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增加nacos中间件

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This commit is contained in:
马懿铭
2026-03-02 17:07:12 +08:00
parent f467a1064e
commit dc17788678
10 changed files with 51 additions and 266 deletions
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2
javamemories-common/src/main/java/cn/mayiming/App.java
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@@ -4,7 +4,7 @@ package cn.mayiming;
* Hello world!
*
*/
@Spring
public class App
{
public static void main( String[] args )

38
user-service/pom.xml
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@@ -16,20 +16,42 @@
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<mysql.version>8.0.33</mysql.version>
<!-- 显式指定 MyBatis 版本（与 Spring Boot 3.2.3 兼容） -->
<mybatis-spring-boot-starter.version>3.0.3</mybatis-spring-boot-starter.version>
</properties>
<dependencies>
<!-- 核心：Spring Boot Web 依赖（版本由父工程继承） -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<!-- 测试依赖：适配 Spring Boot 3 的 JUnit 5（替换老旧的 JUnit 3.8.1） -->
<!-- 可选：Nacos 配置管理（从 Nacos 读取配置文件） -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>
</dependencies>
</project>
<!-- 构建配置：确保编译和打包正常 -->
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>3.2.3</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

1
user-service/src/main/java/cn/mayiming/App.java
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@@ -1,5 +1,6 @@
package cn.mayiming;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

26
user-service/src/main/java/cn/mayiming/Controller/Redis/RedisParam.java
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@@ -1,26 +0,0 @@
package cn.mayiming.Controller.Redis;
public class RedisParam {
private String key;
private String value;
// 必须加无参构造器（JSON解析需要）
public RedisParam() {}
// GET/SET方法（必须加，否则JSON解析不到值）
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}

22
user-service/src/main/java/cn/mayiming/Controller/Redis/Redistest.java
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@@ -1,22 +0,0 @@
package cn.mayiming.Controller.Redis;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import java.util.concurrent.TimeUnit;
@RestController
public class Redistest {
@Autowired
private StringRedisTemplate stringRedisTemplate;
@PostMapping("/redis/put")
public String put(@RequestBody RedisParam param) {
String key = param.getKey();
stringRedisTemplate.opsForValue().set(key, "123", 10, TimeUnit.MINUTES);
String redisValue = stringRedisTemplate.opsForValue().get(key);
return "Redis写入成功！key=" + key + "，value=" + redisValue;
}
}

22
user-service/src/main/java/cn/mayiming/Controller/UserCon/UserBody.java
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@@ -1,22 +0,0 @@
package cn.mayiming.Controller.UserCon;
public class UserBody {
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String username;
public String password;
}

46
user-service/src/main/java/cn/mayiming/Controller/UserCon/UserController.java
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@@ -1,46 +0,0 @@
package cn.mayiming.Controller.UserCon;
import cn.mayiming.Mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import java.util.HashMap;
import java.util.Map;
@RestController
public class UserController {
@Autowired
private UserMapper userMapper;
@PostMapping("/login")
public Map<String, Object> login(@RequestBody UserBody user) {
Map<String, Object> result = new HashMap<>();
try {
String dbPassword = userMapper.getPasswordByUsername(user.getUsername());
String username = user.getUsername();
String password = user.getPassword();
// 3. 编写 SQL 查询数据库中的用户密码
// 用 ? 占位符，防止 SQL 注入（必须！）
// 4. 验证密码（实际项目要加密对比，这里简单演示）
if (password != null && password.equals(dbPassword)) {
result.put("code", 200);
result.put("msg", "登录成功");
result.put("data", username);
} else {
result.put("code", 400);
result.put("msg", "密码错误");
}
} catch (Exception e) {
// 捕获“用户不存在”等异常
result.put("code", 404);
result.put("msg", "用户名不存在或登录失败");
result.put("error", e.getMessage());
}
return result;
}
}

