日考19

src/main/java/com/bwie/student/Student.java

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+package com.bwie.student;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * @Author：weiran
+ * @Package：com.bwie.student
+ * @Project：week3
+ * @name：Student
+ * @Date：2024/8/8 8:37
+ */
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class Student {
+    private Integer id;
+    private String name;
+    private String subject;
+    private Double score;
+
+}

src/main/java/com/bwie/student/controller/StudentController.java

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+package com.bwie.student.controller;
+
+import com.bwie.common.result.Result;
+import com.bwie.student.service.StudentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @Author：weiran
+ * @Package：com.bwie.student.controller
+ * @Project：week3
+ * @name：StudentController
+ * @Date：2024/8/8 8:39
+ */
+@RestController
+@RequestMapping("/student")
+public class StudentController {
+    @Autowired
+    private StudentService studentService;
+
+
+    /**
+     * 输出
+     */
+    public Result out(){
+        return Result.success(studentService.out());
+    }
+
+
+}

src/main/java/com/bwie/student/mapper/StudentMapper.java

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+package com.bwie.student.mapper;
+
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+ * @Author：weiran
+ * @Package：com.bwie.student.mapper
+ * @Project：week3
+ * @name：StudentMapper
+ * @Date：2024/8/8 8:36
+ */
+@Mapper
+public interface StudentMapper {
+}

src/main/java/com/bwie/student/service/StudentService.java

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+package com.bwie.student.service;
+
+import com.bwie.student.Student;
+
+import java.util.List;
+
+/**
+ * @Author：weiran
+ * @Package：com.bwie.student.service
+ * @Project：week3
+ * @name：StudentService
+ * @Date：2024/8/8 8:39
+ */
+public interface StudentService {
+    List<Student> out();
+}

src/main/java/com/bwie/student/service/impl/StudentServiceImpl.java

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+package com.bwie.student.service.impl;
+
+import com.bwie.student.Student;
+import com.bwie.student.service.StudentService;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Stream;
+
+/**
+ * @Author：weiran
+ * @Package：com.bwie.student.service.impl
+ * @Project：week3
+ * @name：StudentServiceImpl
+ * @Date：2024/8/8 8:39
+ */
+@Service
+public class StudentServiceImpl implements StudentService {
+
+    @Override
+    public List<Student> out() {
+       return null;
+
+    }
+
+
+    public static void main(String[] args) {
+        //创建5名学生(Student)对像，并放入集合中
+        ArrayList<Student> students = new ArrayList<>();
+        Student student1 = new Student(0, "张三", "语文", 78.0);
+        Student student2 = new Student(0, "李四", "语文", 88.0);
+        Student student3 = new Student(0, "王五", "语文", 79.0);
+        Student student4 = new Student(0, "赵六", "语文", 83.0);
+        Student student5 = new Student(0, "田七", "语文", 87.0);
+        students.add(student1);
+        students.add(student2);
+        students.add(student3);
+        students.add(student4);
+        students.add(student5);
+        Double avg=null;
+        for (Student student : students) {
+            avg+=student.getScore();
+            System.out.println("姓名为："+student.getName()+"\n");
+        }
+
+
+        System.out.println("平均值为："+(avg/5));
+    }
+}

src/main/java/com/bwie/student/utils/FastUtil.java

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+package com.bwie.student.utils;
+
+import org.springframework.stereotype.Component;
+import com.github.tobato.fastdfs.domain.fdfs.StorePath;
+import com.github.tobato.fastdfs.service.FastFileStorageClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.util.StringUtils;
+import org.springframework.web.multipart.MultipartFile;
+
+import javax.annotation.Resource;
+
+/**
+ * @BelongsProject: 0107day02
+ * @BelongsPackage: com.bw.config
+ * @Author: zhupengfei
+ * @CreateTime: 2023-02-01  08:52
+ */
+@Component
+public class FastUtil {
+    private static final Logger log = LoggerFactory.getLogger(FastUtil.class);
+
+    @Resource
+    private FastFileStorageClient storageClient ;
+
+    /**
+     * 上传文件
+     */
+    public String upload(MultipartFile multipartFile) throws Exception{
+        String originalFilename = multipartFile.getOriginalFilename().
+                substring(multipartFile.getOriginalFilename().
+                        lastIndexOf(".") + 1);
+        StorePath storePath = this.storageClient.uploadImageAndCrtThumbImage(
+                multipartFile.getInputStream(),
+                multipartFile.getSize(),originalFilename , null);
+        return storePath.getFullPath() ;
+    }
+    /**
+     * 删除文件
+     */
+    public String deleteFile(String fileUrl) {
+        if (StringUtils.isEmpty(fileUrl)) {
+            log.info("fileUrl == >>文件路径为空...");
+            return "文件路径不能为空";
+        }
+        try {
+            StorePath storePath = StorePath.parseFromUrl(fileUrl);
+            storageClient.deleteFile(storePath.getGroup(), storePath.getPath());
+        } catch (Exception e) {
+            log.error(e.getMessage());
+        }
+        return "删除成功";
+    }
+
+}

src/main/resources/bootstrap.yml

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+# Tomcat
+server:
+  port: 9003
+# Spring
+spring:
+  main:
+    allow-circular-references: true
+  jackson:
+    date-format: yyyy-MM-dd HH:mm:ss
+    time-zone: GMT+8
+  application:
+    # 应用名称
+    name: bwie-user
+  profiles:
+    # 环境配置
+    active: dev
+  cloud:
+    nacos:
+      discovery:
+        # 服务注册地址
+        server-addr: 122.51.12.81:8848
+      config:
+        # 配置中心地址
+        server-addr: 122.51.12.81:8848
+        # 配置文件格式
+        file-extension: yml
+        # 共享配置
+        shared-configs:
+          - application-${spring.profiles.active}.${spring.cloud.nacos.config.file-extension}

src/main/resources/mapper/StudentMapper.xml

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+<?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.student.mapper.StudentMapper">
+
+</mapper>