转git仓库

.gitignore

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+# Maven 构建产物
+target/
+*/target/
+**/target/
+
+# IntelliJ IDEA 配置文件
+.idea/
+*.iws
+*.iml
+*.ipr
+out/
+
+# 系统临时文件
+*.tmp
+*.temp
+*~
+
+# Windows 系统文件
+Thumbs.db
+Desktop.ini
+
+# 日志文件
+logs/
+*.log
+**/logs/
+**/*.log
+
+# 测试报告
+test-reports/
+surefire-reports/
+failsafe-reports/
+jacoco.exec
+jacoco-report/
+
+# 打包文件
+*.jar
+*.war
+*.ear
+*.zip
+*.tar.gz
+*.tar.bz2
+
+# 敏感配置文件
+*.key
+*.pem

http-server-demo/pom.xml

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+<?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>com.itheima</groupId>
+    <artifactId>http-server-demo</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+    </properties>
+
+</project>

http-server-demo/src/main/java/com/inmind/Server.java

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+package com.inmind;
+
+import java.io.*;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.nio.charset.StandardCharsets;
+
+/*
+ * 自定义web服务器
+ */
+public class Server {
+    public static void main(String[] args) throws IOException {
+        ServerSocket ss = new ServerSocket(8080); // 监听指定端口
+        System.out.println("server is running...");
+
+        while (true){
+            Socket sock = ss.accept();
+            System.out.println("connected from " + sock.getRemoteSocketAddress());
+
+            //开启线程处理请求
+            Thread t = new Handler(sock);
+            t.start();
+        }
+    }
+}
+
+class Handler extends Thread {
+    Socket sock;
+
+    public Handler(Socket sock) {
+        this.sock = sock;
+    }
+
+    public void run() {
+        try (InputStream input = this.sock.getInputStream(); OutputStream output = this.sock.getOutputStream()) {
+                handle(input, output);
+        } catch (Exception e) {
+            try {
+                this.sock.close();
+            } catch (IOException ioe) {
+            }
+            System.out.println("client disconnected.");
+        }
+    }
+
+    private void handle(InputStream input, OutputStream output) throws IOException {
+        BufferedReader reader = new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8));
+        BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(output, StandardCharsets.UTF_8));
+
+        // 读取HTTP请求:
+        boolean requestOk = false;
+        String first = reader.readLine();
+        if (first.startsWith("GET / HTTP/1.")) {
+            requestOk = true;
+        }
+
+        for (;;) {
+            String header = reader.readLine();
+            if (header.isEmpty()) { // 读取到空行时, HTTP Header读取完毕
+                break;
+            }
+            System.out.println(header);
+        }
+        System.out.println(requestOk ? "Response OK" : "Response Error");
+
+        if (!requestOk) {// 发送错误响应:
+            writer.write("HTTP/1.0 404 Not Found\r\n");
+            writer.write("Content-Length: 0\r\n");
+            writer.write("\r\n");
+            writer.flush();
+        } else {  // 发送成功响应:
+            //读取html文件，转换为字符串
+            InputStream is = Server.class.getClassLoader().getResourceAsStream("html/a.html");
+            BufferedReader br = new BufferedReader(new InputStreamReader(is));
+            StringBuilder data = new StringBuilder();
+            String line = null;
+            while ((line = br.readLine()) != null){
+                data.append(line);
+            }
+            br.close();
+            int length = data.toString().getBytes(StandardCharsets.UTF_8).length;
+
+            writer.write("HTTP/1.1 200 OK\r\n");
+            writer.write("Connection: keep-alive\r\n");
+            writer.write("Content-Type: text/html\r\n");
+            writer.write("Content-Length: " + length + "\r\n");
+            writer.write("\r\n"); // 空行标识Header和Body的分隔
+            writer.write(data.toString());
+            writer.flush();
+        }
+    }
+}

http-server-demo/src/main/resources/html/a.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Title</title>
+</head>
+<body>
+
+<table border="1" cellspacing="0" width="500">
+    <tr>
+        <th>序号</th>
+        <th>品牌名称</th>
+        <th>企业名称</th>
+
+    </tr>
+    <tr align="center">
+        <td>010</td>
+        <td>三只松鼠</td>
+        <td>三只松鼠</td>
+    </tr>
+
+    <tr align="center">
+        <td>009</td>
+        <td>优衣库</td>
+        <td>优衣库</td>
+    </tr>
+
+    <tr align="center">
+        <td>008</td>
+        <td>小米</td>
+        <td>小米科技有限公司</td>
+    </tr>
+
+
+</table>
+
+
+</body>
+</html>

maven-project01/pom.xml

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+<?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>
+
+    <!--项目描述坐标-->
+    <groupId>com.inmind</groupId>
+    <artifactId>maven-project01</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <!--依赖管理坐标-->
+    <dependencies>
+        <!--logback日志框架-->
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>1.2.4</version>
+            <!--依赖范围-->
+<!--            <scope>compile</scope>-->
+            <scope>test</scope>
+        </dependency>
+
+    </dependencies>
+    <!--  打包插件  -->
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-assembly-plugin</artifactId>
+                <version>2.4.1</version>
+                <configuration>
+                    <descriptorRefs><descriptorRef>jar-with-dependencies</descriptorRef></descriptorRefs>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>make-assembly</id>
+                        <phase>package</phase>
+                        <goals><goal>single</goal></goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

