提交

.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/

crowdfunding_system.sql

@@ -0,0 +1,74 @@
+/*
+ Navicat Premium Data Transfer
+
+ Source Server         : test
+ Source Server Type    : MySQL
+ Source Server Version : 80026 (8.0.26)
+ Source Host           : localhost:3306
+ Source Schema         : crowdfunding_system
+
+ Target Server Type    : MySQL
+ Target Server Version : 80026 (8.0.26)
+ File Encoding         : 65001
+
+ Date: 20/12/2024 15:52:53
+*/
+
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ----------------------------
+-- Table structure for crowdfundinginfo
+-- ----------------------------
+DROP TABLE IF EXISTS `crowdfundinginfo`;
+CREATE TABLE `crowdfundinginfo`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `title` varchar(25) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,
+  `target_number` int NOT NULL,
+  `now_number` int NOT NULL,
+  `status` int NOT NULL,
+  PRIMARY KEY (`id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of crowdfundinginfo
+-- ----------------------------
+INSERT INTO `crowdfundinginfo` VALUES (1, '请给我钱', 100, 5, 1);
+
+-- ----------------------------
+-- Table structure for participants
+-- ----------------------------
+DROP TABLE IF EXISTS `participants`;
+CREATE TABLE `participants`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `jwcode` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,
+  `identity` int NOT NULL,
+  `creat_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 7 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of participants
+-- ----------------------------
+INSERT INTO `participants` VALUES (6, '10052', 0, '2024-12-20 14:59:29');
+
+-- ----------------------------
+-- Table structure for participants_del_save
+-- ----------------------------
+DROP TABLE IF EXISTS `participants_del_save`;
+CREATE TABLE `participants_del_save`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `jwcode` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,
+  `identity` int NOT NULL,
+  `creat_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 8 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of participants_del_save
+-- ----------------------------
+INSERT INTO `participants_del_save` VALUES (5, '10012', 1, '2024-12-20 14:59:42');
+INSERT INTO `participants_del_save` VALUES (6, '10010', 1, '2024-12-20 15:00:48');
+INSERT INTO `participants_del_save` VALUES (7, '10011', 1, '2024-12-20 15:24:18');
+
+SET FOREIGN_KEY_CHECKS = 1;

pom.xml

@@ -0,0 +1,93 @@
+<?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.lh</groupId>
+    <artifactId>crowdfunding_system</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>crowdfunding_system</name>
+    <description>Demo project for Spring Boot</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>2.4.2</spring-boot.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.mybatis.spring.boot</groupId>
+            <artifactId>mybatis-spring-boot-starter</artifactId>
+            <version>2.1.4</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
+            <scope>runtime</scope>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>runtime</scope>
+        </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.lh.CrowdfundingSystemApplication</mainClass>
+                    <skip>true</skip>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>repackage</id>
+                        <goals>
+                            <goal>repackage</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

src/main/java/com/lh/CrowdfundingSystemApplication.java

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+package com.lh;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+@MapperScan(basePackages = "com.lh.mapper")
+@SpringBootApplication
+public class CrowdfundingSystemApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(CrowdfundingSystemApplication.class, args);
+    }
+
+}

src/main/java/com/lh/bean/CrowdfundingInfo.java

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+package com.lh.bean;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+import java.util.List;
+
+@NoArgsConstructor
+@AllArgsConstructor
+@Data
+public class CrowdfundingInfo implements Serializable {
+    private Integer id;
+
+    private String title;
+
+    private Integer targetNumber;
+
+    private Integer nowNumber;
+
+    private Integer status;
+
+    private List<Participant> participantList;
+
+
+}

src/main/java/com/lh/bean/Participant.java

@@ -0,0 +1,23 @@
+package com.lh.bean;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+import java.util.Date;
+
+@AllArgsConstructor
+@NoArgsConstructor
+@Data
+public class Participant implements Serializable {
+
+    private Integer id;
+
+    private String jwcode;
+
+    private Integer identity;
+
+    private Date creatTime;
+
+}

