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？
-
无缝集成：与 Spring 生态系统紧密集成。
-
灵活性：支持多种配置方式和视图技术。
-
易于测试：控制器易于进行单元测试。
-
数据绑定和验证：提供自动数据绑定和验证功能。
-
拦截器和过滤器：支持拦截器和过滤器以扩展功能。
-
国际化支持：简化多语言界面的开发。
-
社区支持：拥有庞大的开发者社区和资源。
-
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
java
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：
java
<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
java
<?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
https://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">
<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
java
<?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_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
java
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;
}
@Override
public 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
java
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
java
<?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>
<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
java
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
java
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 自动装配Bean-->
<context:component-scan base-package="com.ljl.controller"/>
</beans>9.引入Vue2.0和Element-ui框架
java
<!-- 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
html
<%@ 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>
html
<%--
Created by IntelliJ IDEA.
User: 26520
Date: 2024/11/21
Time: 13:40
To 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-column
prop="id"
label="id">
</el-table-column>
<el-table-column
prop="name"
label="客户名称">
</el-table-column>
<el-table-column
prop="company"
label="客户单位">
</el-table-column>
<el-table-column
prop="role"
label="客户职位">
</el-table-column>
<el-table-column
prop="birthday"
label="客户生日">
</el-table-column>
<el-table-column
prop="gender"
label="客户性别">
</el-table-column>
<el-table-column
prop="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URL
setTimeout(() => {
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.$message.error("请输入需要查询的客户姓名！")
}else {
if (this.select === "1"){
fetch('http://localhost:8090/Spring_MVC_class9_war_exploded/selectCustomLikeName?CustomName=' + this.search, {
method: 'POST', // 设置请求方法为 POST
headers: {
'Accept': 'application/json'
}
})
.then(response => {
if (!response.ok) {
throw new Error('Network response was not ok ' + response.statusText);
}
return response.json();
})
.then(data => {
this.$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 POST
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.$message.success("查询成功！")
this.tableData = data;
})
.catch(error => {
console.error('There has been a problem with your fetch operation:', error);
});
}
}
},
go_out(){
this.$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>
html
<%--
Created by IntelliJ IDEA.
User: 26520
Date: 2024/11/21
Time: 13:40
To 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-picker
v-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-option
v-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.$message.error("请填写所有必填字段");
return;
}
// 格式化生日日期为 yyyy-mm-dd
this.form.birthday = this.form.birthday ? this.form.birthday.toISOString().split('T')[0] : '';
// 创建URLSearchParams对象并添加数据
const params = new URLSearchParams();
params.append('name', this.form.name);
params.append('company', this.form.company);
params.append('role', this.form.role);
params.append('birthday', this.form.birthday);
params.append('gender', this.form.gender);
params.append('tel', this.form.tel);
// 发送POST请求
fetch('http://localhost:8090/Spring_MVC_class9_war_exploded/addcustom', {
method: 'POST',
headers: {
'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8'
},
body: params // URLSearchParams对象会自动转换为URL编码的字符串
})
.then(response => {
if (response.ok) {
return response.text(); // 或者 response.json() 如果响应是JSON格式
}
throw new Error('Network response was not ok.');
})
.then(data => {
console.log(data);
this.$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
java
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")
@ResponseBody
public 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")
@ResponseBody
public 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")
@ResponseBody
public 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
