1.删除某部分图书代码

2.试卷部分
3.修改配置类 使mybatis分页生效
补充提交

docs/初步.md

@@ -0,0 +1,14 @@
+## 角色
+管理员<br>
+用户<br>
+教师<br>
+只要有多角色 就要设计 <br> 
+RBAC——基于角色权限的模型
+
+角色表  用户表  用户角色表  权限表 角色权限表 <br>
+
+要做全控制 
+表单 按钮 视图
+
+
+

src/main/java/com/guwan/backend/common/Result.java

@@ -10,7 +10,6 @@ public class Result<T> {
     private Integer code;
     private String message;
     private T data;
-    private Long nums;
     private String time;
 
     public Result() {

src/main/java/com/guwan/backend/common/SearchResult.java

@@ -0,0 +1,98 @@
+package com.guwan.backend.common;
+
+import lombok.Data;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+@Data
+public class SearchResult<T> {
+    private Integer code;
+    private String message;
+    private T data;
+    private Long total;
+    private String time;
+
+    public SearchResult() {
+        this.time = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());
+    }
+
+    public static <T> SearchResult<T> success() {
+        SearchResult<T> result = new SearchResult<>();
+        result.setCode(200);
+        result.setMessage("操作成功");
+        return result;
+    }
+
+    public static <T> SearchResult<T> success(T data) {
+        SearchResult<T> result = new SearchResult<>();
+        result.setCode(200);
+        result.setMessage("操作成功");
+        result.setData(data);
+        return result;
+    }
+
+    public static <T> SearchResult<T> success(T data, Long total) {
+        SearchResult<T> result = new SearchResult<>();
+        result.setCode(200);
+        result.setMessage("操作成功");
+        result.setData(data);
+        result.setTotal(total);
+        return result;
+    }
+
+    public static <T> SearchResult<T> success(String message, T data) {
+        SearchResult<T> result = new SearchResult<>();
+        result.setCode(200);
+        result.setMessage(message);
+        result.setData(data);
+        return result;
+    }
+
+    public static <T> SearchResult<T> error(String message) {
+        SearchResult<T> result = new SearchResult<>();
+        result.setCode(500);
+        result.setMessage(message);
+        return result;
+    }
+
+    public static <T> SearchResult<T> error(Integer code, String message) {
+        SearchResult<T> result = new SearchResult<>();
+        result.setCode(code);
+        result.setMessage(message);
+        return result;
+    }
+
+    public static <T> SearchResult<T> error(Integer code, String message, T data) {
+        SearchResult<T> result = new SearchResult<>();
+        result.setCode(code);
+        result.setMessage(message);
+        result.setData(data);
+        return result;
+    }
+
+    // 常用状态码
+    public static final int SUCCESS = 200;
+    public static final int ERROR = 500;
+    public static final int UNAUTHORIZED = 401;
+    public static final int FORBIDDEN = 403;
+    public static final int NOT_FOUND = 404;
+    public static final int VALIDATE_FAILED = 400;
+
+    // 业务状态码
+    public static <T> SearchResult<T> validateFailed(String message) {
+        return error(VALIDATE_FAILED, message);
+    }
+
+    public static <T> SearchResult<T> unauthorized(String message) {
+        return error(UNAUTHORIZED, message);
+    }
+
+    public static <T> SearchResult<T> forbidden(String message) {
+        return error(FORBIDDEN, message);
+    }
+
+    public static <T> SearchResult<T> notFound(String message) {
+        return error(NOT_FOUND, message);
+    }
+} 

src/main/java/com/guwan/backend/constant/CacheConstants.java

@@ -12,7 +12,8 @@ public class CacheConstants {
      * 缓存内容
      */
     public static final List<String> CACHE_LIST = List.of(
-         "userCache"
+         "userCache",
+            "paperCache"
     );
     
