增加nacos中间件

This commit is contained in:
2026-03-02 17:07:12 +08:00
parent f467a1064e
commit dc17788678
10 changed files with 51 additions and 266 deletions

View File

@@ -1,5 +1,6 @@
package cn.mayiming;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

View File

@@ -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;
}
}

View File

@@ -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;
}
}

View File

@@ -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;
}

View File

@@ -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;
}
}

View File

@@ -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);
}

View File

@@ -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}