修改部分代码

src/main/java/com/c202201020242/task1/task1/controller/ReviewsController.java

@@ -0,0 +1,85 @@
+package com.c202201020242.task1.task1.controller;
+
+import com.c202201020242.task1.task1.model.Borrow_records;
+import com.c202201020242.task1.task1.model.Reviews;
+import com.c202201020242.task1.task1.model.Users;
+import com.c202201020242.task1.task1.service.BooksService;
+import com.c202201020242.task1.task1.service.ReviewsService;
+import com.c202201020242.task1.task1.service.UsersService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+@Controller
+public class ReviewsController {
+    @Autowired
+    private BooksService booksService;
+    @Autowired
+    private ReviewsService reviewsService;
+    @Autowired
+    private UsersService usersService;
+
+    @RequestMapping("/reviews")
+    public String reviews(Model model){
+        model.addAttribute("BookAndReviewList",booksService.getAllBooksAndReviews());
+        model.addAttribute("UserList",usersService.getAllUsers());
+        return "reviews.html";
+    }
+/*<!--
+author：202201020242 李木
+time：2024年10月13日
+-->*/
+    @RequestMapping("/addreview")
+    public String addreview(Model model){
+        return "addreview.html";
+    }
+    @RequestMapping("/addreviewcommit")
+    public String addreviewcommit(Reviews reviews){
+        //判断是否为空
+        if(reviews.getReviews().isEmpty()){
+            return "fail.html";
+        }
+        if(booksService.addReview(reviews)==0){
+            return "fail.html";
+        }
+        return "redirect:/reviews";
+    }
+    @RequestMapping("/borrow")
+    public String borrow(){
+        return "borrow.html";
+    }
+    @RequestMapping("/return")
+    public String return_(){
+        return "return.html";
+    }
+    @RequestMapping("/updateborrow")
+    public String updateborrow(){
+        return "updateborrow.html";
+    }
+    @RequestMapping("/borrowcommit")
+    public String borrowcommit(Borrow_records borrow_records, int userId, int bookid) {
+        //判断是否为空
+        if (userId == 0 || bookid == 0) {
+            return "fail.html";
+        }
+        reviewsService.addBorrow_records(borrow_records);
+        return "redirect:/reviews";
+    }
+    @RequestMapping("/returncommit")
+    public String returncommit(Borrow_records borrow_records, int userId, int bookid) {
+        //判断是否为空
+        if (userId == 0 || bookid == 0) {
+            return "fail.html";
+        }
+        reviewsService.deleteBorrow_records(borrow_records);
+        return "redirect:/reviews";
+    }
+    @RequestMapping("/updatecommit")
+    public String updatecommit(Borrow_records borrow_records, int userId, int bookid) {
+        return reviewsService.updateBorrow_records(borrow_records)==0?"fail.html":"redirect:/reviews";
+    }
+
+
+
+}

src/main/java/com/c202201020242/task1/task1/dao/Borrow_recordsMapper.java

@@ -0,0 +1,20 @@
+package com.c202201020242.task1.task1.dao;
+
+import com.c202201020242.task1.task1.model.Books;
+import com.c202201020242.task1.task1.model.Borrow_records;
+import com.c202201020242.task1.task1.model.Reviews;
+import org.apache.ibatis.annotations.Mapper;
+
+import java.util.List;
+
+@Mapper
+public interface Borrow_recordsMapper {
+    public List<Borrow_records> findBorrow_recordsByUserId(int userId);
+    //增加
+    public int addBorrow_records(Borrow_records borrow_records);
+    //删除
+    public int deleteBorrow_records(Borrow_records borrow_records);
+    //修改
+    public int updateBorrow_records(Borrow_records borrow_records);
+
+}

src/main/java/com/c202201020242/task1/task1/dao/ReviewsMapper.java

@@ -0,0 +1,19 @@
+package com.c202201020242.task1.task1.dao;
+
+import com.c202201020242.task1.task1.model.Books;
+import com.c202201020242.task1.task1.model.Reviews;
+import org.apache.ibatis.annotations.Mapper;
+import org.springframework.core.annotation.Order;
+
+import java.util.List;
+
+@Mapper
+public interface ReviewsMapper {
+    /*public List<Reviews> findReviewsByUsersId(String userid);
+    public int addReviews(Reviews reviews);
+    //根据用户名查询评论
+    public List<Reviews> findReviewsByUsername(String username);*/
+    public List<Order> findReviewByTitle(String title);
+    public List<Books> findBookByUserId(int userId);
+
+}

