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发表于 2020-3-8 11:00:02
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1.编码问题:
(1)首先确定JSP页面头部是否有:<%@ page contentType="text/html; charset=GBK" %>
(2)类似这样的转码:
String param= new String(request.getParameter("param").getBytes("ISO-8859-1"), "GBK");
(3)添加filter字符过滤器,具体做法:
先添加类:
import javax.servlet.Filter;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.FilterChain;
import java.io.IOException;
import org.apache.log4j.Logger;
import java.net.URLEncoder;
/** *//**
* 请求中中文字符串过滤类
*/
public class SetEncodingFilter
implements Filter ...{
private Logger logger=Logger.getLogger(this.getClass());
public void init(FilterConfig filterConfig) throws ServletException ...{
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException ...{
logger.info("请求转码过滤器===================");
request.setCharacterEncoding("gb2312");
chain.doFilter(request,response);
}
public void destroy() ...{
}
}
再注册类到XML里：
<filter>
<filter-name>Set Encoding</filter-name>
<filter-class>SetEncodingFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>Set Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
(4)如果是通过"a.jsp?param=中文"传递参数,则需要:
a.在传参数之前先把参数进行转码:java.net.URLEncoder.encode(param);
取值用java.net.URLDncoder.dncode(param);再转回中文
b.在你的Tomcat目录-->conf目录-->server.xml里找出这段:
<Connector
port="8080" maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
debug="0" connectionTimeout="20000"
disableUploadTimeout="true" <!--在里边加上这个参数-->URIEncoding="gb2312"
/>
(5)数据库乱码,首先确定你在插入数据库之前是中文,解决办法:
在数据库的数据库连接URL中加上useUnicode=true&characterEncoding=GBK就OK了。
如果在读取的时候出现乱码用第二种方法解决.
http://blog.csdn.net/lip009/archive/2006/09/07/1192022.aspx#521755
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