（5）FlinkSQL将socket数据写入到mysql方式二

public static void main(String[] args) throws Exception {

    StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
    env.setParallelism(1);
    StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env);
    DataStreamSource streamSource = env.socketTextStream("127.0.0.1", 9999,"\n");
    SingleOutputStreamOperator waterDS = streamSource.map(new MapFunction() {
        @Override
        public WaterSensor map(String s) throws Exception {
            String[] split = s.split(",");
            return new WaterSensor(split[0], Long.parseLong(split[1]), Integer.parseInt(split[2]));
        }
    });

    // 将流转化为表
    Table table = tableEnv.fromDataStream(waterDS,
            $("id"),
            $("ts"),
            $("vc"),
            $("pt").proctime());

    tableEnv.createTemporaryView("EventTable", table);


    tableEnv.executeSql("CREATE TABLE flinksink (" +
            "componentname STRING," +
            "componentcount BIGINT NOT NULL," +
            "componentsum BIGINT" +
            ") WITH (" +
            "'connector.type' = 'jdbc'," +
            "'connector.url' = 'jdbc:mysql://localhost:3306/testdb?characterEncoding=UTF-8&useUnicode=true&useSSL=false&tinyInt1isBit=false&allowPublicKeyRetrieval=true&serverTimezone=Asia/Shanghai'," +
            "'connector.table' = 'flinksink'," +
            "'connector.driver' =  'com.mysql.cj.jdbc.Driver'," +
            "'connector.username' = 'root'," +
            "'connector.password' = 'root'," +
            "'connector.write.flush.max-rows'='3'\r\n" +
            ")"
    );
    Table mysql_user = tableEnv.from("flinksink");
    mysql_user.printSchema();

    Table result = tableEnv.sqlQuery(
            "SELECT " +
                    "id as componentname, " +                //window_start, window_end,
                    "COUNT(ts) as componentcount ,SUM(ts) as componentsum " +
                    "FROM TABLE( " +
                    "TUMBLE( TABLE EventTable , " +
                    "DESCRIPTOR(pt), " +
                    "INTERVAL '10' SECOND)) " +
                    "GROUP BY id , window_start, window_end"
    );

    //方式一：写入数据库

// result.executeInsert("flinksink").print(); //;.insertInto("flinksink");

    //方式二：写入数据库
    tableEnv.createTemporaryView("ResultTable", result);
    tableEnv.executeSql("insert into flinksink SELECT * FROM ResultTable").print();

// tableEnv.toAppendStream(result, Row.class).print("toAppendStream"); //追加模式

    env.execute();
}