丰富模板，添加knife4j依赖等

pom.xml

@@ -5,8 +5,8 @@
     <groupId>com.linxyun</groupId>
     <artifactId>homework</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-    <name>homework</name>
+    <name>project</name>
-    <description>homework</description>
+    <description>project</description>
     <properties>
         <java.version>17</java.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -29,13 +29,28 @@
             <artifactId>mysql-connector-java</artifactId>
             <version>8.0.33</version>
         </dependency>
-
-
         <dependency>
             <groupId>com.baomidou</groupId>
             <artifactId>mybatis-plus-boot-starter</artifactId>
             <version>3.5.9</version>
         </dependency>
+        <!-- https://mvnrepository.com/artifact/com.squareup.okhttp3/okhttp -->
+        <dependency>
+            <groupId>com.squareup.okhttp3</groupId>
+            <artifactId>okhttp</artifactId>
+            <version>4.12.0</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/com.alibaba.fastjson2/fastjson2 -->
+        <dependency>
+            <groupId>com.alibaba.fastjson2</groupId>
+            <artifactId>fastjson2</artifactId>
+            <version>2.0.53</version>
+        </dependency>
+        <dependency>
+            <groupId>com.github.xiaoymin</groupId>
+            <artifactId>knife4j-openapi3-spring-boot-starter</artifactId>
+            <version>4.4.0</version>
+        </dependency>
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid-spring-boot-starter</artifactId>
@@ -76,7 +91,7 @@
                 <artifactId>spring-boot-maven-plugin</artifactId>
                 <version>${spring-boot.version}</version>
                 <configuration>
-                    <mainClass>com.linxyun.homework.HomeworkApplication</mainClass>
+                    <mainClass>com.linxyun.project.ProjectApplication</mainClass>
                     <skip>true</skip>
                 </configuration>
                 <executions>

src/main/java/com/linxyun/project/ProjectApplication.java

@@ -1,15 +1,15 @@
-package com.linxyun.homework;
+package com.linxyun.project;
 
 import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
-@MapperScan("com.linxyun.homework.mapper")
+@MapperScan("com.linxyun.project.mapper")
-public class HomeworkApplication {
+public class ProjectApplication {
 
     public static void main(String[] args) {
-        SpringApplication.run(HomeworkApplication.class, args);
+        SpringApplication.run(ProjectApplication.class, args);
     }
 
 }

src/main/java/com/linxyun/project/common/entity/Result.java

@@ -0,0 +1,61 @@
+package com.linxyun.project.common.entity;
+
+
+import com.linxyun.project.common.enums.ErrorCode;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import lombok.ToString;
+
+@Data
+@ToString
+@Schema(description = "统一返回结果")
+public class Result<E> {
+    @Schema(description = "返回数据")
+    public E data;
+    @Schema(description = "状态码")
+    public String code;
+    @Schema(description = "返回信息")
+    public String msg;
+    @Schema(description = "是否成功")
+    public boolean success = true;
+
+    public Result(E data, String code, String msg, boolean success) {
+        this.data = data;
+        this.code = code;
+        this.msg = msg;
+        this.success = success;
+    }
+
+    public static <T> Result<T> error(ErrorCode codeEnum) {
+        return new Result<>(null, codeEnum.getCode(), codeEnum.getMessage(), false);
+
+    }
+
+    public static <T> Result<T> error(String code, String msg) {
+        return new Result<>(null, code, msg, false);
+    }
+
+    public static <T> Result<T> ok() {
+        return new Result<>(null, "0000", "操作成功", true);
+    }
+
+    public static <T> Result<T> ok(String msg) {
+        return new Result<>(null, "0000", msg, true);
+
+    }
+    public static <T> Result<T> ok(T data) {
+        return new Result<>(data, "0000", "操作成功", true);
+
+    }
+
+    public static <T> Result<T> ok(T data, String msg) {
+        return new Result<>(data, "0000", msg, true);
+    }
+
+    public Result() {
+        this.success = false;
+        this.code = "9999";
+        this.msg = "操作失败";
+        this.data = null;
+    }
+}

