ssm整合（实现一个小项目的增删改查）

编程语言 2023-08-12 20:05:01 阅读次数: 0

目录

简介

系统构架图 

数据库创建

整合框架流程

创建项目

此项目格式

导入pom依赖

配置mybatis

配置spring

配置springmvc

配置web

测试增删改查流程

编写实体类

编写Mapper接口

mybatis实现

编写service接口

实现service接口

创建Controller文件并且编写增删改查方法

查询

前端jsp页面

显示

增加

前端jsp页面

显示

修改

前端jsp页面

删除

(完)

简介

ssm整合就是把spring框架springmvc框架和mybatis框架整合在一起724系统架构图前端框架

JSP模式是理论基础，但实际开发中，我们常将服务器端程序，根据逻辑进行分层。一般比较常见的分三层：经典三层体系架构。三层分别是：表示层、业务逻辑层、数据访问层（表现层、业务层、持久层）。

  • 表示层：又称为web层，与浏览器进行数据的交互。
  • 业务逻辑层：又称为service层，专门用于处理业务数据的。
  • 数据访问层：又称为dao层，与数据进行数据的交换的。将数据库的一条记录与JavaBean进行对应

系统构架图 

  • JSPjQuery框架HTML5、CSS3
  • Web框架：Spring MVC Spring Core
  • 基于IoC和AOP的处理方式统一管理所有的JavaBean
  • ORM：MyBatis框架
  • 数据存储：MySQL

数据库创建

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for bookmanage
-- ----------------------------
DROP TABLE IF EXISTS `bookmanage`;
CREATE TABLE `bookmanage`  (
  `id` int(0) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,
  `author` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,
  `time` datetime(0) NULL DEFAULT NULL,
  `type` int(0) NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of bookmanage
-- ----------------------------
INSERT INTO `bookmanage` VALUES (1, '安徒生童话', '安徒生', '2023-07-03 15:46:41', 1);
INSERT INTO `bookmanage` VALUES (2, '王棋历险记', '王棋', '2023-07-03 15:47:10', 2);
INSERT INTO `bookmanage` VALUES (3, '小史的故事', '屎程浩', '2023-07-03 15:47:50', 3);

SET FOREIGN_KEY_CHECKS = 1;

此数据库可以直接使用

整合框架流程

1.创建项目

2.导入pom配置文件依赖

3.配置mybatis配置文件

4.配置spring配置文件

5.配置springmvc配置文件

6.配置web配置文件

创建项目

 注意别选错误；选择完毕后点击下一步

此项目格式

导入pom依赖

<?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>org.example</groupId>
  <artifactId>sys_service</artifactId><!--我的和你的不一样根据自己的地址写-->
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>sys_service 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>8</maven.compiler.source><!--jdk改为8-->
    <maven.compiler.target>8</maven.compiler.target>

    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <spring.version>5.2.5.RELEASE</spring.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <!--  log4j 日志jar -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>
    <!--  连接mysql5 的驱动  -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.29</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</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-tx</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.9.2</version>
    </dependency>
    <!--  mybatis依赖  -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.2.2</version>
    </dependency>
    <!--  参考版本对应 http://www.mybatis.org/spring/  -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.2.2</version>
    </dependency>
    <!--  数据源管理  使用了dbcp2数据  -->
    <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-dbcp2</artifactId>
      <version>2.1.1</version>
    </dependency>
    <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-pool2</artifactId>
      <version>2.4.2</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!--  commons 文件上传jar  -->
    <dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>1.4</version>
    </dependency>
    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.3.1</version>
    </dependency>
    <!--  jstl  -->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <!--  加入JSON转换工具  -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.2.47</version>
    </dependency>

