src/test/java/com/lunhan/xxx/host/Gauss2Gauss.java | ●●●●● 补丁 | 查看 | 原始文档 | blame | 历史 | |
src/test/java/com/lunhan/xxx/host/GenCodeGauss.java | ●●●●● 补丁 | 查看 | 原始文档 | blame | 历史 | |
src/test/java/com/lunhan/xxx/host/Mysql2Gauss.java | ●●●●● 补丁 | 查看 | 原始文档 | blame | 历史 |
src/test/java/com/lunhan/xxx/host/Gauss2Gauss.java
对比新文件 @@ -0,0 +1,111 @@ package com.lunhan.xxx.host; import com.lunhan.xxx.common.util.ListUtil; import com.lunhan.xxx.common.util.StringUtil; import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; import java.util.List; import java.util.Map; import java.util.Objects; public class Gauss2Gauss { private static final String FROM_HOST = "113.250.189.120"; private static final String FROM_PORT = "57654"; private static final String FROM_USER = "lunhan"; private static final String FROM_PASSWORD = "lunhan.20240330"; private static final String FROM_DB_NAME = "water_trade_center"; private static final String FROM_DRIVER = "org.postgresql.Driver"; private static final String FROM_CONNECTION_STR = "jdbc:postgresql://" + FROM_HOST + ":" + FROM_PORT + "/" + FROM_DB_NAME; private static final String TO_HOST = "113.250.189.120"; private static final String TO_PORT = "57654"; private static final String TO_USER = "lunhan"; private static final String TO_PASSWORD = "lunhan.20240330"; private static final String TO_DB_NAME = "qinghe_wise_water_system"; private static final String TO_DRIVER = "org.postgresql.Driver"; private static final String TO_CONNECTION_STR = "jdbc:postgresql://" + TO_HOST + ":" + TO_PORT + "/" + TO_DB_NAME; private static Connection CONN_FROM = null; private static Connection CONN_TO = null; static { //加载驱动 try { Class.forName(FROM_DRIVER); } catch (ClassNotFoundException e) { e.printStackTrace(); } //获得连接 try { CONN_FROM = DriverManager.getConnection(FROM_CONNECTION_STR, FROM_USER, FROM_PASSWORD); } catch (SQLException e) { e.printStackTrace(); } //加载驱动 try { Class.forName(TO_DRIVER); } catch (ClassNotFoundException e) { e.printStackTrace(); } //获得连接 try { CONN_TO = DriverManager.getConnection(TO_CONNECTION_STR, TO_USER, TO_PASSWORD); } catch (SQLException e) { e.printStackTrace(); } } public static void main(String[] args) throws SQLException { // 创建触发器需要的函数 GenCodeGauss.execSql(CONN_TO, GenCodeGauss.getAutoUpdateTimeFunction()); // 获取mysql所有的表名称 Map<String, String> tables = GenCodeGauss.getTables(CONN_FROM, FROM_DB_NAME); // 遍历表名,获取表结构 for (Map.Entry<String, String> table : tables.entrySet()) { // 获取mysql表结构 List<Map<String, Object>> columns = GenCodeGauss.getColumns(CONN_FROM, table.getKey()); // 获取mysql表的主键 Map<String, String> mapPK = GenCodeGauss.getPK(CONN_FROM, table.getKey()); // 获取mysql表的索引 Map<String, String> mapIndex = GenCodeGauss.getIndex(CONN_FROM, table.getKey()); System.out.println("从mysql查询表结构:" + table.getKey()); // 调用gauss创建表结构 List<String> listGenTable = GenCodeGauss.genTable(table.getKey(), table.getValue(), columns, mapPK, mapIndex); // for (String sql : listGenTable) { // boolean result = GenCodeGauss.execSql(CONN_TO, sql); // System.out.println(sql + ", 执行结果:" + result); // } // 获取mysql表所有数据 String sqlSelect = "SELECT * FROM " + table.getKey(); Integer count = 1; Integer pageSize = 500; String orderBy = "id"; Object lastId = null; while (count > 0) { count = 0; String sql = sqlSelect + (Objects.isNull(lastId) ? "" : " WHERE " + orderBy + " > " + GenCodeGauss.toDBValue(lastId) + "") + " ORDER BY " + orderBy + " LIMIT " + pageSize; List<Map<String, Object>> list = GenCodeGauss.getListAll(CONN_FROM, sql); if (ListUtil.isNullOrEmpty(list)) { continue; } count = list.size(); lastId = list.get(list.size() - 1).get(orderBy); System.out.println("从mysql获取到数据:" + count); // 批量插入gauss数据库 List<String> insertAll = GenCodeGauss.insertAll(list, table.getKey(), 1); // for (String addData : insertAll) { // boolean result = GenCodeGauss.execSql(CONN_TO, addData); // System.out.println(addData + ", 执行结果:" + result); // } String sqlInsert = StringUtil.join(insertAll, "\n"); System.out.println(sqlInsert); } } } } src/test/java/com/lunhan/xxx/host/GenCodeGauss.java