src/main/java/com/linxyun/project/common/enums/ErrorCode.java

@@ -0,0 +1,122 @@
+package com.linxyun.project.common.enums;
+
+import lombok.Getter;
+
+@Getter
+public enum ErrorCode {
+
+    // 用户不存在或密码不匹配
+    USER_NOT_FOUND_OR_PASSWORD_MISMATCH("1006", "用户不存在或密码不匹配"),
+
+    // 参数错误
+    PARAMETER_ERROR("204", "参数错误"),
+
+    // URI 不存在
+    URI_NOT_FOUND("240", "URI不存在"),
+
+    // URI 已经存在
+    URI_ALREADY_EXISTS("241", "URI已经存在"),
+
+    // 服务的路由异常，请联系管理员
+    ROUTING_EXCEPTION("320", "服务的路由异常，请联系管理员"),
+
+    // 处理超时，服务配置出错，请联系管理员
+    TIMEOUT_ERROR("998", "处理超时，服务配置出错，请联系管理员"),
+
+    // 登录超时，请重新登录
+    LOGIN_TIMEOUT("9998", "登录超时，请重新登录"),
+
+    // 登录超时，请重新登录
+    LOGIN_TIMEOUT_2("401", "登录超时，请重新登录"),
+
+    // 操作失败
+    OPERATION_FAIL("1005", "操作失败"),
+
+    // 用户已经存在
+    USER_ALREADY_EXISTS("1007", "用户已经存在"),
+
+    // 操作ID配置错误，请联系管理员
+    OPERATION_ID_ERROR("1008", "操作ID配置错误，请联系管理员"),
+
+    // 用户ID参数错误
+    USER_ID_PARAMETER_ERROR("1009", "用户ID参数错误"),
+
+    // 用户邮箱地址错误
+    USER_EMAIL_ERROR("1011", "用户邮箱地址错误"),
+
+    // 邮箱地址已经存在
+    EMAIL_ALREADY_EXISTS("1012", "邮箱地址已经存在"),
+
+    // 手机号码格式不正确
+    PHONE_NUMBER_FORMAT_ERROR("1013", "手机号码格式不正确"),
+
+    // 手机号码已经存在
+    PHONE_NUMBER_ALREADY_EXISTS("1014", "手机号码已经存在"),
+
+    // 登录验证出错
+    LOGIN_VALIDATION_ERROR("1020", "登录验证出错"),
+
+    // 用户没有登录
+    USER_NOT_LOGGED_IN("1021", "用户没有登录"),
+
+    // 用户状态不正常
+    USER_STATUS_ERROR("1022", "用户状态不正常"),
+
+    // 发送验证码失败
+    SEND_VERIFICATION_CODE_FAIL("1023", "发送验证码失败"),
+
+    // 验证码验证失败
+    VERIFICATION_CODE_FAIL("1024", "验证码验证失败"),
+
+    // 用户组已经存在
+    USER_GROUP_ALREADY_EXISTS("1030", "用户组已经存在"),
+
+    // 用户组不存在
+    USER_GROUP_NOT_EXISTS("1031", "用户组不经存在"),
+
+    // 操作出错
+    OPERATION_ERROR("1999", "操作出错"),
+
+    // 前端处理验证数据出错
+    FRONTEND_VALIDATION_ERROR("886000", "前端处理验证数据出错"),
+
+    // 请先删除内容
+    DELETE_CONTENT_FIRST("2012", "请先删除内容"),
+    // 文件不存在
+    FILE_NOT_FOUND("3000", "文件不存在"),
+    // 文件大小超出限制
+    FILE_SIZE_EXCEEDED("3001", "文件大小超出限制"),
+    // 文件上传失败
+    FILE_UPLOAD_FAILED("3002", "文件上传失败"),
+    // 请求失败
+    REQUEST_FAILED("3003", "请求失败"),
+    NONE("6666666", "站位");
+
+
+
+    private final String code;
+    private final String message;
+
+    ErrorCode(String code, String message) {
+        this.code = code;
+        this.message = message;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    // 根据错误代码获取对应的错误信息
+    public static String getMessageByCode(String code) {
+        for (ErrorCode errorCode : values()) {
+            if (errorCode.getCode().equals(code)) {
+                return errorCode.getMessage();
+            }
+        }
+        return "未知错误";
+    }
+}

