MyException - 我的异常网
当前位置:我的异常网» Java Web开发 » 中文乱码处置办法(新手来)

中文乱码处置办法(新手来)

www.MyException.Cn  网友分享于:2013-12-26  浏览:14次
中文乱码处理办法(新手来)
-------------------JAVA代码------------------

Java code

package tools;

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

public class EncodingFilter extends HttpServlet implements Filter
{
    private FilterConfig config = null;
    private String targetEncoding = "GBK";

    public void init(FilterConfig filterConfig)
    {
        this.config = filterConfig;
        this.targetEncoding = config.getInitParameter("encoding");
    }

    public void destroy()
    {
        config = null;
        targetEncoding = null;
    }

    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
                         FilterChain filterChain)
    {
        ServletRequest request = (ServletRequest) servletRequest;
        try
        {
            request.setCharacterEncoding(targetEncoding);
            filterChain.doFilter(servletRequest, servletResponse);
        }
        catch (Exception ex)
        {
            ex.printStackTrace();
        }
    }

}






------------web.xml------------
Java code


 <filter>
    <filter-name>EncodingFilter</filter-name>
    <filter-class>[color=#FF0000]db.EncodingFilter[/color]</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>[color=#0000FF]GBK[/color]</param-value>
    </init-param>
  </filter>
   <filter-mapping>
    <filter-name>EncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>






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

红色是类的路径,蓝色是编码,注意和jsp页面上的要一致

添加、查询数据都没问题,有没有有效请用过再说,希望能帮新学的XDJM们不再受到乱码问题的困扰,有什么不足也请老大们指出

附:只在sqlserver2000和mysql中试验过

------解决方案--------------------
写在xml文件里面,跟servlet配置一样,没有自动生成,要自己添加。比如:
XML code
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
    version="2.4">
    
    <filter>
        <filter-name>HelloFilter</filter-name>
        <filter-class>com.tarena.filter.HelloFilter</filter-class>
    </filter> 
    <filter-mapping>
        <filter-name>HelloFilter</filter-name>
        <url-pattern>/hello</url-pattern>
    </filter-mapping> 
    
    <filter>
        <filter-name>AppendFilter</filter-name>
        <filter-class>com.tarena.filter.AppendFilter</filter-class>
    </filter> 
    <filter-mapping>
        <filter-name>AppendFilter</filter-name>
        <url-pattern>/hello</url-pattern>
    </filter-mapping> 
    
    <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>com.tarena.filter.CharacterEncodingFilter</filter-class>
        <init-param> 
            <param-name>charset</param-name>
            <param-value>gbk</param-value>
        </init-param> 
    </filter> 
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping> 
    
    <filter>
        <filter-name>AuthenticationFilter</filter-name>
        <filter-class>com.tarena.filter.AuthenticationFilter</filter-class>
    </filter> 
    <filter-mapping>
        <filter-name>AuthenticationFilter</filter-name>
        <url-pattern>/a</url-pattern>
    </filter-mapping> 
    
    <listener

文章评论

软件开发程序错误异常ExceptionCopyright © 2009-2015 MyException 版权所有