页面都用UTF-8了，而且数据库链接池也做了编码控制，还是出现了乱码。不过刚开始用那个数据库，还没有用FILTER都没有乱码。于是我想到是否用个FILTER试试。
然后将过滤器添加到web.xml
过程：
1
package org.cotel.Evote.Util;
2
3import java.io.IOException;
4import javax.servlet.*;
5
6public class EncodingFilter implements Filter{
7 private String encoding;
8 public EncodingFilter(){
9 }
10 public void init(FilterConfig filterconfig)
11 throws ServletException{
12 encoding = filterconfig.getInitParameter("encoding");
13 }
14
15 public void doFilter(ServletRequest servletrequest, ServletResponse servletresponse, FilterChain filterchain)
16 throws IOException, ServletException{
17 if(encoding != null && servletrequest.getCharacterEncoding() == null)
18 servletrequest.setCharacterEncoding(encoding);
19 filterchain.doFilter(servletrequest, servletresponse);
20 }
21 public void destroy(){
22 }
23}
24
25
package org.cotel.Evote.Util;2
3
import java.io.IOException;4
import javax.servlet.*;5
6
public class EncodingFilter implements Filter{7
private String encoding;8
public EncodingFilter(){9
}10
public void init(FilterConfig filterconfig)11
throws ServletException{12
encoding = filterconfig.getInitParameter("encoding");13
}14
15
public void doFilter(ServletRequest servletrequest, ServletResponse servletresponse, FilterChain filterchain)16
throws IOException, ServletException{17
if(encoding != null && servletrequest.getCharacterEncoding() == null)18
servletrequest.setCharacterEncoding(encoding); 19
filterchain.doFilter(servletrequest, servletresponse);20
}21
public void destroy(){22
}23
}24
25
然后将过滤器添加到web.xml
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