Question

如何解决JSP页面中的中文乱码问题

Answer 1

建议编辑一个过滤器，一举解决所有编码问题。。

package mypackge;

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;

public class SetCharacterEncodingFilter implements Filter {

protected String encoding = null;

protected FilterConfig filterConfig = null;

protected boolean ignore = true;

public void destroy() {

this.encoding = null;
this.filterConfig = null;

}

public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {

if (ignore || (request.getCharacterEncoding() == null)) {
String encoding = selectEncoding(request);
if (encoding != null) {
request.setCharacterEncoding(encoding);
}
}
// Pass control on to the next filter
chain.doFilter(request, response);

}

public void init(FilterConfig filterConfig) throws ServletException {

this.filterConfig = filterConfig;
this.encoding = filterConfig.getInitParameter("encoding");
String value = filterConfig.getInitParameter("ignore");
if (value == null) {
this.ignore = true;
} else if (value.equalsIgnoreCase("true")) {
this.ignore = true;
} else if (value.equalsIgnoreCase("yes")) {
this.ignore = true;
} else {
this.ignore = false;
}

}

protected String selectEncoding(ServletRequest request) {

return (this.encoding);

}

}

然后在你的web.xml中配置拦截器。
<filter>
<filter-name>Encoding</filter-name>
<filter-class>mypackge.SetCharacterEncodingFilter </filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>此处填你需要的编码格式如gb2312</param-value>
</init-param>
<init-param>
<param-name>ignore</param-name>
<param-value>true</param-value>
</init-param>
</filter>

<filter-mapping>
<filter-name>Encoding</filter-name>
<servlet-name>/*</servlet-name>
</filter-mapping>

希望可以帮到你！

Answer 2

用GBK或者GBK2312的字符集
或者要国际话的话用UTF-8字符集

方法为在head部分加
<meta http-equiv="Content-Type" content="text/html; charset=GBK">