日考14

.gitignore

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+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

pom.xml

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+<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.bwie</groupId>
+    <artifactId>rikao14</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>rikao14</name>
+    <description>Demo project for Spring Boot</description>
+    <properties>
+        <java.version>1.8</java.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <spring-boot.version>2.6.13</spring-boot.version>
+    </properties>
+    <dependencies>
+        <!-- Druid数据库连接池 -->
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>druid-spring-boot-starter</artifactId>
+            <version>1.2.8</version>
+        </dependency>
+        <!-- Mybatis 依赖配置 -->
+        <dependency>
+            <groupId>org.mybatis.spring.boot</groupId>
+            <artifactId>mybatis-spring-boot-starter</artifactId>
+            <version>2.2.2</version>
+        </dependency>
+        <!-- Mysql Connector -->
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>${spring-boot.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                    <encoding>UTF-8</encoding>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>${spring-boot.version}</version>
+                <configuration>
+                    <mainClass>com.bwie.Rikao14Application</mainClass>
+                    <skip>true</skip>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>repackage</id>
+                        <goals>
+                            <goal>repackage</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

src/main/java/com/bwie/Rikao14Application.java

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+package com.bwie;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+@MapperScan("com.bwie.mapper")
+public class Rikao14Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Rikao14Application.class, args);
+    }
+
+}

src/main/java/com/bwie/controller/CommentController.java

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+package com.bwie.controller;
+
+import com.bwie.domain.Comment;
+import com.bwie.service.CommentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+/**
+ * @Author：zhangzhihao
+ * @name：CommentController
+ * @Date：2024/8/7 18:41
+ * 不准抄代码，添加注释，清楚每一行代码意思
+ */
+@RestController
+public class CommentController {
+
+
+    @Autowired
+    private CommentService commentService;
+
+    @PostMapping("/findComment")
+    public List<Comment> findComment(){
+
+       return commentService.findComment();
+
+    }
+
+
+
+
+}

src/main/java/com/bwie/domain/Comment.java

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+package com.bwie.domain;
+
+/**
+ * @Author：zhangzhihao
+ * @name：Comment
+ * @Date：2024/8/7 18:40
+ * 不准抄代码，添加注释，清楚每一行代码意思
+ */
+public class Comment {
+    private String id;
+    private String commentContent;
+    private String creatTime;
+
+    public Comment(String id, String commentContent, String creatTime) {
+        this.id = id;
+        this.commentContent = commentContent;
+        this.creatTime = creatTime;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getCommentContent() {
+        return commentContent;
+    }
+
+    public void setCommentContent(String commentContent) {
+        this.commentContent = commentContent;
+    }
+
+    public String getCreatTime() {
+        return creatTime;
+    }
+
+    public void setCreatTime(String creatTime) {
+        this.creatTime = creatTime;
+    }
+}

src/main/java/com/bwie/mapper/CommentMapper.java

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+package com.bwie.mapper;
+
+import com.bwie.domain.Comment;
+
+import java.util.List;
+
+/**
+ * @Author：zhangzhihao
+ * @name：CommentMapper
+ * @Date：2024/8/7 18:40
+ * 不准抄代码，添加注释，清楚每一行代码意思
+ */
+public interface CommentMapper {
+    List<Comment> findComment();
+
+}

src/main/java/com/bwie/service/CommentService.java

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+package com.bwie.service;
+
+import com.bwie.domain.Comment;
+
+import java.util.List;
+
+/**
+ * @Author：zhangzhihao
+ * @name：Comment
+ * @Date：2024/8/7 18:40
+ * 不准抄代码，添加注释，清楚每一行代码意思
+ */
+public interface CommentService {
+    List<Comment> findComment();
+}

src/main/java/com/bwie/service/Impl/CommentServiceImpl.java

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+package com.bwie.service.Impl;
+
+import com.bwie.domain.Comment;
+import com.bwie.mapper.CommentMapper;
+import com.bwie.service.CommentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+/**
+ * @Author：zhangzhihao
+ * @name：CommentServiceImpl
+ * @Date：2024/8/7 18:40
+ * 不准抄代码，添加注释，清楚每一行代码意思
+ */
+@Service
+public class CommentServiceImpl implements CommentService {
+
+    @Autowired
+    private CommentMapper commentMapper;
+
+    @Override
+    public List<Comment> findComment() {
+        return commentMapper.findComment();
+    }
+}

src/main/resources/application.yml

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+# spring配置
+spring:
+  redis:
+    host: 49.235.138.50
+    port: 6379
+    password: 12345678901zzh
+  datasource:
+    druid:
+      stat-view-servlet:
+        enabled: true
+        loginUsername: bwie
+        loginPassword: 123456
+    driver-class-name: com.mysql.cj.jdbc.Driver
+    url: jdbc:mysql://49.235.138.50:3306/rikao14?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=true&serverTimezone=GMT%2B8
+    username: root
+    password: 12345678901@zzh
+    type: com.alibaba.druid.pool.DruidDataSource
+
+# mybatis配置
+mybatis:
+  # 搜索指定包别名
+  typeAliasesPackage: com.bwie.domain
+  # 配置mapper的扫描，找到所有的mapper.xml映射文件
+  mapperLocations: classpath:mapper/**/*.xml
+  configuration:
+    map-underscore-to-camel-case: true
+# 将mapper接口所在包的日志级别改成debug，可以在控制台打印sql

src/main/resources/mapper/CommentMapper.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.mapper.CommentMapper">
+
+
+    <select id="findComment" resultType="com.bwie.domain.Comment">
+        select * from t_comment order by creat_time desc
+    </select>
+</mapper>

src/test/java/com/bwie/Rikao14ApplicationTests.java

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+package com.bwie;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class Rikao14ApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}