修改tomcat的conf/server.xml解决网页乱码

——后台
转码
str= new String(str.getBytes("iso8859-1"),"gb2312");

str= new String(str.getBytes("iso8859-1"),"GBK");
 
servlet中

response.setContentType("text/html; charset=GBK");

——前台

JSP中乱码

<%@ page language="java" contentType="text/html;charset=GBK" pageEncoding="GBK" %> 

——服务器 tomcat中
  更改 Tomcat\conf\server.xml，指定浏览器的编码格式为“简体中文”：

把

<Connector port="8080" protocol="HTTP/1.1"

               connectionTimeout="20000"

               redirectPort="8443" />

改成

<Connector port="8080" protocol="HTTP/1.1"

               connectionTimeout="20000"

               redirectPort="8443" URIEncoding="GBK"/>

 

——web.xml中添加一个过滤器

<filter> 

    <filter-name>CharacterEncodingFilter</filter-name> 

    <filter-class>com.worthtech.app.filter.CharacterEncodingFilter</filter-class> 

    <init-param> 

      <param-name>encoding</param-name> 

      <param-value>UTF-8</param-value> 

    </init-param> 

    <init-param> 

      <param-name>ignore</param-name> 

      <param-value>true</param-value> 

    </init-param> 

  </filter> 

  <filter-mapping> 

    <filter-name>CharacterEncodingFilter</filter-name> 

    <url-pattern>/*</url-pattern> 

  </filter-mapping>

 

 

java 代码

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;  

 

public class CharacterEncodingFilter implements Filter {  

 

    private String encoding=null;  

    private boolean ignore=true;  

      

    public void destroy() {  

        // TODO Auto-generated method stub  

        encoding=null;  

    }  

 

    /**  

       * 过滤请求，用户提交请求时起作用  

       */    

    public void doFilter(ServletRequest request, ServletResponse response,  

            FilterChain chain) throws IOException, ServletException {  

        // TODO Auto-generated method stub  

        if(ignore||request.getCharacterEncoding()==null){  

            String encoding=getEncoding();  

            if(encoding!=null){  

                request.setCharacterEncoding(encoding);  

            }  

        }  

//      System.out.println("encoding===="+encoding);  

        response.setContentType("text/html;charset="+encoding);  

//      do something here  

        //当前工作全部完成后，将请求放开给过滤器链的下一filter   

        chain.doFilter(request, response);  

    }  

 

    public void init(FilterConfig filterConfig) throws ServletException {  

        // TODO Auto-generated method stub  

        this.encoding=filterConfig.getInitParameter("encoding");  

        String value=filterConfig.getInitParameter("ignore");  

        if(value==null){  

            this.ignore=true;  

        }else if(value.equalsIgnoreCase("true")){  

            this.ignore=true;  

        }else if(value.equalsIgnoreCase("yes")){  

            this.ignore=true;  

        }else{  

            this.ignore=false;  

        }  

    }  

 

    protected String getEncoding(){  

        return this.encoding;  

    }  

}