maven-project01/src/main/java/com/inmind/HelloWorld.java

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+package com.inmind;
+
+//import org.slf4j.Logger;
+
+public class HelloWorld {
+//    Logger logger;
+
+    public static void main(String[] args) {
+        System.out.println("Hello Maven");
+    }
+}

maven-project01/src/test/java/com/inmind/DemoTest.java

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+package com.inmind;
+
+import org.slf4j.Logger;
+
+public class DemoTest {
+
+    Logger logger;
+}

maven-project02/pom.xml

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+<?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>com.itheima</groupId>
+    <artifactId>maven-project02</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>1.2.3</version>
+        </dependency>
+
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+        </dependency>
+    </dependencies>
+
+</project>

maven-projectA/pom.xml

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+<?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>
+
+    <!--项目坐标信息-->
+    <groupId>com.inmind</groupId>
+    <artifactId>maven-projectA</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+    </properties>
+
+    <!--依赖管理-->
+    <dependencies>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>1.2.3</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.inmind</groupId>
+            <artifactId>maven-projectB</artifactId>
+            <version>1.0-SNAPSHOT</version>
+            <!--排除依赖【面试题】-->
+            <exclusions>
+                <exclusion>
+                    <groupId>junit</groupId>
+                    <artifactId>junit</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+    </dependencies>
+</project>

maven-projectB/pom.xml

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+<?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>
+
+    <!--项目坐标信息-->
+    <groupId>com.inmind</groupId>
+    <artifactId>maven-projectB</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+    </properties>
+
+    <!--项目B的依赖管理-->
+    <dependencies>
+        <dependency>
+            <groupId>com.inmind</groupId>
+            <artifactId>maven-projectC</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.10</version>
+        </dependency>
+    </dependencies>
+
+</project>

maven-projectC/pom.xml

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+<?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>
+
+    <!--项目坐标信息-->
+    <groupId>com.inmind</groupId>
+    <artifactId>maven-projectC</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+    </properties>
+
+    <!--项目C的依赖管理-->
+    <dependencies>
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>2.11.0</version>
+        </dependency>
+    </dependencies>
+</project>

mysql-day02-DML.sql

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+-- auto-generated definition
+create table tb_emp
+(
+    id          int unsigned auto_increment comment 'ID'
+        primary key,
+    username    varchar(20)                  not null comment '用户名',
+    password    varchar(32) default '123456' null comment '密码',
+    name        varchar(10)                  not null comment '姓名',
+    gender      tinyint unsigned             not null comment '性别, 说明: 1 男, 2 女',
+    image       varchar(300)                 null comment '图像',
+    job         tinyint unsigned             null comment '职位, 说明: 1 班主任,2 讲师, 3 学工主管, 4 教研主管',
+    entrydate   date                         null comment '入职时间',
+    dept_id     int unsigned                 null comment '部门ID',
+    create_time datetime                     not null comment '创建时间',
+    update_time datetime                     not null comment '修改时间',
+    constraint username
+        unique (username)
+)
+    comment '员工表';
+-- ========================================基本查询==========================================
+-- DML:数据操作语言
+-- DML : 插入数据 - insert
+-- 1. 为 tb_emp 表的 username, name, gender 字段插入值
+insert into tb_emp (username,name,gender,create_time,update_time)
+values('wuji','张无忌1',1,now(),now());
+
+-- 2. 为 tb_emp 表的 所有字段插入值
+insert into tb_emp values
+    (null,'zs','123','张三',1
+    ,'1.png',1,'2015-01-01',1,now(),now());
+
+insert into tb_emp
+(id, username, password, name, gender, image, job, entrydate, dept_id, create_time, update_time)
+values
+    (null,'zs1','1234','张三1',1
+    ,'1.png',1,'2015-01-01',1,now(),now());
+
+-- 3. 批量为 为 tb_emp 表的 username , name , gender 字段插入数据
+insert into tb_emp
+(username,name,gender,create_time,update_time)
+values
+    ('wuji2','张无忌2',1,now(),now()),
+    ('wuji3','张无忌3',1,now(),now()),
+    ('wuji4','张无忌4',1,now(),now())
+;
+
+-- DML : 更新数据 - update
+-- 1. 将 tb_emp 表的ID为1员工 姓名name字段更新为 '张四'
+update tb_emp set name = '张四' where id = 1;
+update tb_emp set name = '张四' ;
+-- 2. 将 tb_emp 表的所有员工的入职日期更新为 '2010-01-01'
+update tb_emp set entrydate='2010-01-01',update_time=now();
+
+
+-- DML : 删除数据 - delete
+-- 1. 删除 tb_emp 表中 ID为1的员工
+delete from tb_emp where id = 1;
+
+-- 2. 删除 tb_emp 表中的所有员工
+delete from tb_emp;
+
+-- ======================================DQL===================================
+-- 基本查询
+-- 1. 查询指定字段 name,entrydate 并返回
+select name,entrydate from tb_emp;
+
+-- 2. 查询返回所有字段
+-- 方式一:  推荐 , 效率高 . 更直观
+select  id, username, password, name, gender,
+        image, job, entrydate, dept_id,
+        create_time, update_time from tb_emp;
+
+-- 方式二:不推荐（不直观，性能低）
+select * from tb_emp;
+
+-- 3. 查询所有员工的 name,entrydate, 并起别名(姓名、入职日期)  --- as 关键字可以省略
+select name as '姓名',entrydate as '入职日期' from tb_emp;
+
+select name  '姓名',entrydate  '入职日期' from tb_emp;
+
+-- 4. 查询员工有哪几种职位(不要重复) -- distinct
+select distinct job from tb_emp;
+
+

