struts2拦截器解决请求乱码和输出乱码

最新推荐文章于 2025-12-01 13:49:36 发布

最新推荐文章于 2025-12-01 13:49:36 发布 · 165 阅读

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#java

本文介绍了一个自定义的Struts2编码拦截器，该拦截器能够处理POST请求及GET请求的编码转换问题，确保应用程序能正确地解析来自客户端的数据，并设置响应头避免浏览器缓存。

转载自：http://lib.youkuaiyun.com/snippet/javaee/44538

import java.io.UnsupportedEncodingException;
import java.util.Iterator;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.apache.struts2.StrutsStatics;
 
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
 
public class EncodingIntereptor extends AbstractInterceptor {
 
    private static final long serialVersionUID = 6826256332417695666L;
 
    @Override
    public String intercept(ActionInvocation invo) throws Exception {
        ActionContext  actionContext = invo.getInvocationContext();
        HttpServletRequest request= (HttpServletRequest) actionContext.get(StrutsStatics.HTTP_REQUEST);
        HttpServletResponse response= (HttpServletResponse) actionContext.get(StrutsStatics.HTTP_RESPONSE);
         if( request.getMethod().compareToIgnoreCase("post")>=0){ 
              try { 
                      request.setCharacterEncoding("utf-8");
                  } catch (UnsupportedEncodingException e) { 
                      e.printStackTrace(); 
                  } 
           }else{ 
              Iterator<String[]> iterval=request.getParameterMap().values().iterator(); 
              while(iterval.hasNext()){ 
                  String[] parames = iterval.next(); 
                   for (int i = 0; i < parames.length; i++) { 
                    try { 
                            parames[i]=new String(parames[i].getBytes("iso8859-1"),"utf-8");
                        } catch (UnsupportedEncodingException e) {  
                            e.printStackTrace(); 
                        } 
                   }    
                }    
            } 
            response.setContentType("text/html;charset=UTF-8");
            response.setHeader("Cache-Control", "no-cache"); 
            return invo.invoke(); 
    }
 
}