feat(warning): 新增按语言环境查询键盘警告消息接口

src/main/java/com/yolo/keyborad/controller/KeyboardWarningMessageController.java

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+package com.yolo.keyborad.controller;
+
+import com.yolo.keyborad.common.BaseResponse;
+import com.yolo.keyborad.common.ResultUtils;
+import com.yolo.keyborad.model.vo.warning.KeyboardWarningMessageRespVO;
+import com.yolo.keyborad.service.KeyboardWarningMessageService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+/*
+ * @author: ziin
+ * @date: 2026/2/28
+ */
+@RestController
+@RequestMapping("/keyboardWarningMessage")
+@Tag(name = "注销提示信息")
+public class KeyboardWarningMessageController {
+
+    private final KeyboardWarningMessageService keyboardWarningMessageService;
+
+    public KeyboardWarningMessageController(KeyboardWarningMessageService keyboardWarningMessageService) {
+        this.keyboardWarningMessageService = keyboardWarningMessageService;
+    }
+
+    @GetMapping("/byLocale")
+    @Operation(summary = "按 locale 查询提示信息", description = "根据 locale 查询用户注销提示信息")
+    public BaseResponse<KeyboardWarningMessageRespVO> getByLocale(
+            @Parameter(description = "地区/语言标识，例如：zh-CN、en-US", required = true)
+            @RequestParam("locale") String locale
+    ) {
+        return ResultUtils.success(keyboardWarningMessageService.getByLocale(locale));
+    }
+}

src/main/java/com/yolo/keyborad/mapper/KeyboardWarningMessageMapper.java

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+package com.yolo.keyborad.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.yolo.keyborad.model.entity.KeyboardWarningMessage;
+
+/*
+* @author: ziin
+* @date: 2026/2/28 13:39
+*/
+    
+public interface KeyboardWarningMessageMapper extends BaseMapper<KeyboardWarningMessage> {
+}

src/main/java/com/yolo/keyborad/model/entity/KeyboardWarningMessage.java

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+package com.yolo.keyborad.model.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import io.swagger.v3.oas.annotations.media.Schema;
+import java.util.Date;
+import lombok.Data;
+
+/*
+* @author: ziin
+* @date: 2026/2/28 13:39
+*/
+    
+/**
+ * 用户注销提示信息表
+ */
+@Schema(description="用户注销提示信息表")
+@Data
+@TableName(value = "keyboard_warning_message")
+public class KeyboardWarningMessage {
+    /**
+     * 主键
+     */
+    @TableId(value = "id", type = IdType.AUTO)
+    @Schema(description="主键")
+    private Long id;
+
+    /**
+     * 地区
+     */
+    @TableField(value = "\"locale\"")
+    @Schema(description="地区")
+    private String locale;
+
+    /**
+     * 正文
+     */
+    @TableField(value = "content")
+    @Schema(description="正文")
+    private String content;
+
+    /**
+     * 更新时间
+     */
+    @TableField(value = "updated_at")
+    @Schema(description="更新时间")
+    private Date updatedAt;
+}

src/main/java/com/yolo/keyborad/model/vo/warning/KeyboardWarningMessageRespVO.java

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+package com.yolo.keyborad.model.vo.warning;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import java.util.Date;
+import lombok.Data;
+
+@Schema(description = "用户注销提示信息返回")
+@Data
+public class KeyboardWarningMessageRespVO {
+
+    @Schema(description = "地区")
+    private String locale;
+
+    @Schema(description = "正文")
+    private String content;
+
+    @Schema(description = "更新时间")
+    private Date updatedAt;
+}
+

src/main/java/com/yolo/keyborad/service/KeyboardWarningMessageService.java

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+package com.yolo.keyborad.service;
+
+import com.yolo.keyborad.model.entity.KeyboardWarningMessage;
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.yolo.keyborad.model.vo.warning.KeyboardWarningMessageRespVO;
+    /*
+* @author: ziin
+* @date: 2026/2/28 13:39
+*/
+    
+public interface KeyboardWarningMessageService extends IService<KeyboardWarningMessage>{
+
+    KeyboardWarningMessageRespVO getByLocale(String locale);
+
+}

src/main/java/com/yolo/keyborad/service/impl/KeyboardWarningMessageServiceImpl.java

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+package com.yolo.keyborad.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.yolo.keyborad.common.ErrorCode;
+import com.yolo.keyborad.exception.BusinessException;
+import com.yolo.keyborad.mapper.KeyboardWarningMessageMapper;
+import com.yolo.keyborad.model.entity.KeyboardWarningMessage;
+import com.yolo.keyborad.model.vo.warning.KeyboardWarningMessageRespVO;
+import com.yolo.keyborad.service.KeyboardWarningMessageService;
+import org.springframework.stereotype.Service;
+import org.springframework.util.StringUtils;
+/*
+* @author: ziin
+* @date: 2026/2/28 13:39
+*/
+    
+@Service
+public class KeyboardWarningMessageServiceImpl extends ServiceImpl<KeyboardWarningMessageMapper, KeyboardWarningMessage> implements KeyboardWarningMessageService{
+
+    @Override
+    public KeyboardWarningMessageRespVO getByLocale(String locale) {
+        final String normalizedLocale = locale == null ? null : locale.trim();
+        if (!StringUtils.hasText(normalizedLocale)) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR);
+        }
+
+        final LambdaQueryWrapper<KeyboardWarningMessage> queryWrapper = new LambdaQueryWrapper<KeyboardWarningMessage>()
+                .eq(KeyboardWarningMessage::getLocale, normalizedLocale);
+        final KeyboardWarningMessage warningMessage = this.getOne(queryWrapper);
+        if (warningMessage == null) {
+            throw new BusinessException(ErrorCode.NOT_FOUND_ERROR);
+        }
+
+        final KeyboardWarningMessageRespVO respVO = new KeyboardWarningMessageRespVO();
+        respVO.setLocale(warningMessage.getLocale());
+        respVO.setContent(warningMessage.getContent());
+        respVO.setUpdatedAt(warningMessage.getUpdatedAt());
+        return respVO;
+    }
+}

src/main/resources/mapper/KeyboardWarningMessageMapper.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.yolo.keyborad.mapper.KeyboardWarningMessageMapper">
+  <resultMap id="BaseResultMap" type="com.yolo.keyborad.model.entity.KeyboardWarningMessage">
+    <!--@mbg.generated-->
+    <!--@Table keyboard_warning_message-->
+    <id column="id" jdbcType="BIGINT" property="id" />
+    <result column="locale" jdbcType="VARCHAR" property="locale" />
+    <result column="content" jdbcType="VARCHAR" property="content" />
+    <result column="updated_at" jdbcType="TIMESTAMP" property="updatedAt" />
+  </resultMap>
+  <sql id="Base_Column_List">
+    <!--@mbg.generated-->
+    id, "locale", content, updated_at
+  </sql>
+</mapper>