mysql-day02-DQL.sql

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+-- ===========================条件查询=======================
+-- 数据准备
+-- 员工管理(带约束)
+create table tb_emp (
+                        id int unsigned primary key auto_increment comment 'ID',
+                        username varchar(20) not null unique comment '用户名',
+                        password varchar(32) default '123456' comment '密码',
+                        name varchar(10) not null comment '姓名',
+                        gender tinyint unsigned not null comment '性别, 说明: 1 男, 2 女',
+                        image varchar(300) comment '图像',
+                        job tinyint unsigned comment '职位, 说明: 1 班主任,2 讲师, 3 学工主管, 4 教研主管',
+                        entrydate date comment '入职时间',
+                        create_time datetime not null comment '创建时间',
+                        update_time datetime not null comment '修改时间'
+) comment '员工表';
+
+-- 准备测试数据
+INSERT INTO tb_emp (id, username, password, name, gender, image, job, entrydate, create_time, update_time)
+VALUES
+    (1, 'jinyong', '123456', '金庸', 1, '1.jpg', 4, '2000-01-01', '2022-10-27 16:35:33', '2022-10-27 16:35:35'),
+    (2, 'zhangwuji', '123456', '张无忌', 1, '2.jpg', 2, '2015-01-01', '2022-10-27 16:35:33', '2022-10-27 16:35:37'),
+    (3, 'yangxiao', '123456', '杨逍', 1, '3.jpg', 2, '2008-05-01', '2022-10-27 16:35:33', '2022-10-27 16:35:39'),
+    (4, 'weiyixiao', '123456', '韦一笑', 1, '4.jpg', 2, '2007-01-01', '2022-10-27 16:35:33', '2022-10-27 16:35:41'),
+    (5, 'changyuchun', '123456', '常遇春', 1, '5.jpg', 2, '2012-12-05', '2022-10-27 16:35:33', '2022-10-27 16:35:43'),
+    (6, 'xiaozhao', '123456', '小昭', 2, '6.jpg', 3, '2013-09-05', '2022-10-27 16:35:33', '2022-10-27 16:35:45'),
+    (7, 'jixiaofu', '123456', '纪晓芙', 2, '7.jpg', 1, '2005-08-01', '2022-10-27 16:35:33', '2022-10-27 16:35:47'),
+    (8, 'zhouzhiruo', '123456', '周芷若', 2, '8.jpg', 1, '2014-11-09', '2022-10-27 16:35:33', '2022-10-27 16:35:49'),
+    (9, 'dingminjun', '123456', '丁敏君', 2, '9.jpg', 1, '2011-03-11', '2022-10-27 16:35:33', '2022-10-27 16:35:51'),
+    (10, 'zhaomin', '123456', '赵敏', 2, '10.jpg', 1, '2013-09-05', '2022-10-27 16:35:33', '2022-10-27 16:35:53'),
+    (11, 'luzhangke', '123456', '鹿杖客', 1, '11.jpg', 2, '2007-02-01', '2022-10-27 16:35:33', '2022-10-27 16:35:55'),
+    (12, 'hebiweng', '123456', '鹤笔翁', 1, '12.jpg', 2, '2008-08-18', '2022-10-27 16:35:33', '2022-10-27 16:35:57'),
+    (13, 'fangdongbai', '123456', '方东白', 1, '13.jpg', 1, '2012-11-01', '2022-10-27 16:35:33', '2022-10-27 16:35:59'),
+    (14, 'zhangsanfeng', '123456', '张三丰', 1, '14.jpg', 2, '2002-08-01', '2022-10-27 16:35:33', '2022-10-27 16:36:01'),
+    (15, 'yulianzhou', '123456', '俞莲舟', 1, '15.jpg', 2, '2011-05-01', '2022-10-27 16:35:33', '2022-10-27 16:36:03'),
+    (16, 'songyuanqiao', '123456', '宋远桥', 1, '16.jpg', 2, '2010-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:05'),
+    (17, 'chenyouliang', '12345678', '陈友谅', 1, '17.jpg', null, '2015-03-21', '2022-10-27 16:35:33', '2022-10-27 16:36:07'),
+    (18, 'zhang1', '123456', '张一', 1, '2.jpg', 2, '2015-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:09'),
+    (19, 'zhang2', '123456', '张二', 1, '2.jpg', 2, '2012-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:11'),
+    (20, 'zhang3', '123456', '张三', 1, '2.jpg', 2, '2018-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:13'),
+    (21, 'zhang4', '123456', '张四', 1, '2.jpg', 2, '2015-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:15'),
+    (22, 'zhang5', '123456', '张五', 1, '2.jpg', 2, '2016-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:17'),
+    (23, 'zhang6', '123456', '张六', 1, '2.jpg', 2, '2012-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:19'),
+    (24, 'zhang7', '123456', '张七', 1, '2.jpg', 2, '2006-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:21'),
+    (25, 'zhang8', '123456', '张八', 1, '2.jpg', 2, '2002-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:23'),
+    (26, 'zhang9', '123456', '张九', 1, '2.jpg', 2, '2011-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:25'),
+    (27, 'zhang10', '123456', '张十', 1, '2.jpg', 2, '2004-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:27'),
+    (28, 'zhang11', '123456', '张十一', 1, '2.jpg', 2, '2007-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:29'),
+    (29, 'zhang12', '123456', '张十二', 1, '2.jpg', 2, '2020-01-01', '2022-10-27 16:35:33', '2022-10-27 16:36:31');
+
+-- 1. 查询 姓名 为 杨逍 的员工
+select * from tb_emp where name = '杨逍';
+
+-- 2. 查询在 id小于等于5 的员工信息
+select * from tb_emp where id <= 5;
+
+-- 3. 查询 没有分配职位 的员工信息  -- 判断 null , 用 is null
+select * from tb_emp where job is null;
+
+-- 4. 查询 有职位 的员工信息  -- 判断 不是null , 用 is not null
+select * from tb_emp where job is not null;
+
+-- 5. 查询 密码不等于 '123456' 的员工信息
+select * from tb_emp where password != '123456';
+select * from tb_emp where password <> '123456';
+
+-- 6. 查询入职日期 在 '2000-01-01' (包含) 到 '2010-01-01'(包含) 之间的员工信息
+select * from tb_emp where entrydate >= '2000-01-01' and entrydate <= '2010-01-01';
+select * from tb_emp where entrydate between '2000-01-01' and '2010-01-01';
+
+-- 7. 查询 入职时间 在 '2000-01-01' (包含) 到 '2010-01-01'(包含) 之间 且 性别为女 的员工信息
+select * from tb_emp where entrydate between '2000-01-01' and '2010-01-01' and gender = 2;
+
+-- 8. 查询 职位是 2 (讲师), 3 (学工主管), 4 (教研主管) 的员工信息
+select  * from tb_emp where job = 2 or job = 3 or job = 4;
+
+select  * from tb_emp where job in (2,3,4);
+
+-- 9. 查询姓名为两个字的员工信息 【_匹配一个字符  %匹配0或多个字符】
+select * from tb_emp where name like '__';
+
+-- 10. 查询姓 '张' 的员工信息
+select * from  tb_emp where name like '张%';
+
+-- 11. 查询姓名中包含 '三' 的员工信息
+select * from  tb_emp where name like '%三%';
+
+-- 练习 : 员工管理列表查询
+-- 条件 : name , gender , entrydate
+select * from tb_emp where name like '%张%'
+                       and gender = 1
+                       and entrydate between '2000-01-01' and '2010-01-01';
+
+-- 分组查询---聚合函数
+-- 1. 统计该企业员工数量 -- count
+-- count(字段)
+select count(id) from tb_emp;
+select count(name) from tb_emp;
+select count(job) from tb_emp; -- 注意：所有的聚合函数是排除null计算的！！！！
+
+select count(*) from tb_emp;
+
+select count(0) from tb_emp;-- 统计总数推荐count(0)
+
+-- 2. 统计该企业最早入职的员工的入职日期
+select min(entrydate) from tb_emp;
+
+-- 3. 统计该企业最近入职的员工的入职日期
+select max(entrydate) from tb_emp;
+
+-- 4. 统计该企业员工的 ID 之和
+select  sum(id) from tb_emp;
+
+-- 5. 统计该企业员工 ID 的平均值
+select  avg(id) from tb_emp;
+
+-- 6. 不用avg如何计算平均值
+select sum(id)/count(0) from tb_emp;
+
+-- 分组查询
+-- 1. 根据性别分组 , 统计男性和女性员工的数量  -- count(*)
+-- 注意：分组之后能查询的字段只能是分组字段或者聚合函数才有意义
+select  gender, count(1) from tb_emp group by gender;
+
+-- 2. 先查询入职时间在 '2015-01-01' (包含) 以前的员工 , 并对结果根据职位分组 , 获取员工数量大于等于2的职位 -- count
+
+select job,count(0) from tb_emp
+    where entrydate <= '2015-01-01'
+        group by job
+            having count(0)>= 2;

