(0基础保姆教程)-JavaEE开课啦！--11课程(初识Spring MVC + Vue2.0 + Mybatis)-实验9

一、什么是Spring MVC？

        Spring MVC 是一个基于 Java 的 Web 框架，遵循 MVC 设计模式，用于构建企业级应用程序。它通过控制器(Controller)处理用户请求，模型(Model)处理业务逻辑，视图(View)展示数据，实现了请求的分发、数据绑定、视图解析、异常处理等功能，并支持多种视图技术，以提高开发效率和代码的可维护性。

二、Spring MVC有哪些优点呢？

1. 无缝集成：与 Spring 生态系统紧密集成。
2. 灵活性：支持多种配置方式和视图技术。
3. 易于测试：控制器易于进行单元测试。
4. 数据绑定和验证：提供自动数据绑定和验证功能。
5. 拦截器和过滤器：支持拦截器和过滤器以扩展功能。
6. 国际化支持：简化多语言界面的开发。
7. 社区支持：拥有庞大的开发者社区和资源。
8. 可定制性：高度可定制以满足不同项目需求。

三、准备第一个Spring MVC项目

Example:

        编写客户信息（客户名称、客户单位、客户职位、客户生日、客户性别、客户联系方式）注册页面addcustom.jsp。要求：

        1.利用Mybatis框架将客户信息保存到数据库中;

        2.能够利用SpringMVC控制器将页面切换到该注册页面。

流程：

1.创建MySQL数据表customlist

2.创建SpringMvc项目，在pom文件引入相关依赖

3.创建spring-mvc.xml配置文件

4.创建web.xml配置文件

5.创建Entity-Custom客户实体类

6.创建db.properties/mybatis-config.xml配置文件

7.创建Mapper-CustomListMapper配置文件

8.创建applicationContext.xml配置文件

9.引入Vue2.0和Element-ui框架

10.创建Pages-customIndex.jsp和addcustom.jsp前端映射文件

11.创建controller-CustomController文件

12.配置tomcat服务器，运行项目

四、开始上操作

1.创建MySQL数据表customlist

SET NAMES utf8mb4;SET FOREIGN_KEY_CHECKS = 0;-- ------------------------------ Table structure for customlist-- ----------------------------DROP TABLE IF EXISTS `customlist`;CREATE TABLE `customlist`  (`id` int NOT NULL AUTO_INCREMENT,`name` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL,`company` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL,`role` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL,`birthday` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL,`gender` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL,`tel` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL,PRIMARY KEY (`id`) USING BTREE) ENGINE = InnoDB AUTO_INCREMENT = 11 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_bin ROW_FORMAT = Dynamic;SET FOREIGN_KEY_CHECKS = 1;

2.创建SpringMvc项目，在pom文件引入相关依赖

项目结构：

 打开IDEA，创建项目-Maven Archetype-名称-位置-JDK-Archetype-创建

点击创建后需要等待较长时间构建项目，完成加载和构建后，会显示以下界面：

<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.ljl</groupId><artifactId>Spring_MVC_class9</artifactId><packaging>war</packaging><version>1.0-SNAPSHOT</version><name>Spring_MVC_class9 Maven Webapp</name><url>http://maven.apache.org</url><dependencies><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>3.8.1</version><scope>test</scope></dependency><!--    Spring 基础配置--><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>5.3.10</version></dependency><!--    SpringMVC工具插件--><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>5.3.10</version></dependency><!--    servlet插件--><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>3.1.0</version></dependency><dependency><groupId>javax.servlet.jsp</groupId><artifactId>jsp-api</artifactId><version>2.1</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.32</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.5.11</version></dependency><dependency><groupId>org.junit.jupiter</groupId><artifactId>junit-jupiter</artifactId><version>RELEASE</version><scope>compile</scope></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>2.15.4</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.15.4</version></dependency></dependencies><build><finalName>Spring_MVC_class9</finalName></build>
</project>

3.创建spring-mvc.xml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"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/beanshttps://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttps://www.springframework.org/schema/context/spring-context.xsdhttp://www.springframework.org/schema/mvchttps://www.springframework.org/schema/mvc/spring-mvc.xsd"><mvc:annotation-driven/><context:component-scan base-package="com.ljl.controller"/><bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping" /><bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" />
<!--    配置视图解释器--><bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/WEB-INF/pages/"/><property name="suffix" value=".jsp"/></bean>
</beans>

