
MyJsp.jsp
<body>
<%
String user=request.getParameter("user");
out.print("user"+user);
String password=request.getParameter("password");
out.print("password"+password);
String [] interest=request.getParameterValues("interest");
%>
爱好:<%
for(String i: interest){
out.println(i);
}%>
</body>
SetCharFilter.java
package com.kgc.filter;
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 SetCharFilter implements Filter {
@Override
public void destroy() {
// TODO Auto-generated method stub
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
// TODO Auto-generated method stub
//执行的过滤功能
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
chain.doFilter(request, response);
}
@Override
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub
}
}
web.xml
<filter>
<filter-name>SetCharFilter</filter-name>
<filter-class>com.kgc.filter.SetCharFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>SetCharFilter</filter-name>
<!-- 过滤拦截url -->
<url-pattern>/*</url-pattern>
</filter-mapping>
DoMyJsp.jsp
<body>
<%
String user=request.getParameter("user");
out.print("user"+user);
String password=request.getParameter("password");
out.print("password"+password);
String [] interest=request.getParameterValues("interest");
%>
爱好:<%
for(String i: interest){
out.println(i);
}%>
</body>