springboot-web-quickstart/.gitattributes

@@ -0,0 +1,2 @@
+/mvnw text eol=lf
+*.cmd text eol=crlf

springboot-web-quickstart/pom.xml

@@ -0,0 +1,63 @@
+<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <!--父工程是org.springframework.boot-->
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>4.1.1</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <!--当前项目maven坐标-->
+    <groupId>com.inmind</groupId>
+    <artifactId>springboot-web-quickstart</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <!--springboot相关配置-->
+    <name>springboot-web-quickstart</name>
+    <description>springboot-web-quickstart</description>
+    <url/>
+    <licenses>
+        <license/>
+    </licenses>
+    <developers>
+        <developer/>
+    </developers>
+    <scm>
+        <connection/>
+        <developerConnection/>
+        <tag/>
+        <url/>
+    </scm>
+    <!--pom文件中配置的统一版本配置信息-->
+    <properties>
+        <java.version>17</java.version>
+    </properties>
+
+    <!--依赖管理-->
+    <dependencies>
+        <!--springbootweb项目的起步依赖-->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-webmvc</artifactId>
+        </dependency>
+        <!--springbootweb项目的测试起步依赖-->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-webmvc-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <!--springboot-打包插件-->
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

springboot-web-quickstart/src/main/java/com/inmind/SpringbootWebQuickstartApplication.java

@@ -0,0 +1,15 @@
+package com.inmind;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+//springboot项目启动项，默认注解
+@SpringBootApplication
+public class SpringbootWebQuickstartApplication {
+
+    public static void main(String[] args) {
+        //springboot启动的固定代码
+        SpringApplication.run(SpringbootWebQuickstartApplication.class, args);
+    }
+
+}

springboot-web-quickstart/src/main/java/com/inmind/controller/HelloController.java

