Greenplum数据库连接
maven配置
<!-- https://mvnrepository.com/artifact/org.postgresql/postgresql -->
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.1.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-beanutils/commons-beanutils -->
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.9.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-collections/commons-collections -->
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.2.1</version>
</dependency>
db.properties
# 1.posgresql
posgresql_driver=org.postgresql.Driver
posgresql_url=jdbc:postgresql://192.168.xx.xx:5432/数据库名称(即schema)
posgresql_user=账号
posgresql_password=密码
# 2.greenplum
greenplum_driver=com.pivotal.jdbc.GreenplumDriver
greenplum_url=jdbc:pivotal:greenplum://192.168.xx.xx:5432;DatabaseName=数据库名称(即schema)
greenplum_user=账号
greenplum_password=密码
连接Greenplum数据库和Postgresql数据库如下所示:
1 public class JdbcUtils {
2
3 // 1、Postgresql
4 private static String postgresql_driver;
5 private static String postgresql_url;
6 private static String postgresql_user;
7 private static String postgresql_password;
8
9 // 2、Greenplum
10 private static String greenplum_driver;
11 private static String greenplum_url;
12 private static String greenplum_user;
13 private static String greenplum_password;
14
15 // 1、Postgresql
16 static {
17 postgresql_driver = ResourceBundle.getBundle("db").getString("postgresql_driver");
18 postgresql_url = ResourceBundle.getBundle("db").getString("postgresql_url");
19 postgresql_user = ResourceBundle.getBundle("db").getString("postgresql_user");
20 postgresql_password = ResourceBundle.getBundle("db").getString("postgresql_password");
21 }
22
23 // 2、Greenplum
24 static {
25 greenplum_driver = ResourceBundle.getBundle("db").getString("greenplum_driver");
26 greenplum_url = ResourceBundle.getBundle("db").getString("greenplum_url");
27 greenplum_user = ResourceBundle.getBundle("db").getString("greenplum_user");
28 greenplum_password = ResourceBundle.getBundle("db").getString("greenplum_password");
29 }
30
31
32 // 1、Postgresql
33 public static Connection getPostgresqlConnection() throws ClassNotFoundException, SQLException {
34 // 加载数据库驱动
35 Class.forName(postgresql_driver);
36 // System.out.println("测试加载数据库成功");
37 Connection con = DriverManager.getConnection(postgresql_url, postgresql_user, postgresql_password);
38 // System.out.println("测试数据库链接成功");
39 return con;
40 }
41
42 // 2、Greenplum
43 public static Connection getGreenplumConnection() throws ClassNotFoundException, SQLException {
44 // 加载数据库驱动
45 Class.forName(greenplum_driver);
46 //System.out.println("测试加载数据库成功");
47 Connection con = DriverManager.getConnection(greenplum_url, greenplum_user, greenplum_password);
48 //System.out.println("测试数据库链接成功");
49 return con;
50 }
51
52 public static void main(String[] args) {
53 try {
54 JdbcUtils.getPostgresqlConnection();
55 System.out.println("汇聚数据区连接成功.....");
56 System.out.println("=======================================");
57
58 JdbcUtils.getGreenplumConnection();
59 System.out.println("核心数据区连接成功.....");
60 System.out.println("=======================================");
61
62 } catch (ClassNotFoundException e) {
63 e.printStackTrace();
64 } catch (SQLException e) {
65 e.printStackTrace();
66 }
67 }
68 }