4.创建web.xml配置文件

<?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/javaeehttp://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"version="3.1"><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:spring-mvc.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><filter><filter-name>chinese_encoder</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>chinese_encoder</filter-name><url-pattern>/*</url-pattern></filter-mapping>
</web-app>

5.创建Entity-Custom客户实体类

package com.ljl.Entity;public class Custom {private int id;private String name;private String company;private String role;private String birthday;private String gender;private String tel;public Custom() {}public Custom(int id, String name, String company, String role, String birthday, String gender, String tel) {this.id = id;this.name = name;this.company = company;this.role = role;this.birthday = birthday;this.gender = gender;this.tel = tel;}public int getId() {return id;}public void setId(int id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getCompany() {return company;}public void setCompany(String company) {this.company = company;}public String getRole() {return role;}public void setRole(String role) {this.role = role;}public String getBirthday() {return birthday;}public void setBirthday(String birthday) {this.birthday = birthday;}public String getGender() {return gender;}public void setGender(String gender) {this.gender = gender;}public String getTel() {return tel;}public void setTel(String tel) {this.tel = tel;}@Overridepublic String toString() {return "Custom{" +"id=" + id +", name='" + name + '\'' +", company='" + company + '\'' +", role='" + role + '\'' +", birthday='" + birthday + '\'' +", gender='" + gender + '\'' +", tel='" + tel + '\'' +'}';}
}

6.创建db.properties/mybatis-config.xml配置文件

mysql.driver=com.mysql.cj.jdbc.Driver
mysql.url=jdbc:mysql://localhost:3306/class9_springmvc?serverTimezone=UTC&\characterEncoding=utf-8&useUnicode=true&useSSl=false
mysql.username=root
mysql.password=pjl2003

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configurationPUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration><properties resource="db.properties"/>
<!--    设置实体别名--><typeAliases><package name="com.ljl.Entity"/></typeAliases><!-- 和spring整合后 environments配置将废除--><environments default="development"><environment id="development"><!-- 使用jdbc事务管理--><transactionManager type="JDBC" /><!-- 数据库连接池--><dataSource type="POOLED"><property name="driver" value="${mysql.driver}" /><property name="url" value="${mysql.url}" />
<!--                //数据库账号--><property name="username" value="${mysql.username}" />
<!--                //数据库密码--><property name="password" value="${mysql.password}" /></dataSource></environment></environments><!--声明类对应的sql操作文件--><mappers><mapper class="com.ljl.Mapper.CustomListMapper"/></mappers>
</configuration>

7.创建Mapper-CustomListMapper配置文件

package com.ljl.Mapper;import com.ljl.Entity.Custom;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;import java.util.List;public interface CustomListMapper {//TODO 增加客户信息@Insert("INSERT INTO customlist (name, company, role, birthday, gender, tel) values (#{name}, #{company}, #{role}, #{birthday}, #{gender}, #{tel})")int insertCustom(Custom custom);//TODO 查询客户信息-全部@Select("SELECT * FROM customlist")List<Custom> getAllCustomList();//TODO 查询订单信息-根据客户名称模糊查询@Select("SELECT * FROM customlist WHERE name LIKE CONCAT('%', #{name}, '%')")List<Custom> getOrderListByLikeCustomName(String name);//TODO 查询订单信息-根据客户名称详细查询@Select("SELECT * FROM customlist WHERE name = #{name}")List<Custom> getOrderListByCustomName(String name);
}

8.创建applicationContext.xml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/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd"><!--    自动装配Bean--><context:component-scan base-package="com.ljl.controller"/>
</beans>

9.引入Vue2.0和Element-ui框架

<!-- import CSS -->
<link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css"><!-- import Vue before Element -->
<script src="https://unpkg.com/vue@2/dist/vue.js"></script>
<!-- import JavaScript -->
<script src="https://unpkg.com/element-ui/lib/index.js"></script>