@@ -0,0 +1,15 @@
+package com.inmind.controller;
+
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+//标记当前类是一个请求处理类
+@RestController
+public class HelloController {
+
+    @RequestMapping(value = "/hello")
+    public String hello(){
+        System.out.println("接收了一个请求");
+        return "hello Springboot";
+    }
+}

springboot-web-quickstart/src/main/resources/application.properties

@@ -0,0 +1,2 @@
+spring.application.name=springboot-web-quickstart
+#server.port=8083

springboot-web-quickstart/src/main/resources/static/01. GET-POST.html

@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>请求方式演示-GET-POST</title>
+</head>
+<body>
+    <form action="" method="get">
+        姓 名: <input type="text" name="name"> <br>
+        密 码: <input type="password" name="password"><br>
+        <input type="submit" value="提交表单GET"><br>
+    </form>
+
+    <br><br><br>
+
+    <form action="" method="post">
+        姓 名: <input type="text" name="name"> <br>
+        密 码: <input type="password" name="password"><br>
+        <input type="submit" value="提交表单POST"><br>
+    </form>
+
+</body>
+</html>

springboot-web-quickstart/src/test/java/com/inmind/SpringbootWebQuickstartApplicationTests.java

@@ -0,0 +1,13 @@
+package com.inmind;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class SpringbootWebQuickstartApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}

springboot-web-req-resp/.gitignore

@@ -0,0 +1,33 @@
+HELP.md
+target/
+.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

springboot-web-req-resp/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,3 @@
+wrapperVersion=3.3.4
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.16/apache-maven-3.9.16-bin.zip

springboot-web-req-resp/pom.xml

@@ -0,0 +1,65 @@
+<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>4.1.1</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.inmind</groupId>
+    <artifactId>springboot-web-req-resp</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>springboot-web-req-resp</name>
+    <description>springboot-web-req-resp</description>
+    <url/>
+    <licenses>
+        <license/>
+    </licenses>
+    <developers>
+        <developer/>
+    </developers>
+    <scm>
+        <connection/>
+        <developerConnection/>
+        <tag/>
+        <url/>
+    </scm>
+    <properties>
+        <java.version>17</java.version>
+    </properties>
+    <!--依赖管理-->
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-webmvc</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-webmvc-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <!--XML解析依赖-->
+        <dependency>
+            <groupId>org.dom4j</groupId>
+            <artifactId>dom4j</artifactId>
+            <version>2.1.3</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

springboot-web-req-resp/src/main/java/com/inmind/SpringbootWebReqRespApplication.java

@@ -0,0 +1,13 @@
+package com.inmind;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringbootWebReqRespApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringbootWebReqRespApplication.class, args);
+    }
+
+}

springboot-web-req-resp/src/main/java/com/inmind/controller/EmpController.java

@@ -0,0 +1,31 @@
+package com.inmind.controller;
+
+import com.inmind.pojo.Emp;
+import com.inmind.pojo.Result;
+import com.inmind.service.EmpService;
+import com.inmind.service.impl.EmpServiceImplA;
+import com.inmind.utils.XmlParserUtils;
+import jakarta.annotation.Resource;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController//底层带有@Controller，本身是交给IOC容器管理
+public class EmpController {
+    //设置一个员工业务对象
+    @Autowired//运行时，IOC容器会提供该类型的bean对象，并赋值给该变量----依赖注入
+    @Qualifier("empServiceImplA") //优先级更高，比@Primary，优先级高
+    //@Resource(name = "empServiceImplB")//jdk提供的注解，不用
+    private EmpService empService ;
+
+    @RequestMapping("/listEmp")
+    public Result listEmp(){
+        //1.获取请求数据，交给业务层处理
+        List<Emp> emps = empService.listEmp();
+        //2.响应处理好的数据
+        return Result.success(emps);
+    }
+}

springboot-web-req-resp/src/main/java/com/inmind/controller/RequestController.java

