postgresql数据类型与jdbc、java类型对应

编号	数据库类型	JDBC类型	JDBC索引
1	varchar	java.lang.String	12
2	char	java.lang.String	1
3	cidr	java.lang.Object	1,111
4	inet	java.lang.Object	1,111
5	macaddr	java.lang.Object	1,111
6	text	java.lang.String	12
7	int8	java.lang.Long	-5
8	bytea	byte	-2
9	box	java.lang.Object	1,111
10	circle	java.lang.Object	1,111
11	float8	java.lang.Double	8
12	int4	java.lang.Integer	4
13	interval	java.lang.Object	1,111
14	line	java.lang.Object	1,111
15	lseg	java.lang.Object	1,111
16	money	java.lang.Double	8
17	numeric	java.math.BigDecimal	2
18	path	java.lang.Object	1,111
19	point	java.lang.Object	1,111
20	polygon	java.lang.Object	1,111
21	float4	java.lang.Float	7
22	int2	java.lang.Integer	5
23	int4	java.lang.Integer	4
24	time	java.sql.Time	92
25	timestamp	java.sql.Timestamp	93
26	bit	java.lang.Boolean	-7
27	varbit	java.lang.Object	1,111
28	bool	java.lang.Boolean	-7

 

pg数组对应对应java类型为：java.sql.Array。如下：

try {
 
 String[] usa = {"New York", "Chicago", "San Francisco"};
 String[] canada = {"Montreal", "Toronto", "Vancouver"};
 String[] uk = {"London", "Birmingham", "Oxford"};

 /*
 Convert String[] to java.sql.Array using JDBC API
 */
 Array arrayUSA = conn.createArrayOf("text", usa);
 Array arrayCanada = conn.createArrayOf("text", canada);
 Array arrayUK = conn.createArrayOf("text", uk);
 String sql = "INSERT INTO city_example VALUES (?, ?)";
 PreparedStatement pstmt = conn.prepareStatement(sql);
 
 pstmt.setString(1, "USA");
 pstmt.setArray(2, arrayUSA);
 pstmt.executeUpdate();
 
 pstmt.setString(1, "Canada");
 pstmt.setArray(2, arrayCanada);
 pstmt.executeUpdate();
 pstmt.setString(1, "UK");
 pstmt.setArray(2, arrayUK);
 pstmt.executeUpdate();
 
 conn.commit();
} catch (Exception e) {
 
 System.out.println(e.getMessage());
 e.printStackTrace();
}