Enhance/ts-339 refactor code in springbootdemo and JDBCDemo (#7866)

* fix confilct

* refactor code in springbootdemo

tests/examples/JDBC/JDBCDemo/pom.xml

@@ -17,7 +17,7 @@
         <dependency>
             <groupId>com.taosdata.jdbc</groupId>
             <artifactId>taos-jdbcdriver</artifactId>
-            <version>2.0.31</version>
+            <version>2.0.34</version>
         </dependency>
     </dependencies>
 

tests/examples/JDBC/JDBCDemo/src/main/java/com/taosdata/example/JdbcDemo.java

@@ -7,6 +7,9 @@ public class JdbcDemo {
     private static String host;
     private static final String dbName = "test";
     private static final String tbName = "weather";
+    private static final String user = "root";
+    private static final String password = "taosdata";
+
     private Connection connection;
 
     public static void main(String[] args) {
@@ -30,10 +33,9 @@ public class JdbcDemo {
     }
 
     private void init() {
-        final String url = "jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata";
+        final String url = "jdbc:TAOS://" + host + ":6030/?user=" + user + "&password=" + password;
         // get connection
         try {
-            Class.forName("com.taosdata.jdbc.TSDBDriver");
             Properties properties = new Properties();
             properties.setProperty("charset", "UTF-8");
             properties.setProperty("locale", "en_US.UTF-8");
@@ -42,8 +44,7 @@ public class JdbcDemo {
             connection = DriverManager.getConnection(url, properties);
             if (connection != null)
                 System.out.println("[ OK ] Connection established.");
-        } catch (ClassNotFoundException | SQLException e) {
-            System.out.println("[ ERROR! ] Connection establish failed.");
+        } catch (SQLException e) {
             e.printStackTrace();
         }
     }
@@ -74,7 +75,7 @@ public class JdbcDemo {
     }
 
     private void select() {
-        final String sql = "select * from "+ dbName + "." + tbName;
+        final String sql = "select * from " + dbName + "." + tbName;
         executeQuery(sql);
     }
 
@@ -89,8 +90,6 @@ public class JdbcDemo {
         }
     }
 
-    /************************************************************************/
-
     private void executeQuery(String sql) {
         long start = System.currentTimeMillis();
         try (Statement statement = connection.createStatement()) {
@@ -117,7 +116,6 @@ public class JdbcDemo {
         }
     }
 
-
     private void printSql(String sql, boolean succeed, long cost) {
         System.out.println("[ " + (succeed ? "OK" : "ERROR!") + " ] time cost: " + cost + " ms, execute statement ====> " + sql);
     }
@@ -132,7 +130,6 @@ public class JdbcDemo {
             long end = System.currentTimeMillis();
             printSql(sql, false, (end - start));
             e.printStackTrace();
-
         }
     }
 
@@ -141,5 +138,4 @@ public class JdbcDemo {
         System.exit(0);
     }
 
-
-}
+}
\ No newline at end of file

tests/examples/JDBC/JDBCDemo/src/main/java/com/taosdata/example/JdbcRestfulDemo.java

@@ -4,14 +4,15 @@ import java.sql.*;
 import java.util.Properties;
 
 public class JdbcRestfulDemo {
-    private static final String host = "127.0.0.1";
+    private static final String host = "localhost";
+    private static final String dbname = "test";
+    private static final String user = "root";
+    private static final String password = "taosdata";
 
     public static void main(String[] args) {
         try {
-            // load JDBC-restful driver
-            Class.forName("com.taosdata.jdbc.rs.RestfulDriver");
             // use port 6041 in url when use JDBC-restful
-            String url = "jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata";
+            String url = "jdbc:TAOS-RS://" + host + ":6041/?user=" + user + "&password=" + password;
 
             Properties properties = new Properties();
             properties.setProperty("charset", "UTF-8");
@@ -21,12 +22,12 @@ public class JdbcRestfulDemo {
             Connection conn = DriverManager.getConnection(url, properties);
             Statement stmt = conn.createStatement();
 