src/main/java/com/linxyun/project/config/OpenApiConfig.java

@@ -0,0 +1,25 @@
+package com.linxyun.project.config;
+
+import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.info.Contact;
+import io.swagger.v3.oas.models.info.Info;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class OpenApiConfig {
+
+    @Bean
+    public OpenAPI springShopOpenAPI() {
+        return new OpenAPI()
+                // 接口文档标题
+                .info(new Info()
+                        .title("项目接口文档")
+                        // 接口文档描述
+                        .description("项目接口")
+                        // 接口文档版本
+                        .version("v1.0")
+                        .contact(new Contact().name("wenxin"))
+                );
+    }
+}

src/main/java/com/linxyun/project/config/WebConfig.java

@@ -0,0 +1,19 @@
+package com.linxyun.project.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class WebConfig implements WebMvcConfigurer {
+    // 全局跨域
+    @Override
+    public void addCorsMappings(CorsRegistry registry) {
+        registry.addMapping("/**")
+                .allowedOriginPatterns("*")
+                .allowedMethods("GET", "HEAD", "POST", "PUT", "DELETE", "OPTIONS")
+                .allowCredentials(true)
+                .maxAge(3600)
+                .allowedHeaders("*");
+    }
+}

src/main/java/com/linxyun/project/utils/FileUtils.java

@@ -0,0 +1,148 @@
+package com.linxyun.project.utils;
+
+import com.alibaba.fastjson2.JSONObject;
+import lombok.extern.slf4j.Slf4j;
+import okhttp3.*;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+
+import java.io.*;
+
+@Slf4j
+@Component
+public class FileUtils {
+    private static final OkHttpClient client = new OkHttpClient();
+
+    @Value("${upload.base-url}")
+    private String baseUrl;
+
+    /**
+     * 下载文件到指定目录
+     * @param fileUrl   文件 URL
+     * @param targetDir 本地目标目录
+     * @param fileName  保存的文件名
+     * @throws IOException 如果发生 IO 异常
+     */
+    public void downloadFile(String fileUrl, String targetDir, String fileName) throws IOException {
+        // 构建请求
+        Request request = new Request.Builder()
+                .url(fileUrl)
+                .build();
+
+        // 执行请求
+        try (Response response = client.newCall(request).execute()) {
+            if (!response.isSuccessful()) {
+                throw new IOException("文件下载失败, HTTP 响应码: " + response.code());
+            }
+
+            // 确保目标目录存在
+            File directory = new File(targetDir);
+            if (!directory.exists() && !directory.mkdirs()) {
+                throw new IOException("无法创建目标目录: " + targetDir);
+            }
+
+            // 获取输入流并保存文件
+            try (InputStream inputStream = response.body().byteStream();
+                 FileOutputStream outputStream = new FileOutputStream(new File(directory, fileName))) {
+
+                byte[] buffer = new byte[4096];
+                int bytesRead;
+                while ((bytesRead = inputStream.read(buffer)) != -1) {
+                    outputStream.write(buffer, 0, bytesRead);
+                }
+            }
+
+            System.out.println("文件下载完成: " + targetDir + File.separator + fileName);
+        }
+    }
+
+    /**
+     * 下载指定 URL 的文件，并将内容转化为字节数组。
+     *
+     * @param fileUrl  文件的 URL
+     * @param fileName 文件名（可以用来关联下载到本地的文件）
+     * @return 文件内容的字节数组
+     */
+    public String uploadFileByUrl(String fileUrl, String fileName) {
+        // 创建 GET 请求
+        Request request = new Request.Builder()
+                .url(fileUrl)
+                .build();
+
+        // 执行请求
+        try (Response response = client.newCall(request).execute()) {
+            if (!response.isSuccessful()) {
+                log.error("Failed to download file: " + response.message());
+                return null;
+            }
+
+            // 获取文件内容作为字节数组
+            try (ResponseBody responseBody = response.body();
+                 InputStream inputStream = responseBody.byteStream();
+                 ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream()) {
+                byte[] buffer = new byte[4096];
+                int bytesRead;
+
+                // 读取数据到缓冲区
+                while ((bytesRead = inputStream.read(buffer)) != -1) {
+                    byteArrayOutputStream.write(buffer, 0, bytesRead);
+                }
+                return uploadFile(byteArrayOutputStream.toByteArray(), fileName);
+            }
+        } catch (IOException e) {
+            log.error("FileUploadTool uploadFileByUrl exception: ", e);
+            return null;
+        }
+    }
+
+
+
+    /**
+     * 使用 OkHttp 上传文件
+     *
+     * @param fileBytes 文件字节数组
+     * @param fileName  文件名
+     * @return 上传成功时返回服务器响应的 "data" 字段；否则返回 null
+     */
+    public String uploadFile(byte[] fileBytes, String fileName) {
+        String uploadUrl = baseUrl + "/eslithe/uploadFile.action";
+        // 创建请求体
+        RequestBody fileBody = RequestBody.create(fileBytes, MediaType.parse("application/octet-stream"));
+        MultipartBody requestBody = new MultipartBody.Builder()
+                .setType(MultipartBody.FORM)
+                .addFormDataPart("file", fileName, fileBody)
+                .build();
+
+        // 创建请求
+        Request request = new Request.Builder()
+                .url(uploadUrl)
+                .post(requestBody)
+                .build();
+
+        // 执行请求
+        try (Response response = client.newCall(request).execute()) {
+            if (response.isSuccessful() && response.body() != null) {
+                String responseBody = response.body().string();
+                log.info("FileUploadTool uploadFile result: " + responseBody);
+
+                // 解析响应
+                JSONObject jsonObject = JSONObject.parseObject(responseBody);
+                if (jsonObject != null
+                        && jsonObject.getBoolean("success") != null
+                        && jsonObject.getBoolean("success")
+                        && jsonObject.containsKey("data")) {
+                    return jsonObject.getString("data");
+                } else {
+                    log.error("FileUploadTool uploadFile failed: " + responseBody);
+                    return null;
+                }
+            } else {
+                log.error("FileUploadTool uploadFile failed, HTTP code: " + response.code());
+                return null;
+            }
+        } catch (IOException ex) {
+            log.error("FileUploadTool uploadFile exception: ", ex);
+            return null;
+        }
+    }
+}

