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feat: sap hana db
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ysy
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@ -185,5 +185,11 @@
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<version>23.5.0.24.07</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>com.sap.cloud.db.jdbc</groupId>
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<artifactId>ngdbc</artifactId>
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<version>2.24.6</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>
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@ -62,6 +62,8 @@ public class DialectFactory implements DriverNamePool {
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return new PhoenixDialect();
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} else if (DRIVER_DM7.equalsIgnoreCase(driverName)) {
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return new DmDialect();
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} else if (DRIVER_HANA.equalsIgnoreCase(driverName)) {
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return new HanaDialect();
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}
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}
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// 无法识别可支持的数据库类型默认使用ANSI方言，可兼容大部分SQL语句
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@ -168,6 +170,9 @@ public class DialectFactory implements DriverNamePool {
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} else if (nameContainsProductInfo.contains("goldendb")) {
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// GoldenDB
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driver = DRIVER_GOLDENDB;
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} else if (nameContainsProductInfo.contains("sap")) {
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// sap hana
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driver = DRIVER_HANA;
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}
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return driver;
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@ -9,7 +9,7 @@ import cn.hutool.core.util.StrUtil;
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* @author Looly
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*/
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public enum DialectName {
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ANSI, MYSQL, ORACLE, POSTGRESQL, SQLITE3, H2, SQLSERVER, SQLSERVER2012, PHOENIX, DM;
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ANSI, MYSQL, ORACLE, POSTGRESQL, SQLITE3, H2, SQLSERVER, SQLSERVER2012, PHOENIX, DM, HANA;
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/**
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* 是否为指定数据库方言，检查时不分区大小写
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@ -120,4 +120,8 @@ public interface DriverNamePool {
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* JDBC 驱动 GoldenDB
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*/
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String DRIVER_GOLDENDB = "com.goldendb.jdbc.Driver";
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/**
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* JDBC 驱动 Sap Hana
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*/
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String DRIVER_HANA = "com.sap.db.jdbc.Driver";
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}
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@ -0,0 +1,93 @@
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package cn.hutool.db.dialect.impl;
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import cn.hutool.core.util.StrUtil;
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import cn.hutool.db.Entity;
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import cn.hutool.db.Page;
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import cn.hutool.db.StatementUtil;
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import cn.hutool.db.dialect.DialectName;
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import cn.hutool.db.sql.SqlBuilder;
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import cn.hutool.db.sql.Wrapper;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.SQLException;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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/**
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* Hana数据库方言
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*
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* @author daoyou.dev
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*/
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public class HanaDialect extends AnsiSqlDialect {
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public HanaDialect() {
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wrapper = new Wrapper('"');
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}
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@Override
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public String dialectName() {
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return DialectName.HANA.name();
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}
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@Override
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protected SqlBuilder wrapPageSql(SqlBuilder find, Page page) {
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// SAP HANA 使用 OFFSET LIMIT 分页
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return find.append(" LIMIT ").append(page.getPageSize())
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.append(" OFFSET ").append(page.getStartPosition());
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}
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/**
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* 构建用于upsert的{@link PreparedStatement}。
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* SAP HANA 使用 MERGE INTO 语法来实现 UPSERT 操作。
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* <p>
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* 生成 SQL 语法为：
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* <pre>
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* MERGE INTO demo AS target
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* USING (SELECT ? AS a, ? AS b, ? AS c FROM DUMMY) AS source
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* ON target.id = source.id
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* WHEN MATCHED THEN
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* UPDATE SET target.a = source.a, target.b = source.b, target.c = source.c
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* WHEN NOT MATCHED THEN
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* INSERT (a, b, c) VALUES (source.a, source.b, source.c);
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* </pre>
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*
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* @param conn 数据库连接对象
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* @param entity 数据实体类（包含表名）
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* @param keys 主键字段数组，通常用于确定匹配条件（联合主键）
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* @return PreparedStatement
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* @throws SQLException SQL 执行异常
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*/
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@Override
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public PreparedStatement psForUpsert(Connection conn, Entity entity, String... keys) throws SQLException {
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SqlBuilder.validateEntity(entity);
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final SqlBuilder builder = SqlBuilder.create(wrapper);
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final List<String> columns = new ArrayList<>();
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final List<Object> values = new ArrayList<>();
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// 构建字段部分和参数占位符部分
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entity.forEach((field, value) -> {
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if (StrUtil.isNotBlank(field)) {
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columns.add(wrapper != null ? wrapper.wrap(field) : field);
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values.add(value);
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}