src/main/java/com/lh/bean/RespBean.java

@@ -0,0 +1,82 @@
+package com.lh.bean;
+
+public class RespBean {
+    //状态码 10000-成功 10001-失败
+    private Integer code;
+    //返回的附件信息
+    private String msg;
+    //返回的数据
+    private Object 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 RespBean ok() {
+        RespBean respBean = new RespBean();
+        respBean.setCode(10000);
+
+        return respBean;
+    }
+
+    public static RespBean ok(String msg) {
+        RespBean respBean = new RespBean();
+        respBean.setCode(10000);
+        respBean.setMsg(msg);
+
+        return respBean;
+    }
+
+    public static RespBean ok(String msg, Object data) {
+        RespBean respBean = new RespBean();
+        respBean.setCode(10000);
+        respBean.setMsg(msg);
+        respBean.setData(data);
+
+        return respBean;
+    }
+
+    public static RespBean error() {
+        RespBean respBean = new RespBean();
+        respBean.setCode(10001);
+
+        return respBean;
+    }
+
+    public static RespBean error(String msg) {
+        RespBean respBean = new RespBean();
+        respBean.setCode(10001);
+        respBean.setMsg(msg);
+
+        return respBean;
+    }
+
+    public static RespBean error(String msg, Object data) {
+        RespBean respBean = new RespBean();
+        respBean.setCode(10001);
+        respBean.setMsg(msg);
+        respBean.setData(data);
+
+        return respBean;
+    }
+}

src/main/java/com/lh/config/ParamExceptionHandler.java

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+package com.lh.config;
+
+import com.lh.bean.RespBean;
+import com.lh.exception.MyException;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@Configuration
+@RestControllerAdvice
+public class ParamExceptionHandler {
+    @ExceptionHandler(MyException.class)
+    public RespBean myException(MyException e){
+        e.printStackTrace();
+        return RespBean.error(e.getMessage());
+    }
+
+    @ExceptionHandler(Exception.class)
+    public RespBean exception(Exception e){
+        e.printStackTrace();
+        return RespBean.error("未知错误，请联系管理员");
+    }
+
+
+}

src/main/java/com/lh/controller/CrowdfundingController.java

@@ -0,0 +1,62 @@
+package com.lh.controller;
+
+import com.lh.bean.CrowdfundingInfo;
+import com.lh.bean.Participant;
+import com.lh.bean.RespBean;
+import com.lh.exception.MyException;
+import com.lh.service.CrowdfundingService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@CrossOrigin
+@RestController
+@RequestMapping
+public class CrowdfundingController {
+
+    @Autowired
+    private CrowdfundingService crowdfundingService;
+
+    // 加载页面
+    @GetMapping("/page")
+    public RespBean loadPage() {
+        CrowdfundingInfo crowdfundingInfo = crowdfundingService.loadPage();
+        return RespBean.ok("请求成功",crowdfundingInfo);
+    }
+
+    // 修改标题
+    @PutMapping("/title")
+    public RespBean updateTitle(@RequestParam("title") String title) throws MyException {
+        crowdfundingService.updateTitle(title);
+        return RespBean.ok("修改标题成功");
+    }
+
+    // 修改众筹目标
+    @PutMapping("/target")
+    public RespBean updateTarget(@RequestParam("targetNumber") Integer targetNumber) throws MyException {
+        crowdfundingService.updateTarget(targetNumber);
+        return RespBean.ok("修改目标成功");
+    }
+
+    // 添加众筹用户
+    @PostMapping("/addUser")
+    public RespBean addCrowdUser(@RequestBody Participant participant) throws MyException {
+        crowdfundingService.addCrowdUser(participant);
+        return RespBean.ok("添加成功");
+    }
+
+    // 删除众筹用户
+    @DeleteMapping("/delUser/{jwcode}")
+    public RespBean deleteCrowdUser(@PathVariable String jwcode) throws MyException {
+        crowdfundingService.deleteCrowdUser(jwcode);
+        return RespBean.ok("删除成功");
+    }
+
+    // 查询众筹用户
+    @PostMapping("/users")
+    public RespBean queryCrowdUser(@RequestBody(required = false) Participant participant) {
+        List<Participant> participants = crowdfundingService.queryCrowdUser(participant);
+        return RespBean.ok("查询成功",participants);
+    }
+}

src/main/java/com/lh/exception/MyException.java

@@ -0,0 +1,7 @@
+package com.lh.exception;
+
+public class MyException extends Exception{
+    public MyException(String msg){
+        super(msg);
+    }
+}

