com.wen.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
    </bean>
    <!-- 扫描service相关的bean -->
    <context:component-scan base-package="com.wen.service"/>
    <!-- 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource" />
    </bean>
</beans>

  4. Spring整合service层 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:aop="http://www.springframework.org/schema/aop"
        xmlns:tx="http://www.springframework.org/schema/tx"
        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-3.0.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
     <!-- 配置SpringMVC -->
     <!-- 1.开启SpringMVC注解驱动 -->
     <mvc:annotation-driven />
     <!-- 2.静态资源默认servlet配置-->
     <mvc:default-servlet-handler/>

     <!-- 3.配置jsp 显示ViewResolver视图解析器 -->
     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
         <property name="prefix" value="/WEB-INF/jsp/" />
         <property name="suffix" value=".jsp" />
     </bean>

     <!-- 4.扫描web相关的bean -->
     <context:component-scan base-package="com.wen.controller" />
 </beans>

SpringMVC层

  1. 项目添加框架支持Web，修改WEB-INF文件下web.xml文件

    <?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>DispatcherServlet</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>DispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <!--encodingFilter-->
  <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>

  <!--Session过期时间-->
  <session-config>
    <session-timeout>15</session-timeout>
  </session-config>
</web-app>

  1. Spring配置整合文件：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"
       xsi:schemaLocation="
   http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"
    <import resource="classpath:spring-dao.xml"></import>
    <import resource="classpath:spring-service.xml"></import>
    <import resource="classpath:spring-mvc.xml"></import>

</beans>

Conntroller 和 视图

  1. BookController 类编写 。 方法一：查询全部书籍

    package com.wen.controller;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.wen.pojo.Books;
import com.wen.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpServletRequest;
import java.util.List;

@Controller
@RequestMapping("/book")
public class BookController {
    //controller调service层
    @Autowired
    @Qualifier("BookServiceImpl")
    public BookService bookService;

    //查询全部的书籍，并且返回到一个书籍展示页面
    @RequestMapping("/allBook")
    public String list(@RequestParam(defaultValue="1",required=true)Integer pageNum, Model model, HttpServletRequest request){
        PageHelper.startPage(pageNum, 3);
        List<Books> list = bookService.queryAllBook();
        PageInfo<Books> page = new PageInfo<>(list);
        model.addAttribute("page",page);
        model.addAttribute("list",list);
        return "allBook";
    }

    //跳转到增加数据页面
    @RequestMapping("/toaddBook")
    public String toaddBook(){
        return "addBook";
    }
    //添加书籍操作
    @PostMapping("/addBook")
    public String addBook(Books books){
        bookService.addBook(books);
        return "redirect:/book/allBook";//重定向到@RequestMapping("/toaddBook")
    }
    //跳转到修改书籍页面
    @RequestMapping("/toUpdateBook")
    public String toUpdateBook(int id ,Model model){
        Books books = bookService.queryBookById(id);
        model.addAttribute("book",books);
        return "updateBook";
    }
    //修改书籍
    @PostMapping("updateBook")
    public String updateBook(Books book) {
        bookService.updateBook(book);
        return "redirect:/book/allBook";
    }
    //删除书籍
    @RequestMapping("deleteBook")
    public String deleteBook(int id){
        bookService.deleteBookById(id);
        return "redirect:/book/allBook";
    }
    /*//查询书籍
    @RequestMapping("/queryBook")
    public String queryBook(String queryBookName,Model model){
        Books books = bookService.queryBookByName(queryBookName);
        //System.err.println("books====>"+books);
        List<Books> list = new ArrayList<>();
        //System.err.println(queryBookName);//queryBookName名字需要和前台对应，不然一直显示为空
        list.add(books);
        model.addAttribute("list",list);
        return "allBook";
    }*/
    //模糊查询书籍
    @RequestMapping("/queryBook")
    public String queryBook(String queryBookName,Model model){
        List<Books> books = bookService.queryBookByHhName(queryBookName);//模糊查询有可能返回多条数据用list接收
        //System.err.println("books====>"+books);
        System.err.println(queryBookName);//queryBookName名字需要和前台对应，不然一直显示为空
        model.addAttribute("list",books);
        return "allBook";
    }
}