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});
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String tableName = entity.getTableName();
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if (wrapper != null) {
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tableName = wrapper.wrap(tableName);
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}
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// 构建 UPSERT 语句
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builder.append("UPSERT ").append(tableName).append(" (");
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builder.append(String.join(", ", columns));
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builder.append(") VALUES (");
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builder.append(String.join(", ", Collections.nCopies(columns.size(), "?")));
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builder.append(") WITH PRIMARY KEY");
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return StatementUtil.prepareStatement(conn, builder.toString(), values);
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}
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}
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89
hutool-db/src/test/java/cn/hutool/db/HanaTest.java
Normal file
89
hutool-db/src/test/java/cn/hutool/db/HanaTest.java
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@ -0,0 +1,89 @@
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package cn.hutool.db;
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import cn.hutool.core.lang.Console;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.api.Disabled;
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import org.junit.jupiter.api.Test;
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import java.sql.SQLException;
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import java.util.List;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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/**
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* hana操作单元测试
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*
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* @author daoyou.dev
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*/
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public class HanaTest {
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@BeforeAll
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public static void createTable() throws SQLException {
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Db db = Db.use("hana");
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long count = db.count("SELECT * FROM SYS.TABLES WHERE TABLE_NAME = ? AND SCHEMA_NAME = CURRENT_SCHEMA", "user");
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if (count > 0) {
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db.execute("drop table \"user\"");
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}
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db.execute("CREATE COLUMN TABLE \"user\" (\"id\" INT NOT NULL, \"account\" VARCHAR(255), \"name\" VARCHAR(255), \"text\" VARCHAR(255), \"test1\" VARCHAR(255), \"pass\" VARCHAR(255), PRIMARY KEY (\"id\"))");
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}
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@Test
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@Disabled
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public void insertTest() throws SQLException {
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DbUtil.setReturnGeneratedKeyGlobal(false);
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for (int id = 100; id < 200; id++) {
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Db.use("hana").insert(Entity.create("user")//
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.set("id", id)//
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.set("name", "测试用户" + id)//
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.set("text", "描述" + id)//
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.set("test1", "t" + id)//
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);
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}
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}
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/**
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* 事务测试<br>
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* 更新三条信息，低2条后抛出异常，正常情况下三条都应该不变
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*
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* @throws SQLException SQL异常
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*/
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@Test
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@Disabled
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public void txTest() throws SQLException {
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Db.use("hana").tx(db -> {
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int update = db.update(Entity.create("user").set("text", "描述100"), Entity.create().set("id", 100));
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db.update(Entity.create("user").set("text", "描述101"), Entity.create().set("id", 101));
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if (1 == update) {
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// 手动指定异常，然后测试回滚触发
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throw new RuntimeException("Error");
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}
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db.update(Entity.create("user").set("text", "描述102"), Entity.create().set("id", 102));
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});
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}
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@Test
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@Disabled
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public void pageTest() throws SQLException {
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PageResult<Entity> result = Db.use("hana").page(Entity.create("\"user\""), new Page(2, 10));
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for (Entity entity : result) {
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Console.log(entity.get("id"));
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}
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}
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@Test
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@Disabled
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public void getTimeStampTest() throws SQLException {
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final List<Entity> all = Db.use("hana").findAll("user");
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Console.log(all);
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}
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@Test
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public void upsertTest() throws SQLException {
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DbUtil.setReturnGeneratedKeyGlobal(false);
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Db db = Db.use("hana");
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db.insert(Entity.create("user").set("id", 1).set("account", "ice").set("pass", "123456"));
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db.upsert(Entity.create("user").set("id", 1).set("account", "daoyou").set("pass", "a123456").set("name", "道友"));
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Entity user = db.get(Entity.create("user").set("id", 1));
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System.out.println("user=======" + user.getStr("account") + "___" + user.getStr("pass"));
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assertEquals("daoyou", user.getStr("account"));
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}
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}
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@ -77,3 +77,9 @@ user = SYSDBA
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pass = 123456789
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remarks = true
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[hana]
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url = jdbc:sap://127.0.0.1:30015/HAP_CONN?autoReconnect=true
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user = DB
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pass = 123456
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remarks = true
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