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讲解jython访问MySQL数据库的具体步骤

筹备事情如下:

下载

http://jaist.dl.sourceforge.net/sourceforge/zxjdbc/zxJDBC-2.1.tar.gz

http://jaist.dl.sourceforge.net/sourceforge/jython/jython_installer-2.2.1.jar

http://mmmysql.sourceforge.net/dist/mm.mysql-2.0.4-bin.jar

安装(必要已经安装了jdk/jre?)

java -jar jython_installer-2.2.1.jar 安装到C:\jython2.2.1

将zxJDBC.jar解压缩到c:\tmp

将mm.mysql-2.0.4-bin.jar复制到c:\tmp

C:\jython2.2.1>set CLASSPATH=c:\tmp\mm.mysql-2.0.4-bin.jar;c:\tmp\zxJDBC.jar;%CLASSPATH%

启动mysql办事器

C:\mysql51>cd bin

C:\mysql51\bin>mysqld --console

并建立数据库

C:\mysql51\bin>mysql -u root

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 1

Server version: 5.1.14-beta-community MySQL Community Server (GPL)

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> show databases

-> ;

+--------------------+

| Database|

+--------------------+

| information_schema |

| mysql|

+--------------------+

2 rows in set (0.00 sec)

mysql> create database test;

Query OK, 1 row affected (0.01 sec)

mysql> use test

Database changed

mysql> create table a1(c1 varchar(30));

Query OK, 0 rows affected (0.02 sec)

mysql> insert into a1 values ('Hello World');

Query OK, 1 row affected (0.00 sec)

进入jython情况造访mysql

C:\jython2.2.1>jython

Jython 2.2.1 on java1.6.0

Type "copyright", "credits" or "license" for more information.

>>> from com.ziclix.python.sql import zxJDBC

>>> mysqlConn = zxJDBC.connect("jdbc:mysql://localhost/test",

... "root", "",

... "org.gjt.mm.mysql.Driver")

>>> cursor = mysqlConn.cursor()

>>> cursor.execute("SELECT * FROM a1");

>>> cursor.fetchone()

('Hello World',)

>>> cursor.fetchall()

[]

>>> cursor.description

[('c1', 12, 30, None, None, None, 1)]

>>>

必要用jython自己封装的dbexts库

着末编辑一个名为dbexts.ini的文件保存到c:\jython2.2.1\lib

[default]

name=mysqltest

[jdbc]

name=mysqltest

url=jdbc:mysql://localhost/test

user=root

pwd=

driver=org.gjt.mm.mysql.Driver

进入jython

>>> from dbexts import dbexts

>>> mysqlcon = dbexts("mysqltest", "c:\jython2.2.1\lib\dbexts.ini

>>> mysqlcon.table()

TABLE_CAT | TABLE_SCHEM | TABLE_NAME | TABLE_TYPE | REMARKS

-----------------------------------------------------------

| | a1 | TABLE |

1 row affected

>>> mysqlcon.table('a1')

TABLE_CAT | TABLE_SCHEM | TABLE_NAME | COLUMN_NAME | DATA_TYPE |

S | NUM_PREC_RADIX | NULLABLE | REMARKS | COLUMN_DEF | SQL_DATA_

SITION | IS_NULLABLE

----------------------------------------------------------------

----------------------------------------------------------------

--------------------

| | a1 | c1 | 12 |

| 10 | 1 | | | 0

| YES

1 row affected

>>> mysqlcon.isql("SELECT * FROM a1")

C1

-----------

Hello World

1 row affected

DML

>>> mysqlcon.isql("insert into a1 values('insert by dbexts')")

>>> mysqlcon.isql("SELECT * FROM a1")

C1

----------------

Hello World

insert by dbexts

2 rows affected

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