 

src/main/java/com/guwan/backend/controller/PapersController.java

@@ -0,0 +1,114 @@
+package com.guwan.backend.controller;
+
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.guwan.backend.annotation.OperationLog;
+import com.guwan.backend.common.Result;
+import com.guwan.backend.common.SearchResult;
+import com.guwan.backend.pojo.entity.Papers;
+import com.guwan.backend.service.PapersService;
+import com.guwan.backend.util.UUIDUtil;
+import io.swagger.v3.oas.annotations.Operation;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 试卷控制层
+ *
+ * @author Guwan
+ * @since 2025-01-11 12:06:49
+ */
+@RestController
+@RequestMapping("/api/common/papers")
+@RequiredArgsConstructor
+public class PapersController {
+    /**
+     * 服务对象
+     */
+
+    private final PapersService papersService;
+
+    /**
+     * 分页查询
+     *
+     * @param papers 筛选条件
+     * @param pageRequest      分页对象
+     * @return 查询结果
+     */
+    @GetMapping
+    public SearchResult<List<Papers>> queryByPage(@RequestParam(defaultValue = "1") int page,
+                                                  @RequestParam(defaultValue = "1") int size) {
+
+
+
+        Page<Papers> papersPage = new Page<>(page, size);
+
+        // 使用分页查询，注意 lambdaQuery().page() 方法
+        IPage<Papers> resultPage = papersService.lambdaQuery()
+                .page(papersPage);
+
+
+
+        return SearchResult.success(resultPage.getRecords(), resultPage.getTotal());
+       
+    }
+
+    /**
+     * 通过主键查询单条数据
+     *
+     * @param id 主键
+     * @return 单条数据
+     */
+    @GetMapping("{id}")
+    @Operation(summary = "获取单张试卷信息")
+    @OperationLog(description = "获取单张试卷信息")
+    public Result<Papers> queryById(@PathVariable("id") Integer id) {
+       return Result.success(this.papersService.getById(id));
+    }
+
+    /**
+     * 新增数据
+     *
+     * @param papers 实体
+     * @return 新增结果
+     */
+    @PostMapping
+    @Operation(summary = "创建试卷")
+    @OperationLog(description = "创建试卷")
+    public Result<Papers> add(@RequestBody Papers papers) {
+
+
+        papers.setPaperUuid(UUIDUtil.uuid());
+
+        papersService.save(papers);
+
+        return Result.success();
+    }
+
+    /**
+     * 编辑数据
+     *
+     * @param papers 实体
+     * @return 编辑结果
+     */
+    @PutMapping
+    public Result<Papers> edit(Papers papers) {
+        //return Result.success(this.papersService.update(papers));
+         return Result.success();
+    }
+
+    /**
+     * 删除数据
+     *
+     * @param id 主键
+     * @return 删除是否成功
+     */
+    @DeleteMapping
+    public Result<Boolean> deleteById(Integer id) {
+        return Result.success(this.papersService.removeById(id));
+    }
+
+}
+

src/main/java/com/guwan/backend/generator/domain/Papers.java

@@ -0,0 +1,76 @@
+package generator.domain;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import java.io.Serializable;
+import java.util.Date;
+import lombok.Data;
+
+/**
+ * 
+ * @TableName papers
+ */
+@TableName(value ="papers")
+@Data
+public class Papers implements Serializable {
+    /**
+     * 试卷编号
+     */
+    @TableId(type = IdType.AUTO)
+    private Integer paperId;
+
+    /**
+     * 试卷名称
+     */
+    private String paperName;
+
+    /**
+     * 试卷描述
+     */
+    private String description;
+
+    /**
+     * 命题人
+     */
+    private String paperSetter;
+
+    /**
+     * 校对人
+     */
+    private String paperReviewer;
+
+    /**
+     * 开始时间
+     */
+    private Date startTime;
+
+    /**
+     * 结束时间
+     */
+    private Date endTime;
+
+    /**
+     * 考试时间
+     */
+    private Integer duration;
+
+    /**
+     * 试卷状态
+     */
+    private Object status;
+
+    /**
+     * 创建时间
+     */
+    private Date createdTime;
+
+    /**
+     * 修改时间
+     */
+    private Date updatedTime;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/guwan/backend/generator/mapper/PapersMapper.java