  </dependencies>

  <build>
    <finalName>springMVC01</finalName>
  </build>
</project>

配置mybatis

<?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="logImpl" value="LOG4J"/>
    </settings>
</configuration>

mybatis中不再配置jdbc都交给spring处理，此配置文件中只放log4j日志

配置spring

<?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:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:p="http://www.springframework.org/schema/p"
       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/tx
	http://www.springframework.org/schema/tx/spring-tx.xsd
	http://www.springframework.org/schema/aop
	http://www.springframework.org/schema/aop/spring-aop.xsd
    http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context.xsd
">
    <!--加载属性文件-->
    <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>

    <!--创建dbcp2数据源，此数据源可以替换为阿里的 德鲁伊-->
    <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="${driver}"></property>
        <property name="url" value="${url}"></property>
        <property name="username" value="${user}"></property>
        <property name="password" value="${pwd}"></property>
    </bean>

    <!--整合了slqSessionFactory包含了数据源（dataSource），配置文件（config）和映射文件（mapper）-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:mybatis.xml"></property>
        <property name="mapperLocations" value="classpath:mappers/*.xml"></property>
    </bean>

    <!--扫描Mapper接口-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.book.mapper"></property>
    </bean>

    <!--扫描业务逻辑层注解-->
    <context:component-scan base-package="com.book"></context:component-scan>

    <!--引入事务管理器，管理指定的数据源-->
    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" autowire="byName">
    </bean>

    <!--把事务管理，变成增强（通知），同时指定了方法的事务传播机制-->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="add*" propagation="REQUIRED"/>
            <tx:method name="update**" propagation="REQUIRED"/>
            <tx:method name="delete*" propagation="REQUIRED"/>
            <tx:method name="get*" propagation="REQUIRED" read-only="true"/>
        </tx:attributes>
    </tx:advice>

    <aop:config>
        <aop:pointcut id="servicePointcut" expression="execution(* com.book.service.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="servicePointcut"></aop:advisor>
    </aop:config>
       <!--引用springmvc配置文件-->
    <import resource="springmvc.xml"></import>
</beans>

一定要记得在配置spring配置文件要引用springmvc配置文件。

配置springmvc

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

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

    <mvc:annotation-driven>
        <mvc:message-converters>
            <bean class="org.springframework.http.converter.StringHttpMessageConverter">
                <property name="supportedMediaTypes">
                    <list>
                        <value>application/json;charset=UTF-8</value>
                        <value>text/html;charset=UTF-8</value>
                    </list>
                </property>
            </bean>
            <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
                <property name="supportedMediaTypes">
                    <list>
                        <value>text/html;charset=UTF-8</value>
                        <value>application/json</value>
                    </list>
                </property>
                <property name="features">
                    <list>
                        <!-- Date的日期转换器 -->
                        <value>WriteDateUseDateFormat</value>
                    </list>
                </property>
            </bean>
        </mvc:message-converters>
    </mvc:annotation-driven>

    <!--转发时的前后坠-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"></property><!--前缀-->
        <property name="suffix" value=""></property><!--后缀-->
    </bean>

    <!--设置存放图片的静态文件夹-->
    <mvc:resources mapping="/static/**" location="/static/"></mvc:resources>

    <!--  配置multipartResolver，用于上传文件，使用spring的CommonsMultipartResolver  -->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxInMemorySize" value="5000000"></property>
        <property name="defaultEncoding" value="UTF-8"></property>
    </bean>
</beans>

配置web

<!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">
  <display-name>Archetype Created Web Application</display-name>
  <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:spring.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>

  <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>
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

</web-app>

测试增删改查流程

1.编写实体类

2.编写mapper层

3.编写service层

4.编写controller层

5.网页测试

编写实体类

package com.book.bean;

import com.alibaba.fastjson.annotation.JSONField;
import org.springframework.format.annotation.DateTimeFormat;

import java.util.Date;

public class Bookmanage {
    private Integer id;
    private String name;
    private String author;
    @DateTimeFormat(pattern = "yyyy-MM-dd")//事件类型转换注解
    @JSONField(format = "yyyy-MM-dd")
    private Date time;
    private Integer type;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public Date getTime() {
        return time;
    }

    public void setTime(Date time) {
        this.time = time;
    }

    public Integer getType() {
        return type;
    }

    public void setType(Integer type) {
        this.type = type;
    }
}

编写Mapper接口

package com.book.mapper;


import com.book.bean.Bookmanage;

import java.util.List;

public interface BookmanageMapper {
    List<Bookmanage> getBookmanageList(Bookmanage bookmanage);

    int addBookmanage(Bookmanage bookmanage);

