采用过滤器解决中文乱码问题
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 CharacterEncodingFilter implements Filter{
??? private FilterConfig config;
??? private String encoding;
??? private boolean enable;
???
??? public void destroy() {
??? ???
??? }
??? public void doFilter(ServletRequest request, ServletResponse response,
??? ??? ??? FilterChain filterChain) throws IOException, ServletException {
??? ???
??? ??? if(this.enable){
??? ??? ??? request.setCharacterEncoding(encoding);
??? ??? ??? response.setCharacterEncoding(encoding);
??? ??? }
??? ???
??? ??? filterChain.doFilter(request, response);
??? ???
??? ???
??? }
??? public void init(FilterConfig config) throws ServletException {
??? ??? this.config = config;
??? ??? loadConfigParams();
??? ???
??? ???
??? }
??? private void loadConfigParams() {
??? ??? this.encoding= this.config.getInitParameter("enconding");
??? ??? String flag = this.config.getInitParameter("enable");
??? ??? if(flag.equalsIgnoreCase("true")){
??? ??? ??? this.enable = true;
??? ??? }else{
??? ??? ??? this.enable = false;
??? ??? }
??? ???
??? ???
??? }
}
?
?
?
web.xml
?
<filter>
??? <filter-name>encondingFilter</filter-name>
??? <filter-class>com.morning.web.filter.CharacterEncodingFilter</filter-class>
??? <init-param>
??? ??? <param-name>enconding</param-name>
??? ??? <param-value>utf-8</param-value>
??? </init-param>
??? <init-param>
??? ??? <param-name>enable</param-name>
??? ??? <param-value>true</param-value>
??? </init-param>
</filter>
<filter-mapping>
??? <filter-name>encondingFilter</filter-name>
??? <url-pattern>*.do</url-pattern>
</filter-mapping>
