web.xml配置 struts 提交表单乱码问题解决

最新推荐文章于 2025-02-21 16:40:04 发布

wonderful_ha

最新推荐文章于 2025-02-21 16:40:04 发布

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本文介绍了如何在Struts框架中处理中文乱码问题，包括在web.xml中设置字符集过滤器及编写相关过滤类，确保页面提交请求时正确解析中文字符。

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struts中经常遇到提交中文乱码问题，既是头疼，所以写了一个过滤器，用来处理乱码问题。

web.xml设置对页面提交请求字符集进行设置：
1，首先在web.xml中设置对字符集过滤器
2，编写相关过滤器类

1，首先在web.xml中设置对字符集过滤器
这里设置字符集为：GBK
过滤类为： SetCharacterEncodingFilter <context-param>

    <param-name>weblogic.httpd.inputCharset./*</param-name>
    <param-value>GBK</param-value>
  </context-param>
  <filter>
    <filter-name>SetCharacterEncoding</filter-name>
    <filter-class>com.bjzfy.zfzj.gg.util.SetCharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>GBK</param-value>
    </init-param>
  </filter>

2,编写过滤类

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.UnavailableException;


public class SetCharacterEncodingFilter implements Filter {

protected String encoding = null;

protected FilterConfig filterConfig = null;

protected boolean ignore = true;


public void destroy() {

    this.encoding = null;

    this.filterConfig = null;

  }


  public void doFilter(ServletRequest request, ServletResponse response,

                       FilterChain chain) throws IOException, ServletException {


// Conditionally select and set the character encoding to be used

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

      String encoding = selectEncoding(request);

      if (encoding != null)

        try{

          request.setCharacterEncoding(encoding);

        }catch(Exception e){

          e.printStackTrace();

        }

    }


// Pass control on to the next filter

    try{

      chain.doFilter(request, response);

    }

    catch(IOException e){

      e.printStackTrace();

    }

    catch(ServletException se){

      se.printStackTrace();

    }


  }


  public void init(FilterConfig filterConfig) throws ServletException {


    this.filterConfig = filterConfig;

    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 selectEncoding(ServletRequest request) {

return (this.encoding);

}


}

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