@@ -1594,24 +1594,25 @@ return result; } public static boolean genTable(Connection connect, String tableName, String tableDesc, List<Map<String, Object>> listColumn, Map<String, String> mapPK, Map<String, String> mapIndex) throws SQLException { public static List<String> genTable(String tableName, String tableDesc, List<Map<String, Object>> listColumn, Map<String, String> mapPK, Map<String, String> mapIndex) { List<String> list = new ArrayList<>(); String sql = "CREATE TABLE \"public\".\"" + tableName + "\" (\n"; Map<String, String> mapColumnDesc = new HashMap<>(); int idx = 0; boolean result = Boolean.FALSE; result = GenCodeGauss.execSql(connect, "DROP TABLE IF EXISTS \"public\".\"" + tableName + "\";\n"); list.add("-- \"" + tableName + "\" - \"" + tableDesc + "\"\nDROP TABLE IF EXISTS \"public\".\"" + tableName + "\";\n"); // 遍历列,构建sql for (Map<String, Object> column : listColumn) { idx++; String name = column.get("name").toString(); String type = column.get("type").toString(); String desc = column.get("description").toString(); String isNullable = column.get("isNullable").toString(); Object desc = column.get("description"); Object isNullable = column.get("isNullable"); mapColumnDesc.put(name, desc); mapColumnDesc.put(name, ParameterUtil.dealNullStr(desc)); sql += "\t\"" + name + "\" " + GenCodeGauss.mysqlType2Gauss(type); switch (type) { @@ -1672,7 +1673,7 @@ } sql += ")\n" + ";\n"; result = GenCodeGauss.execSql(connect, sql); list.add(sql); sql = ""; sql += "COMMENT ON TABLE \"public\".\"" + tableName + "\" IS '" + tableDesc + "';\n"; @@ -1680,7 +1681,7 @@ for (Map.Entry<String, String> desc : mapColumnDesc.entrySet()) { sql += "COMMENT ON COLUMN \"public\".\"" + tableName + "\".\"" + desc.getKey() + "\" IS '" + desc.getValue().replace("\r\n", " ").replace("\n", " ") + "';\n"; } result = GenCodeGauss.execSql(connect, sql); list.add("-- 字段描述\n" + sql); sql = ""; // 设置主键 @@ -1690,25 +1691,25 @@ } } sql += "ALTER TABLE \"public\".\"" + tableName + "\" ADD CONSTRAINT \"PK_" + tableName + "\" PRIMARY KEY (\"id\");\n"; result = GenCodeGauss.execSql(connect, sql); list.add("-- 设置主键\n" + sql); sql = ""; // 触发器:自动赋值最后更新时间 sql += "CREATE TRIGGER \"TG_" + tableName + "\" BEFORE INSERT OR UPDATE ON \"public\".\"" + tableName + "\"\n" + "FOR EACH ROW\n" + "EXECUTE PROCEDURE \"public\".\"update_timestamp_column\"();"; result = GenCodeGauss.execSql(connect, sql); list.add("-- 触发器:自动赋值最后更新时间\n" + sql); sql = ""; list.add("-- 创建索引\n"); // 遍历索引,构建sql for (Map.Entry<String, String> index : mapIndex.entrySet()) { if (!mapPK.containsKey(index.getKey())) { sql += "CREATE INDEX \"" + index.getKey() + "\" ON \"public\".\"test_info\"(\"" + index.getValue() + "\");\n"; result = GenCodeGauss.execSql(connect, sql); list.add(sql); sql = ""; } } return result; return list; } private static String mysqlType2Gauss(String type) { @@ -1802,9 +1803,8 @@ return mapPK; } public static List<Map<String, Object>> getListAll(Connection connect, String tableName, String dbSchema) { public static List<Map<String, Object>> getListAll(Connection connect, String sql) { List<Map<String, Object>> result = new ArrayList<>(); String sql = "SELECT * FROM " + dbSchema + "." + tableName; try (PreparedStatement pStmt = connect.prepareStatement(sql)) { try (ResultSet rs = pStmt.executeQuery()) { //获取键名 @@ -1827,8 +1827,8 @@ return result; } public static List<Boolean> insertAll(Connection connect, List<Map<String, Object>> list, String tableName, Integer onceCount) { List<Boolean> result = new ArrayList<>(); public static List<String> insertAll(List<Map<String, Object>> list, String tableName, Integer onceCount) { List<String> result = new ArrayList<>(); String insertSql = "INSERT INTO public." + tableName + "(\""; List<String> listColumn = new ArrayList<>(); for (String column : list.get(0).keySet()) { @@ -1840,7 +1840,6 @@ insertSql += StringUtil.join(listColumn, "\",\"") + "\") VALUES"; String sql = ""; List<Object> listValue = new ArrayList<>(); for (int i = 0; i < list.size(); i++) { if (StringUtil.isNullOrEmpty(sql)) { sql = insertSql; @@ -1854,43 +1853,107 @@ } listColValue.add(item.getValue()); } sql += "\n(" + StringUtil.join(listColValue.stream().map(c -> "?").collect(Collectors.toList())) + "),"; listValue.addAll(listColValue); sql += "\n(" + StringUtil.join(listColValue.stream().map(GenCodeGauss::getSqlValue).collect(Collectors.toList())) + "),"; if (i > 0 && i % onceCount == 0) { sql = sql.substring(0, sql.length() - 1); try (PreparedStatement pStmt = connect.prepareStatement(sql)) { for (int j = 0; j < listValue.size(); j++) { pStmt.setObject(j + 1, listValue.get(j)); } listValue = new ArrayList<>(); boolean insertList = pStmt.execute(); result.add(insertList); System.out.println("插入数据" + Math.max(i - onceCount, 0) + " - " + i + ",结果:" + insertList); } catch (SQLException e) { e.printStackTrace(); } result.add(sql + ";"); sql = ""; } } if (StringUtil.isNotNullOrEmpty(sql)) { sql = sql.substring(0, sql.length() - 1); try (PreparedStatement pStmt = connect.prepareStatement(sql)) { for (int j = 0; j < listValue.size(); j++) { Object value = listValue.get(j); if (Objects.equals("", value)) { // TODO 神奇的gauss,''会判定为null,如果有非空约束,会插入失败 value = " "; } pStmt.setObject(j + 1, value); } listValue = new ArrayList<>(); boolean insertList = pStmt.execute(); result.add(insertList); System.out.println("插入数据" + (list.size() - list.size() % onceCount) + " - " + list.size() + ",结果:" + insertList); } catch (SQLException e) { e.printStackTrace(); } result.add(sql + ";"); } return result; } private static String getSqlValue(Object value) { if (Objects.isNull(value)) { return "null"; } if (value instanceof String) { return "'" + value + "'"; } if (value instanceof Date) { return "'" + LocalDateTimeUtil.toFormatFullString(((Date)value).getTime()) + "'"; } if (value instanceof LocalDate) { return "'" + LocalDateTimeUtil.toFormatString((LocalDate)value) + "'"; } if (value instanceof LocalDateTime) { return "'" + LocalDateTimeUtil.toFormatFullString((LocalDateTime)value) + "'"; } if (value instanceof Calendar) { return "'" + CalendarUtil.toDateTimeMSStr((Calendar)value) + "'"; } return value.toString(); } public static String getAutoUpdateTimeFunction() { return "CREATE OR REPLACE FUNCTION \"public\".\"update_timestamp_column\"()\n" + " RETURNS \"pg_catalog\".\"trigger\" AS $BODY$\n" + "BEGIN\n" + "NEW.update_time := current_timestamp;\n" + "RETURN NEW;\n" + "END;\n" + "$BODY$\n" + " LANGUAGE plpgsql VOLATILE\n" + " COST 100"; } public static List<String> export(Connection connect, String dbSchema, boolean isData, boolean isAutoUpdateTimeFunc) { List<String> listTable = new ArrayList<>(); List<String> listData = new ArrayList<>(); if (isAutoUpdateTimeFunc) { listTable.add(GenCodeGauss.getAutoUpdateTimeFunction()); } // 获取所有表 Map<String, String> tables = GenCodeGauss.getTables(connect, dbSchema); // 遍历所有表 for (Map.Entry<String, String> table : tables.entrySet()) { String tabName = table.getKey(); String