src/main/java/com/lh/mapper/CrowdfundingMapper.java

@@ -0,0 +1,35 @@
+package com.lh.mapper;
+
+import com.lh.bean.CrowdfundingInfo;
+import com.lh.bean.Participant;
+import org.apache.ibatis.annotations.Mapper;
+
+import java.util.List;
+@Mapper
+public interface CrowdfundingMapper {
+    //加载页面
+    CrowdfundingInfo loadPage();
+
+    //修改标题
+    void updateTitle(String title);
+
+    //修改众筹目标
+    void updateTarget(Integer target);
+
+    //当前众筹数量+1
+    void updateNowNumber();
+
+    //添加众筹用户
+    void addCrowdUser(Participant participant);
+
+    //删除众筹用户
+    void deleteCrowdUser(String jwcode);
+
+    //删除用户添加到另一个表
+    void saveDeleteCrowdUser(Participant participant);
+
+    //查询众筹用户
+    List<Participant> queryCrowdUser(Participant participant);
+
+
+}

src/main/java/com/lh/service/CrowdfundingService.java

@@ -0,0 +1,27 @@
+package com.lh.service;
+
+import com.lh.bean.CrowdfundingInfo;
+import com.lh.bean.Participant;
+import com.lh.exception.MyException;
+
+import java.util.List;
+
+public interface CrowdfundingService {
+    //加载页面
+    CrowdfundingInfo loadPage();
+
+    //修改标题
+    void updateTitle(String title) throws MyException;
+
+    //修改众筹目标
+    void updateTarget(Integer target) throws MyException;
+
+    //添加众筹用户
+    void addCrowdUser(Participant participant) throws MyException;
+
+    //删除众筹用户
+    void deleteCrowdUser(String jwcode) throws MyException;
+
+    //查询众筹用户
+    List<Participant> queryCrowdUser(Participant participant);
+}

src/main/java/com/lh/service/CrowdfundingServiceImpl.java

@@ -0,0 +1,82 @@
+package com.lh.service;
+
+import com.lh.bean.CrowdfundingInfo;
+import com.lh.bean.Participant;
+import com.lh.exception.MyException;
+import com.lh.mapper.CrowdfundingMapper;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+@Service
+public class CrowdfundingServiceImpl implements CrowdfundingService {
+    @Autowired
+    private CrowdfundingMapper crowdfundingMapper;
+    @Override
+    public CrowdfundingInfo loadPage() {
+        CrowdfundingInfo crowdfundingInfoList = crowdfundingMapper.loadPage();
+        List<Participant> participants = crowdfundingMapper.queryCrowdUser(null);
+        crowdfundingInfoList.setParticipantList(participants);
+        return crowdfundingInfoList;
+    }
+
+    @Override
+    public void updateTitle(String title) throws MyException {
+        if (title.length() == 0) {
+            throw new MyException("标题不能为空");
+        }
+        crowdfundingMapper.updateTitle(title);
+    }
+
+    @Override
+    public void updateTarget(Integer target) throws MyException {
+        //target不能为空
+        if (target == null) {
+            throw new MyException("目标不能为空");
+        }
+        //target只能输入数字且必须大于0
+        if (target <= 0) {
+            throw new MyException("目标必须大于0");
+        }
+        if (target.toString().matches("[0-9]+") == false) {
+            throw new MyException("目标只能输入数字");
+        }
+        crowdfundingMapper.updateTarget(target);
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void addCrowdUser(Participant participant) throws MyException {
+        //精网号重复
+        if (crowdfundingMapper.queryCrowdUser(new Participant(null,participant.getJwcode(),null,null)) != null) {
+            throw new MyException("精网号重复");
+        }
+        //精网号不能为空
+        if (participant.getJwcode() == null) {
+            throw new MyException("精网号不能为空");
+        }
+        //精网号不能为空
+        if (participant.getIdentity() == null) {
+            throw new MyException("身份不能为空");
+        }
+        crowdfundingMapper.updateNowNumber();
+        crowdfundingMapper.addCrowdUser(participant);
+    }
+
+    @Override
+    public void deleteCrowdUser(String jwcode) throws MyException {
+        if (crowdfundingMapper.queryCrowdUser(new Participant(null,jwcode,null,null)) == null) {
+            throw new MyException("删除失败，用户不存在");
+        }
+        List<Participant> participants = crowdfundingMapper.queryCrowdUser(new Participant(null, jwcode, null, null));
+        Participant participant = participants.get(0);
+        crowdfundingMapper.saveDeleteCrowdUser(participant);
+        crowdfundingMapper.deleteCrowdUser(jwcode);
+    }
+
+    @Override
+    public List<Participant> queryCrowdUser(Participant participant) {
+        return crowdfundingMapper.queryCrowdUser(participant);
+    }
+}