@@ -0,0 +1,84 @@
+package com.inmind.controller;
+
+import com.inmind.pojo.User;
+import jakarta.servlet.http.HttpServletRequest;
+import org.springframework.format.annotation.DateTimeFormat;
+import org.springframework.web.bind.annotation.*;
+
+import java.time.LocalDateTime;
+import java.util.Arrays;
+import java.util.List;
+
+@RestController
+public class RequestController {
+
+    //原始方式接收请求数据
+    /*@RequestMapping( "/simpleParam")
+    public String simpleParam(HttpServletRequest request){
+        //获取请求参数
+        String name = request.getParameter("name");
+        String ageStr = request.getParameter("age");
+        //手动的数据类型转换
+        int age = Integer.parseInt(ageStr);
+        System.out.println("name:"+name+",age:"+age);
+        return "OK";
+    }*/
+
+
+    //springboot方式获取请求参数(简单参数)
+
+    @RequestMapping( "/simpleParam")
+    //@RequestParam(name = "name" ) 的作用是从请求对象中获取name属性值，将值赋给username变量
+    public String simpleParam(@RequestParam(name = "name",required = false ) String username, Integer age){
+        System.out.println("name:"+username+",age:"+age);
+        return "OK";
+    }
+
+    //实体参数
+    @RequestMapping( "/simplePojo")
+    public String simplePojo(User user){
+        System.out.println(user);
+        System.out.println("name:"+user.getName()+",age:"+user.getAge());
+        System.out.println("address:"+user.getAddress());
+        return "OK";
+    }
+
+    //数组参数
+    @RequestMapping( "/arrayParam")
+    public String arrayParam(String[] hobby){
+        System.out.println(Arrays.toString(hobby));
+        return "OK";
+    }
+
+    //集合参数
+    @RequestMapping( "/listParam")
+    public String listParam(@RequestParam List<String> hobby){//由于默认采用数组参数直接获取，使用list接收，会报错，需要使用@RequestParam注解
+        System.out.println(hobby);
+        return "OK";
+    }
+
+    //日期参数
+    @RequestMapping( "/dateParam")
+    public String dateParam(@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") LocalDateTime updateTime){//由于前端的时间格式的多样性，一般前后端约定固定格式，如yyyy-MM-dd HH:mm:ss，所以这里要用一个注解
+        System.out.println(updateTime);
+        return "OK";
+    }
+
+    //json参数
+    @RequestMapping( "/jsonParam")
+    //@RequestBody: 将请求体中的json数据，映射为java对象
+    public String jsonParam(@RequestBody User user){
+        System.out.println(user);
+        return "OK";
+    }
+
+    //路径参数
+    @RequestMapping( "/path/{id}/{name}")
+    //@PathVariable: 将路径参数映射为方法参数
+    public String pathParam(@PathVariable Integer id,@PathVariable String name){
+        System.out.println("id:"+id);
+        System.out.println("name:"+name);
+        return "OK";
+    }
+
+}

springboot-web-req-resp/src/main/java/com/inmind/controller/ResponseController.java

@@ -0,0 +1,35 @@
+package com.inmind.controller;
+
+import com.inmind.pojo.Address;
+import com.inmind.pojo.Result;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@RestController
+public class ResponseController {
+
+    @RequestMapping("/hello")
+    public Result hello(){
+        System.out.println("hello world");
+        return Result.success("hello world");
+    }
+
+    @RequestMapping("/getAddr")
+    public Result getAddr(){
+        Address address = new Address();
+        address.setCity("常州");
+        address.setProvince("江苏");
+        return Result.success(address);
+    }
+
+    @RequestMapping("/listAddr")
+    public Result listAddr(){
+        ArrayList<Address> list = new ArrayList<>();
+        list.add(new Address("江苏", "常州"));
+        list.add(new Address("浙江", "杭州"));
+        return Result.success(list);
+    }
+}

springboot-web-req-resp/src/main/java/com/inmind/dao/EmpDao.java

@@ -0,0 +1,9 @@
+package com.inmind.dao;
+
+import com.inmind.pojo.Emp;
+
+import java.util.List;
+//定义一个获取员工数据的规范
+public interface EmpDao {
+    List<Emp> listEmp();
+}

springboot-web-req-resp/src/main/java/com/inmind/dao/impl/EmpDaoImplA.java

@@ -0,0 +1,19 @@
+package com.inmind.dao.impl;
+
+import com.inmind.dao.EmpDao;
+import com.inmind.pojo.Emp;
+import com.inmind.utils.XmlParserUtils;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Repository//将当前类交给IOC容器管理，让它称为IOC容器中的bean对象---IOC控制反转
+public class EmpDaoImplA implements EmpDao {
+    @Override
+    public List<Emp> listEmp() {
+        //1.加载并解析emp.xml数据
+        String file = this.getClass().getClassLoader().getResource("emp.xml").getFile();
+        List<Emp> emps = XmlParserUtils.parse(file, Emp.class);
+        return emps;
+    }
+}

springboot-web-req-resp/src/main/java/com/inmind/pojo/Address.java

@@ -0,0 +1,39 @@
+package com.inmind.pojo;
+
+public class Address {
+    private String province;
+    private String city;
+
+
+    public Address() {
+    }
+
+    public Address(String province, String city) {
+        this.province = province;
+        this.city = city;
+    }
+
+    public String getProvince() {
+        return province;
+    }
+
+    public void setProvince(String province) {
+        this.province = province;
+    }
+
+    public String getCity() {
+        return city;
+    }
+
+    public void setCity(String city) {
+        this.city = city;
+    }
+
+    @Override
+    public String toString() {
+        return "Address{" +
+                "province='" + province + '\'' +
+                ", city='" + city + '\'' +
+                '}';
+    }
+}

springboot-web-req-resp/src/main/java/com/inmind/pojo/Emp.java

@@ -0,0 +1,71 @@
+package com.inmind.pojo;
+
+public class Emp {
+    private String name;
+    private Integer age;
+    private String image;
+    private String gender;
+    private String job;
+
+    public Emp() {
+    }
+
+    public Emp(String name, Integer age, String image, String gender, String job) {
+        this.name = name;
+        this.age = age;
+        this.image = image;
+        this.gender = gender;
+        this.job = job;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+
+    public String getImage() {
+        return image;
+    }
+
+    public void setImage(String image) {
+        this.image = image;
+    }
+
+    public String getGender() {
+        return gender;
+    }
+
+    public void setGender(String gender) {
+        this.gender = gender;
+    }
+
+    public String getJob() {
+        return job;
+    }
+
+    public void setJob(String job) {
+        this.job = job;
+    }
+
+    @Override
+    public String toString() {
+        return "Emp{" +
+                "name='" + name + '\'' +
+                ", age=" + age +
+                ", image='" + image + '\'' +
+                ", gender='" + gender + '\'' +
+                ", job='" + job + '\'' +
+                '}';
+    }
+}