tabDesc = table.getValue(); // 获取所有列 List<Map<String, Object>> listCol = GenCodeGauss.getColumns(connect, tabName); Map<String, String> mapPK = GenCodeGauss.getPK(connect, tabName); Map<String, String> mapIndex = GenCodeGauss.getIndex(connect, tabName); // 生成表的sql List<String> listGenTable = GenCodeGauss.genTable(tabName, tabDesc, listCol, mapPK, mapIndex); listTable.addAll(listGenTable); if (isData) { // 获取mysql表所有数据 String sqlSelect = "SELECT * FROM " + table.getKey(); Integer count = 1; Integer pageSize = ConstantFactory.NUM500; String orderBy = "id"; Object lastId = null; while (count > 0) { count = 0; String sql = sqlSelect + (Objects.isNull(lastId) ? "" : " WHERE " + orderBy + " > " + GenCodeGauss.toDBValue(lastId) + "") + " ORDER BY " + orderBy + " LIMIT " + pageSize; List<Map<String, Object>> list = GenCodeGauss.getListAll(connect, sql); if (ListUtil.isNullOrEmpty(list)) { continue; } count = list.size(); lastId = list.get(list.size() - 1).get(orderBy); // 批量插入gauss数据库 List<String> insertAll = GenCodeGauss.insertAll(list, table.getKey(), ConstantFactory.NUM50); listData.add(StringUtil.join(insertAll, "\n")); } } } if (ListUtil.isNotNullOrEmpty(listData)) { listTable.addAll(listData); } return listTable; } } src/test/java/com/lunhan/xxx/host/Mysql2Gauss.java
@@ -1,7 +1,6 @@ package com.lunhan.xxx.host; import com.lunhan.xxx.common.util.ListUtil; import com.lunhan.xxx.common.util.SerializeUtil; import java.sql.Connection; import java.sql.DriverManager; @@ -11,47 +10,47 @@ import java.util.Objects; public class Mysql2Gauss { private static final String Mysql_HOST = "113.250.189.120"; private static final String Mysql_PORT = "23306"; private static final String Mysql_USER = "lunhan"; private static final String Mysql_PASSWORD = "lunhan123"; private static final String Mysql_DB_NAME = "water_basic"; private static final String Mysql_DRIVER = "com.mysql.cj.jdbc.Driver"; private static final String Mysql_CONNECTION_STR = "jdbc:mysql://" + Mysql_HOST + ":" + Mysql_PORT + "/" + Mysql_DB_NAME + "?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&useSSL=false"; private static final String FROM_HOST = "113.250.189.120"; private static final String FROM_PORT = "23306"; private static final String FROM_USER = "lunhan"; private static final String FROM_PASSWORD = "lunhan123"; private static final String FROM_DB_NAME = "water_basic"; private static final String FROM_DRIVER = "com.mysql.cj.jdbc.Driver"; private static final String FROM_CONNECTION_STR = "jdbc:mysql://" + FROM_HOST + ":" + FROM_PORT + "/" + FROM_DB_NAME + "?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&useSSL=false"; private static final String Gauss_HOST = "113.250.189.120"; private static final String Gauss_PORT = "57654"; private static final String Gauss_USER = "lunhan"; private static final String Gauss_PASSWORD = "lunhan.20240330"; private static final String Gauss_DB_NAME = "water_basic"; private static final String Gauss_DRIVER = "org.postgresql.Driver"; private static final String Gauss_CONNECTION_STR = "jdbc:postgresql://" + Gauss_HOST + ":" + Gauss_PORT + "/" + Gauss_DB_NAME; private static final String TO_HOST = "113.250.189.120"; private static final String TO_PORT = "57654"; private static final String TO_USER = "lunhan"; private static final String TO_PASSWORD = "lunhan.20240330"; private static final String TO_DB_NAME = "water_basic"; private static final String TO_DRIVER = "org.postgresql.Driver"; private static final String TO_CONNECTION_STR = "jdbc:postgresql://" + TO_HOST + ":" + TO_PORT + "/" + TO_DB_NAME; private static Connection CONN_Mysql = null; private static Connection CONN_Gauss = null; private static