BlogJava--随笔分类-java

开源Java加密工具Jasypt

forker — Wed, 28 Nov 2007 14:47:00 GMT

Jasypt 是一个 Java 库，可以使开发者不需太多操作来给 Java 项目添加基本加密功能，而且不需要知道加密原理。
可与 Spring Framework 、 Hibernate 和 Acegi Security 集成。符合 RSA 标准的基于密码的加密，并提供了无配
置加密工具以及新的、高可配置标准的加密工具。
希望在项目上加上Jasypt.

forker 2007-11-28 22:47 发表评论

userCache共享缓存中

forker — Fri, 21 Sep 2007 02:35:00 GMT

ERROR - DisposableBeanAdapter.destroy( 149 ) | Couldn't invoke destroy method of bean with name 'org.springframework.cache.ehcache.EhCacheManagerFactoryBean#12c7568'
java.lang.IllegalStateException: The userCache Cache is not alive.
    at net.sf.ehcache.Cache.checkStatus(Cache.java: 1201 )
    at net.sf.ehcache.Cache.dispose(Cache.java: 1081 )
    at net.sf.ehcache.CacheManager.shutdown(CacheManager.java: 702 )
    at org.springframework.cache.ehcache.EhCacheManagerFactoryBean.destroy(EhCacheManagerFactoryBean.java: 127 )
    at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java: 146 )
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java: 379 )
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java: 352 )
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java: 325 )
    at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java: 799 )
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java: 777 )
    at org.springframework.context.support.AbstractApplicationContext$ 1 .run(AbstractApplicationContext.java: 714 )

添加shared

<bean id="userCache" class="org.acegisecurity.providers.dao.cache.EhCacheBasedUserCache">
        <property name="cache">
            <bean class="org.springframework.cache.ehcache.EhCacheFactoryBean">
                <property name="cacheManager">
                    <bean class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">

                        <property name="shared" value="true"/>
                    bean>
                property>
                <property name="cacheName" value="userCache">property>
            bean>
        property>
    bean>

forker 2007-09-21 10:35 发表评论

hibernate映射oracle自动增长ID

forker — Tue, 28 Aug 2007 07:12:00 GMT

安装有oracle数据库，创建数据库，总是要创建一个主键ID，唯一标示各条记录，但oracle不支持自动编号，所以还得创建一个SEQUENCE(序列)语句如

create sequence bign nocycle maxvalue 9999999999 start with 1;//增加数据

insert into table (ID,..) values(bign.nextval,..)

在hibernate中的映射文件可这么写

   <id name="id" type="java.lang.Long" column="ID">
            <generator class="sequence" >
                 <param name="sequence">bignparam>
            generator>
   id>

或

(increment 用与为long，short或者int类型生成唯一标示。只有在没有其他进程忘同一张表中插入数据时才能使用。在集群下不要使用)

forker 2007-08-28 15:12 发表评论

Hibernate加载其数据库配置

forker — Tue, 21 Aug 2007 02:01:00 GMT

Hibernate加载其配置文件hibernate.properties和hibernate.cfg.xml,常用xml文件比较直观，方便管理， Hibernate 是一个流行的开源对象关系映射工具，方便连接不同数据库，更换数据库，只要修改Hibernate配置文件，大度减少项目的维护。
完整的配置如下:

xml version='1.0' encoding='utf-8'?>
DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <session-factory>


        <property name="connection.driver_class">org.hsqldb.jdbcDriverproperty>
        <property name="connection.url">jdbc:hsqldb:hsql://localhost/testproperty>
        <property name="connection.username">saproperty>
        <property name="connection.password">property>


        <property name="connection.pool_size">1property>


        <property name="dialect">org.hibernate.dialect.HSQLDialectproperty>


        <property name="current_session_context_class">threadproperty>


        <property name="cache.provider_class">org.hibernate.cache.NoCacheProviderproperty>


        <property name="show_sql">trueproperty>


        <property name="hbm2ddl.auto">createproperty>

        <mapping resource="../*.hbm.xml"/>

    session-factory>

hibernate-configuration>

常用数据库连接
MySql 3/4/5:

   <property name="dialect">org.hibernate.dialect.MySQLDialectproperty>

   <property name="connection.driver_class">com.mysql.jdbc.Driverproperty>
   <property name="connection.url">jdbc:mysql://localhost:3306/testproperty>
   <property name="connection.username">rootproperty>
   <property name="connection.password">property>

Microsoft SQLServer (via jTDS):

   <property name="dialect">org.hibernate.dialect.SQLServerDialectproperty>

   <property name="connection.driver_class">net.sourceforge.jtds.jdbc.Driverproperty>
   <property name="connection.url">jdbc:jtds:sqlserver://localhost:1433/test;useCursors=trueproperty>
   <property name="connection.username">saproperty>
   <property name="connection.password">property>

IBM DB2:

   <property name="dialect">org.hibernate.dialect.DB2Dialectproperty>

   <property name="connection.driver_class">com.ibm.db2.jcc.DB2Driverproperty>
   <property name="connection.url">jdbc:db2://localhost:50000/testproperty>
   <property name="connection.username">db2inst1property>
   <property name="connection.password">property>

Oracle:

   <property name="dialect">org.hibernate.dialect.OracleDialectproperty>

   <property name="connection.driver_class">oracle.jdbc.driver.OracleDriverproperty>
   <property name="connection.url">jdbc:oracle:thin:@localhost:1521:testproperty>
   <property name="connection.username">oraproperty>
   <property name="connection.password">property>

Informix:

   <property name="dialect">org.hibernate.dialect.InformixDialectproperty>

   <property name="connection.driver_class">com.informix.jdbc.IfxDriverproperty>
   <property name="connection.url">jdbc:informix-sqli://localhost:1526/test:informixserver=server1property>
   <property name="connection.username">rootproperty>
   <property name="connection.password">property>
   <property name="connection.encoding">trueproperty>

Sybase (via jTDS):

   <property name="dialect">org.hibernate.dialect.SybaseDialectproperty>

   <property name="connection.driver_class">net.sourceforge.jtds.jdbc.Driverproperty>
   <property name="connection.url">jdbc:jtds:sybase://localhost:7100/test;useCursors=trueproperty>
   <property name="connection.username">rootproperty>
   <property name="connection.password">property>

PostgreSQL:

   <property name="dialect">org.hibernate.dialect.PostgreSQLDialectproperty>

   <property name="connection.driver_class">org.postgresql.Driverproperty>
   <property name="connection.url">jdbc:postgresql://localhost:5432/testproperty>
   <property name="connection.username">rootproperty>
   <property name="connection.password">property>

MaxDB(SAPDB):

   <property name="dialect">org.hibernate.dialect.SAPDBDialectproperty>

   <property name="connection.driver_class">com.sap.dbtech.jdbc.DriverSapDBproperty>
   <property name="connection.url">jdbc:sapdb://localhost/testproperty>
   <property name="connection.username">rootproperty>
   <property name="connection.password">property>

forker 2007-08-21 10:01 发表评论