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一个简单的JAVA字符集过滤器实现
来源: 互联网 发布时间:2014-10-16
本文导语: 代码如下:package dw05prj.util.filter; import javax.servlet.Filter; import javax.servlet.FilterConfig; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.servlet.FilterChain; import java.io.IOException; /*页面字符...
代码如下:
package dw05prj.util.filter;
import javax.servlet.Filter;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.FilterChain;
import java.io.IOException;
/*页面字符集过滤流*/
/*
在web.xml中配制的例子
CharEncodingFilter
dw05prj.util.filter.CharEncodingFilter
charset
GBK
CharEncodingFilter
/*
*/
public class CharEncodingFilter implements Filter {
private String charSet ;
public void init(FilterConfig parm1) throws ServletException {
charSet = parm1.getInitParameter("charset") ;
if (charSet == null && charSet.length() < 1)
{
charSet = "UTF-8" ;
}
System.out.println ("CharEncodingFilter--字符集: " + this.getCharSet()) ;
}
public void doFilter(ServletRequest parm1, ServletResponse parm2,
FilterChain parm3) throws IOException, ServletException {
// 设定字符集
parm1.setCharacterEncoding(this.getCharSet());
parm3.doFilter(parm1, parm2);
//页面中每个向服务器的请求都被过滤 -- 如 图片,js,HTML/JSP等等
//System.out.println ("---CharEncodingFilter: " + this.getCharSet()) ;
}
public void destroy() {
// TODO: Add your code here
this.setCharSet(null) ;
}
public void setCharSet(String charSet) {
this.charSet = charSet;
}
public String getCharSet() {
return (this.charSet);
}
}