日考

.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/

pom.xml

@@ -0,0 +1,138 @@
+<?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>
+    <groupId>com.bwie</groupId>
+    <artifactId>day10exam</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>day10exam</name>
+    <description>day10exam</description>
+    <properties>
+        <java.version>1.8</java.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <spring-boot.version>2.6.13</spring-boot.version>
+    </properties>
+    <dependencies>
+        <!--activiti 工作流依赖-->
+        <dependency>
+            <groupId>org.activiti</groupId>
+            <artifactId>activiti-spring-boot-starter</artifactId>
+            <version>7.0.0.Beta2</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>javax.el</groupId>
+                    <artifactId>el-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>de.odysseus.juel</groupId>
+                    <artifactId>juel-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>de.odysseus.juel</groupId>
+                    <artifactId>juel-spi</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+
+        <!-- 添加servlet依赖模块 -->
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+            <scope>provided</scope>
+        </dependency>
+        <!-- 添加jstl标签库依赖模块 -->
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>jstl</artifactId>
+        </dependency>
+        <!--添加tomcat依赖模块.-->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-tomcat</artifactId>
+            <scope>provided</scope>
+        </dependency>
+        <!-- 使用jsp引擎，springboot内置tomcat没有此依赖 -->
+        <dependency>
+            <groupId>org.apache.tomcat.embed</groupId>
+            <artifactId>tomcat-embed-jasper</artifactId>
+        </dependency>
+        <!-- 热部署依赖 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
+            <scope>runtime</scope>
+            <optional>true</optional>
+        </dependency>
+        <!-- mysql数据库依赖 -->
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>5.1.29</version>
+            <scope>runtime</scope>
+        </dependency>
+        <!--    lombok小辣椒依赖    -->
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+
+        <!-- 测试类依赖 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.junit.vintage</groupId>
+                    <artifactId>junit-vintage-engine</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+    </dependencies>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>${spring-boot.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                    <encoding>UTF-8</encoding>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>${spring-boot.version}</version>
+                <configuration>
+                    <mainClass>com.bwie.day10exam.Day10examApplication</mainClass>
+                    <skip>true</skip>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>repackage</id>
+                        <goals>
+                            <goal>repackage</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

sql/7.29exam.sql

@@ -0,0 +1,45 @@
+/*
+ Navicat Premium Data Transfer
+
+ Source Server         : 2111
+ Source Server Type    : MySQL
+ Source Server Version : 50557
+ Source Host           : localhost:3306
+ Source Schema         : 7.29exam
+
+ Target Server Type    : MySQL
+ Target Server Version : 50557
+ File Encoding         : 65001
+
+ Date: 29/07/2024 09:09:49
+*/
+
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ----------------------------
+-- Table structure for t_user
+-- ----------------------------
+DROP TABLE IF EXISTS `t_user`;
+CREATE TABLE `t_user`  (
+  `uid` int(11) NOT NULL AUTO_INCREMENT,
+  `username` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `pwd` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `age` int(11) NULL DEFAULT NULL,
+  `brithday` date NULL DEFAULT NULL,
+  PRIMARY KEY (`uid`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 9 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Compact;
+
+-- ----------------------------
+-- Records of t_user
+-- ----------------------------
+INSERT INTO `t_user` VALUES (1, '张三', '123', 19, '2005-01-01');
+INSERT INTO `t_user` VALUES (2, '李四', '234', 20, '2004-06-09');
+INSERT INTO `t_user` VALUES (3, '王五', '345', 19, '2005-11-10');
+INSERT INTO `t_user` VALUES (4, '赵六', '456', 20, '2004-05-10');
+INSERT INTO `t_user` VALUES (5, 'root', '567', 21, '2003-01-09');
+INSERT INTO `t_user` VALUES (6, 'lisa', '678', 22, '2002-06-10');
+INSERT INTO `t_user` VALUES (7, 'jack', '789', 19, '2005-09-19');
+INSERT INTO `t_user` VALUES (8, 'tom', '890', 18, '2006-09-10');
+
+SET FOREIGN_KEY_CHECKS = 1;

src/main/java/com/bwie/day10exam/Day10examApplication.java

@@ -0,0 +1,15 @@
+package com.bwie.day10exam;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.web.bind.annotation.Mapping;
+
+
+@SpringBootApplication
+public class Day10examApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Day10examApplication.class, args);
+    }
+
+}

src/main/java/com/bwie/day10exam/controller/UserController.java

@@ -0,0 +1,41 @@
+package com.bwie.day10exam.controller;
+
+import com.bwie.day10exam.pojo.User;
+import com.bwie.day10exam.serveice.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * @Author:LiDongJia
+ * @Package:com.bwie.day10exam.controller
+ * @Project:day10exam
+ * @name:UserController
+ * @Date:2024/7/29 上午8:52
+ */
+@RestController
+@RequestMapping("user")
+public class UserController {
+
+    @Autowired
+    private UserService userService;
+
+    @GetMapping("findAll")
+    public List<User> findAll(){
+        List<User> list = userService.findAll();
+        return list;
+    }
+
+    @PostMapping("delete")
+    public int delete(@RequestParam Integer uid){
+        int res = userService.delete(uid);
+        return res;
+    }
+
+    @GetMapping("sortList")
+    public List<User> sortList(){
+        List<User> list = userService.sortList();
+        return list;
+    }
+}

