[TD-3173]<feature>: java taosdemo can execute one sql statement by commandline

tests/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/TaosDemoApplication.java

@@ -3,15 +3,17 @@ package com.taosdata.taosdemo;
 import com.taosdata.taosdemo.components.DataSourceFactory;
 import com.taosdata.taosdemo.components.JdbcTaosdemoConfig;
 import com.taosdata.taosdemo.domain.SuperTableMeta;
-import com.taosdata.taosdemo.service.DatabaseService;
-import com.taosdata.taosdemo.service.QueryService;
-import com.taosdata.taosdemo.service.SubTableService;
-import com.taosdata.taosdemo.service.SuperTableService;
+import com.taosdata.taosdemo.service.*;
 import com.taosdata.taosdemo.service.data.SuperTableMetaGenerator;
+import com.taosdata.taosdemo.utils.Printer;
 import org.apache.log4j.Logger;
 
 import javax.sql.DataSource;
 import java.io.IOException;
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
 import java.time.Duration;
 import java.time.Instant;
 import java.util.Arrays;
@@ -32,6 +34,17 @@ public class TaosDemoApplication {
         }
         // 初始化
         final DataSource dataSource = DataSourceFactory.getInstance(config.host, config.port, config.user, config.password);
+        if (config.executeSql != null && !config.executeSql.isEmpty() && !config.executeSql.replaceAll("\\s", "").isEmpty()) {
+            Thread task = new Thread(new SqlExecuteor(dataSource, config.executeSql));
+            task.start();
+            try {
+                task.join();
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+            return;
+        }
+
         final DatabaseService databaseService = new DatabaseService(dataSource);
         final SuperTableService superTableService = new SuperTableService(dataSource);
         final SubTableService subTableService = new SubTableService(dataSource);
@@ -96,7 +109,6 @@ public class TaosDemoApplication {
         // 查询
 
 
-
         /**********************************************************************************/
         // 删除表
         if (config.dropTable) {

tests/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/components/JdbcTaosdemoConfig.java

@@ -42,7 +42,7 @@ public final class JdbcTaosdemoConfig {
     public int rate = 10;
     public long range = 1000l;
     // select task
-
+    public String executeSql;
     // drop task
     public boolean dropTable = false;
 
@@ -89,7 +89,7 @@ public final class JdbcTaosdemoConfig {
         System.out.println("-rate                       The proportion of data out of order. effective only if order is 1. min 0, max 100, default is 10");
         System.out.println("-range                      The range of data out of order. effective only if order is 1. default is 1000 ms");
         // query task
-//        System.out.println("-sqlFile                   The select sql file");
+        System.out.println("-executeSql                 execute a specific sql.");
         // drop task
         System.out.println("-dropTable                  Drop data before quit. Default is false");
         System.out.println("--help                      Give this help list");
@@ -207,6 +207,9 @@ public final class JdbcTaosdemoConfig {
                 range = Integer.parseInt(args[++i]);
             }
             // select task
+            if ("-executeSql".equals(args[i]) && i < args.length - 1) {
+                executeSql = args[++i];
+            }
 
             // drop task
             if ("-dropTable".equals(args[i]) && i < args.length - 1) {

tests/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/SqlExecuteor.java

+package com.taosdata.taosdemo.service;
+
+import com.taosdata.taosdemo.utils.Printer;
+
+import javax.sql.DataSource;
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+public class SqlExecuteor implements Runnable {
+    private final DataSource dataSource;
+    private final String sql;
+
+    public SqlExecuteor(DataSource dataSource, String sql) {
+        this.dataSource = dataSource;
+        this.sql = sql;
+    }
+
+    @Override
+    public void run() {
+        try (Connection conn = dataSource.getConnection(); Statement stmt = conn.createStatement()) {
+            long start = System.currentTimeMillis();
+            boolean execute = stmt.execute(sql);
+            long end = System.currentTimeMillis();
+            if (execute) {
+                ResultSet rs = stmt.getResultSet();
+                Printer.printResult(rs);
+            } else {
+                Printer.printSql(sql, true, (end - start));
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+}

tests/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/utils/Printer.java

+package com.taosdata.taosdemo.utils;
+
+import java.sql.ResultSet;
+import java.sql.ResultSetMetaData;
+import java.sql.SQLException;
+
+public class Printer {
+
+    public static void printResult(ResultSet resultSet) throws SQLException {
+        ResultSetMetaData metaData = resultSet.getMetaData();
+        while (resultSet.next()) {
+            for (int i = 1; i <= metaData.getColumnCount(); i++) {
+                String columnLabel = metaData.getColumnLabel(i);
+                String value = resultSet.getString(i);
+                System.out.printf("%s: %s\t", columnLabel, value);
+            }
+            System.out.println();
+        }
+    }
+
+    public static void printSql(String sql, boolean succeed, long cost) {
+        System.out.println("[ " + (succeed ? "OK" : "ERROR!") + " ] time cost: " + cost + " ms, execute statement ====> " + sql);
+    }
+
+    private Printer() {
+    }
+}