①重新编码:String urlParam= request.getParameter("urlParam");
urlParam= new String(urlParam.getBytes("ISO-8859-1"), "UTF-8");
②tomcat中统一编码
tomcat 的server.xml中在相对应的端口中加下面两句
useBodyEncodingForURI="true"
URIEncoding="UTF-8"
③在web.xml文件中配一个过滤器:(没有试验成功)
第一步:<filter>
<filter-name>filter</filter-name>
<filter-class>com.social.filter.CodeFilter</filter-class> 设置过滤器的类名(filter包下的CoderFilter类)
</filter>
<filter-mapping>
<filter-name>filter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
第二步:编写com.social.filter.CodeFilter类:
import javax.servlet.Filter;
public class CodeFilter implements Filter {
public void destroy() {
// TODO Auto-generated method stub
}
public void doFilter(ServletRequest arg0, ServletResponse arg1,
FilterChain arg2) throws IOException, ServletException {
// TODO Auto-generated method stub
//把ServletRequest强制转化为HttpServletRequest
HttpServletRequest request=(HttpServletRequest)arg0;
HttpServletResponse response=(HttpServletResponse)arg1;
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
arg2.doFilter(request, response);
}
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub
}
}
④设置request的编码格式
request.setCharacterEncoding("utf-8");
String ss=request.getParameter("ss");
⑤声明一个方法来处理乱码问题
具体实现过程与操作步骤如下。
创建页面declaration.jsp,在该页面中主要是声明一个方法,完成乱码的处理。
<%@ page language="java" contentType="text/html; charset=GB2312"%>
<%!String tran(String str) { String res=null; byte temp[]; try { temp=str.getBytes("Gb2312"); res=new String(temp); } catch(java.io.UnsupportedEncodingException e) { System.out.println(e.toString()); }
return res;
} %>
<%! int count =10; %>
<% String source="你好!中国"; for(int i=0;i<count;i++) out.println(tran(source)); %>
在以上代码中,在声明的tran()方法中,使用字符串的getBytes()方法将字符集重新编码成GB2312。然后使用for循环,将“你好!中国”显示出来。