📄 characterencodingfilter.java
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package webbook.chapter15;
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 FilterConfig config;
private String encoding = "ISO8859_1";
public void destroy() {
config = null;
}
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
request.setCharacterEncoding(encoding);
chain.doFilter(request, response);
}
public void init(FilterConfig config) throws ServletException {
this.config = config;
encoding = config.getInitParameter("encoding");
}
}
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