src/main/java/com/c202201020242/task1/task1/model/Borrow_records.java

@@ -0,0 +1,13 @@
+package com.c202201020242.task1.task1.model;
+
+import lombok.Data;
+
+import java.util.List;
+
+@Data
+public class Borrow_records {
+    private int id;
+    private int userId;
+    private int bookid;
+    private List<Books> booksList;
+}

src/main/java/com/c202201020242/task1/task1/model/Reviews.java

@@ -0,0 +1,11 @@
+package com.c202201020242.task1.task1.model;
+
+import lombok.Data;
+
+@Data
+public class Reviews {
+    private int id;
+    private String bookname;
+    private String reviews;
+    private String username;
+}

src/main/java/com/c202201020242/task1/task1/service/Impl/ReviewsServiceImpl.java

@@ -0,0 +1,42 @@
+package com.c202201020242.task1.task1.service.Impl;
+
+import com.c202201020242.task1.task1.dao.BooksMapper;
+import com.c202201020242.task1.task1.dao.Borrow_recordsMapper;
+import com.c202201020242.task1.task1.dao.ReviewsMapper;
+import com.c202201020242.task1.task1.model.Books;
+import com.c202201020242.task1.task1.model.Borrow_records;
+import com.c202201020242.task1.task1.model.Reviews;
+import com.c202201020242.task1.task1.service.BooksService;
+import com.c202201020242.task1.task1.service.ReviewsService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class ReviewsServiceImpl implements ReviewsService {
+    @Autowired
+    ReviewsMapper reviewsMapper;
+    @Autowired
+    Borrow_recordsMapper borrow_recordsMapper;
+
+    @Override
+    public List<Books> findBookByUserId(int userId) {
+        return reviewsMapper.findBookByUserId(userId);
+    }
+
+    @Override
+    public int addBorrow_records(Borrow_records borrow_records) {
+        return borrow_recordsMapper.addBorrow_records(borrow_records);
+    }
+
+    @Override
+    public int deleteBorrow_records(Borrow_records borrow_records) {
+        return borrow_recordsMapper.deleteBorrow_records(borrow_records);
+    }
+
+    @Override
+    public int updateBorrow_records(Borrow_records borrow_records) {
+        return borrow_recordsMapper.updateBorrow_records(borrow_records);
+    }
+}

src/main/java/com/c202201020242/task1/task1/service/ReviewsService.java

@@ -0,0 +1,15 @@
+package com.c202201020242.task1.task1.service;
+
+import com.c202201020242.task1.task1.model.Books;
+import com.c202201020242.task1.task1.model.Borrow_records;
+import com.c202201020242.task1.task1.model.Reviews;
+
+import java.util.List;
+
+public interface ReviewsService {
+    public List<Books> findBookByUserId(int userId);
+    public int addBorrow_records(Borrow_records borrow_records);
+    public int deleteBorrow_records(Borrow_records borrow_records);
+    public int updateBorrow_records(Borrow_records borrow_records);
+
+}

src/main/resources/application.properties

@@ -2,7 +2,7 @@ spring.application.name=task
 spring.web.resources.static-locations=classpath:/img/,file:C:/Users/??/Desktop/Photos
 spring.servlet.multipart.max-file-size=1000MB
 sprign.servlet.multipart.max-request-size=10000MB
-
+server.port=8081
 #?????
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
 

