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在Web.xml中定义自己的过滤器

2015-04-25 13:38 162 查看

1.过滤器代码

package com.zkj.filter;

import java.io.IOException;
import java.io.PrintWriter;

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.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class MyFilter extends HttpServlet implements Filter {

public void doFilter(ServletRequest arg0, ServletResponse arg1,
FilterChain arg2) throws IOException, ServletException {
// TODO Auto-generated method stub
arg0.setCharacterEncoding("utf-8");
arg2.doFilter(arg0, arg1);
}

public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub

}

}

中文处理
2.web.xml配置

<!--配置自己的过滤器-->
<filter>
<filter-name>MyFilter</filter-name>
<filter-class>com.zkj.filter.MyFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>MyFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

3.jsp文件放入WEB-INF目录巧处理之index.jsp代码

<body>
<jsp:forward page="WEB-INF/register.jsp"></jsp:forward>
</body>

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