'commit'

FengHuang/src/main/java/UnitTest/StructMysqlToClickHouse.java

@@ -0,0 +1,32 @@
+package UnitTest;
+
+import com.dsideal.FengHuang.Util.ClickHouseUtil;
+import com.jfinal.kit.PropKit;
+import com.jfinal.plugin.activerecord.ActiveRecordPlugin;
+import com.jfinal.plugin.activerecord.CaseInsensitiveContainerFactory;
+import com.jfinal.plugin.druid.DruidPlugin;
+
+public class StructMysqlToClickHouse {
+    public static void main(String[] args) {
+        //告之配置文件位置
+        PropKit.use("application.properties");
+        //安装地区
+        String user = PropKit.get("user");
+        String password = PropKit.get("password");
+        String jdbcUrl = PropKit.get("jdbcUrl");
+        DruidPlugin hp = new DruidPlugin(jdbcUrl, user, password);
+        hp.start();
+
+        // 配置ActiveRecord插件
+        ActiveRecordPlugin arp = new ActiveRecordPlugin(hp);
+        //配置默认小写
+        arp.setContainerFactory(new CaseInsensitiveContainerFactory(true));
+        arp.start();
+
+        //转换的表名称
+        String dbName = "fenghuang_db";
+        String tableName = "t_base_organization";
+        String s = ClickHouseUtil.getSql(dbName, tableName);
+        System.out.println(s);
+    }
+}

FengHuang/src/main/java/com/dsideal/FengHuang/Util/ClickHouseUtil.java

@@ -1,44 +1,31 @@
-package UnitTest;
+package com.dsideal.FengHuang.Util;
 
-import com.jfinal.kit.PropKit;
-import com.jfinal.plugin.activerecord.ActiveRecordPlugin;
-import com.jfinal.plugin.activerecord.CaseInsensitiveContainerFactory;
 import com.jfinal.plugin.activerecord.Db;
 import com.jfinal.plugin.activerecord.Record;
-import com.jfinal.plugin.druid.DruidPlugin;
 
-public class MysqlToClickHouse {
-    public static void main(String[] args) {
-        //告之配置文件位置
-        PropKit.use("application.properties");
-        //安装地区
-        String user = PropKit.get("user");
-        String password = PropKit.get("password");
-        String jdbcUrl = PropKit.get("jdbcUrl");
-        DruidPlugin hp = new DruidPlugin(jdbcUrl, user, password);
-        hp.start();
+import java.util.List;
 
-        // 配置ActiveRecord插件
-        ActiveRecordPlugin arp = new ActiveRecordPlugin(hp);
-        //配置默认小写
-        arp.setContainerFactory(new CaseInsensitiveContainerFactory(true));
-        arp.start();
+public class ClickHouseUtil {
+    public static String getSql(String dbName, String tableName) {
+        String sql = "show create table " + tableName + " ;";
+        Record record = Db.findFirst(sql);
+        String createTable = record.getStr("create table");
 
-        //转换的表名称
-        String tableName = "t_base_term";
-        String sql = "show create table " + tableName+" ;";
-        Record record=Db.findFirst(sql);
-        String createTable =record.getStr("create table");
-        String res = changeMysqlTableToClickHouse(createTable);
-        System.out.println("转换后的建表语句为：");
-        System.out.println(res);
+        sql = "select  column_name from   information_schema.columns where table_name = ? and table_schema = ?";
+        List<Record> list = Db.find(sql, tableName, dbName);
+        for (Record r1 : list) {
+            String column_name = r1.getStr("column_name");
+            createTable = createTable.replaceAll(column_name, column_name.toUpperCase());
+        }
+        String res = change(createTable);
+        return res;
     }
 
     /*
         功能：转换Mysql结构为ClickHouse的表结构语句
     */
-    private static String changeMysqlTableToClickHouse(String tableName) {
-        String tables = tableName;
+    private static String change(String createSql) {
+        String tables = createSql;
         String primaryKey = "`id`";//默认id
         String[] rows = tables.split("\n");
         StringBuilder replaceTables = new StringBuilder();
@@ -77,7 +64,6 @@ public class MysqlToClickHouse {
             // 为空,字符串
             changeRow = changeRow.replaceAll("(` ).*(char).*(DEFAULT NULL)", "` String NULL");
             changeRow = changeRow.replaceAll("(` ).*(char).*(DEFAULT '')", "` String");
-            // changeRow = changeRow.replaceAll("(DEFAULT '')", "NULL");
             // 非空,字符串
             changeRow = changeRow.replaceAll("(` ).*(char).*(NOT NULL)", "` String");
             changeRow = changeRow.replaceAll("text", "String");
@@ -86,7 +72,6 @@ public class MysqlToClickHouse {
 
             // 以空格分割
             String[] changeColumns = changeRow.split("[ ]");
-            //      System.out.println(changeRow);
             // 含有int的替换规则
             if (changeColumns[3].contains("int") || changeColumns[3].contains("bigint")
                     || changeColumns[3].contains("INT")) {
@@ -135,7 +120,7 @@ public class MysqlToClickHouse {
             String temp = replaceTables.substring(0, replaceTables.indexOf(",) ENGINE = Memory"));
             replaceTables = new StringBuilder(temp + ") ENGINE = Memory ");
         }
-        replaceTables.toString().replaceAll("CREATE TABLE `" + tableName + "`", tableName + "_local");
+        replaceTables.toString().replaceAll("CREATE TABLE `" + createSql + "`", createSql + "_local");
         if (haveKey) {
             replaceTables.append("PRIMARY KEY " + primaryKey);
         }
@@ -151,6 +136,12 @@ public class MysqlToClickHouse {
                 break;
             }
         }
+        //修正Timestamp默认值
+        res = res.replace("DEFAULT current_timestamp() ON UPDATE current_timestamp()", "");
+        //删除空行
+        res=res.replaceAll("\n\n","\n");
+
+        res=res.replaceAll("                                                ","");
         return res;
     }
-}
+}