hibernate和MySQL乱码问题的解决方案（hibernate）
1, mysql安装时设置字符集utf-8（包括数据库字符集，以及表的字符集）, jdbc驱动用最新的
2. hibernate配置文件（hibernate.cfg.xml）中,加上属性
<property name="connection.useUnicode">true</property>
<property name="connection.characterEncoding">UTF-8</property>

3. web.xml设置Filter
=================================================
<filter>
  <filter-name>
   Set Web Application Character Encoding
  </filter-name>
  <filter-class>com.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>

=============================================
SetEncodeFilter.java



1package com.util;
2
3import java.io.IOException;
4
5import javax.servlet.Filter;
6import javax.servlet.FilterChain;
7import javax.servlet.FilterConfig;
8import javax.servlet.ServletException;
9import javax.servlet.ServletRequest;
10import javax.servlet.ServletResponse;
11
12public class SetEncodeFilter implements Filter {
13    
14    protected FilterConfig filterConfig = null;
15
16    protected String defaultEncoding = null;
17
18    /** *//**//* (non-Javadoc)
19     * @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
20     */
21    public void init(FilterConfig arg0) throws ServletException {
22        // TODO Auto-generated method stub
23        this.filterConfig = arg0;
24        this.defaultEncoding = filterConfig.getInitParameter("defaultencoding");
25    }
26
27    /** *//**//* (non-Javadoc)
28     * @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain)
29     */
30    public void doFilter(
31        ServletRequest request,
32        ServletResponse response,
33        FilterChain chain)
34        throws IOException, ServletException {
35        // TODO Auto-generated method stub
36        request.setCharacterEncoding(selectEncoding(request));
37        chain.doFilter(request, response);
38    }
39
40
41    public void destroy() {
42        
43        this.defaultEncoding = null;
44        this.filterConfig = null;
45    }
46
47
48    protected String selectEncoding(ServletRequest request) {
49
50        return this.defaultEncoding;
51    }
52
53}
4.提交表单的jsp页面设置
<%@ page language="java"  contentType="text/html; charset=UTF-8"%>



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