10.创建index.jsp \ Pages-customIndex.jsp和addcustom.jsp前端映射文件

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>CustomWelcome</title><!-- import CSS --><link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
</head>
<body>
<div id="index" class="big_box"><H1 class="tittle">欢迎使用{{ sys_name }}客户管理系统</H1><el-row><el-button type="primary" round style="width: 14%" @click="gosystem">开始使用</el-button></el-row>
</div></body>
<!-- import Vue before Element -->
<script src="https://unpkg.com/vue@2/dist/vue.js"></script>
<!-- import JavaScript -->
<script src="https://unpkg.com/element-ui/lib/index.js"></script>
<script>new Vue({el: '#index',data: function() {return {sys_name:"岚精灵"}},methods: {gosystem(){this.$message.success("欢迎使用岚精灵员工系统！");// 跳转到指定的URL// 设置延迟1秒后跳转setTimeout(() => {window.location.href = 'http://localhost:8090/Spring_MVC_class9_war_exploded/customIndex';}, 1000); // 1000毫秒等于1秒}}})
</script>
<style>*{margin: 0;padding: 0;}body {background-color: rebeccapurple;}.big_box{width: 100%;text-align: center;margin: 0 auto;}.tittle{margin-top: 250px;font-size: 55px;color: beige;margin-bottom: 170px;}
</style>
</html>

<%--Created by IntelliJ IDEA.User: 26520Date: 2024/11/21Time: 13:40To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>customSystem</title><!-- import CSS --><link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
</head>
<body>
<div id="cindex" class="cindex">
<%--    搜索框--%><div style="margin-bottom: 40px;">
<%--        这里的键盘事件，由于使用了Element-ui，需要加上.native进行限制，因为在Element-ui中对active进行了封装，需要加上native进行限制--%><el-input placeholder="请输入客户名称" v-model="search" class="input-with-select" @keyup.enter.native="search_ks"><el-select v-model="select" slot="prepend" placeholder="请选择"><el-option label="模糊查询" value="1"></el-option><el-option label="准确查询" value="2"></el-option></el-select><el-button @click="search_ks" slot="append" icon="el-icon-search"  @keyup.enter.native="search_ks"></el-button></el-input></div>
<%--    内容展示框--%><el-table height="550" :data="tableData" style="width: 100%; text-align: center" :row-class-name="tableRowClassName"><el-table-columnprop="id"label="id"></el-table-column><el-table-columnprop="name"label="客户名称"></el-table-column><el-table-columnprop="company"label="客户单位"></el-table-column><el-table-columnprop="role"label="客户职位"></el-table-column><el-table-columnprop="birthday"label="客户生日"></el-table-column><el-table-columnprop="gender"label="客户性别"></el-table-column><el-table-columnprop="tel"label="联系方式"></el-table-column></el-table><div class="dibu_button"><el-row style="display: inline-block"><el-button type="primary" plain @click="addcustom">添加客户</el-button></el-row><el-row style="display: inline-block; margin-left: 30px"><el-button type="info" plain @click="go_out">退出系统</el-button></el-row></div></div></body>
<!-- import Vue before Element -->
<script src="https://unpkg.com/vue@2/dist/vue.js"></script>
<!-- import JavaScript -->
<script src="https://unpkg.com/element-ui/lib/index.js"></script>
<script>new Vue({el: '#cindex',data: function() {return {search: '',// 这里默认情况下是模糊查询select: '1',tableData: []}},methods: {handleEdit(index, row) {console.log(index, row);},handleDelete(index, row) {console.log(index, row);},tableRowClassName({row, rowIndex}) {if (rowIndex === 1) {return 'warning-row';} else if (rowIndex === 3) {return 'success-row';}return '';},addcustom(){this.$message.warning("加载中！");// 跳转到指定的URLsetTimeout(() => {window.location.href = 'http://localhost:8090/Spring_MVC_class9_war_exploded/goaddcustom';}, 300);},fetchData() {fetch('http://localhost:8090/Spring_MVC_class9_war_exploded/selectAllCustomList', {headers: {'Accept': 'application/json'}}).then(response => {if (!response.ok) {throw new Error('Network response was not ok ' + response.statusText);}return response.json();}).then(data => {this.tableData = data;}).catch(error => {console.error('There has been a problem with your fetch operation:', error);});},search_ks(){// 实现点击查询功能,先判断是模糊查询还是准确查询，查询出来的数据保存在tableData[]中//模糊查询if (this.search === ""){this.$message.error("请输入需要查询的客户姓名！")}else {if (this.select === "1"){fetch('http://localhost:8090/Spring_MVC_class9_war_exploded/selectCustomLikeName?CustomName=' + this.search, {method: 'POST', // 设置请求方法为 POSTheaders: {'Accept': 'application/json'}}).then(response => {if (!response.ok) {throw new Error('Network response was not ok ' + response.statusText);}return response.json();}).then(data => {this.$message.success("查询成功！")this.tableData = data;}).catch(error => {console.error('There has been a problem with your fetch operation:', error);});}else if (this.select === "2") {fetch('http://localhost:8090/Spring_MVC_class9_war_exploded/selectCustomByName?CustomName=' + this.search, {method: 'POST', // 设置请求方法为 POSTheaders: {'Accept': 'application/json'}}).then(response => {if (!response.ok) {throw new Error('Network response was not ok ' + response.statusText);}return response.json();}).then(data => {this.$message.success("查询成功！")this.tableData = data;}).catch(error => {console.error('There has been a problem with your fetch operation:', error);});}}},go_out(){this.$message.success("退出成功！")setTimeout(() => {window.location.href = 'http://localhost:8090/Spring_MVC_class9_war_exploded/';}, 300);}},created() {this.fetchData(); // 当组件创建后调用 fetchData 方法},})
</script>
<style>*{margin: 0;padding: 0;}body {background-color: #eaddf6;}.cindex{width: 70%;padding-top: 100px;text-align: center;margin: 0 auto;}.el-select .el-input {width: 130px;}.input-with-select .el-input-group__prepend {background-color: #fff;}.el-table .warning-row {background: oldlace;}.el-table .success-row {background: #f0f9eb;}.dibu_button{width: 100%;margin: 0 auto;margin-top: 30px;text-align: center;}
</style>
</html>

