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add BaseMapper.listOrder

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Timi
2025-10-13 10:53:55 +08:00
parent 831d36e095
commit 2fc06e3851
2 changed files with 18 additions and 5 deletions
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9
src/main/java/com/imyeyu/spring/mapper/BaseMapper.java
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@ -8,6 +8,7 @@ import org.apache.ibatis.annotations.SelectProvider;
import org.apache.ibatis.annotations.UpdateProvider;
import java.util.List;
import java.util.Map;
/**
* 基本 SQL 映射，子接口可以不实现
@ -46,6 +47,10 @@ public interface BaseMapper<T, P> {
@SelectProvider(type = SQLProvider.class, method = "count")
long count();
default List<T> list(long offset, int limit) {
return listOrder(offset, limit, null);
}
/**
* 获取部分数据
*
@ -53,8 +58,8 @@ public interface BaseMapper<T, P> {
* @param limit 数据量
* @return 数据列表
*/
@SelectProvider(type = SQLProvider.class, method = "list")
List<T> list(long offset, int limit);
@SelectProvider(type = SQLProvider.class, method = "listOrder")
List<T> listOrder(long offset, int limit, Map<String, OrderType> orderMap);
/**
* 创建数据。默认自增主键为 id，如需修改请重写此接口

14
src/main/java/com/imyeyu/spring/util/SQLProvider.java
View File

@ -50,14 +50,22 @@ public class SQLProvider {
return sql.toString();
}
public String list(ProviderContext context, @Param("offset") Long offset, @Param("limit") Integer limit) {
public String listOrder(ProviderContext context, @Param("offset") Long offset, @Param("limit") Integer limit, @Param("orderMap") Map<String, BaseMapper.OrderType> orderMap) {
EntityMeta meta = getEntityMeta(context);
StringBuilder sql = new StringBuilder();
sql.append("SELECT %s FROM `%s` WHERE 1 = 1".formatted(meta.selectAllClause, meta.table));
if (meta.canDelete) {
sql.append(" AND (`deleted_at` IS NULL OR %s < `deleted_at`)".formatted(Time.now()));
}
return sql.append(" LIMIT #{offset}, #{limit}").toString();
if (TimiJava.isNotEmpty(orderMap)) {
sql.append(" ORDER BY ");
for (Map.Entry<String, BaseMapper.OrderType> item : orderMap.entrySet()) {
sql.append(Text.camelCase2underscore(item.getKey())).append(' ').append(item.getValue().toString());
sql.append(", ");
}
sql.deleteCharAt(sql.length() - 2);
}
return sql.append(" LIMIT %s, %s".formatted(offset, limit)).toString();
}
/**
@ -171,7 +179,7 @@ public class SQLProvider {
return "`%s` = #{%s}".formatted(fc.columnName, fc.fieldName);
})
.collect(Collectors.joining(", "));
return "UPDATE `%s` SET `%s` WHERE `%s` = #{%s}".formatted(meta.table, setClause, meta.idFieldColumn.columnName, meta.idFieldColumn.fieldName);
return "UPDATE `%s` SET %s WHERE `%s` = #{%s}".formatted(meta.table, setClause, meta.idFieldColumn.columnName, meta.idFieldColumn.fieldName);
}
/**