【8.0.1】【db】更新最大排序数获取方法

kernel-d-db/db-api/src/main/java/cn/stylefeng/roses/kernel/db/api/maxsort/MaxCountConfig.java

@@ -0,0 +1,26 @@
+package cn.stylefeng.roses.kernel.db.api.maxsort;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+/**
+ * 获取表中排序字段最大数的封装
+ *
+ * @author fengshuonan
+ * @since 2023/10/29 16:58
+ */
+@Data
+@AllArgsConstructor
+public class MaxCountConfig {
+
+    /**
+     * 表名称
+     */
+    private String tableName;
+
+    /**
+     * 排序字段的名称
+     */
+    private String sortFieldName;
+
+}

kernel-d-db/db-api/src/main/java/cn/stylefeng/roses/kernel/db/api/maxsort/MaxSortCollectorApi.java

@@ -0,0 +1,21 @@
+package cn.stylefeng.roses.kernel.db.api.maxsort;
+
+import java.util.Map;
+
+/**
+ * 获取最大排序字段配置的接口
+ *
+ * @author fengshuonan
+ * @since 2023/10/29 17:03
+ */
+public interface MaxSortCollectorApi {
+
+    /**
+     * 通过此接口采集各个模块的最大排序数字的配置
+     *
+     * @author fengshuonan
+     * @since 2023/10/29 17:05
+     */
+    Map<String, MaxCountConfig> createMaxSortConfigs();
+
+}

kernel-d-db/db-api/src/main/java/cn/stylefeng/roses/kernel/db/api/maxsort/context/MaxSortConfigContext.java

@@ -0,0 +1,37 @@
+package cn.stylefeng.roses.kernel.db.api.maxsort.context;
+
+import cn.stylefeng.roses.kernel.db.api.maxsort.MaxCountConfig;
+
+import java.util.Map;
+
+/**
+ * 获取最大排序字段配置的上下文容器
+ *
+ * @author fengshuonan
+ * @since 2023/10/29 17:24
+ */
+public class MaxSortConfigContext {
+
+    private static Map<String, MaxCountConfig> MAX_COUNT_CONFIG_MAP = null;
+
+    /**
+     * 从配置容器获取配置
+     *
+     * @author fengshuonan
+     * @since 2023/10/29 17:24
+     */
+    public static MaxCountConfig getConfig(String code) {
+        return MAX_COUNT_CONFIG_MAP.get(code);
+    }
+
+    /**
+     * 初始化配置
+     *
+     * @author fengshuonan
+     * @since 2023/10/29 17:24
+     */
+    public static void initConfig(Map<String, MaxCountConfig> totalConfigs) {
+        MAX_COUNT_CONFIG_MAP = totalConfigs;
+    }
+
+}

kernel-d-db/db-api/src/main/java/cn/stylefeng/roses/kernel/db/api/maxsort/listener/TableMaxSortConfigListener.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright [2020-2030] [https://www.stylefeng.cn]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Guns采用APACHE LICENSE 2.0开源协议，您在使用过程中，需要注意以下几点：
+ *
+ * 1.请不要删除和修改根目录下的LICENSE文件。
+ * 2.请不要删除和修改Guns源码头部的版权声明。
+ * 3.请保留源码和相关描述文件的项目出处，作者声明等。
+ * 4.分发源码时候，请注明软件出处 https://gitee.com/stylefeng/guns
+ * 5.在修改包名，模块名称，项目代码等时，请注明软件出处 https://gitee.com/stylefeng/guns
+ * 6.若您的项目无法满足以上几点，可申请商业授权
+ */
+package cn.stylefeng.roses.kernel.db.api.maxsort.listener;
+
+import cn.stylefeng.roses.kernel.db.api.maxsort.MaxCountConfig;
+import cn.stylefeng.roses.kernel.db.api.maxsort.MaxSortCollectorApi;
+import cn.stylefeng.roses.kernel.db.api.maxsort.context.MaxSortConfigContext;
+import cn.stylefeng.roses.kernel.rule.listener.ApplicationStartedListener;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.BeansException;
+import org.springframework.boot.context.event.ApplicationStartedEvent;
+import org.springframework.core.Ordered;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 项目启动后，获取所有表的最大排序数的配置
+ *
+ * @author fengshuonan
+ * @since 2023/10/29 17:17
+ */
+@Slf4j
+public class TableMaxSortConfigListener extends ApplicationStartedListener implements Ordered {
+
+    @Override
+    public void eventCallback(ApplicationStartedEvent event) {
+
+        // 获取所有的配置信息
+        Map<String, MaxSortCollectorApi> maxSortCollectorApiMap = null;
+        try {
+            maxSortCollectorApiMap = event.getApplicationContext().getBeansOfType(MaxSortCollectorApi.class);
+        } catch (BeansException e) {
+            // ignore
+            return;
+        }
+
+        // 添加到配置容器中
+        Collection<MaxSortCollectorApi> values = maxSortCollectorApiMap.values();
+        Map<String, MaxCountConfig> totalConfigs = new HashMap<>();
+        for (MaxSortCollectorApi value : values) {
+            Map<String, MaxCountConfig> maxSortConfigs = value.createMaxSortConfigs();
+            totalConfigs.putAll(maxSortConfigs);
+        }
+        MaxSortConfigContext.initConfig(totalConfigs);
+    }
+
+    @Override
+    public int getOrder() {
+        return LOWEST_PRECEDENCE;
+    }
+
+}

kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/dboperator/DbOperatorImpl.java

