在JSP中,我要把界面填写的数据保存到数据库中,然后从数据库读取出,展示在界面。在学校我必须把数据类型string转换成“ISO-8859-1”格式,否则界面显示的是???,可一到了家里我的电脑上,就不用转换,如果转换的话,界面显示???乱码,很是郁闷,那位高手帮忙解决一下。具体代码如下: String name=request.getParameter(文本框name);
name=new String(name.getBytes("ISO-8859-1"),"UTF-8");
到底怎样才不乱码吖?
name=new String(name.getBytes("ISO-8859-1"),"UTF-8");
到底怎样才不乱码吖?
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;public class Encoding implements Filter { private String encoding;
public void destroy() {
// TODO 自动生成方法存根 } public void doFilter(ServletRequest request, ServletResponse arg1,
FilterChain fc) throws IOException, ServletException {
// TODO 自动生成方法存根
request.setCharacterEncoding("GBK");
fc.doFilter(request, arg1);
} public void init(FilterConfig fc) throws ServletException {
// TODO 自动生成方法存根
this.encoding=fc.getInitParameter("encoding");
}}
然后在web.xml文件里配置下<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>3</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>3</param-value>
</init-param>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<!-- 添加过滤器开始 -->
<filter>
<filter-name>guolvqi</filter-name>
<filter-class>org.utils.Encoding</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>GBK</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>guolvqi</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 结束 -->
</web-app>
添加request.setCharacterEncoding="gb2312"试试。
二楼的方法好,如果你用spring的话,里面有CharactorEncoding过滤器,配置一下就行。
最好写好你是用什么方法(get,post),因为这两种方法处理编码的方式不一样!