-            stmt.execute("drop database if exists restful_test");
-            stmt.execute("create database if not exists restful_test");
-            stmt.execute("use restful_test");
-            stmt.execute("create table restful_test.weather(ts timestamp, temperature float) tags(location nchar(64))");
-            stmt.executeUpdate("insert into t1 using restful_test.weather tags('北京') values(now, 18.2)");
-            ResultSet rs = stmt.executeQuery("select * from restful_test.weather");
+            stmt.execute("drop database if exists " + dbname);
+            stmt.execute("create database if not exists " + dbname);
+            stmt.execute("use " + dbname);
+            stmt.execute("create table " + dbname + ".weather(ts timestamp, temperature float) tags(location nchar(64))");
+            stmt.executeUpdate("insert into t1 using " + dbname + ".weather tags('北京') values(now, 18.2)");
+            ResultSet rs = stmt.executeQuery("select * from " + dbname + ".weather");
             ResultSetMetaData meta = rs.getMetaData();
             while (rs.next()) {
                 for (int i = 1; i <= meta.getColumnCount(); i++) {
@@ -38,8 +39,6 @@ public class JdbcRestfulDemo {
             rs.close();
             stmt.close();
             conn.close();
-        } catch (ClassNotFoundException e) {
-            e.printStackTrace();
         } catch (SQLException e) {
             e.printStackTrace();
         }

tests/examples/JDBC/JDBCDemo/src/main/java/com/taosdata/example/SubscribeDemo.java

@@ -34,9 +34,8 @@ public class SubscribeDemo {
             System.out.println(usage);
             return;
         }
-        /*********************************************************************************************/
+
         try {
-            Class.forName("com.taosdata.jdbc.TSDBDriver");
             Properties properties = new Properties();
             properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
             properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");

tests/examples/JDBC/springbootdemo/pom.xml

@@ -60,12 +60,15 @@
             </exclusions>
         </dependency>
 
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-aop</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>com.taosdata.jdbc</groupId>
             <artifactId>taos-jdbcdriver</artifactId>
-            <version>2.0.28</version>
-<!--            <scope>system</scope>-->
-<!--            <systemPath>${project.basedir}/src/main/resources/taos-jdbcdriver-2.0.28-dist.jar</systemPath>-->
+            <version>2.0.34</version>
         </dependency>
 
         <dependency>

tests/examples/JDBC/springbootdemo/src/main/java/com/taosdata/example/springbootdemo/SpringbootdemoApplication.java

@@ -4,7 +4,7 @@ import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
-@MapperScan(basePackages = {"com.taosdata.example.springbootdemo.dao"})
+@MapperScan(basePackages = {"com.taosdata.example.springbootdemo"})
 @SpringBootApplication
 public class SpringbootdemoApplication {
 

tests/examples/JDBC/springbootdemo/src/main/java/com/taosdata/example/springbootdemo/controller/WeatherController.java

@@ -15,35 +15,21 @@ public class WeatherController {
     @Autowired
     private WeatherService weatherService;
 
-    /**
-     * create database and table
-     *
-     * @return
-     */
+    @GetMapping("/lastOne")
+    public Weather lastOne() {
+        return weatherService.lastOne();
+    }
+
     @GetMapping("/init")
     public int init() {
         return weatherService.init();
     }
 
-    /**
-     * Pagination Query
-     *
-     * @param limit
-     * @param offset
-     * @return
-     */
     @GetMapping("/{limit}/{offset}")
     public List<Weather> queryWeather(@PathVariable Long limit, @PathVariable Long offset) {
         return weatherService.query(limit, offset);
     }
 
-    /**
-     * upload single weather info
-     *
-     * @param temperature
-     * @param humidity
-     * @return
-     */
     @PostMapping("/{temperature}/{humidity}")
     public int saveWeather(@PathVariable float temperature, @PathVariable float humidity) {
         return weatherService.save(temperature, humidity);

tests/examples/JDBC/springbootdemo/src/main/java/com/taosdata/example/springbootdemo/dao/WeatherMapper.java

