基础版本完成

borrow-service/pom.xml

@@ -0,0 +1,41 @@
+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.example</groupId>
+        <artifactId>SpringCloudStudy</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+
+    <groupId>org.example</groupId>
+    <artifactId>borrow-service</artifactId>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </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>
+        </dependency>
+        <dependency>
+            <groupId>org.example</groupId>
+            <artifactId>commons</artifactId>
+            <version>0.0.1-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>org.example</groupId>
+            <artifactId>commons</artifactId>
+            <version>0.0.1-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+</project>

borrow-service/src/main/java/com/test/BorrowApplication.java

@@ -0,0 +1,18 @@
+package com.test;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * ClassName: BorrowApplication
+ * Package: com.test
+ *
+ * @author yovinchen
+ * @Create 2023/8/14 16:25
+ */
+@SpringBootApplication
+public class BorrowApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(BorrowApplication.class, args);
+    }
+}

borrow-service/src/main/java/com/test/controller/BorrowController.java

@@ -0,0 +1,29 @@
+package com.test.controller;
+
+import com.test.entity.UserBorrowDetail;
+import com.test.service.BorrowService;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+
+
+/**
+ * ClassName: BorrowController
+ * Package: com.test.controller
+ *
+ * @author yovinchen
+ * @Create 2023/8/14 21:30
+ */
+@RestController
+public class BorrowController {
+
+    @Resource
+    BorrowService service;
+
+    @RequestMapping("/borrow/{uid}")
+    UserBorrowDetail findUserBorrows(@PathVariable("uid") int uid){
+        return service.getUserBorrowDetailByUid(uid);
+    }
+}

borrow-service/src/main/java/com/test/entity/UserBorrowDetail.java

@@ -0,0 +1,20 @@
+package com.test.entity;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+import java.util.List;
+
+/**
+ * ClassName: com.test.entity.UserBorrowDetail
+ * Package: PACKAGE_NAME
+ *
+ * @author yovinchen
+ * @Create 2023/8/14 21:22
+ */
+@Data
+@AllArgsConstructor
+public class UserBorrowDetail {
+    User user;
+    List<Book> bookList;
+}

borrow-service/src/main/java/com/test/mapper/BorrowMapper.java

@@ -0,0 +1,26 @@
+package com.test.mapper;
+
+import com.test.entity.Borrow;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+/**
+ * ClassName: BorrowMapper
+ * Package: com.test.mapper
+ *
+ * @author yovinchen
+ * @Create 2023/8/14 17:04
+ */
+@Mapper
+public interface BorrowMapper {
+    @Select("select * from DB_BORROW where uid = #{uid}")
+    List<Borrow> getBorrowsByUid(int uid);
+
+    @Select("select * from DB_BORROW where bid = #{bid}")
+    List<Borrow> getBorrowsByBid(int bid);
+
+    @Select("select * from DB_BORROW where bid = #{bid} and uid = #{uid}")
+    Borrow getBorrow(int uid, int bid);
+}

borrow-service/src/main/java/com/test/service/BorrowService.java

@@ -0,0 +1,16 @@
+package com.test.service;
+
+import com.test.entity.User;
+import com.test.entity.UserBorrowDetail;
+
+/**
+ * ClassName: BorrowService
+ * Package: com.test.service
+ *
+ * @author yovinchen
+ * @Create 2023/8/14 17:04
+ */
+public interface BorrowService {
+
+    UserBorrowDetail getUserBorrowDetailByUid(int uid);
+}

borrow-service/src/main/java/com/test/service/impl/BorrowServiceImpl.java

@@ -0,0 +1,43 @@
+package com.test.service.impl;
+
+
+
+import com.test.entity.Book;
+import com.test.entity.Borrow;
+import com.test.entity.User;
+import com.test.entity.UserBorrowDetail;
+import com.test.mapper.BorrowMapper;
+import com.test.service.BorrowService;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestTemplate;
+
+import javax.annotation.Resource;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * ClassName: BorrowServiceImpl
+ * Package: com.test.service.impl
+ *
+ * @author yovinchen
+ * @Create 2023/8/14 21:25
+ */
+@Service
+public class BorrowServiceImpl implements BorrowService {
+
+    @Resource
+    BorrowMapper mapper;
+
+    @Override
+    public UserBorrowDetail getUserBorrowDetailByUid(int uid) {
+        List<Borrow> borrow = mapper.getBorrowsByUid(uid);
+        //RestTemplate支持多种方式的远程调用
+        RestTemplate template = new RestTemplate();
+        //这里通过调用getForObject来请求其他服务，并将结果自动进行封装
+        //获取User信息
+        User user = template.getForObject("http://localhost:8101/user/" + uid, User.class);
+        //获取每一本书的详细信息
+        List<Book> bookList = borrow.stream().map(b -> template.getForObject("http://localhost:8201/book/" + b.getBid(), Book.class)).collect(Collectors.toList());
+        return new UserBorrowDetail(user, bookList);
+    }
+}

borrow-service/src/main/resources/application.yml

@@ -0,0 +1,8 @@
+server:
+  port: 8301
+spring:
+  datasource:
+    driver-class-name: com.mysql.cj.jdbc.Driver
+    url: jdbc:mysql://43.143.164.194:3306/mac
+    username: mac
+    password: mactest