我們需要通過過濾器進行攔截,將request中的getparameter()方法進行覆蓋把包含敏感詞的池中的敏感詞進行遍歷然後一次屏蔽
package cn.hncu.filter;
import java.io.IOException;
import java.util.List;
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;
import javax.servlet.http.HttpServletRequestWrapper;
import cn.hncu.pub.wordUtils;
public class wordFilter implements Filter {
@Override
public void destroy() {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
myrequest request2 = new myrequest((HttpServletRequest) request);
chain.doFilter(request2, response);
}
@Override
public void init(FilterConfig arg0) throws ServletException {
}
class myrequest extends HttpServletRequestWrapper {
public myrequest(HttpServletRequest request) {
super(request);
}
@Override
public String getParameter(String name) {
String val = super.getParameter(name);
System.out.println(val);
List<String> list = wordUtils.getwords();
for (String s : list) {
val = val.replaceAll(s, "***");
System.out.println("屏蔽敏感詞" + s);
}
return val;
}
}
}