Hibernate與Mysql數據庫結合亂碼問題解決

　　Hibernate+MySQL5.0結合的默認配置，那麼向數據庫寫入中文數據的時候會是亂碼，且jsp頁面顯示中文的時候也有有亂碼問題，非常煩人。

　　通過查詢及整理，處理方法以下：

　　一、修改hibernate的配置文件，在url處添加綠色的一段：　　

< hibernate-configuration >
< session-factory name ="myjava" >
   < property name ="hibernate.connection.driver_class" >org.gjt.mm.mysql.Driver </ property >
   < property name ="hibernate.connection.url" >jdbc:mysql://localhost:3306/myjava ?useUnicode=true&amp;characterEncoding=UTF-8 </ property >
   < property name ="hibernate.connection.username" >root </ property >
   < property name ="hibernate.connection.password" >test </ property >
   < property name ="connection.pool_size" >10 </ property >
   < property name ="hibernate.dialect" >org.hibernate.dialect.MySQL5Dialect </ property >
   < property name ="current_session_context_class" >thread </ property >
   < property name ="cache.provider_class" >org.hibernate.cache.NoCacheProvider </ property >
   < property name ="show_sql" >true </ property >
   < property name ="hbm2ddl.auto" >create </ property >
</ session-factory >
</ hibernate-configuration >

 

二、jsp頁面設置語言,同時form表單使用post方式提交

< html >
< head >
< meta http-equiv ="Content-Type" content ="text/html;charset=UTF-8" >
< title >Event Manager </title>
</head>
< body >
< form method ="post" >
...
</form>
</body>
</html>

 

三、建立一個語言過濾servlet,用來處理請求和發送的字符編碼

(1)CharacterEncodingFilter.java文件的源碼以下:

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServlet;

@SuppressWarnings( "serial")
public class CharacterEncodingFilter extends HttpServlet implements Filter {

     public CharacterEncodingFilter() {
   // TODO Auto-generated constructor stub
    }

     public void doFilter(ServletRequest arg0, ServletResponse arg1,
      FilterChain arg2) throws IOException, ServletException {
   //下面的兩個編碼根據你的項目所使用的中文字符集肯定
  arg0.setCharacterEncoding( "UTF-8");
  arg1.setCharacterEncoding( "UTF-8");
  arg2.doFilter(arg0, arg1);
    }
}

 

(2)WEB-INF/web.xml文件修改以下:

<? xml version ="1.0" encoding ="UTF-8" ?>
< web-app xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"
     xmlns ="http://java.sun.com/xml/ns/javaee"
     xmlns:web ="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
     xsi:schemaLocation ="http://java.sun.com/xml/ns/javaee [url]http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd[/url]"
     id ="WebApp_ID" version ="2.5" >
  
     < filter >
   < filter-name >CharacterEncodingFilter </ filter-name >
   < filter-class >events.CharacterEncodingFilter </ filter-class >
     </ filter >
     < filter-mapping >
   < filter-name >CharacterEncodingFilter </ filter-name >
   < url-pattern >/* </ url-pattern >
     </ filter-mapping >

     < welcome-file-list >
   < welcome-file >index.html </ welcome-file >
   < welcome-file >index.htm </ welcome-file >
   < welcome-file >index.jsp </ welcome-file > 
     </ welcome-file-list >
</ web-app >

 

　　到此，hibernate和mysql結合的中文存儲亂碼問題，jsp頁面顯示中文問題就解決了。若是你的應用仍是有亂碼問題，那就要詳細對應問題狀況，而後再處理問題了。