@@ -8,6 +8,8 @@ import java.util.Map;
 
 public interface WeatherMapper {
 
+    Map<String, Object> lastOne();
+
     void dropDB();
 
     void createDB();

tests/examples/JDBC/springbootdemo/src/main/java/com/taosdata/example/springbootdemo/dao/WeatherMapper.xml

@@ -9,20 +9,48 @@
         <result column="humidity" jdbcType="FLOAT" property="humidity"/>
     </resultMap>
 
+    <select id="lastOne" resultType="java.util.Map">
+        select last_row(*), location, groupid
+        from test.weather
+    </select>
+
     <update id="dropDB">
-        drop database if exists test
+        drop
+        database if exists test
     </update>
 
     <update id="createDB">
-        create database if not exists test
+        create
+        database if not exists test
     </update>
 
     <update id="createSuperTable">
-        create table if not exists test.weather(ts timestamp, temperature float, humidity float) tags(location nchar(64), groupId int)
+        create table if not exists test.weather
+        (
+            ts
+            timestamp,
+            temperature
+            float,
+            humidity
+            float,
+            note
+            binary
+        (
+            64
+        )) tags
+        (
+            location nchar
+        (
+            64
+        ), groupId int)
     </update>
 
     <update id="createTable" parameterType="com.taosdata.example.springbootdemo.domain.Weather">
-        create table if not exists test.t#{groupId} using test.weather tags(#{location}, #{groupId})
+        create table if not exists test.t#{groupId} using test.weather tags
+        (
+            #{location},
+            #{groupId}
+        )
     </update>
 
     <select id="select" resultMap="BaseResultMap">
@@ -36,25 +64,29 @@
     </select>
 
     <insert id="insert" parameterType="com.taosdata.example.springbootdemo.domain.Weather">
-        insert into test.t#{groupId} (ts, temperature, humidity) values (#{ts}, ${temperature}, ${humidity})
+        insert into test.t#{groupId} (ts, temperature, humidity, note)
+        values (#{ts}, ${temperature}, ${humidity}, #{note})
     </insert>
 
     <select id="getSubTables" resultType="String">
-        select tbname from test.weather
+        select tbname
+        from test.weather
     </select>
 
     <select id="count" resultType="int">
-        select count(*) from test.weather
+        select count(*)
+        from test.weather
     </select>
 
     <resultMap id="avgResultSet" type="com.taosdata.example.springbootdemo.domain.Weather">
-        <id column="ts" jdbcType="TIMESTAMP" property="ts" />
-        <result column="avg(temperature)" jdbcType="FLOAT" property="temperature" />
-        <result column="avg(humidity)" jdbcType="FLOAT" property="humidity" />
+        <id column="ts" jdbcType="TIMESTAMP" property="ts"/>
+        <result column="avg(temperature)" jdbcType="FLOAT" property="temperature"/>
+        <result column="avg(humidity)" jdbcType="FLOAT" property="humidity"/>
     </resultMap>
 
     <select id="avg" resultMap="avgResultSet">
-        select avg(temperature), avg(humidity)from test.weather interval(1m)
+        select avg(temperature), avg(humidity)
+        from test.weather interval(1m)
     </select>
 
 </mapper>
\ No newline at end of file

tests/examples/JDBC/springbootdemo/src/main/java/com/taosdata/example/springbootdemo/domain/Weather.java

@@ -11,6 +11,7 @@ public class Weather {
     private Float temperature;
     private Float humidity;
     private String location;
+    private String note;
     private int groupId;
 
     public Weather() {
@@ -61,4 +62,12 @@ public class Weather {
     public void setGroupId(int groupId) {
         this.groupId = groupId;
     }
+
+    public String getNote() {
+        return note;
+    }
+
+    public void setNote(String note) {
+        this.note = note;
+    }
 }

tests/examples/JDBC/springbootdemo/src/main/java/com/taosdata/example/springbootdemo/service/WeatherService.java

