适合情况 -> 从jsp传入到action时的乱码情况,这里以GBK为例
1.建立一个用于转换编码的filter
文件位置举例:src.util.SetCharacterEncodingFilter.java
package util;
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.UnavailableException;
/**
* Example filter that sets the character encoding to be used in parsing the
* incoming request
*/
public class SetCharacterEncodingFilter implements Filter {
/**
* Take this filter out of service.
*/
public void destroy() {
}
/**
* Select and set (if specified) the character encoding to be used to
* interpret request parameters for this request.
*/
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain)throws IOException, ServletException {
request.setCharacterEncoding("gbk");
// 传递控制到下一个过滤器
chain.doFilter(request, response);
}
public void init(FilterConfig filterConfig) throws ServletException {
}
}
2.修改web.xml,在struts的FilterDispatcher映射之前添加2个filter
org.springframework.web.context.ContextLoaderListener
Set Character Encoding
util.SetCharacterEncodingFilter
Set Character Encoding
/*
struts-cleanup
org.apache.struts2.dispatcher.ActionContextCleanUp
struts-cleanup
/*
struts2
org.apache.struts2.dispatcher.FilterDispatcher
struts2
/*
3.你的JSP头应该有
4.在struts.xml中修改默认的编码设定
...
...
...
基本上就这样可以解决大多传入的字符乱码问题
PS:如果是数据库提取字符乱码,比如mysql,确认你的数据库内字符是gbk,并且连接字符串指定了字符编码