package com.ruoyi.common.helper;
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import cn.hutool.core.convert.Convert;
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import com.baomidou.dynamic.datasource.DynamicRoutingDataSource;
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import com.ruoyi.common.enums.DataBaseType;
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import com.ruoyi.common.exception.ServiceException;
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import com.ruoyi.common.utils.spring.SpringUtils;
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import lombok.AccessLevel;
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import lombok.NoArgsConstructor;
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import javax.sql.DataSource;
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import java.sql.DatabaseMetaData;
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import java.sql.SQLException;
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/**
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* 数据库助手
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*
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* @author Lion Li
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*/
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@NoArgsConstructor(access = AccessLevel.PRIVATE)
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public class DataBaseHelper {
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/**
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* 获取当前数据库类型
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*/
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public static DataBaseType getDataBasyType() {
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DynamicRoutingDataSource ds = (DynamicRoutingDataSource) SpringUtils.getBean(DataSource.class);
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DataSource dataSource = ds.determineDataSource();
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try {
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DatabaseMetaData metaData = dataSource.getConnection().getMetaData();
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String databaseProductName = metaData.getDatabaseProductName();
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return DataBaseType.find(databaseProductName);
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} catch (SQLException e) {
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throw new ServiceException(e.getMessage());
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}
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}
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public static boolean isMySql() {
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return DataBaseType.MY_SQL == getDataBasyType();
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}
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public static boolean isOracle() {
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return DataBaseType.ORACLE == getDataBasyType();
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}
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public static boolean isPostgerSql() {
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return DataBaseType.POSTGRE_SQL == getDataBasyType();
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}
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public static boolean isSqlServer() {
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return DataBaseType.SQL_SERVER == getDataBasyType();
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}
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public static String findInSet(Object var1, String var2) {
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DataBaseType dataBasyType = getDataBasyType();
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if (dataBasyType == DataBaseType.SQL_SERVER) {
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return "charindex(" + Convert.toStr(var1) + ", " + var2 + ") <> 0";
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}
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return "find_in_set(" + Convert.toStr(var1) + ", " + var2 + ") <> 0";
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}
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}
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