java中文乱码字符集解决大全

http://blog.csdn.net/wo6925371/article/details/5996079

http://blog.csdn.net/oakscut/article/details/3080803


1.自定义处理字符集类，实现Filter接口：CharFilter.java
package com.util; 

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.HttpServletRequest; 

public class CharFilter implements Filter 
{ 
    private String targetEncoding; 
    /** 
     *  
     * {还原到原始编码格式} 
     *  
     * @author:LJ 
     */
    public void destroy() 
    { 
        targetEncoding = null; 
    } 
    /** 
     *  
     * {对请求和响应字符集过滤} 
     *  
     * @param srequest 
     * @param sresponse 
     * @param chain 
     * @throws IOException 
     * @throws ServletException 
     * @author:LJ 
     */
    public void doFilter(ServletRequest srequest, ServletResponse sresponse, FilterChain chain) throws IOException, 
            ServletException 
    { 
        HttpServletRequest request = (HttpServletRequest) srequest; 
        request.setCharacterEncoding(targetEncoding); 
        sresponse.setContentType("text/html;charset=GBK"); 
        chain.doFilter(srequest, sresponse); ///派发请求 
    } 
    /** 
     *  
     * {初始化字符集编码格式} 
     *  
     * @param config 
     * @throws ServletException 
     * @author:LJ 
     */
    public void init(FilterConfig config) throws ServletException 
    { 
        targetEncoding = config.getInitParameter("encoding"); 
    } 
}
2.web.xml配置：
<filter>
     <filter-name>filter</filter-name>  
     <filter-class>com.util.CharFilter</filter-class>   
     <init-param>
            <param-name>encoding</param-name>
            <param-value>GBK</param-value>
     </init-param>        
</filter>    
<filter-mapping>  
       <filter-name>filter</filter-name>  
       <url-pattern>/*</url-pattern>   
</filter-mapping>