Tomcat中文亂碼問題filter解決

建立SetCharacterEncodingFilter類

 

package filter;

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 {

 /**
  * Take this filter out of service.
  */
 public void destroy() {
 }

 /**
  * Select and set (if specified) the character encoding to be used to
  * interpret request parameters for this request.
  */
 public void doFilter(ServletRequest request, ServletResponse response,
   FilterChain chain) throws IOException, ServletException {

  request.setCharacterEncoding("GBK");

  // 傳遞控制到下一個過濾器
  chain.doFilter(request, response);
 }

 public void init(FilterConfig filterConfig) throws ServletException {
 }

}

 

配置 web.xml

<filter>
  <filter-name>Set Character Encoding</filter-name>
  <filter-class>filter.SetCharacterEncodingFilter</filter-class>
 </filter>
 <filter-mapping>
  <filter-name>Set Character Encoding</filter-name>
  <url-pattern>/*</url-pattern>
 </filter-mapping>