@@ -85,6 +85,12 @@ public class DbOperatorImpl implements DbOperatorApi {
         String sql = StrUtil.format(sqlTemplate, fieldName, tempFieldName, tableName);
 
         Map<String, Object> oneResult = SqlRunner.db().selectOne(sql);
+
+        // 查询不到，直接返回最大值-100
+        if (oneResult == null) {
+            return -100L;
+        }
+
         Object maxSort = oneResult.get(tempFieldName);
 
         return Convert.toLong(maxSort);

kernel-d-db/db-spring-boot-starter/src/main/resources/META-INF/spring.factories

@@ -4,3 +4,5 @@ org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
   cn.stylefeng.roses.kernel.db.starter.ProjectMyBatisPlusAutoConfiguration,\
   cn.stylefeng.roses.kernel.db.starter.ProjectDruidMonitorAutoConfiguration,\
   cn.stylefeng.roses.kernel.db.starter.RemoveDruidAdAutoConfiguration
+org.springframework.context.ApplicationListener=\
+  cn.stylefeng.roses.kernel.db.api.maxsort.listener.TableMaxSortConfigListener

kernel-s-system/system-api/src/main/java/cn/stylefeng/roses/kernel/sys/api/exception/enums/MaxSortExceptionEnum.java

@@ -0,0 +1,36 @@
+package cn.stylefeng.roses.kernel.sys.api.exception.enums;
+
+import cn.stylefeng.roses.kernel.rule.constants.RuleConstants;
+import cn.stylefeng.roses.kernel.rule.exception.AbstractExceptionEnum;
+import lombok.Getter;
+
+/**
+ * 获取最大排序数量
+ *
+ * @author fengshuonan
+ * @since 2023/10/29 17:46
+ */
+@Getter
+public enum MaxSortExceptionEnum implements AbstractExceptionEnum {
+
+    /**
+     * 编码不存在
+     */
+    CANT_FIND_CODE(RuleConstants.USER_OPERATION_ERROR_TYPE_CODE + "10001", "编码不存在，无法获取");
+
+    /**
+     * 错误编码
+     */
+    private final String errorCode;
+
+    /**
+     * 提示用户信息
+     */
+    private final String userTip;
+
+    MaxSortExceptionEnum(String errorCode, String userTip) {
+        this.errorCode = errorCode;
+        this.userTip = userTip;
+    }
+
+}

kernel-s-system/system-api/src/main/java/cn/stylefeng/roses/kernel/sys/api/maxsort/SystemMaxSortFieldConfig.java

@@ -0,0 +1,26 @@
+package cn.stylefeng.roses.kernel.sys.api.maxsort;
+
+import cn.stylefeng.roses.kernel.db.api.maxsort.MaxCountConfig;
+import cn.stylefeng.roses.kernel.db.api.maxsort.MaxSortCollectorApi;
+import org.springframework.stereotype.Service;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * system模块的最大排序数获取的配置
+ *
+ * @author fengshuonan
+ * @since 2023/10/29 17:51
+ */
+@Service
+public class SystemMaxSortFieldConfig implements MaxSortCollectorApi {
+
+    @Override
+    public Map<String, MaxCountConfig> createMaxSortConfigs() {
+        HashMap<String, MaxCountConfig> stringMaxCountConfigHashMap = new HashMap<>();
+        stringMaxCountConfigHashMap.put("user", new MaxCountConfig("sys_user", "user_sort"));
+        return stringMaxCountConfigHashMap;
+    }
+
+}

kernel-s-system/system-business-portal/src/main/java/cn/stylefeng/roses/kernel/sys/modular/common/MaxCountController.java

@@ -0,0 +1,52 @@
+package cn.stylefeng.roses.kernel.sys.modular.common;
+
+import cn.stylefeng.roses.kernel.db.api.DbOperatorApi;
+import cn.stylefeng.roses.kernel.db.api.maxsort.MaxCountConfig;
+import cn.stylefeng.roses.kernel.db.api.maxsort.context.MaxSortConfigContext;
+import cn.stylefeng.roses.kernel.rule.exception.base.ServiceException;
+import cn.stylefeng.roses.kernel.rule.pojo.response.ResponseData;
+import cn.stylefeng.roses.kernel.rule.pojo.response.SuccessResponseData;
+import cn.stylefeng.roses.kernel.scanner.api.annotation.ApiResource;
+import cn.stylefeng.roses.kernel.scanner.api.annotation.GetResource;
+import cn.stylefeng.roses.kernel.sys.api.exception.enums.MaxSortExceptionEnum;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+
+/**
+ * 最大排序获取
+ *
+ * @author fengshuonan
+ * @since 2023/10/29 17:08
+ */
+@RestController
+@ApiResource(name = "最大排序获取")
+public class MaxCountController {
+
+    @Resource
+    private DbOperatorApi dbOperatorApi;
+
+    /**
+     * 业务排序获取
+     * <p>
+     * 给前端使用
+     *
+     * @author fengshuonan
+     * @since 2023/10/29 17:59
+     */
+    @GetResource(name = "业务排序获取", path = "/common/getBusinessMaxSort")
+    public ResponseData<Long> getBusinessMaxSort(@RequestParam("code") String code) {
+        MaxCountConfig config = MaxSortConfigContext.getConfig(code);
+        if (config == null) {
+            throw new ServiceException(MaxSortExceptionEnum.CANT_FIND_CODE);
+        }
+        Long maxSort = dbOperatorApi.getMaxSortByTableName(config.getTableName(), config.getSortFieldName());
+
+        // 默认返回排序数加1
+        maxSort++;
+
+        return new SuccessResponseData<>(maxSort);
+    }
+
+}