1.新建一个Dynamic Web Project项目，里面新建1个filter文件和1个jsp文件，整体的框架如图所示： 2.SetCharacterEncodingFilter.java里面的代码如下所示： package filter;import java.io.IOException;import javax.s
1.新建一个Dynamic Web Project项目，里面新建1个filter文件和1个jsp文件，整体的框架如图所示：
2.SetCharacterEncodingFilter.java里面的代码如下所示：
package 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;
import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;
@WebFilter(filterName = "setCharacterEncodingFilter", urlPatterns = { "/*" }, initParams = { @WebInitParam(name = "encoding", value = "utf-8") })
public class SetCharacterEncodingFilter implements Filter {
public static String encoding;
public void destroy() {
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
request.setCharacterEncoding(encoding);
chain.doFilter(request, response);
}
@Override
public void init(FilterConfig fConfig) throws ServletException {
encoding = fConfig.getInitParameter("encoding");
}
}
3. one.jsp里面的代码如下所示：
<%@page import="java.util.Date"%> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>example</title> </head> <body> <h2>Test</h2> </body> </html>
4 .在浏览器里面输入http://localhost:8080/Servlet/one.jsp运行之后得到的结果如下所示：