    Bookmanage getBookmanagebyid(int id);

    int updateBookmanage(Bookmanage bookmanage);

    int deleteBookmanagebyid(int id);
}

mybatis实现

<?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.book.mapper.BookmanageMapper">
    <select id="getBookmanageList" resultType="com.book.bean.Bookmanage" parameterType="com.book.bean.Bookmanage">
        SELECT id,name,author,time,type FROM `bookmanage`
        <where>
            <if test="id!=null">
                and id=#{id}
            </if>
            <if test="name!=null">
                and name=#{name}
            </if>
            <if test="author!=null">
                and author=#{author}
            </if>
            <if test="time!=null">
                and time=#{time}
            </if>
            <if test="type!=null">
                and type=#{type}
            </if>
        </where>
    </select>
    <insert id="addBookmanage" parameterType="com.book.bean.Bookmanage">
        insert into bookmanage(name,author,time,type)value(#{name},#{author},#{time},#{type})
    </insert>
    <select id="getBookmanagebyid" resultType="com.book.bean.Bookmanage" parameterType="int">
        SELECT id,name,author,time,type FROM `bookmanage` where id=#{id}
    </select>
    <update id="updateBookmanage" parameterType="com.book.bean.Bookmanage">
        update bookmanage
        <set>
            <if test="id!=null">
                id=#{id},
            </if>
            <if test="name!=null">
                name=#{name},
            </if>
            <if test="author!=null">
                author=#{author},
            </if>
            <if test="time!=null">
                time=#{time},
            </if>
            <if test="type!=null">
                type=#{type},
            </if>
        </set>
            where id=#{id}
    </update>
    <delete id="deleteBookmanagebyid" parameterType="int">
        delete from bookmanage where id=#{id}
    </delete>
</mapper>

编写service接口

package com.book.service;

import com.book.bean.Bookmanage;

import java.util.List;

public interface BookmanageService {
    List<Bookmanage> getBookmanageList(Bookmanage bookmanage);

    int addBookmanage(Bookmanage bookmanage);

    Bookmanage getBookmanagebyid(int id);

    int updateBookmanage(Bookmanage bookmanage);

    int deleteBookmanagebyid(int id);
}

实现service接口

package com.book.service.impl;

import com.book.bean.Bookmanage;
import com.book.mapper.BookmanageMapper;
import com.book.service.BookmanageService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class BookmanageServiceImpl implements BookmanageService {

    @Autowired
    BookmanageMapper bookmanageMapper;

    @Override
    public List<Bookmanage> getBookmanageList(Bookmanage bookmanage) {
        return bookmanageMapper.getBookmanageList(bookmanage);
    }

    @Override
    public int addBookmanage(Bookmanage bookmanage) {
        return bookmanageMapper.addBookmanage(bookmanage);
    }

    @Override
    public Bookmanage getBookmanagebyid(int id) {
        return bookmanageMapper.getBookmanagebyid(id);
    }

    @Override
    public int updateBookmanage(Bookmanage bookmanage) {
        return bookmanageMapper.updateBookmanage(bookmanage);
    }

    @Override
    public int deleteBookmanagebyid(int id) {
        return bookmanageMapper.deleteBookmanagebyid(id);
    }
}

创建Controller文件并且编写增删改查方法

调用service层并创建对象

package com.book.controller;


import com.book.bean.Bookmanage;
import com.book.service.BookmanageService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.List;

@Controller
@RequestMapping("/bookmanage")
public class BookmanageController {

    @Autowired
    BookmanageService bookmanageService;

