hibernate 的中文乱码解决办法
我用 hibernate Synchronizer 时，在读出和写入数据的时候出现乱码。
解决办法有两种：
第一种办法：分两步：
1、解决保存到数据库时出现的乱码问题。在 hibernate.cfg.xml 中添加两行：
<property name="connection.useUnicode">true</property>
<property name="connection.characterEncoding">gbk</property>
这样，当数据保存时就不会出现乱码。
2、解决从数据库读出数据时的乱码问题。在读出数据后把数据转换为 gbk 编码。
如： new String(getName().getBytes("ISO8859_1"),"gbk")，这时生成的 String 就是可以正常显示的中文了。
第二种办法：（来自：http://www.cnblogs.com/josson/archive/2005/03/16/119619.html）
<filter>?
??<filter-name>????Set?Web?Application?Character?Encoding???</filter-name>???<filter-class>cn.com.commnet.util.SetEncodeFilter</filter-class>???<init-param>????<param-name>defaultencoding</param-name>????<param-value>UTF-8</param-value>???</init-param>??</filter>??<filter-mapping>???<filter-name>????Set?Web?Application?Character?Encoding???</filter-name>???<url-pattern>/*</url-pattern>??</filter-mapping>
public?class?SetEncodeFilter?implements?Filter?{?
?????protected?FilterConfig?filterConfig?=?null;??????protected?String?defaultEncoding?=?null;??
????/*?(non-Javadoc)??????*?@see?javax.servlet.Filter#init(javax.servlet.FilterConfig)?
?????*/?????public?void?init(FilterConfig?arg0)?throws?ServletException?{?????????//?TODO?Auto-generated?method?stub?????????this.filterConfig?=?arg0;?????????this.defaultEncoding?=?filterConfig.getInitParameter("defaultencoding");?????}??????/*?(non-Javadoc)??????*?@see?javax.servlet.Filter#doFilter(javax.servlet.ServletRequest,?javax.servlet.ServletResponse,?javax.servlet.FilterChain)??????*/?????public?void?doFilter(?????????ServletRequest?request,?????????ServletResponse?response,?????????FilterChain?chain)?????????throws?IOException,?ServletException?{?????????//?TODO?Auto-generated?method?stub?????????request.setCharacterEncoding(selectEncoding(request));?????????chain.doFilter(request,?response);?????}???????public?void?destroy()?{??????????????????this.defaultEncoding?=?null;?????????this.filterConfig?=?null;?????}???????protected?String?selectEncoding(ServletRequest?request)?{??????????return?this.defaultEncoding;?????}??
}
