1、下载安装包

官网：http://www.postgresql.org/download/ 按自己需求，下载安装包，

我下载的windows版32位的。http://get.enterprisedb.com/postgresql/postgresql-9.4.0-1-windows.exe

2、安装

执行下载包，进行安装，请一定记住你输入的密码，如“pg”

3、打开数据库，创建表，插入数据

安装完成后，在开始菜单找到PostgreSQL 9.4 (x86)\pgAdmin III,打开 pgAdmin III，点击下图节点，输入密码“pg”

连接后如图

点击

，在新打开的窗口输入下边语句，创建表，插入数据

CREATE TABLE users (

uid serial PRIMARY KEY ,

name varchar(40) NOT NULL CHECK (name <> ‘‘),

pwd varchar(40) NOT NULL CHECK (name <> ‘‘),

gender char(1),

email varchar(40),

birthday date

);

INSERT INTO users VALUES (1, ‘zxh‘, ‘zxhpwd‘, ‘M‘, [email protected], ‘1984-07-13‘);

INSERT INTO users VALUES (2, ‘zxh2‘, ‘zxh2pwd‘, ‘F‘, [email protected], ‘1984-07-13‘);

展开目录树， 选中表“users”，点“

”查看数据

4、下载驱动

在打开也找到

打开psqljdbc，--“download”--然后找到下面

5、java链接postgresql

//psqlJDBC

//Publisher :PostgreSQL Global Development Group

//驱动地址：http://jdbc.postgresql.org/download.html => http://jdbc.postgresql.org/download/postgresql-9.3-1102.jdbc41.jar

//本地下载：http://files.cnblogs.com/piaolingzxh/postgresql-9.3-1102.jdbc41.jar.zip

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.ResultSetMetaData;

import java.sql.Statement;

public class postgres_jdbc {

public static void main(String[] args) {

try {

Class.forName("org.postgresql.Driver").newInstance();

String url = "jdbc:postgresql://localhost:5432/postgres";

Connection con = DriverManager.getConnection(url, "postgres", "pg");

Statement st = con.createStatement();

String sql = " select * from users ";

ResultSet rs = st.executeQuery(sql);

ResultSetMetaData rsmd = rs.getMetaData();

int columnCount = rsmd.getColumnCount();

while (rs.next()) {

for (int i = 1; i <= columnCount; i++) {

System.out.print(rs.getString(i)+"\t");

}

System.out.println();

}

rs.close();

st.close();

con.close();

} catch (Exception ee) {

System.out.print(ee.getMessage());

}

}

}

6、scala连接数据库

//psqlJDBC

//Publisher : PostgreSQL Global Development Group

//驱动地址：http://jdbc.postgresql.org/download.html => http://jdbc.postgresql.org/download/postgresql-9.3-1102.jdbc41.jar

//本地下载：http://files.cnblogs.com/piaolingzxh/postgresql-9.3-1102.jdbc41.jar.zip

import java.sql.{ Connection, DriverManager, ResultSet };

object postgres_jdbc {

val conn_str = "jdbc:postgresql://localhost:5432/postgres"

classOf[org.postgresql.Driver]

def main(args: Array[String]) {

//classOf[org.postgresql.Driver]

val conn = DriverManager.getConnection(conn_str, "postgres", "pg")

try {

// Configure to be Read Only

val statement = conn.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY)

// Execute Query

val rs = statement.executeQuery("SELECT * FROM users")

var columnCount = rs.getMetaData().getColumnCount();

// Iterate Over ResultSet

while (rs.next) {

for (i

System.out.print(rs.getString(i) + "\t");

}

System.out.println();

}

} finally {

conn.close

}

}

}

7、PostgreSQL 8.1 中文文档

http://www.php100.com/manual/PostgreSQL8/

原文：http://www.cnblogs.com/piaolingzxh/p/4201216.html