<%--Created by IntelliJ IDEA.User: 26520Date: 2024/11/21Time: 13:40To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>customSystem</title><!-- import CSS --><link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
</head>
<body>
<div id="addcustom" class="big"><div class="from"><h1 style="text-align: center;color: #9438ec;font-size: 35px;margin-bottom: 40px;margin-top: 40px">添加客户</h1><el-form ref="form" :model="form" :label-position="right" label-width="80px" action=""><el-form-item label="姓名"><el-input v-model="form.name"></el-input></el-form-item><el-form-item label="单位"><el-input v-model="form.company"></el-input></el-form-item><el-form-item label="职位"><el-input v-model="form.role"></el-input></el-form-item><el-form-item label="生日"><el-date-pickerv-model="form.birthday"type="date"style="width: 100%"placeholder="选择日期"></el-date-picker></el-form-item><el-form-item label="性别"><el-select style="width: 100%" v-model="form.gender" placeholder="请选择"><el-optionv-for="item in genderchange":key="item.value":label="item.label":value="item.value"></el-option></el-select></el-form-item><el-form-item label="电话"><el-input v-model="form.tel"></el-input></el-form-item><el-button type="primary" @click="add">立即创建</el-button><el-button type="danger" @click="back" style="margin-bottom: 40px">立即返回</el-button></el-form></div></div></body>
<!-- import Vue before Element -->
<script src="https://unpkg.com/vue@2/dist/vue.js"></script>
<!-- import JavaScript -->
<script src="https://unpkg.com/element-ui/lib/index.js"></script>
<script>new Vue({el: '#addcustom',data: function() {return {form: {name: '',company:"",role:"",birthday:"",gender:"",tel:""},pickerOptions: {disabledDate(time) {return time.getTime() > Date.now();},},genderchange: [{value: '男',label: '男'}, {value: '女',label: '女'}, {value: '其他',label: '其他'}],}},methods: {checkForm() {let allFilled = true;for (let key in this.form) {if (!this.form[key] && this.form[key] !== 0) { // 假设0是一个有效的值allFilled = false;break;}}return allFilled;},add(){if (!this.checkForm()) {this.$message.error("请填写所有必填字段");return;}// 格式化生日日期为 yyyy-mm-ddthis.form.birthday = this.form.birthday ? this.form.birthday.toISOString().split('T')[0] : '';// 创建URLSearchParams对象并添加数据const params = new URLSearchParams();params.append('name', this.form.name);params.append('company', this.form.company);params.append('role', this.form.role);params.append('birthday', this.form.birthday);params.append('gender', this.form.gender);params.append('tel', this.form.tel);// 发送POST请求fetch('http://localhost:8090/Spring_MVC_class9_war_exploded/addcustom', {method: 'POST',headers: {'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8'},body: params // URLSearchParams对象会自动转换为URL编码的字符串}).then(response => {if (response.ok) {return response.text(); // 或者 response.json() 如果响应是JSON格式}throw new Error('Network response was not ok.');}).then(data => {console.log(data);this.$message.success("数据添加成功！");setTimeout(() => {window.location.href = 'http://localhost:8090/Spring_MVC_class9_war_exploded/';}, 300); // 1000毫秒等于1秒}).catch(error => {console.error('Error:', error);this.$message.error("数据添加失败！");});},back(){this.$message.warning("请稍等！");// 跳转到指定的URL// 设置延迟1秒后跳转setTimeout(() => {window.location.href = 'http://localhost:8090/Spring_MVC_class9_war_exploded/customIndex';}, 300); // 1000毫秒等于1秒}}})
</script>
<style>*{margin: 0;padding: 0;}.big{width: 70%;padding-top: 100px;text-align: center;margin: 0 auto;}.from{width: 40%;padding-right: 40px;text-align: center;margin: 0 auto;border: 1px solid grey;border-radius: 8px;}
</style>
</html>