}

查询

转发的页面要在jsp的包中

@RequestMapping("/getList")
    public String getList(Bookmanage bookmanage, Model model){
        List<Bookmanage>list=bookmanageService.getBookmanageList(bookmanage);
        model.addAttribute("list",list);
        return "getbookList.jsp";
    }
前端jsp页面
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <table border="1">
        <tr>
            <td>编号</td>
            <td>书名</td>
            <td>作者</td>
            <td>时间</td>
            <td>类型</td>
            <td>&nbsp;&nbsp;操&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;作&nbsp;&nbsp;</td>
        </tr>
        <c:forEach items="${list}" var="b">
            <tr>
                <td>${b.id}</td>
                <td>${b.name}</td>
                <td>${b.author}</td>
                <td>${b.time}</td>
                <td class="typeBom">${b.type}</td>
                <td><a href="/bookmanage/goupdate?id=${b.id}">修改</a>&nbsp;&nbsp;<a href="/bookmanage/delete?id=${b.id}">删除</a></td>
            </tr>
        </c:forEach>
    </table>
    <a href="/bookmanage/goadd">添加书籍</a>
</body>
<script>
    //让状态的数值转换为汉字
    var typeBom=document.getElementsByClassName("typeBom");
    for (var i=0;i<typeBom.length;i++){
        if (typeBom[i].innerHTML==1){
            typeBom[i].innerHTML="计算机"
        }else if (typeBom[i].innerHTML==2){
            typeBom[i].innerHTML="小说"
        }else{
            typeBom[i].innerHTML="杂志"
        }
    }
</script>
</html>
显示

增加

goadd方法跳转到add页面，因为/WEB-INF/jsp/包下的文件是不能随便访问的

我们springmvc配置了转发可以访问，所以写一个只有转发的goadd方法

@RequestMapping("/goadd")
    public String goadd(){
        return "addbook.jsp";
    }
    @RequestMapping("/add")
    public String getList(Bookmanage bookmanage){
        bookmanageService.addBookmanage(bookmanage);
        return "redirect:/bookmanage/getList";
    }

add方法增加完重定项到查询的页面

前端jsp页面
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <form action="/bookmanage/add" method="post">
        书名：<input type="text" name="name">
        <br>
        作者：<input type="text" name="author">
        <br>
        时间：<input type="text" name="time">
        <br>
        类型：<select name="type">
                <option value="0">请选择</option>
                <option value="1">计算机</option>
                <option value="2">小说</option>
                <option value="3">杂志</option>
            </select>
        <input type="submit" value="提交">
    </form>
</body>
</html>
显示

 点击提交后自动重定项到查询页面

修改

修改要先根据id查一下要修改的列

@RequestMapping("/goupdate")
    public String goupdate(int id,Model model){
        Bookmanage bookmanage=bookmanageService.getBookmanagebyid(id);
        model.addAttribute("bookmanage",bookmanage);
        return "updatebook.jsp";
    }
    @RequestMapping("/update")
    public String update(Bookmanage bookmanage){
        bookmanageService.updateBookmanage(bookmanage);
        return "redirect:/bookmanage/getList";
    }
前端jsp页面
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="b"%>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <form action="/bookmanage/update" method="post">
        <input type="hidden" name="id" value="${bookmanage.id}">
        书名：<input type="text" name="name" value="${bookmanage.name}">
        <br>
        作者：<input type="text" name="author" value="${bookmanage.author}">
        <br>
        时间：<input type="text" name="time" value="${bookmanage.time}">
        <br>
        类型：<select name="type">
                <option value="0">请选择</option>
                <option value="1">计算机</option>
                <option value="2">小说</option>
                <option value="3">杂志</option>
            </select>
        <input type="submit" value="提交">
    </form>
</body>
</html>

删除

只用前端页面提供的id就行

@RequestMapping("/delete")
    public String delete(int id){
        bookmanageService.deleteBookmanagebyid(id);
        return "redirect:/bookmanage/getList";
    }

(完)

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