src/main/java/com/bwie/day10exam/mapper/UserMapper.java

@@ -0,0 +1,23 @@
+package com.bwie.day10exam.mapper;
+
+import com.bwie.day10exam.pojo.User;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+
+/**
+ * @Author:LiDongJia
+ * @Package:com.bwie.day10exam.mapper
+ * @Project:day10exam
+ * @name:UserMapper
+ * @Date:2024/7/29 上午8:54
+ */
+@Mapper
+public interface UserMapper {
+    List<User> findAll();
+
+    int delete(@Param("uid") Integer uid);
+
+    List<User> sortList();
+}

src/main/java/com/bwie/day10exam/pojo/User.java

@@ -0,0 +1,21 @@
+package com.bwie.day10exam.pojo;
+
+import lombok.Data;
+
+import java.util.Date;
+
+/**
+ * @Author:LiDongJia
+ * @Package:com.bwie.day10exam.pojo
+ * @Project:day10exam
+ * @name:User
+ * @Date:2024/7/29 上午8:50
+ */
+@Data
+public class User {
+    private Integer uid;
+    private String username;
+    private String pwd;
+    private Integer age;
+    private Date brithday;
+}

src/main/java/com/bwie/day10exam/serveice/UserService.java

@@ -0,0 +1,20 @@
+package com.bwie.day10exam.serveice;
+
+import com.bwie.day10exam.pojo.User;
+
+import java.util.List;
+
+/**
+ * @Author:LiDongJia
+ * @Package:com.bwie.day10exam.serveice
+ * @Project:day10exam
+ * @name:UserService
+ * @Date:2024/7/29 上午8:54
+ */
+public interface UserService {
+    List<User> findAll();
+
+    int delete(Integer uid);
+
+    List<User> sortList();
+}

src/main/java/com/bwie/day10exam/serveice/impl/UserServiceImpl.java

@@ -0,0 +1,38 @@
+package com.bwie.day10exam.serveice.impl;
+
+import com.bwie.day10exam.mapper.UserMapper;
+import com.bwie.day10exam.pojo.User;
+import com.bwie.day10exam.serveice.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+/**
+ * @Author:LiDongJia
+ * @Package:com.bwie.day10exam.serveice.impl
+ * @Project:day10exam
+ * @name:UserServiceImpl
+ * @Date:2024/7/29 上午8:54
+ */
+@Service
+public class UserServiceImpl implements UserService {
+
+    @Autowired
+    private UserMapper userMapper;
+
+    @Override
+    public List<User> findAll() {
+        return userMapper.findAll();
+    }
+
+    @Override
+    public int delete(Integer uid) {
+        return userMapper.delete(uid);
+    }
+
+    @Override
+    public List<User> sortList() {
+        return userMapper.sortList();
+    }
+}

src/main/resources/application.properties

@@ -0,0 +1,39 @@
+# 应用名称
+spring.application.name=boot-ssm02
+
+# 应用服务 WEB 访问端口
+server.port=8080
+
+
+
+#下面这些内容是为了让MyBatis映射
+#指定Mybatis的Mapper文件
+mybatis.mapper-locations=classpath:mapper/*xml
+#指定Mybatis的实体目录  entity  bean  dto pojo vo
+mybatis.type-aliases-package=com.bwie.day10exam.pojo
+# 驼峰配置
+mybatis.configuration.map-underscore-to-camel-case=true
+
+# 日志
+logging.level.com.bwie.dao = debug
+
+# 数据库驱动：
+spring.datasource.driver-class-name=com.mysql.jdbc.Driver
+# 数据源名称
+spring.datasource.name=defaultDataSource
+# 数据库连接地址
+spring.datasource.url=jdbc:mysql://localhost:3306/7.29exam?useUnicode=true&characterEncoding=utf8&allowMultiQueries=true
+# 数据库用户名&密码：
+spring.datasource.username=root
+spring.datasource.password=root
+
+# 视图解析器
+spring.mvc.view.prefix=/WEB-INF/view/
+spring.mvc.view.suffix=.jsp
+
+# pageHelper插件
+# 分页合理化
+pagehelper.reasonable=true
+# 分页自动转换方言。。。不同的数据库 分页的语句是不同的  mysql--limit  oracle--rownum
+pagehelper.auto-dialect=true
+

src/main/resources/mapper/UserMapper.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.bwie.day10exam.mapper.UserMapper">
+    <delete id="delete">
+        delete
+        from t_user
+        where uid=#{uid};
+    </delete>
+
+
+    <select id="findAll" resultType="com.bwie.day10exam.pojo.User">
+        select *
+        from t_user;
+    </select>
+
+    <select id="sortList" resultType="com.bwie.day10exam.pojo.User">
+        select *
+        from t_user order by age desc limit 12
+    </select>
+</mapper>

src/test/java/com/bwie/day10exam/Day10examApplicationTests.java

@@ -0,0 +1,13 @@
+package com.bwie.day10exam;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class Day10examApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}