11.创建controller-CustomController文件

package com.ljl.controller;import com.fasterxml.jackson.core.JsonProcessingException;
import com.ljl.Entity.Custom;
import com.ljl.Mapper.CustomListMapper;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;@Controller
@CrossOrigin(origins = "*")
public class CustomController {//主页@RequestMapping("/customIndex")public String customIndex() {return "customIndex";}//添加客户界面@RequestMapping("/goaddcustom")public String goaddcustom() {return "addcustom";}//添加客户到sql，再返回到主页@RequestMapping("/addcustom")public String addcustom(Custom custom) {if (custom.getName() != null) {SqlSessionFactory ssf = null;try {InputStream input = Resources.getResourceAsStream("mybatis-config.xml");ssf = new SqlSessionFactoryBuilder().build(input);} catch (IOException e) {e.printStackTrace();}SqlSession sqlSession = ssf.openSession();CustomListMapper customListMapper = sqlSession.getMapper(CustomListMapper.class);int result_code = customListMapper.insertCustom(custom);sqlSession.commit();if (result_code == 1) {System.out.println("新增客户成功！");}else {System.out.println("新增客户失败！");}}return "customIndex";}//获取全部客户信息@GetMapping(value = "selectAllCustomList", produces = "application/json")@ResponseBodypublic List<Custom> selectAllCustomList() {SqlSessionFactory ssf = null;try {InputStream input = Resources.getResourceAsStream("mybatis-config.xml");ssf = new SqlSessionFactoryBuilder().build(input);} catch (IOException e) {e.printStackTrace();}SqlSession sqlSession = ssf.openSession();CustomListMapper customListMapper = sqlSession.getMapper(CustomListMapper.class);List<Custom> custom = customListMapper.getAllCustomList();System.out.println("系统正在获取所有客户信息");return custom;}//模糊查询客户信息-根据name模糊查询@PostMapping(value = "selectCustomLikeName", produces = "application/json")@ResponseBodypublic List<Custom> selectCustomLikeName(HttpServletRequest request){SqlSessionFactory ssf = null;try {InputStream input = Resources.getResourceAsStream("mybatis-config.xml");ssf = new SqlSessionFactoryBuilder().build(input);} catch (IOException e) {e.printStackTrace();}SqlSession sqlSession = ssf.openSession();CustomListMapper customListMapper = sqlSession.getMapper(CustomListMapper.class);List<Custom> custom = customListMapper.getOrderListByLikeCustomName(request.getParameter("CustomName"));System.out.println("用户正在进行模糊查询");return custom;}//准确查询客户信息-根据name准确查询@PostMapping(value = "selectCustomByName", produces = "application/json")@ResponseBodypublic List<Custom> selectCustomByName(HttpServletRequest request){SqlSessionFactory ssf = null;try {InputStream input = Resources.getResourceAsStream("mybatis-config.xml");ssf = new SqlSessionFactoryBuilder().build(input);} catch (IOException e) {e.printStackTrace();}SqlSession sqlSession = ssf.openSession();CustomListMapper customListMapper = sqlSession.getMapper(CustomListMapper.class);List<Custom> custom = customListMapper.getOrderListByCustomName(request.getParameter("CustomName"));System.out.println("用户正在进行精确查询");return custom;}
}

12.配置tomcat服务器，运行项目

五、运行看效果

1.初始加载页面

2.进入系统主界面

3.模糊查询

4.精确查询

5.注册界面

6.注册成功返回主界面