Connection CONN_FROM = null; private static Connection CONN_TO = null; static { //加载驱动 try { Class.forName(Mysql_DRIVER); Class.forName(FROM_DRIVER); } catch (ClassNotFoundException e) { e.printStackTrace(); } //获得连接 try { CONN_Mysql = DriverManager.getConnection(Mysql_CONNECTION_STR, Mysql_USER, Mysql_PASSWORD); CONN_FROM = DriverManager.getConnection(FROM_CONNECTION_STR, FROM_USER, FROM_PASSWORD); } catch (SQLException e) { e.printStackTrace(); } //加载驱动 try { Class.forName(Gauss_DRIVER); Class.forName(TO_DRIVER); } catch (ClassNotFoundException e) { e.printStackTrace(); } //获得连接 try { CONN_Gauss = DriverManager.getConnection(Gauss_CONNECTION_STR, Gauss_USER, Gauss_PASSWORD); CONN_TO = DriverManager.getConnection(TO_CONNECTION_STR, TO_USER, TO_PASSWORD); } catch (SQLException e) { e.printStackTrace(); } @@ -59,7 +58,7 @@ public static void main(String[] args) throws SQLException { // 创建触发器需要的函数 GenCodeGauss.execSql(CONN_Gauss, "CREATE OR REPLACE FUNCTION \"public\".\"update_timestamp_column\"()\n" + GenCodeGauss.execSql(CONN_TO, "CREATE OR REPLACE FUNCTION \"public\".\"update_timestamp_column\"()\n" + " RETURNS \"pg_catalog\".\"trigger\" AS $BODY$\n" + "BEGIN\n" + "NEW.update_time := current_timestamp;\n" + @@ -70,23 +69,26 @@ " COST 100"); // 获取mysql所有的表名称 Map<String, String> tables = GenCodeMysql.getTables(CONN_Mysql, Mysql_DB_NAME); Map<String, String> tables = GenCodeMysql.getTables(CONN_FROM, FROM_DB_NAME); // 遍历表名,获取表结构 for (Map.Entry<String, String> table : tables.entrySet()) { // 获取mysql表结构 List<Map<String, Object>> columns = GenCodeMysql.getColumns(CONN_Mysql, table.getKey(), Mysql_DB_NAME); List<Map<String, Object>> columns = GenCodeMysql.getColumns(CONN_FROM, table.getKey(), FROM_DB_NAME); // 获取mysql表的主键 Map<String, String> mapPK = GenCodeMysql.getPK(CONN_Mysql, table.getKey()); Map<String, String> mapPK = GenCodeMysql.getPK(CONN_FROM, table.getKey()); // 获取mysql表的索引 Map<String, String> mapIndex = GenCodeMysql.getIndex(CONN_Mysql, table.getKey()); Map<String, String> mapIndex = GenCodeMysql.getIndex(CONN_FROM, table.getKey()); System.out.println("从mysql查询表结构:" + table.getKey()); // 调用gauss创建表结构 boolean genTale = GenCodeGauss.genTable(CONN_Gauss, table.getKey(), table.getValue(), columns, mapPK, mapIndex); System.out.println("向gauss数据库创建表结果:" + genTale); List<String> listGenTable = GenCodeGauss.genTable(table.getKey(), table.getValue(), columns, mapPK, mapIndex); for (String sql : listGenTable) { boolean result = GenCodeGauss.execSql(CONN_TO, sql); System.out.println(sql + ", 执行结果:" + result); } // 获取mysql表所有数据 String sqlSelect = "SELECT * FROM " + Mysql_DB_NAME + "." + table.getKey(); String sqlSelect = "SELECT * FROM " + FROM_DB_NAME + "." + table.getKey(); Integer count = 1; Integer pageSize = 500; String orderBy = "id"; @@ -94,7 +96,7 @@ while (count > 0) { count = 0; String sql = sqlSelect + (Objects.isNull(lastId) ? "" : " WHERE " + orderBy + " > " + GenCodeGauss.toDBValue(lastId) + "") + " ORDER BY " + orderBy + " LIMIT " + pageSize; List<Map<String, Object>> list = GenCodeMysql.getListAll(CONN_Mysql, sql); List<Map<String, Object>> list = GenCodeMysql.getListAll(CONN_FROM, sql); if (ListUtil.isNullOrEmpty(list)) { continue; } @@ -103,8 +105,11 @@ System.out.println("从mysql获取到数据:" + count); // 批量插入gauss数据库 List<Boolean> insertAll = GenCodeGauss.insertAll(CONN_Gauss, list, table.getKey(), pageSize); System.out.println("向gauss数据库插入数据结果:" + SerializeUtil.toJson(insertAll)); List<String> insertAll = GenCodeGauss.insertAll(list, table.getKey(), pageSize); for (String addData : insertAll) { boolean result = GenCodeGauss.execSql(CONN_TO, addData); System.out.println(addData + ", 执行结果:" + result); } } } }