struts2拦截器解决请求乱码和输出乱码

转载自：http://lib.csdn.net/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();
}
}

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