src/main/resources/mapper/Borrow_recordsMapper.xml

@@ -0,0 +1,26 @@
+<?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.c202201020242.task1.task1.dao.Borrow_recordsMapper">
+    <select id="findBorrow_recordsByUserId" resultMap="xxx">
+        SELECT * FROM borrow_records202201020242 WHERE userid=#{userId}
+    </select>
+    <resultMap id="xxx" type="com.c202201020242.task1.task1.model.Borrow_records">
+        <id column="id" property="id"/>
+        <result property="userId" column="userid"/>
+        <result property="bookid" column="bookid"/>
+        <collection property="booksList"
+                    ofType="com.c202201020242.task1.task1.model.Books"
+                    column="bookid"
+                    select="com.c202201020242.task1.task1.dao.BooksMapper.findBookByBookid">
+        </collection>
+    </resultMap>
+    <insert id="addBorrow_records" parameterType="com.c202201020242.task1.task1.model.Borrow_records">
+        INSERT INTO borrow_records202201020242(userid,bookid) VALUES(#{userId},#{bookid})
+    </insert>
+    <delete id="deleteBorrow_records" parameterType="int">
+        DELETE FROM borrow_records202201020242 WHERE userid=#{userId} and bookid=#{bookid}
+    </delete>
+    <update id="updateBorrow_records" parameterType="com.c202201020242.task1.task1.model.Borrow_records">
+        UPDATE borrow_records202201020242 SET bookid=#{bookid} WHERE userid=#{id}
+    </update>
+</mapper>

src/main/resources/mapper/ReviewsMapper.xml

@@ -0,0 +1,29 @@
+<?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.c202201020242.task1.task1.dao.ReviewsMapper">
+    <!--查询所有评论-->
+    <select id="findReviewsByUsersId" parameterType="String" resultType="com.c202201020242.task1.task1.model.Reviews">
+        SELECT * FROM reviews202201020242 WHERE username=#{username}
+    </select>
+    <insert id="addReviews" parameterType="com.c202201020242.task1.task1.model.Reviews">
+        INSERT INTO reviews202201020242(username,bookname,reviews) VALUES(#{username},#{bookname},#{reviews})
+    </insert>
+    <!--根据用户名查询评论-->
+    <select id="findReviewsByUsername" parameterType="String" resultType="com.c202201020242.task1.task1.model.Reviews">
+        SELECT * FROM reviews202201020242 WHERE username=#{username}
+    </select>
+
+   <select id="findReviewByTitle" resultType="com.c202201020242.task1.task1.model.Reviews">
+        SELECT * FROM reviews202201020242 WHERE bookname=#{title}
+   </select>
+    <select id="findBookByUserId" resultType="com.c202201020242.task1.task1.model.Reviews">
+        select * from books202201020242 where id in (
+        SELECT bookid FROM borrow_records202201020242 WHERE userid=#{userId})
+    </select>
+
+</mapper>
+
+<!--
+author：202201020242 李木
+time：2024年10月13日
+-->

src/main/resources/templates/addreview.html

@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>添加书籍评论</title>
+</head>
+<body>
+<h5>添加书籍评论</h5>
+<form th:action="@{/addreviewcommit}" method="post">
+  <input type="text" name="bookname" placeholder="输入书名"/></br>
+  <input type="text" name="reviews" placeholder="说些什么吧"/></br>
+  <input type="text" name="username" placeholder="输入您的用户名"/></br></br>
+  <input type="submit" value="评论"/>
+</form>
+</body>
+</html>

src/main/resources/templates/borrow.html

@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>借阅书籍</title>
+</head>
+<body>
+<h5>借阅书籍</h5>
+<form th:action="@{/borrowcommit}" method="post">
+  <input type="text" name="bookid" placeholder="输入书名编号"/></br>
+  <input type="text" name="userId" placeholder="您的用户编号"/></br></br>
+  <input type="submit" value="借阅"/>
+</form>
+</body>
+</html>

src/main/resources/templates/return.html

@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>归坏书籍</title>
+</head>
+<body>
+<h5>归还书籍</h5>
+<form th:action="@{/returncommit}" method="post">
+  <input type="text" name="bookid" placeholder="输入要归还的书籍编号"/></br>
+  <input type="text" name="userId" placeholder="您的用户编号"/></br></br>
+  <input type="submit" value="归还"/>
+</form>
+</body>
+</html>

src/main/resources/templates/updateborrow.html

@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Title</title>
+</head>
+<body>
+<h5>修改借阅书籍信息</h5>
+<form th:action="@{/updatecommit}" method="post">
+  <input type="text" name="bookid"  placeholder="输入新的书编号"/></br>
+  <input type="text" name="userId" placeholder="您的用户编号"/></br></br>
+  <input type="submit" value="确定"/>
+</form>
+</body>
+</html>