  2. 编写首页：index.jsp 

    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="icon" href="https://www.naqub.cn/wp-content/uploads/2018/12/cropped-ico-32x32.png" sizes="32x32">
    <title>login</title>
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/index.css">
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/prism.css">
    <script src="http://www.jq22.com/jquery/jquery-1.10.2.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/quietflow.min.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/index.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/prism.js"></script>
    <link href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/logincss.css" rel="stylesheet">
    <style type="text/css">
        a {
            text-decoration: none;
            color: black;
            font-size: 18px;
        }
        h3 {
            width: 180px;
            height: 38px;
            margin: 190px auto;
            text-align: center;
            line-height: 38px;
            background: deepskyblue;
            border-radius: 4px;
        }
    </style>
</head>
<body>
<h3>
    <a href="${pageContext.request.contextPath}/book/allBook">进入书籍页面</a>
</h3>

<h3>
    <a href="">登陆</a>
</h3>
</body>
</html>

  3. 编写书籍列表页：allBook.jsp

    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
    <title>书籍列表</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="icon" href="https://www.naqub.cn/wp-content/uploads/2018/12/cropped-ico-32x32.png" sizes="32x32">
    <title>login</title>
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/index.css">
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/prism.css">
    <script src="http://www.jq22.com/jquery/jquery-1.10.2.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/quietflow.min.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/index.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/prism.js"></script>
    <link href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/logincss.css" rel="stylesheet">
    <style>
            .box{
                width: 50%;
                margin: 0px auto;
                border-radius: 10px;
            }
            .img-box{
                width: 100%;
                position:relative;
                z-index:1;
                border-radius: 10px;
            }
            .img-box img{
                position:absolute;
                top:0;
                bottom:0;
                left:0;
                right:0;
                border-radius: 10px;
                width:100%;
                margin:auto;
                z-index: -1;
                *zoom:1;
            }
            .img-box:before {
                content: "";
                display: inline-block;
                padding-bottom: 55%;
                width: 0.1px;    /*必须要有数值，否则无法把高度撑起来*/
                vertical-align: middle;
            }
    </style>
</head>

<body ondragstart="return false;"><%--禁止鼠标拖动产生新的页面--%>

<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>
    </div>

    <div class="row">
        <div class="col-md-9 column">
            <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toaddBook">新增</a>
            <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">显示所有书籍</a>
            <span style="color: red">${error}</span>
        </div>
        <div class="col-md-3 column">
            <form action="${pageContext.request.contextPath}/book/queryBook" method="" >
                <div class="input-group">
                    <input type="text" name="queryBookName" class="form-control" placeholder="请输入要查找的书籍">
                    <span class="input-group-btn">
                        <button class="btn btn-primary" type="submit">查询</button>
                        </span>
                </div><!-- /input-group -->
            </form>
        </div>
    </div>

    <div class="row clearfix">
        <div class="col-md-12 column">
            <table class="table table-hover table-striped">
                <thead>
                <tr>
                    <th>书籍编号</th>
                    <th>书籍名字</th>
                    <th>书籍数量</th>
                    <th>书籍详情</th>
                    <th>操作</th>
                </tr>
                </thead>
                <tbody>
                <c:if test="${not empty list}">
                    <c:forEach var="book" items="${list}">
                        <tr>
                            <td>${book.bookId}</td>
                            <td>${book.bookName}</td>
                            <td>${book.bookCounts}</td>
                            <td>${book.detail}</td>
                            <td>
                                <a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.bookId}">更改</a> |
                                <a href="${pageContext.request.contextPath}/book/deleteBook?id=${book.bookId}">删除</a>
                            </td>
                        </tr>
                    </c:forEach>
                </c:if>
                </tbody>
            </table>
            <c:if test="${empty list}">
            <div class="box">
                <div class="img-box">
                    <img src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/medias/dwrgIMG/8.jpg"/>
                        <span style="margin-left: 260px">一本都没有了</span>
                </div>
            </div>
            </c:if>
            <div style="margin:auto 0">
                <div style="position: relative;top: 50px;left: 500px">
                    <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook?pageNum=${page.navigateFirstPage}">首页</a>
                    <c:if test="${page.pageNum>1}">
                        <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook?pageNum=${page.prePage}">上一页</a>
                    </c:if>
                    <c:if test="${page.pageNum<page.nextPage}">
                        <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook?pageNum=${page.nextPage}">下一页</a>
                        <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook?pageNum=${page.navigateLastPage}">尾页</a>
                    </c:if>
                    <c:if test="${page.pageNum!=0&&page.pageNum==2}">
                        <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook?pageNum=${page.navigateLastPage}">尾页</a>
                    </c:if>
                </div>
            </div>
        </div>
    </div>
</div>