src/main/java/com/linxyun/project/utils/StringUtils.java

@@ -0,0 +1,8 @@
+package com.linxyun.project.utils;
+
+public class StringUtils {
+    public static boolean isEmpty(String str)
+    {
+        return str == null || str.isEmpty();
+    }
+}

src/main/java/com/linxyun/project/utils/TimeUtils.java

@@ -0,0 +1,21 @@
+package com.linxyun.project.utils;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+public class TimeUtils {
+    static SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmss"); // 定义日期格式
+    public static Date toDate(String dateStr) {
+        try {
+            return dateFormat.parse(dateStr);
+        } catch (Exception e) {
+            e.printStackTrace(); // 如果有异常，输出错误信息
+        }
+        return null;
+    }
+
+    public static String getCurrentTime() {
+        Date now = new Date();
+        return dateFormat.format(now);
+    }
+}

src/main/resources/application.yml

@@ -32,4 +32,24 @@ mybatis-plus:
     # 如果查询结果中包含空值的列，则 MyBatis 在映射的时候，不会映射这个字段
     call-setters-on-nulls: true
     # 这个配置会将执行的sql打印出来，在开发或测试的时候可以用
-    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
+    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
+
+springdoc:
+  swagger-ui:
+    path: /swagger-ui.html
+    tags-sorter: alpha
+    operations-sorter: alpha
+  api-docs:
+    path: /v3/api-docs
+  group-configs:
+    - group: 'default'
+      paths-to-match: '/**'
+      packages-to-scan: com.linxyun.homework.controller
+# knife4j的增强配置，不需要增强可以不配
+knife4j:
+  enable: true
+  setting:
+    language: zh_cn
+
+upload:
+  base-url: http://www.linxyun.com

src/test/java/com/linxyun/project/HomeworkApplicationTests.java

@@ -1,4 +1,4 @@
-package com.linxyun.homework;
+package com.linxyun.project;
 
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;