@@ -0,0 +1,18 @@
+package generator.mapper;
+
+import generator.domain.Papers;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+
+/**
+* @author 12455
+* @description 针对表【papers】的数据库操作Mapper
+* @createDate 2025-01-11 12:09:52
+* @Entity generator.domain.Papers
+*/
+public interface PapersMapper extends BaseMapper<Papers> {
+
+}
+
+
+
+

src/main/java/com/guwan/backend/generator/service/PapersService.java

@@ -0,0 +1,13 @@
+package generator.service;
+
+import generator.domain.Papers;
+import com.baomidou.mybatisplus.extension.service.IService;
+
+/**
+* @author 12455
+* @description 针对表【papers】的数据库操作Service
+* @createDate 2025-01-11 12:09:52
+*/
+public interface PapersService extends IService<Papers> {
+
+}

src/main/java/com/guwan/backend/generator/service/impl/PapersServiceImpl.java

@@ -0,0 +1,22 @@
+package generator.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import generator.domain.Papers;
+import generator.service.PapersService;
+import generator.mapper.PapersMapper;
+import org.springframework.stereotype.Service;
+
+/**
+* @author 12455
+* @description 针对表【papers】的数据库操作Service实现
+* @createDate 2025-01-11 12:09:52
+*/
+@Service
+public class PapersServiceImpl extends ServiceImpl<PapersMapper, Papers>
+    implements PapersService{
+
+}
+
+
+
+

src/main/java/com/guwan/backend/mapper/PapersMapper.java

@@ -0,0 +1,18 @@
+package com.guwan.backend.mapper;
+
+import com.guwan.backend.pojo.entity.Papers;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+
+/**
+* @author 12455
+* @description 针对表【papers】的数据库操作Mapper
+* @createDate 2025-01-11 12:00:45
+* @Entity com.guwan.backend.pojo.entity.Papers
+*/
+public interface PapersMapper extends BaseMapper<Papers> {
+
+}
+
+
+
+

src/main/java/com/guwan/backend/pojo/entity/Papers.java

@@ -0,0 +1,100 @@
+package com.guwan.backend.pojo.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import java.io.Serializable;
+import java.time.LocalDateTime;
+import java.util.Date;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import lombok.Data;
+import org.springframework.format.annotation.DateTimeFormat;
+
+/**
+ * 
+ * @TableName papers
+ */
+@TableName(value ="papers")
+@Data
+public class Papers implements Serializable {
+    /**
+     * 试卷编号
+     */
+    @TableId(type = IdType.AUTO)
+    private Integer paperId;
+
+    /**
+     * 试卷uuid
+     */
+    private String paperUuid;
+
+    /**
+     * 试卷名称
+     */
+    private String paperName;
+
+    /**
+     * 试卷描述
+     */
+    private String description;
+
+    /**
+     * 试卷满分
+     */
+    private int maxScore;
+
+    /**
+     * 命题人
+     */
+    private String paperSetter;
+
+    /**
+     * 校对人
+     */
+    private String paperReviewer;
+
+
+    /**
+     * 试卷状态
+     */
+    private String status;
+
+    /**
+     * 考试时间
+     */
+    private Integer duration;
+
+
+    /**
+     * 开始时间
+     */
+    @DateTimeFormat //此注解用来接收字符串类型的参数封装成LocalDateTime类型
+    @JsonFormat //此注解将date类型数据转成字符串响应出去
+    private LocalDateTime startTime;
+
+    /**
+     * 结束时间
+     */
+    @DateTimeFormat //此注解用来接收字符串类型的参数封装成LocalDateTime类型
+    @JsonFormat //此注解将date类型数据转成字符串响应出去
+    private LocalDateTime endTime;
+
+    /**
+     * 创建时间
+     */
+    @DateTimeFormat //此注解用来接收字符串类型的参数封装成LocalDateTime类型
+    @JsonFormat //此注解将date类型数据转成字符串响应出去
+    private LocalDateTime createdTime;
+
+    /**
+     * 修改时间
+     */
+    @DateTimeFormat //此注解用来接收字符串类型的参数封装成LocalDateTime类型
+    @JsonFormat //此注解将date类型数据转成字符串响应出去
+    private LocalDateTime updatedTime;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/guwan/backend/service/PapersService.java