@@ -29,6 +29,7 @@ public class WeatherService {
             Weather weather = new Weather(new Timestamp(ts + (thirtySec * i)), 30 * random.nextFloat(), random.nextInt(100));
             weather.setLocation(locations[random.nextInt(locations.length)]);
             weather.setGroupId(i % locations.length);
+            weather.setNote("note-" + i);
             weatherMapper.createTable(weather);
             count += weatherMapper.insert(weather);
         }
@@ -58,4 +59,21 @@ public class WeatherService {
     public List<Weather> avg() {
         return weatherMapper.avg();
     }
+
+    public Weather lastOne() {
+        Map<String, Object> result = weatherMapper.lastOne();
+
+        long ts = (long) result.get("ts");
+        float temperature = (float) result.get("temperature");
+        float humidity = (float) result.get("humidity");
+        String note = (String) result.get("note");
+        int groupId = (int) result.get("groupid");
+        String location = (String) result.get("location");
+
+        Weather weather = new Weather(new Timestamp(ts), temperature, humidity);
+        weather.setNote(note);
+        weather.setGroupId(groupId);
+        weather.setLocation(location);
+        return weather;
+    }
 }

tests/examples/JDBC/springbootdemo/src/main/java/com/taosdata/example/springbootdemo/util/TaosAspect.java

+package com.taosdata.example.springbootdemo.util;
+
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.springframework.stereotype.Component;
+
+import java.sql.Timestamp;
+import java.util.Map;
+
+@Aspect
+@Component
+public class TaosAspect {
+
+    @Around("execution(java.util.Map<String,Object> com.taosdata.example.springbootdemo.dao.*.*(..))")
+    public Object handleType(ProceedingJoinPoint joinPoint) {
+        Map<String, Object> result = null;
+        try {
+            result = (Map<String, Object>) joinPoint.proceed();
+            for (String key : result.keySet()) {
+                Object obj = result.get(key);
+                if (obj instanceof byte[]) {
+                    obj = new String((byte[]) obj);
+                    result.put(key, obj);
+                }
+                if (obj instanceof Timestamp) {
+                    obj = ((Timestamp) obj).getTime();
+                    result.put(key, obj);
+                }
+            }
+        } catch (Throwable e) {
+            e.printStackTrace();
+        }
+        return result;
+    }
+}

tests/examples/JDBC/springbootdemo/src/main/resources/application.properties

 # datasource config - JDBC-JNI
 #spring.datasource.driver-class-name=com.taosdata.jdbc.TSDBDriver
-#spring.datasource.url=jdbc:TAOS://127.0.0.1:6030/test?timezone=UTC-8&charset=UTF-8&locale=en_US.UTF-8
+#spring.datasource.url=jdbc:TAOS://localhost:6030/?timezone=UTC-8&charset=UTF-8&locale=en_US.UTF-8
 #spring.datasource.username=root
 #spring.datasource.password=taosdata
-
 # datasource config - JDBC-RESTful
 spring.datasource.driver-class-name=com.taosdata.jdbc.rs.RestfulDriver
-spring.datasource.url=jdbc:TAOS-RS://master:6041/test?timezone=UTC-8&charset=UTF-8&locale=en_US.UTF-8
+spring.datasource.url=jdbc:TAOS-RS://localhsot:6041/test?timezone=UTC-8&charset=UTF-8&locale=en_US.UTF-8
 spring.datasource.username=root
 spring.datasource.password=taosdata
-
 spring.datasource.druid.initial-size=5
 spring.datasource.druid.min-idle=5
 spring.datasource.druid.max-active=5
 spring.datasource.druid.max-wait=30000
 spring.datasource.druid.validation-query=select server_status();
-
+spring.aop.auto=true
+spring.aop.proxy-target-class=true
 #mybatis
 mybatis.mapper-locations=classpath:mapper/*.xml
-
 logging.level.com.taosdata.jdbc.springbootdemo.dao=debug