feat: mybatis自动填充实现，分页拦截器实现

aioj-backend-common/aioj-backend-common-mybatis/src/main/java/cn/meowrain/backend/common/mybaits/MybatisPlusAutoConfiguration.java

@@ -0,0 +1,27 @@
+package cn.meowrain.backend.common.mybaits;
+
+import cn.meowrain.backend.common.mybaits.config.MybatisPlusMetaObjectHandler;
+import cn.meowrain.backend.common.mybaits.plugins.PaginationInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration(proxyBeanMethods = false)
+public class MybatisPlusAutoConfiguration {
+
+    @Bean
+    public MybatisPlusInterceptor mybatisPlusInterceptor() {
+        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
+        interceptor.addInnerInterceptor(new PaginationInterceptor());
+        return interceptor;
+    }
+
+    /**
+     * 创建并返回MybatisPlusMetaObjectHandler实例，用于审计字段自动填充
+     */
+    @Bean
+    public MybatisPlusMetaObjectHandler mybatisPlusMetaObjectHandler() {
+        return new MybatisPlusMetaObjectHandler();
+    }
+
+}

aioj-backend-common/aioj-backend-common-mybatis/src/main/java/cn/meowrain/backend/common/mybaits/config/MybatisPlusMetaObjectHandler.java

@@ -0,0 +1,70 @@
+package cn.meowrain.backend.common.mybaits.config;
+
+import cn.meowrain.aioj.backend.framework.core.enums.DelStatusEnum;
+import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.ibatis.reflection.MetaObject;
+import org.springframework.security.authentication.AnonymousAuthenticationToken;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.util.ClassUtils;
+
+import java.time.LocalDateTime;
+import java.util.Optional;
+
+/**
+ * MybatisPlus 自动填充处理器，用于实体类字段的自动填充
+ */
+@Slf4j
+public class MybatisPlusMetaObjectHandler implements MetaObjectHandler {
+    @Override
+    public void insertFill(MetaObject metaObject) {
+        log.debug("mybatis plus start insert fill ....");
+        LocalDateTime now = LocalDateTime.now();
+
+        fillValIfNullByName("createTime", now, metaObject, true);
+        fillValIfNullByName("updateTime", now, metaObject, true);
+        fillValIfNullByName("createBy", getUserName(), metaObject, true);
+        fillValIfNullByName("updateBy", getUserName(), metaObject, true);
+
+        // 删除标记自动填充
+        fillValIfNullByName("delFlag", DelStatusEnum.STATUS_NORMAL.code(), metaObject, true);
+    }
+
+    @Override
+    public void updateFill(MetaObject metaObject) {
+        log.debug("mybatis plus start update fill ....");
+        fillValIfNullByName("updateTime", LocalDateTime.now(), metaObject, true);
+        fillValIfNullByName("updateBy", getUserName(), metaObject, true);
+    }
+
+    private void fillValIfNullByName(String fieldName, Object fieldVal, MetaObject metaObject, boolean isCover) {
+        //如果填充值为空
+        if (fieldVal == null) {
+            return;
+        }
+        // 没有 set 方法
+        if (!metaObject.hasSetter(fieldName)) {
+            return;
+        }
+        // field 类型相同时设置
+        Class<?> getterType = metaObject.getGetterType(fieldName);
+        if (ClassUtils.isAssignableValue(getterType, fieldVal)) {
+            metaObject.setValue(fieldName, fieldVal);
+        }
+    }
+
+    private Object getUserName() {
+        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
+        // 匿名接口直接返回
+        if (authentication instanceof AnonymousAuthenticationToken) {
+            return null;
+        }
+
+        if (Optional.ofNullable(authentication).isPresent()) {
+            return authentication.getName();
+        }
+
+        return null;
+    }
+}

aioj-backend-common/aioj-backend-common-mybatis/src/main/java/cn/meowrain/backend/common/mybaits/plugins/PaginationInterceptor.java

@@ -0,0 +1,62 @@
+package cn.meowrain.backend.common.mybaits.plugins;
+
+
+import com.baomidou.mybatisplus.annotation.DbType;
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.core.toolkit.ParameterUtils;
+import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.pagination.dialects.IDialect;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import org.apache.ibatis.executor.Executor;
+import org.apache.ibatis.mapping.BoundSql;
+import org.apache.ibatis.mapping.MappedStatement;
+import org.apache.ibatis.session.ResultHandler;
+import org.apache.ibatis.session.RowBounds;
+
+/**
+ * * 分页拦截器实现类，用于处理分页查询逻辑
+ * * <p>
+ * * 当分页大小小于0时自动设置为0，防止全表查询
+ */
+@Data
+@NoArgsConstructor
+@EqualsAndHashCode(callSuper = false)
+public class PaginationInterceptor extends PaginationInnerInterceptor {
+    /**
+     * 数据库类型
+     * <p>
+     * 查看 {@link #findIDialect(Executor)} 逻辑
+     */
+    private DbType dbType;
+
+    /**
+     * 方言实现类
+     * <p>
+     * 查看 {@link #findIDialect(Executor)} 逻辑
+     */
+    private IDialect dialect;
+
+
+    public PaginationInterceptor(DbType dbType) {
+        this.dbType = dbType;
+    }
+
+    public PaginationInterceptor(IDialect dialect) {
+        this.dialect = dialect;
+    }
+
+    /**
+     * 在执行查询前处理分页参数
+     */
+    @Override
+    public void beforeQuery(Executor executor, MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql) {
+        IPage<?> page = ParameterUtils.findPage(parameter).orElse(null);
+        // size 小于 0 直接设置为 0 , 即不查询任何数据
+        if (null != page && page.getSize() < 0) {
+            page.setSize(0);
+        }
+        super.beforeQuery(executor, ms, page, rowBounds, resultHandler, boundSql);
+    }
+}

aioj-backend-common/aioj-backend-common-mybatis/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports

@@ -1 +1 @@
-com.pig4cloud.pig.common.mybatis.MybatisAutoConfiguration
+cn.meowrain.backend.common.mybaits.MybatisPlusAutoConfiguration