  4. 编写添加书籍页面：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>新增书籍</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
    <title>书籍列表</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="icon" href="https://www.naqub.cn/wp-content/uploads/2018/12/cropped-ico-32x32.png" sizes="32x32">
    <title>login</title>
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/index.css">
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/prism.css">
    <script src="http://www.jq22.com/jquery/jquery-1.10.2.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/quietflow.min.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/index.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/prism.js"></script>
    <link href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/logincss.css" rel="stylesheet">
</head>
<body>
<div class="container">

    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>新增书籍</small>
                </h1>
            </div>
        </div>
    </div>

    <form action="${pageContext.request.contextPath}/book/addBook" method="post" style="width: 50%;margin: 80px auto;">
        <div class="form-group">
            <label for="bookName">书籍名称：</label>
            <input type="text" class="form-control" id="bookName" name="bookName" placeholder="书籍名称">
        </div>
        <div class="form-group">
            <label for="bookCounts"> 书籍数量：</label>
            <input type="text" class="form-control" id="bookCounts" name="bookCounts" placeholder="书籍数量">
        </div>
        <div class="form-group">
            <label for="detail"> 书籍详情：</label>
            <input type="text" class="form-control" id="detail" name="detail" placeholder="书籍详情">
        </div>
        <input class="btn btn-primary" type="submit" value="提交"/>
    </form>
</div>
</body>
</html>

  5. 编写修改书籍页面：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>修改书籍</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
    <title>书籍列表</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="icon" href="https://www.naqub.cn/wp-content/uploads/2018/12/cropped-ico-32x32.png" sizes="32x32">
    <title>login</title>
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/index.css">
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/prism.css">
    <script src="http://www.jq22.com/jquery/jquery-1.10.2.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/quietflow.min.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/index.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/prism.js"></script>
    <link href="https://cdn.jsdelivr.net/gh/come-myLife/come-myLife.github.io/js/myLoginjs/logincss.css" rel="stylesheet">
</head>
<body>
<div class="container">

    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>修改书籍</small>
                </h1>
            </div>
        </div>
    </div>

    <form action="${pageContext.request.contextPath}/book/updateBook" method="post" style="width: 50%;margin: 80px auto;">
        <%--前端传递隐藏域--%>
        <%--修改的时候是根据id去修改--%>
        <input type="hidden" name="bookId" value="${book.bookId}"/>
        <div class="form-group">
            <label for="bookName">书籍名称：</label>
            <input type="text" class="form-control" id="bookName" name="bookName" value="${book.bookName}" placeholder="书籍名称">
        </div>
        <div class="form-group">
            <label for="bookCounts"> 书籍数量：</label>
            <input type="text" class="form-control" id="bookCounts" name="bookCounts" value="${book.bookCounts}"
                   placeholder="书籍数量">
        </div>
        <div class="form-group">
            <label for="detail"> 书籍详情：</label>
            <input type="text" class="form-control" id="detail" name="detail" value="${book.detail}" placeholder="书籍详情">
        </div>
        <input class="btn btn-primary" type="submit" value="提交"/>
    </form>
</div>
</body>
</html>

    参考资料

    狂神说Java
    后期自己完善了分页和模糊查询功能。
    源码地址

   转载规则


《ssm整合(入门)》 由 我到哪里都是猪 采用 知识共享署名 4.0 国际许可协议 进行许可。
 上一篇
vue vue
学习基础语法可以用HBuilder快捷，学习到了路由什么的话就用idea（修改规范为ES6）或者使用其他的软件 vue的一些指令 v-show (展示) v-if (判断) v-else-if (判断) v-else (判断) v-for
2020-05-01 vue
vue
下一篇 
前后台数据交互 前后台数据交互
JSON和Ajax的使用
2020-04-18 JSON
JSON+Ajax
  目录