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【Java】字符编码过滤器

作者:冰雨凌風 / 发布于2012/10/8/ 690

<div>package com.cqcet.filter;</div>
import java.io.IOException;</div>
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
//实现字符编码过滤
public class EncodeFilter implements Filter {
protected String encoding = null;
protected FilterConfig filterConfig = null;</div>
<div>public void destroy() {
System.out.println("过滤器销毁!");
this.encoding = null;
this.filterConfig = null;</div>
<div>}
<div>public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
String encoding = this.encoding;
if (encoding != null) {
request.setCharacterEncoding(encoding);
} else {
request.setCharacterEncoding("UTF-8");
}
chain.doFilter(request, response);// 传递过滤链</div>
<div>}
<div>public void init(FilterConfig config) throws ServletException {
System.out.println("过滤器初始化!");
this.filterConfig = config;
this.encoding = filterConfig.getInitParameter("encoding");// 获取传递过来的初使化编码</div>
<div>}
<div>}
</div>

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　字符编码过滤器　

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