springboot-web-req-resp/src/main/java/com/inmind/pojo/Result.java

@@ -0,0 +1,55 @@
+package com.inmind.pojo;
+
+/**
+ * 统一响应结果封装类
+ */
+public class Result {
+    private Integer code ;//1 成功 , 0 失败
+    private String msg; //提示信息
+    private Object data; //数据 date
+
+    public Result() {
+    }
+    public Result(Integer code, String msg, Object data) {
+        this.code = code;
+        this.msg = msg;
+        this.data = data;
+    }
+    public Integer getCode() {
+        return code;
+    }
+    public void setCode(Integer code) {
+        this.code = code;
+    }
+    public String getMsg() {
+        return msg;
+    }
+    public void setMsg(String msg) {
+        this.msg = msg;
+    }
+    public Object getData() {
+        return data;
+    }
+    public void setData(Object data) {
+        this.data = data;
+    }
+
+    public static Result success(Object data){
+        return new Result(1, "success", data);
+    }
+    public static Result success(){
+        return new Result(1, "success", null);
+    }
+    public static Result error(String msg){
+        return new Result(0, msg, null);
+    }
+
+    @Override
+    public String toString() {
+        return "Result{" +
+                "code=" + code +
+                ", msg='" + msg + '\'' +
+                ", data=" + data +
+                '}';
+    }
+}

springboot-web-req-resp/src/main/java/com/inmind/pojo/User.java

@@ -0,0 +1,50 @@
+package com.inmind.pojo;
+
+public class User {
+    private String name;
+    private Integer age;
+
+    private Address address;
+
+    public User() {
+    }
+
+    public User(String name, Integer age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+
+    @Override
+    public String toString() {
+        return "User{" +
+                "name='" + name + '\'' +
+                ", age=" + age +
+                ", address=" + address +
+                '}';
+    }
+
+    public Address getAddress() {
+        return address;
+    }
+
+    public void setAddress(Address address) {
+        this.address = address;
+    }
+
+}

springboot-web-req-resp/src/main/java/com/inmind/service/EmpService.java

@@ -0,0 +1,10 @@
+package com.inmind.service;
+
+import com.inmind.pojo.Emp;
+
+import java.util.List;
+
+//业务层操作，对数据进行逻辑处理，返回处理后的数据
+public interface EmpService {
+    List<Emp> listEmp();
+}

springboot-web-req-resp/src/main/java/com/inmind/service/impl/EmpServiceImplA.java

@@ -0,0 +1,47 @@
+package com.inmind.service.impl;
+
+import com.inmind.dao.EmpDao;
+import com.inmind.pojo.Emp;
+import com.inmind.service.EmpService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Primary;
+import org.springframework.stereotype.Component;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+@Primary  //当DI依赖注入EmpService的变量时，优先使用当前实现类
+@Service //将当前类交给IOC容器管理，让它称为IOC容器中的bean对象---IOC控制反转
+public class EmpServiceImplA implements EmpService {
+    //设置一个dao的成员变量
+    @Autowired//运行时，IOC容器会提供该类型的bean对象，并赋值给该变量----依赖注入
+    private EmpDao empDao ;
+
+    @Override
+    public List<Emp> listEmp() {
+        //调用dao层的功能，获取员工信息即可
+        List<Emp> emps = empDao.listEmp();
+
+        //逻辑处理
+        //2.对数据进行处理优化(处理性别，处理职位)
+        emps.stream().forEach(emp -> {
+            String gender = emp.getGender();
+            //处理 gender 1：男  2：女
+            if (gender.equals("1")) {
+                emp.setGender("男");
+            } else {
+                emp.setGender("女");
+            }
+
+            //处理job- 1：讲师  2：班主任  3：就业指导
+            String job = emp.getJob();
+            if ("1".equals(job)) {
+                emp.setJob("讲师");
+            } else if ("2".equals(job)) {
+                emp.setJob("班主任");
+            }else if ("3".equals(job)) {
+                emp.setJob("就业指导");
+            }
+        });
+        return emps;
+    }
+}

springboot-web-req-resp/src/main/java/com/inmind/service/impl/EmpServiceImplB.java

@@ -0,0 +1,45 @@
+package com.inmind.service.impl;
+
+import com.inmind.dao.EmpDao;
+import com.inmind.pojo.Emp;
+import com.inmind.service.EmpService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service //将当前类交给IOC容器管理，让它称为IOC容器中的bean对象---IOC控制反转
+public class EmpServiceImplB implements EmpService {
+    //设置一个dao的成员变量
+    @Autowired//运行时，IOC容器会提供该类型的bean对象，并赋值给该变量----依赖注入
+    private EmpDao empDao ;
+
+    @Override
+    public List<Emp> listEmp() {
+        //调用dao层的功能，获取员工信息即可
+        List<Emp> emps = empDao.listEmp();
+
+        //逻辑处理
+        //2.对数据进行处理优化(处理性别，处理职位)
+        emps.stream().forEach(emp -> {
+            String gender = emp.getGender();
+            //处理 gender 1：男  2：女
+            if (gender.equals("1")) {
+                emp.setGender("男士");
+            } else {
+                emp.setGender("女士");
+            }
+
+            //处理job- 1：讲师  2：班主任  3：就业指导
+            String job = emp.getJob();
+            if ("1".equals(job)) {
+                emp.setJob("讲师");
+            } else if ("2".equals(job)) {
+                emp.setJob("班主任");
+            }else if ("3".equals(job)) {
+                emp.setJob("就业指导");
+            }
+        });
+        return emps;
+    }
+}

