解决jsp页面数据传递乱码问题-优快云博客

本文详细介绍了一个用于设置请求字符编码为GBK的过滤器的实现过程。通过创建一个实现了Filter接口的SetCharacterEncodingFilter类，并在类中设置了默认编码为GBK，确保了所有请求在处理前都被正确编码。

1，新建一个servlet类，直接上代码，

1 package com.aptech.jb.filter;
2
3 import javax.servlet.Filter;
4 import javax.servlet.FilterConfig;
5 import javax.servlet.ServletException;
6 import javax.servlet.ServletRequest;
7
8 import javax.servlet.ServletResponse;
9 import javax.servlet.FilterChain;
10 import java.io.IOException;
11
12 public class SetCharacterEncodingFilter implements Filter {
13
14 protected FilterConfig filterConfig;
15 protected String encodingName;
16 protected boolean enable;
17
18 public SetCharacterEncodingFilter() {
19 this .encodingName = " GBK " ;
20 this .enable = false ;
21 }
22
23 public void init(FilterConfig filterConfig) throws ServletException {
24 this .filterConfig = filterConfig;
25 }
26
27 public void doFilter(ServletRequest request,
28 ServletResponse response,
29 FilterChain chain)
30 throws IOException, ServletException {
31 request.setCharacterEncoding( " GBK " );
32 chain.doFilter(request, response);
33 }
34
35 public void destroy() {
36 }
37 }

2，在web.xml文件中配置，直接添加如下代码