NO.31 Html,Jsp,Rtf中文乱码解决方法大搜集

<meta http-equiv='Content-Type' content='text/html; charset=GBK'>

 

知识库总目录： No.0 WebApplication开发知识库

    目前已总结Html、Jsp、Rtf的中文乱码解决方法，继续搜集中......（本文涉及字符集的均以GBK为例）

1.html中文乱码？

   在head区加入此句即可

 

2.JSP中文乱码？

    行首可有此行？

<%@ page contentType="text/html; charset=GBK"%>

 

3.使了上面一招JSP还显示乱码？

    OK，该经典的SetCharacterEncodingFilter上场了：）

package amosryan.web.control;import java.io.IOException;import javax.servlet.*;public class SetCharacterEncodingFilter implements Filter {protected String encoding;protected FilterConfig filterConfig;protected boolean ignore;public SetCharacterEncodingFilter() {encoding = null;filterConfig = null;ignore = true;}public void destroy() {encoding = null;filterConfig = null;}public void doFilter(ServletRequest request, ServletResponse response,FilterChain chain) throws IOException, ServletException {if (ignore || request.getCharacterEncoding() == null) {String encode = selectEncoding(request);if (encode != null)request.setCharacterEncoding(encode);}chain.doFilter(request, response);}public void init(FilterConfig filterConfig2) throws ServletException {filterConfig = filterConfig2;encoding = filterConfig2.getInitParameter("encoding");String value = filterConfig2.getInitParameter("ignore");if (value == null)ignore = true;else if (value.equalsIgnoreCase("true"))ignore = true;else if (value.equalsIgnoreCase("yes"))ignore = true;elseignore = false;}protected String selectEncoding(ServletRequest request) {return encoding;}}

    web.xml中的配置

 

    <filter>        <filter-name>Set Character Encoding</filter-name>        <filter-class>                             amosryan.web.control.SetCharacterEncodingFilter</filter-class>        <init-param>            <param-name>ignore</param-name>            <param-value>true</param-value>        </init-param>        <init-param>            <param-name>encoding</param-name>            <param-value>GBK</param-value>        </init-param>    </filter>    <filter-mapping>        <filter-name>Set Character Encoding</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>

 

4.写RTF中文乱码？

    用这个方法过滤下

  private static final String LINE_BREAK = "{\\rtlch\\fcs1 \\af0 \\ltrch\\fcs0 \\loch\\af0\\hich\\af0\\dbch\\af31505\\insrsid15663546 \\par }";  private static final String CN_HEAD = "\\loch\\af0\\hich\\af0\\dbch\\f31505";  private static char[] digital = "0123456789ABCDEF".toCharArray();/** * 字符串转换为rtf编码 *  * @param content * @return */public static String strToRtf(String content) throws Exception {if (content == null) {return "";}boolean includeChinese = false;StringBuilder sb = new StringBuilder(1024);for (char c : content.toCharArray()) {if (!includeChinese) {int intC = (int) c;if (intC > 256) {includeChinese = true;}}sb.append(convert(c));}if (includeChinese) {sb.insert(0, CN_HEAD);}String rtfStr = sb.toString();rtfStr = rtfStr.replace("\\'0D\\'0A", LINE_BREAK);return rtfStr;}private static String convert(char c) throws Exception {byte[] bs = String.valueOf(c).getBytes("GBK");StringBuilder sb = new StringBuilder(256);for (int i = 0; i < bs.length; i++) {int bit = (bs[i] & 0x0f0) >> 4;sb.append("\\'");sb.append(digital[bit]);bit = bs[i] & 0x0f;sb.append(digital[bit]);}return sb.toString();}