@@ -0,0 +1,17 @@
+package com.guwan.backend.service;
+
+import com.guwan.backend.pojo.entity.Papers;
+import com.baomidou.mybatisplus.extension.service.IService;
+import org.springframework.cache.annotation.Cacheable;
+
+import java.io.Serializable;
+
+/**
+* @author 12455
+* @description 针对表【papers】的数据库操作Service
+* @createDate 2025-01-11 12:00:45
+*/
+public interface PapersService extends IService<Papers> {
+
+
+}

src/main/java/com/guwan/backend/service/impl/PapersServiceImpl.java

@@ -0,0 +1,60 @@
+package com.guwan.backend.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.guwan.backend.pojo.dto.user.UserDTO;
+import com.guwan.backend.pojo.entity.Papers;
+import com.guwan.backend.service.PapersService;
+import com.guwan.backend.mapper.PapersMapper;
+import com.guwan.backend.util.RedisUtils;
+import lombok.RequiredArgsConstructor;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.stereotype.Service;
+
+import java.io.Serializable;
+
+/**
+* @author 12455
+* @description 针对表【papers】的数据库操作Service实现
+* @createDate 2025-01-11 12:00:45
+*/
+@Service
+@RequiredArgsConstructor
+public class PapersServiceImpl extends ServiceImpl<PapersMapper, Papers>
+    implements PapersService{
+
+
+
+    private static final String PAPER_CACHE_KEY = "paper:";
+
+    private final RedisUtils redisUtil;
+
+    @Override
+    @Cacheable(value = "paperCache", key = "#id")
+    public Papers getById(Serializable id) {
+
+        System.out.println("id = " + id);
+
+
+        Object cache = redisUtil.get(PAPER_CACHE_KEY + id);
+
+
+
+
+        log.debug("开始查询数据库");
+
+        Papers paper = super.getById(id);
+
+        if (paper == null) {
+            log.warn("试卷信息不存在");
+            return null;
+        }
+
+        redisUtil.set(PAPER_CACHE_KEY + id, paper);
+
+        return paper;
+    }
+}
+
+
+
+

src/main/java/com/guwan/backend/xxljob/job/SimpleXxlJob.java

@@ -34,6 +34,7 @@ public class SimpleXxlJob {
         System.out.println("执行定时任务,执行时间:"+sdf.format(new Date()));
 
         for (String cache : CacheConstants.CACHE_LIST) {
+            System.out.println("cache = " + cache);
             Map<String, Object> stats = getStats(cache);
             for (Map.Entry<String, Object> entry : stats.entrySet()) {
                 System.out.println("Key: " + entry.getKey() + ", Value: " + entry.getValue());

src/main/resources/application.yml

@@ -212,7 +212,7 @@ logging:
 xxl:
   job:
     admin:
-      addresses: http://192.168.1.127:9001/xxl-job-admin
+      addresses: http://192.168.0.6:9001/xxl-job-admin
     accessToken: GuwanTest
     executor:
       appname: xxl-job-executor-guwan

src/main/resources/mapper/PapersMapper.xml

@@ -0,0 +1,27 @@
+<?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="generator.mapper.PapersMapper">
+
+    <resultMap id="BaseResultMap" type="generator.domain.Papers">
+            <id property="paperId" column="paper_id" jdbcType="INTEGER"/>
+            <result property="paperName" column="paper_name" jdbcType="VARCHAR"/>
+            <result property="description" column="description" jdbcType="VARCHAR"/>
+            <result property="paperSetter" column="paper_setter" jdbcType="VARCHAR"/>
+            <result property="paperReviewer" column="paper_reviewer" jdbcType="VARCHAR"/>
+            <result property="startTime" column="start_time" jdbcType="TIMESTAMP"/>
+            <result property="endTime" column="end_time" jdbcType="TIMESTAMP"/>
+            <result property="duration" column="duration" jdbcType="INTEGER"/>
+            <result property="status" column="status" jdbcType="OTHER"/>
+            <result property="createdTime" column="created_time" jdbcType="TIMESTAMP"/>
+            <result property="updatedTime" column="updated_time" jdbcType="TIMESTAMP"/>
+    </resultMap>
+
+    <sql id="Base_Column_List">
+        paper_id,paper_name,description,
+        paper_setter,paper_reviewer,start_time,
+        end_time,duration,status,
+        created_time,updated_time
+    </sql>
+</mapper>