springboot-web-req-resp/src/main/java/com/inmind/utils/XmlParserUtils.java

@@ -0,0 +1,52 @@
+package com.inmind.utils;
+
+import org.dom4j.Document;
+import org.dom4j.Element;
+import org.dom4j.io.SAXReader;
+import java.io.File;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+
+public class XmlParserUtils {
+
+    public static <T> List<T> parse(String file , Class<T> targetClass)  {
+        ArrayList<T> list = new ArrayList<T>(); //封装解析出来的数据
+        try {
+            //1.获取一个解析器对象
+            SAXReader saxReader = new SAXReader();
+            //2.利用解析器把xml文件加载到内存中,并返回一个文档对象
+            Document document = saxReader.read(new File(file));
+            //3.获取到根标签
+            Element rootElement = document.getRootElement();
+            //4.通过根标签来获取 user 标签
+            List<Element> elements = rootElement.elements("emp");
+
+            //5.遍历集合,得到每一个 user 标签
+            for (Element element : elements) {
+                //获取 name 属性
+                String name = element.element("name").getText();
+                //获取 age 属性
+                String age = element.element("age").getText();
+                //获取 image 属性
+                String image = element.element("image").getText();
+                //获取 gender 属性
+                String gender = element.element("gender").getText();
+                //获取 job 属性
+                String job = element.element("job").getText();
+
+                //组装数据
+                Constructor<T> constructor = targetClass.getDeclaredConstructor(String.class, Integer.class, String.class, String.class, String.class);
+                constructor.setAccessible(true);
+                T object = constructor.newInstance(name, Integer.parseInt(age), image, gender, job);
+
+                list.add(object);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return list;
+    }
+
+}

springboot-web-req-resp/src/main/resources/application.properties

@@ -0,0 +1 @@
+spring.application.name=springboot-web-req-resp

springboot-web-req-resp/src/main/resources/emp.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<emps>
+    <emp>
+        <name>金毛狮王111</name>
+        <age>55</age>
+        <image>https://inmind-test.oss-cn-shanghai.aliyuncs.com/01878908-cdaf-4df9-b2b0-e09299da5cc3.jpg</image>
+        <!-- 1: 男, 2: 女 -->
+        <gender>1</gender>
+        <!-- 1: 讲师, 2: 班主任 , 3: 就业指导 -->
+        <job>1</job>
+    </emp>
+
+    <emp>
+        <name>白眉鹰王</name>
+        <age>65</age>
+        <image>https://inmind-test.oss-cn-shanghai.aliyuncs.com/01878908-cdaf-4df9-b2b0-e09299da5cc3.jpg</image>
+        <gender>1</gender>
+        <job>1</job>
+    </emp>
+
+    <emp>
+        <name>青翼蝠王</name>
+        <age>45</age>
+        <image>https://inmind-test.oss-cn-shanghai.aliyuncs.com/01878908-cdaf-4df9-b2b0-e09299da5cc3.jpg</image>
+        <gender>1</gender>
+        <job>2</job>
+    </emp>
+
+    <emp>
+        <name>紫衫龙王</name>
+        <age>38</age>
+        <image>https://inmind-test.oss-cn-shanghai.aliyuncs.com/01878908-cdaf-4df9-b2b0-e09299da5cc3.jpg</image>
+        <gender>2</gender>
+        <job>3</job>
+    </emp>
+</emps>

springboot-web-req-resp/src/main/resources/static/emp.html

@@ -0,0 +1,60 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>员工信息</title>
+</head>
+
+<link rel="stylesheet" href="element-ui/index.css">
+<script src="./js/vue.js"></script>
+<script src="./element-ui/index.js"></script>
+<script src="./js/axios-0.18.0.js"></script>
+
+<body>
+    <h1 align="center">员工信息列表展示</h1>
+    <div id="app">
+        <el-table :data="tableData" style="width: 100%"  stripe border >
+            <el-table-column prop="name" label="姓名" align="center" min-width="20%"></el-table-column>
+            <el-table-column prop="age" label="年龄" align="center" min-width="20%"></el-table-column>
+            <el-table-column label="图像" align="center"  min-width="20%">
+                <template slot-scope="scope">
+                    <el-image :src="scope.row.image" style="width: 80px; height: 50px;"></el-image>
+                </template>
+            </el-table-column>
+            <el-table-column prop="gender" label="性别" align="center"  min-width="20%"></el-table-column>
+            <el-table-column prop="job" label="职位" align="center"  min-width="20%"></el-table-column>
+        </el-table>
+    </div>
+</body>
+
+<style>
+    .el-table .warning-row {
+        background: oldlace;
+    }
+    .el-table .success-row {
+        background: #f0f9eb;
+    }
+</style>
+
+<script>
+    new Vue({
+        el: "#app",
+        data() {
+            return {
+                tableData: []
+            }
+        },
+        mounted(){
+            axios.get('/listEmp').then(res=>{
+                if(res.data.code){
+                    this.tableData = res.data.data;
+                }
+            });
+        },
+        methods: {
+        }
+    });
+</script>
+</html>

springboot-web-req-resp/src/test/java/com/inmind/SpringbootWebReqRespApplicationTests.java

@@ -0,0 +1,13 @@
+package com.inmind;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class SpringbootWebReqRespApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}