81
user-service/src/main/java/cn/mayiming/Mapper/UserMapper.java
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@@ -1,81 +0,0 @@
package cn.mayiming.Mapper;
import cn.mayiming.Controller.UserCon.UserBody;
import org.apache.ibatis.annotations.*;
import org.springframework.stereotype.Repository;
import java.util.List;
@Repository
public interface UserMapper {
@Select("SELECT password FROM user WHERE username = #{username}")
String getPasswordByUsername(String username);
/**
* 根据ID查询用户（单条查询）
* @param id 用户ID
* @return 完整用户信息
*/
@Select("SELECT id, username, password, nickname, create_time AS createTime FROM user WHERE id = #{id}")
UserBody getUserById(Long id);
/**
* 根据用户名查询完整用户信息（登录/校验用）
* @param username 用户名
* @return 完整用户信息
*/
@Select("SELECT id, username, password, nickname, create_time AS createTime FROM user WHERE username = #{username}")
UserBody getUserByUsername(String username);
/**
* 查询所有用户（分页建议用 MyBatis-Plus，这里先实现全量）
* @return 用户列表
*/
@Select("SELECT id, username, password, nickname, create_time AS createTime FROM user")
List<UserBody> listAllUsers();
// ==================== 增 ====================
/**
* 新增用户（自增ID）
* @param user 用户实体
* @return 影响行数（1=成功，0=失败）
*/
@Insert("INSERT INTO user (username, password, nickname, create_time) VALUES (#{username}, #{password}, #{nickname}, #{createTime})")
@Options(useGeneratedKeys = true, keyProperty = "id") // 自动返回自增的ID到user对象的id字段
int insertUser(UserBody user);
// ==================== 改 ====================
/**
* 根据ID修改用户昵称
* @param id 用户ID
* @param nickname 新昵称
* @return 影响行数
*/
@Update("UPDATE user SET nickname = #{nickname} WHERE id = #{id}")
int updateNicknameById(@Param("id") Long id, @Param("nickname") String nickname);
/**
* 根据用户名修改密码
* @param username 用户名
* @param newPassword 新密码
* @return 影响行数
*/
@Update("UPDATE user SET password = #{newPassword} WHERE username = #{username}")
int updatePasswordByUsername(@Param("username") String username, @Param("newPassword") String password);
// ==================== 删 ====================
/**
* 根据ID删除用户
* @param id 用户ID
* @return 影响行数
*/
@Delete("DELETE FROM user WHERE id = #{id}")
int deleteUserById(Long id);
/**
* 根据用户名删除用户
* @param username 用户名
* @return 影响行数
*/
@Delete("DELETE FROM user WHERE username = #{username}")
int deleteUserByUsername(String username);
}

41
user-service/src/main/resources/application.yml
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@@ -1,24 +1,21 @@
server:
port: 9091
port: 9090
spring:
data:
redis:
port: 6379
password: ""
database: 0
timeout: 10000
datasource:
# 连接 URL（关键：test_db 是你要连接的数据库名，需提前创建）
url: jdbc:mysql://rm-f8z6oc5a03331500p8o.mysql.rds.aliyuncs.com:3306/test?useUnicode=true&characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true
# 数据库用户名
username: root
# 数据库密码（替换为你的 MySQL 密码）
password: Root123456
# 驱动类名（MySQL 8.x 用这个，5.x 改为 com.mysql.jdbc.Driver）
driver-class-name: com.mysql.cj.jdbc.Driver
# 连接池配置（可选，提升性能）
hikari:
maximum-pool-size: 10 # 最大连接数
minimum-idle: 2 # 最小空闲连接数
idle-timeout: 60000 # 空闲连接超时时间（毫秒）
connection-timeout: 30000 # 连接超时时间（毫秒）
application:
name: user-service
cloud:
nacos:
# 服务注册发现配置
discovery:
server-addr: localhost:8848 # Nacos 服务地址（默认端口 8848）
namespace: public # 命名空间（默认 public，自定义需先在 Nacos 控制台创建）
group: DEFAULT_GROUP # 分组（默认 DEFAULT_GROUP）
service: user-service # 注册到 Nacos 的服务名（建议和子项目 artifactId 一致）
# 配置管理配置（如果引入了 config 依赖才需要）
config:
server-addr: localhost:8848 # 和 discovery 一致
file-extension: yaml # 配置文件格式（yaml/yml/properties）
namespace: public
group: DEFAULT_GROUP
config:
import: nacos:${spring.application.name}.${spring.cloud.nacos.config.file-extension}?server-addr=${spring.cloud.nacos.config.server-addr}

38
user-service/src/test/java/cn/mayiming/AppTest.java
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@@ -1,38 +0,0 @@
package cn.mayiming;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
/**
* Unit test for simple App.
*/
public class AppTest
extends TestCase
{
/**
* Create the test case
*
* @param testName name of the test case
*/
public AppTest( String testName )
{
super( testName );
}
/**
* @return the suite of tests being tested
*/
public static Test suite()
{
return new TestSuite( AppTest.class );
}
/**
* Rigourous Test :-)
*/
public void testApp()
{
assertTrue( true );
}
}