src/main/resources/application.properties

@@ -0,0 +1,29 @@
+# 配置连接池
+spring.datasource.driver-class-name=com.mysql.jdbc.Driver
+spring.datasource.url=jdbc:mysql://localhost:3306/crowdfunding_system?serverTimezone=UTC
+spring.datasource.username=root
+spring.datasource.password=123456
+# HikariCP连接池配置
+spring.datasource.hikari.maximum-pool-size=10
+spring.datasource.hikari.minimum-idle=5
+spring.datasource.hikari.idle-timeout=30000
+spring.datasource.hikari.max-lifetime=1800000
+spring.datasource.hikari.connection-timeout=30000
+spring.datasource.hikari.pool-name=HwgoldHikariCP
+
+# mybatis配置
+# 打印log信息
+mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
+# 开启驼峰命名法，自动将数据库的命名方式，映射成Java中的命名方式
+mybatis.configuration.map-underscore-to-camel-case: true
+#下面这些内容是为了让MyBatis映射
+#指定Mybatis的Mapper文件
+mybatis.mapper-locations=classpath:mappers/*xml
+#指定Mybatis的实体目录
+mybatis.type-aliases-package=com.lh.mybatis.entity
+
+# 应用服务 WEB 访问端口
+server.port=8092
+
+
+

src/main/resources/com/lh/mapper/CrowdfundingMapper.xml

@@ -0,0 +1,36 @@
+<?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.lh.mapper.CrowdfundingMapper">
+    <insert id="addCrowdUser">
+        insert into participants (jwcode, identity) values (#{jwcode}, #{identity})
+    </insert>
+    <insert id="saveDeleteCrowdUser">
+        insert into participants_del_save (jwcode, identity) values (#{jwcode}, #{identity})
+    </insert>
+    <update id="updateTitle">
+        update crowdfundinginfo set title=#{title}
+    </update>
+    <update id="updateTarget">
+        update crowdfundinginfo set target_number=#{target}
+    </update>
+    <update id="updateNowNumber">
+        update crowdfundinginfo set now_number=now_number+1
+    </update>
+    <delete id="deleteCrowdUser">
+        delete from participants where jwcode=#{jwcode}
+    </delete>
+    <select id="loadPage" resultType="com.lh.bean.CrowdfundingInfo">
+        select * from crowdfundinginfo
+    </select>
+    <select id="queryCrowdUser" resultType="com.lh.bean.Participant">
+        select * from participants
+        <where>
+            <if test="jwcode!=null and jwcode.length>0">
+                jwcode like concat('%',#{jwcode},'%')
+            </if>
+            <if test="identity!=null">
+                and identity=#{identity}
+            </if>
+        </where>
+    </select>
+</mapper>

src/main/resources/static/index.html

@@ -0,0 +1,6 @@
+<html>
+    <body>
+        <h1>hello word!!!</h1>
+        <p>this is a html page</p>
+    </body>
+</html>

src/test/java/com/lh/CrowdfundingSystemApplicationTests.java

@@ -0,0 +1,29 @@
+package com.lh;
+
+import com.lh.bean.CrowdfundingInfo;
+import com.lh.mapper.CrowdfundingMapper;
+import com.lh.service.CrowdfundingService;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class CrowdfundingSystemApplicationTests {
+    @Autowired
+    private CrowdfundingMapper crowdfundingMapper;
+
+    @Autowired
+    private CrowdfundingService crowdfundingService;
+
+    @Test
+    void contextLoads() {
+        CrowdfundingInfo crowdfundingInfo = crowdfundingMapper.loadPage();
+    }
+
+    @Test
+    void contextLoads1() {
+        System.out.println(crowdfundingService.loadPage());
+    }
+
+
+}